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Journals

  1. T. Konidaris, A. Kesidis and B. Gatos, "A segmentation-free word spotting method for historical printed documents",  Pattern Analysis and Applications, Vol. 19, Issue 4, pp. 963-976, 2016. Download

  2. K. Ntirogiannis, B. Gatos and I. Pratikakis "A combined approach for the binarization of handwritten document images", Pattern Recognition Letters, Vol. 35, pp. 3 - 15, 2014. Download

  3. K. Zagoris, I. Pratikakis, A. Antonacopoulos, B. Gatos and N. Papamarkos "Distinction between handwritten and machine-printed text based on the bag of visual words model ", Pattern Recognition , Vol. 47, Issue 3, pp. 1051-1062, 2014. Download

  4. A Papandreou, B Gatos, SJ Perantonis and I Gerardis “Efficient skew detection of printed document images based on novel combination of enhanced profiles”, International Journal on Document Analysis and Recognition (IJDAR), Vol. 17, No. 4, pp. 433-454, 2014. Download

  5. A Papandreou and B. Gatos “Slant estimation and core-region detection for handwritten Latin words”, Pattern Recognition Letters, Vol. 35, pp. 16-22, 2014. Download

  6. K. Ntirogiannis, B. Gatos and I. Pratikakis, "Performance Evaluation Methodology for Historical Document Image Binarization", IEEE Transactions on Image Processing, Vol. 22, No. 2,  pp 595 -609, 2013. Download

  7. M. Anthimopoulos, B. Gatos, I. Pratikakis, “Detection of Artificial and Scene Text in Images and Video Frames”, Pattern Analysis and Applications, Vol. 16, No. 3, pp. 431-446, 2013. Download

  8. N. Stamatopoulos, B. Gatos and I. Pratikakis, “Performance Evaluation Methodology for Document Image Dewarping Techniques”, IET Image Processing, Vol. 6, No. 6, pp. 738-745, 2012. Download

  9. B. Gatos, N. Stamatopoulos, G. Louloudis, “ICDAR2009 handwriting segmentation contest”, International Journal on Document Analysis and Recognition (IJDAR), special issue on performance evaluation, Vol.14, No. 1, pp. 25-33, 2011. Download

  10. B. Gatos, K. Ntirogiannis, I. Pratikakis, “DIBCO 2009: document image binarization contest”, International Journal on Document Analysis and Recognition (IJDAR), special issue on performance evaluation, Vol.14, No. 1, pp. 35-44, 2011. Download

  11. N. Stamatopoulos, B. Gatos, I. Pratikakis and S.J. Perantonis, “Goal-oriented Rectification of Camera-Based Document Images”, IEEE Transactions on Image Processing, Vol. 20, No. 4, pp. 910-920, 2011. Download

  12. A. Kesidis, E. Galiotou, B. Gatos, I. Pratikakis, “A word spotting framework for historical machine-printed documents”, International Journal on Document Analysis and Recognition (IJDAR), vol. 14, no. 2, pp. 131-144, 2011. Download

  13. G. Vamvakas, B. Gatos, S. J. Perantonis, "Handwritten character recognition through two-stage foreground sub-sampling", Pattern Recognition, Vol. 43, Issue 8, pp.  2807-2816, 2010.  Download [cited by 1]

  14. M. Anthimopoulos, B. Gatos, I. Pratikakis, "A two-stage scheme for text detection in video images", Image and Vision Computing, Vol. 28 , Issue 9, pp. 1413-1426, 2010. Download [cited by 3]

  15. N. Nikolaou, M. Makridis, B. Gatos, N. Stamatopoulos, N. Papamarkos, "Segmentation of historical machine-printed documents using Adaptive Run Length Smoothing and skeleton segmentation paths", Image and Vision Computing, Vol. 28 , Issue 4, pp. 590-604, 2010. Download [cited by 1]

  16. N. Stamatopoulos, B. Gatos, S. J. Perantonis, "A method for combining complementary techniques for document image segmentation", Pattern Recognition, Vol. 42, Issue 12, pp.  3158-3168, 2009. Download 

  17. G. Louloudis, B. Gatos, I. Pratikakis, C. Halatsis, "Text line and word segmentation of handwritten documents", Pattern Recognition, Vol. 42, Issue 12, pp.  3169-3183, 2009. Download [cited by 10]

  18. G. Louloudis, B. Gatos, I. Pratikakis, C. Halatsis, "Text line detection in handwritten documents", Pattern Recognition, Vol. 41, Issue 12, pp. 3758-3772, 2008. Download [cited by 11]

  19. K. Ntzios, B. Gatos, I. Pratikakis, T. Konidaris and S.J. Perantonis, "An Old Greek Handwritten OCR System based on an Efficient Segmentation-free Approach", International Journal on Document Analysis and Recognition (IJDAR), special issue on historical documents, Vol. 9, No. 2-4, pp. 179-192, 2007. Download [cited by 4]

  20. T. Konidaris, B. Gatos, K. Ntzios, I. Pratikakis, S. Theodoridis and S. J. Perantonis, "Keyword-Guided Word Spotting in Historical Printed Documents Using Synthetic Data and User feedback", International Journal on Document Analysis and Recognition (IJDAR), special issue on historical documents, Vol. 9, No. 2-4, pp. 167-177, 2007. Download [cited by 15]

  21. B. Gatos, I. Pratikakis and S. J. Perantonis, "Adaptive Degraded Document Image Binarization", Pattern Recognition, Vol. 39, pp. 317-327, 2006. Download [cited by 82]

  22. B. Gatos, K. Ntzios, I. Pratikakis, S. Petridis, T. Konidaris and S. J. Perantonis, "An Efficient Segmentation-free Approach to Assist Old Greek Handwritten Manuscript OCR ", Pattern Analysis and Applications (PAA), Vol. 8, Num. 4, pp. 305-320, 2006. Download. [cited by 2]

  23. I. Pratikakis, Ι. Vanhamel, Η., Sahli, B. Gatos and S. Perantonis, "Unsupervised watershed-driven region-based image retrieval", IEE Vision Image and Signal Processing, Special Issue on Knowledge-based digital media processing, vol. 153, Issue 3, pp. 313-322, 2006. Download [cited by 13]

  24. S.J. Perantonis, B. Gatos, K. Ntzios, I. Pratikakis, I. Vrettaros, A. Drigas, C. Emmanouilidis, A. Kesidis and D. Kalomirakis, "Digitization, Processing and Recognition of Old Greek Manuscripts (The  D- SCRIBE Project)", International Journal Information Theories & Applications (IJ ITA), Vol. 11, No 3, pp.232-240, 2004. Download

  25. S.J. Perantonis, B. Gatos, K. Ntzios, I. Pratikakis, I. Vrettaros, A.S. Drigas, C. Emmanouilidis, A. Kesidis, D. Kalomirakis, "A System for Processing and Recognition of Old Greek Manuscripts (The D-SCRIBE Project)", WSEAS Transactions on Computers, Issue 6, Volume 3, pp. 2049-2057, 2004. Download

  26. B. Gatos, N. Papamarkos, I. Andreadis and S. J. Perantonis, "Fast Implementation of Morphological Operations Using Image Block Decomposition", International Journal of Image and Graphics (IJIG), Vol. 4, No. 2, pp. 183-202, 2004. Download

  27. B. Gatos, S.L. Mantzaris, S.J. Perantonis and A. Tsigris, "Automatic page analysis for the creation of a digital library from newspaper archives", International Journal on Digital Libraries (IJODL), Vol. 3(1), pp. 77-84, 2000. Download

  28. S. J. Perantonis, B. Gatos and N. Papamarkos, "Block decomposition and segmentation for fast Hough transform evaluation", Pattern Recognition, Vol. 32(5), pp. 811-824, 1999. Download [cited by 13]

  29. B. Gatos, N. Papamarkos and C. Chamzas, "A binary tree based OCR technique for machine printed characters", Engineering Applications of Artificial Intelligence, Vol. 10, No. 4, pp. 403-412, 1997. Download [cited by 1]

  30. B. Gatos, N. Papamarkos and C. Chamzas, "Using curvature features in a multiclassifier OCR system", Engineering Applications of Artificial Intelligence, Vol. 10, No. 2, pp. 213-224, 1997. Download  [cited by 2]

  31. B. Gatos, N. Papamarkos and C. Chamzas, "Skew detection and text line position determination in digitized documents", Pattern Recognition, Vol. 30, No. 9, pp. 1505-1519, 1997. Download [cited by 37]

  32. B. Gatos, S. J. Perantonis and N. Papamarkos, "Accelerated Hough transform using rectangular image decomposition", Electronics Letters, Vol. 32, No. 8, pp. 730-732, 1996. Download [cited by 8]

  33. N. Papamarkos and B. Gatos, "A new approach for multilevel threshold selection", Computer Vision, Graphics, and Image Processing - Graphical Models and Image Processing, Vol. 56, No. 5, pp. 357-370, Sept. 1994. Download [cited by 43]

Conferences

  1. G.Sfikas, G.Louloudis, N.Stamatopoulos and B.Gatos, "Bayesian mixture models on connected components for Newspaper article segmentation", ACM Symposium on Document Engineering (DocEng'16), pp. 143 - 146, 2016. Download

  2. G. Retsinas, G. Louloudis, N. Stamatopoulos and B. Gatos, "Efficient Document Image Segmentation Representation by Approximating Minimum-Link Polygons", 12th IAPR International Workshop on Document Analysis Systems (DAS’16), pp. 293 - 298, 2016. Download

  3. G. Louloudis, G. Sfikas, N. Stamatopoulos and B. Gatos, "Word Segmentation Using the Student’s-t Distribution", 12th IAPR International Workshop on Document Analysis Systems (DAS’16), pp. 78 - 83, 2016. Download

  4. V. Katsouros, V. Papavassiliou, F. Simistira and B. Gatos, "Recognition of Greek Polytonic on Historical Degraded Texts Using HMMs", 12th IAPR International Workshop on Document Analysis Systems (DAS’16), pp. 346-351, 2016. Download

  5. A. Papandreou, B. Gatos and K. Zagoris, "An Adaptive Zoning Technique for Word Spotting Using Dynamic Time Warping", 12th IAPR International Workshop on Document Analysis Systems (DAS’16), pp. 387 - 392, 2016. Download

  6. G. Retsinas, G. Louloudis, N. Stamatopoulos and B. Gatos, "Keyword Spotting in Handwritten Documents Using Projections of Oriented Gradients", 12th IAPR International Workshop on Document Analysis Systems (DAS’16), pp. 411 - 416, 2016. Download

  7. B. Gatos, N. Stamatopoulos, G. Louloudis, G. Sfikas, G. Retsinas, F. Simistira, V. Papavassiliou and V. Katsouros, "GRPOLY-DB: An Old Greek Polytonic Document Image Database", 13th International Conference on Document Analysis and Recognition (ICDAR 2015), pp. 646 - 650, 2015. Download

  8. A. Giotis, G. Sfikas, C. Nikou and B. Gatos, "Shape-based Word Spotting in Handwritten Document Images", 13th International Conference on Document Analysis and Recognition (ICDAR 2015), pp. 561 - 565, 2015. Download

  9. G. Retsinas, B. Gatos, N. Stamatopoulos and G. Louloudis, "Isolated Character Recognition using Projections of Oriented Gradients", 13th International Conference on Document Analysis and Recognition (ICDAR 2015), pp. 336 - 340, 2015. Download

  10. G. Sfikas, A. Giotis, G. Louloudis and B. Gatos, "Using Attributes for Word Spotting and Recognition in Polytonic Greek Documents", 13th International Conference on Document Analysis and Recognition (ICDAR 2015), pp. 686 - 690, 2015. Download

  11. F. Simistira, A. Hassan, V. Papavassiliou, B. Gatos, V. Katsouros and M. Liwicki, "Recognition of Historical Greek Polytonic Scripts Using LSTM Networks", 13th International Conference on Document Analysis and Recognition (ICDAR 2015), pp. 766 - 770, 2015. Download

  12. N. Stamatopoulos, G. Louloudis and B. Gatos, "Goal-Oriented Performance Evaluation Methodology for Page Segmentation Techniques", 13th International Conference on Document Analysis and Recognition (ICDAR 2015), pp. 281 - 285, 2015. Download

  13. G. Retsinas, B. Gatos, A. Antonacopoulos, G. Louloudis and N. Stamatopoulos, "Historical Typewritten Document Recognition Using Minimal User Interaction", 3rd International Workshop on Historical Document Imaging and Processing (HIP 2015), pp. 31 - 38, 2015. Download

  14. Konstantinos Zagoris, Ioannis Pratikakis and Basilis Gatos, "A Framework for Efficient Transcription of Historical Documents Using Keyword Spotting", 3rd International Workshop on Historical Document Imaging and Processing (HIP 2015), pp. 9 - 14, 2015. Download

  15. B. Gatos, N. Stamatopoulos, G. Louloudis and S. Perantonis “H-DocPro: a document image processing platform for historical documents”, First International Conference on Digital Access to Textual Cultural Heritage (DATECH’14), pp. 131-136, 2014. Download

  16. A Papandreou, B Gatos, G Louloudis “An adaptive zoning technique for efficient word retrieval using dynamic time warping”, First International Conference on Digital Access to Textual Cultural Heritage (DATECH’14), pp. 147-152, 2014. Download

  17. B. Gatos, G. Louloudis, T. Causer, K. Grint, V. Romero, J. A. Sánchez, A. Toselli, E. Vidal “Ground-Truth Production in the Transcriptorium Project”, 11th IAPR International Workshop on Document Analysis Systems (DAS’14), pp. 237-241, 2014. Download

  18. K. Ntirogiannis, B. Gatos and I. Pratikakis "ICFHR2014 Competition on Handwritten Document Image Binarization (H-DIBCO 2014)", 14th International Conference on Frontiers in Handwriting Recognition (ICFHR’14), pp. 809-813, 2014. Download

  19. I. Pratikakis, K. Zagoris, B. Gatos, G. Louloudis and N. Stamatopoulos "ICFHR 2014 Competition on Handwritten KeyWord Spotting (H-KWS 2014)", 14th International Conference on Frontiers in Handwriting Recognition (ICFHR’14), pp. 814-819, 2014. Download

  20. K. Zagoris, I. Pratikakis and B. Gatos "Segmentation-based Historical Handwritten Word Spotting using Document-Specific Local Features", 14th International Conference on Frontiers in Handwriting Recognition (ICFHR’14), pp. 9-14, 2014. Download

  21. N. Stamatopoulos, G. Louloudis and B. Gatos “A Novel Transcript Mapping Technique for Handwritten Document Images”, 14th International Conference on Frontiers in Handwriting Recognition (ICFHR'14), pp. 41-46, 2014. Download

  22. B. Gatos, G. Louloudis and N. Stamatopoulos “Segmentation of Historical Handwritten Documents into Text Zones and Text Lines”, 14th International Conference on Frontiers in Handwriting Recognition (ICFHR'14), pp. 464-469, 2014. Download

  23. I. Pratikakis, B. Gatos and K. Ntirogiannis, “ICDAR 2013 document image binarization contest (DIBCO 2013)”,  12th International Conference on Document Analysis and Recognition (ICDAR 2013), pp. 1471 - 1476, 2013. Download

  24. A. Papandreou, B. Gatos, G. Louloudis and N. Stamatopoulos “ICDAR 2013 Document Image Skew Estimation Contest (DISEC 2013)”, 12th International Conference on Document Analysis and Recognition (ICDAR 2013), pp. 1444 - 1448, 2013. Download

  25. N. Stamatopoulos, B. Gatos, G. Louloudis, U. Pal and A. Alaei, “ICDAR 2013 Handwriting Segmentation Contest“, 12th International Conference on Document Analysis and Recognition (ICDAR 2013), pp. 1402 - 1406, 2013. Download

  26. A. Papandreou and B. Gatos, “A Coarse to Fine Skew Estimation Technique for Handwritten Words”, 12th International Conference on Document Analysis and Recognition (ICDAR 2013), pp. 225 - 229, 2013. Download

  27. G. Louloudis, B. Gatos, N. Stamatopoulos and A. Papandreou, "ICDAR 2013 Competition on Writer Identification Document Analysis and Recognition", 12th International Conference on Document Analysis and Recognition (ICDAR 2013), pp. 1397 - 1401, 2013. Download

  28. J.A. Sánchez, G. Mühlberger, B. Gatos, P. Schofield, K. Depuydt, R.M. Davis and E. Vidal “TranScriptorium: a european project on handwritten text recognition”, 2013 ACM symposium on Document engineering, pp 227-228, 2013. Download

  29. G. Louloudis, B. Gatos and N. Stamatopoulos, “ICFHR2012 Competition on Writer Identification - Challenge 1: Latin/Greek Documents”, 13th International Conference on Frontiers in Handwriting Recognition (ICFHR'12), pp. 825-830, Bari, Italy, September 2012. Download

  30. I. Pratikakis, B. Gatos and K. Ntirogiannis, "ICFHR 2012 Competition on Handwritten Document Image Binarization (H-DIBCO 2012)", 13th International Conference on Frontiers in Handwriting Recognition (ICFHR'12), pp. 813-818, Bari, Italy, September 2012. Download

  31. K. Zagoris, I. Pratikakis, A. Antonacopoulos, B. Gatos and N. Papamarkos, "Handwritten and Machine Printed Text Separation in Document Images using the Bag of Visual Words Paradigm", 13th International Conference on Frontiers in Handwriting Recognition (ICFHR'12), pp. 103-108, Bari, Italy, September 2012. Download

  32. G. Louloudis, A. L. Kesidis and B. Gatos, “Efficient word retrieval using a multiple ranking combination scheme”, 10th International Workshop on Document Analysis Systems (DAS 2012), pp. 379-383, Gold Coast, Australia, March 2012. Download

  33. A. Papandreou and B. Gatos, “Word Slant Estimation Using Non-Horizontal Character Parts And Core-Region Information”, 10th International Workshop on Document Analysis Systems (DAS 2012), pp. 307-311, Gold Coast, Australia, March 2012. Download

  34. B. Gatos, G. Louloudis and N. Stamatopoulos, “Greek Polytonic OCR Based on Efficient Character Class Number Reduction”, 11th International Conference on Document Analysis and Recognition (ICDAR 2011), pp. 1155 - 1159, Beijing, China, September 2011. Download

  35. B. Gatos, A. Kesidis and A. Papandreou, “Adaptive Zoning Features for Character and Word Recognition”, 11th International Conference on Document Analysis and Recognition (ICDAR 2011), pp. 1160 - 1164, Beijing, China, September 2011. Download

  36. A. Kesidis and B. Gatos, “Efficient Cut-Off Threshold Estimation for Word Spotting Applications”, 11th International Conference on Document Analysis and Recognition (ICDAR 2011), pp. 279 - 283, Beijing, China, September 2011. Download

  37. K. Ntirogiannis, B. Gatos and I. Pratikakis, “Binarization of Textual Content in Video Frames”, 11th International Conference on Document Analysis and Recognition (ICDAR 2011), pp. 673 - 677, Beijing, China, September 2011. Download

  38. A. Papandreou and B. Gatos, “A Novel Skew Detection Technique Based on Vertical Projections”, 11th International Conference on Document Analysis and Recognition (ICDAR 2011), pp. 384 - 388, Beijing, China, September 2011. Download

  39. S. Colutto and B. Gatos,  “Efficient Word Recognition Using a Pixel-Based Dissimilarity Measure”, 11th International Conference on Document Analysis and Recognition (ICDAR 2011), pp. 1110 - 1114, Beijing, China, September 2011. Download

  40. I. Pratikakis, B. Gatos and K. Ntirogiannis, “ICDAR 2011 Document Image Binarization Contest (DIBCO 2011)”, 11th International Conference on Document Analysis and Recognition (ICDAR 2011), pp. 1506 - 1510, Beijing, China, September 2011. Download

  41. G. Louloudis, N. Stamatopoulos and B. Gatos, “ICDAR 2011 Writer Identification Contest”, 11th International Conference on Document Analysis and Recognition (ICDAR 2011), pp. 1475 - 1479, Beijing, China, September 2011. Download

  42. B. Gatos, N. Stamatopoulos and G. Louloudis, “ICFHR 2010 Handwriting Segmentation Contest”, 12th International Conference on Frontiers in Handwriting Recognition (ICFHR'10), pp. 737-742, Kolkata, India, November 2010. Download

  43. I. Pratikakis, B. Gatos, K. Ntirogiannis, “H-DIBCO 2010 – Handwritten Document Image Binarization Competition”, 12th International Conference on Frontiers in Handwriting Recognition (ICFHR'10), pp. 727-732, Kolkata, India, November 2010. Download [cited by 1]

  44. N. Stamatopoulos, G. Louloudis and B. Gatos, “Efficient Transcript Mapping to Ease the Creation of Document Image Segmentation Ground Truth with Text-Image Alignment”, 12th International Conference on Frontiers in Handwriting Recognition (ICFHR'10), pp. 226-231, Kolkata, India, November 2010. Download

  45. N. Stamatopoulos, B. Gatos and T. Georgiou, “Page Frame Detection for Double Page Document Images”, 9th International Workshop on Document Analysis Systems (DAS'10), pp. 401-408, Boston, MA, USA, June 2010. Download

  46. G. Vamvakas, N. Stamatopoulos, B Gatos and S.J. Perantonis, “Automatic Unsupervised Parameter Selection for Character Segmentation”, 9th International Workshop on Document Analysis Systems (DAS'10), pp. 409-415, Boston, MA, USA, June 2010. Download

  47. B. Gatos, N. Stamatopoulos and G. Louloudis, "ICDAR2009 Handwriting Segmentation Contest", 10th International Conference on Document Analysis and Recognition (ICDAR'09), pp. 1393-1397, Barcelona, Spain, July 2009. Download [cited by 4]

  48. B. Gatos, K. Ntirogiannis and I. Pratikakis, "ICDAR 2009 Document Image Binarization Contest (DIBCO 2009)", 10th International Conference on Document Analysis and Recognition (ICDAR'09), pp. 1375-1382, Barcelona, Spain, July 2009. Download [cited by 11]

  49. B. Gatos and I. Pratikakis, "Segmentation-free Word Spotting in Historical Printed Documents", 10th International Conference on Document Analysis and Recognition (ICDAR'09), pp. 271-275, Barcelona, Spain, July 2009. Download

  50. G. Vamvakas, B. Gatos and S. J. Perantonis, "A Novel Feature Extraction and Classification Methodology for the Recognition of Historical Documents", 10th International Conference on Document Analysis and Recognition (ICDAR'09), pp. 491-495, Barcelona, Spain, July 2009. Download

  51. A. Nicolaou and B. Gatos, "Handwritten Text Line Segmentation by Shredding Text into its Lines", 10th International Conference on Document Analysis and Recognition (ICDAR'09), pp. 626-630, Barcelona, Spain, July 2009. Download [cited by 2]

  52. G. Louloudis, N. Stamatopoulos and B. Gatos, "A Novel Two Stage Evaluation Methodology for Word Segmentation Techniques", 10th International Conference on Document Analysis and Recognition (ICDAR'09), pp. 686-690, Barcelona, Spain, July 2009. Download

  53. N. Stamatopoulos, B. Gatos and I. Pratikakis, "A Methodology for Document Image Dewarping Techniques Performance Evaluation", 10th International Conference on Document Analysis and Recognition (ICDAR'09), pp. 956-960, Barcelona, Spain, July 2009. Download

  54. K. Ntirogiannis, B. Gatos and I. Pratikakis, "A Modified Adaptive Logical Level Binarization Technique for Historical Document Images", 10th International Conference on Document Analysis and Recognition (ICDAR'09), pp. 1171-1175, Barcelona, Spain, July 2009. Download

  55. N. Stamatopoulos, G. Louloudis and B. Gatos, "A comprehensive evaluation methodology for noisy historical document recognition techniques", 3rd  Workshop on Analytics for Noisy Unstructured Text Data (AND'09), pp. 47-54, Barcelona, Spain, July 2009. Download 

  56. A. Kesidis, E. Galiotou, B. Gatos, A. Lampropoulos, I. Pratikakis, I. Manolessou and A. Ralli, "Accessing the content of Greek historical documents", 3rd  Workshop on Analytics for Noisy Unstructured Text Data (AND'09), pp. 55-62, Barcelona, Spain, July 2009. Download

  57. B. Gatos, I. Pratikakis and S. J. Perantonis, "Improved Document Image Binarization by Using a Combination of Multiple Binarization Techniques and Adapted Edge Information", 19th International Conference on Pattern Recognition (ICPR'08),  ISBN: 978-1-4244-2175-6/08, Tampa, Florida, USA, December 2008. Download [cited by 1]

  58. B. Gatos, I. Pratikakis and S. J. Perantonis, "Efficient Binarization of Historical and Degraded Document Images", 8th International Workshop on Document Analysis Systems (DAS'08), pp. 447-454, Nara, Japan, September 2008. Download [cited by 3]

  59. N. Stamatopoulos, B. Gatos, I. Pratikakis and S. J. Perantonis, "A Two-Step Dewarping of Camera Document Images", 8th International Workshop on Document Analysis Systems (DAS'08), pp. 209-216, Nara, Japan, September 2008. Download [cited by 5]

  60. K. Ntirogiannis, B. Gatos and I. Pratikakis, "An Objective Evaluation Methodology for Document Image Binarization Techniques", 8th International Workshop on Document Analysis Systems (DAS'08), pp. 217-224, Nara, Japan, September 2008. Download

  61. G. Vamvakas, B. Gatos, N. Stamatopoulos, and S.J.Perantonis, "A Complete Optical Character Recognition Methodology for Historical Documents", 8th International Workshop on Document Analysis Systems (DAS'08), pp. 525-532, Nara, Japan, September 2008. Download [cited by 4]

  62. M. Anthimopoulos, B. Gatos, and I. Pratikakis, "A Hybrid System for Text Detection in Video Frames", 8th International Workshop on Document Analysis Systems (DAS'08), pp. 286-292, Nara, Japan, September 2008. Download [cited by 5]

  63. T. Konidaris, B. Gatos, S. J. Perantonis and A. Kesidis, "Keyword Matching in Historical Machine-Printed Documents Using Synthetic Data,Word Portions and Dynamic TimeWarping", 8th International Workshop on Document Analysis Systems (DAS'08), pp. 539-545, Nara, Japan, September 2008. Download [cited by 1]

  64. N. Stamatopoulos, B. Gatos and S. J. Perantonis, "A Method for Combining Complementary Techniques for Document Image Segmentation", 11th International Conference on Frontiers in Handwriting Recognition (ICFHR'08), pp. 235-240, Montreal, Canada, August 2008. Download

  65. G. Louloudis, B. Gatos, I. Pratikakis and C. Halatsis, "Line and Word Segmentation of Handwritten Documents", 11th International Conference on Frontiers in Handwriting Recognition (ICFHR'08), pp. 247-252, Montreal, Canada, August 2008. Download

  66. K. Ntirogiannis, B. Gatos and I. Pratikakis, "An Objective Evaluation Methodology for Handwritten Image Document Binarization Techniques", 11th International Conference on Frontiers in Handwriting Recognition (ICFHR'08), pp. 586-591, Montreal, Canada, August 2008. Download

  67. G. Vamvakas, B. Gatos and S. J. Perantonis, "Hierarchical Classification of Handwritten Characters based on Novel Structural Features", 11th International Conference on Frontiers in Handwriting Recognition (ICFHR'08), pp. 535-539, Montreal, Canada, August 2008. Download

  68. B. Gatos, A. Antonacopoulos and N. Stamatopoulos, "ICDAR2007 Handwriting Segmentation Contest", 9th International Conference on Document Analysis and Recognition (ICDAR'07), pp. 1284-1288, Curitiba, Brazil, September 2007. Download [cited by 20]

  69. A. Antonacopoulos, B. Gatos and D. Bridson, "ICDAR2007 Page Segmentation Competition", 9th International Conference on Document Analysis and Recognition (ICDAR'07), pp. 1279-1283, Curitiba, Brazil, September 2007. Download [cited by 11]

  70. B. Gatos, I. Pratikakis and K. Ntirogiannis, "Segmentation Based Recovery of Arbitrarily Warped Document Images", 9th International Conference on Document Analysis and Recognition (ICDAR'07), pp. 989-993, Curitiba, Brazil, September 2007. Download [cited by 6]

  71. M. Makridis, N. Nikolaou and B. Gatos, "An Efficient Word Segmentation Technique for Historical and Degraded Machine-Printed Documents", 9th International Conference on Document Analysis and Recognition (ICDAR'07), pp. 178-182, Curitiba, Brazil, September 2007. Download [cited by 3]

  72. G. Louloudis, B. Gatos and C. Halatsis, "Text Line Detection in Unconstrained Handwritten Documents Using a Block-Based Hough Transform Approach", 9th International Conference on Document Analysis and Recognition (ICDAR'07), pp. 599-603, Curitiba, Brazil, September 2007. Download [cited by 4]

  73. G. Vamvakas, B. Gatos, S. Petridis and N. Stamatopoulos, "An Efficient Feature Extraction and Dimensionality Reduction Scheme for Isolated Greek Handwritten Character Recognition", 9th International Conference on Document Analysis and Recognition (ICDAR'07), pp. 1073-1077, Curitiba, Brazil, September 2007. Download

  74. N. Stamatopoulos, B. Gatos and A. Kesidis, "Automatic Borders Detection of Camera Document Images", 2nd  International Workshop on Camera-Based Document Analysis and Recognition (CBDAR'07), pp. 71-78, Curitiba, Brazil, September 2007. Download

  75. G. Vamvakas, N. Stamatopoulos, B Gatos, I. Pratikakis and S. J. Perantonis, "Greek Handwritten Character Recognition", 11th Panhellenic Conference on Informatics (PCI 2007), pp. 343-352, Patras, Greece, May 2007. Download

  76. M. Anthimopoulos, B. Gatos and I. Pratikakis, "Text detection in video frames", 11th Panhellenic Conference on Informatics (PCI 2007), pp. 361-370, Patras, Greece, May 2007. Download

  77. A. Kesidis and B. Gatos, "A Robust Image Watermarking Technique Based on Spectrum Analysis and Pseudorandom Sequences", 2nd International Conference on Computer Vision Theory and Applications (VISAPP 2007), pp. 121-126, Barcelona, Spain, March, 2007. Download

  78. M. Anthimopoulos, B. Gatos and I. Pratikakis, "Multiresolution Text Detection in Video Frames", 2nd International Conference on Computer Vision Theory and Applications (VISAPP 2007), pp. 161-166, Barcelona, Spain, March 2007. Download

  79. M. Anthimopoulos, B. Gatos, I. Pratikakis, S. J. Perantonis, "Detecting Text in Video Frames", The Fourth IASTED International Conference on Signal Processing, Pattern Recognition, and Applications (SPPRA 2007), ISBN: 978-0-88986-646-1, pp. 39-44, Innsbruck, Austria, February 2007. Download [cited by 1]

  80. B. Gatos and K. Ntirogiannis, "Restoration of Arbitrarily Warped Document Images Based on Text Line and Word Detection", The Fourth IASTED International Conference on Signal Processing, Pattern Recognition, and Applications (SPPRA 2007), ISBN: 978-0-88986-646-1, pp. 203-208, Innsbruck, Austria, February 2007. Download [cited by 2]

  81. G. Vamvakas, B. Gatos, I. Pratikakis, N. Stamatopoulos, A. Roniotis and S.J. Perantonis, "Hybrid Off-Line OCR for Isolated Handwritten Greek Characters", The Fourth IASTED International Conference on Signal Processing, Pattern Recognition, and Applications (SPPRA 2007), ISBN: 978-0-88986-646-1, pp. 197-202, Innsbruck, Austria, February 2007. Download [cited by 1]

  82. B. Gatos, I. Pratikakis, A.L. Kesidis and S.J. Perantonis, "Efficient Off-Line Cursive Handwritten Word Recognition", 10th International Workshop on Frontiers in Handwriting Recognition (IWFHR 2006),  pp. 121-125,  La Baule, France,  October 2006. Download

  83. G. Louloudis, K. Halatsis, B. Gatos, I. Pratikakis, "A Block-Based Hough Transform Mapping for Text Line Detection in Handwritten Documents", 10th International Workshop on Frontiers in Handwriting Recognition (IWFHR 2006),  pp. 515-520, La Baule, France, October 2006. Download

  84. B. Gatos, I. Pratikakis and S.J. Perantonis, "Hybrid Off-Line Cursive Handwritten Word Recognition", 18th International Conference on Pattern Recognition (ICPR2006), pp. 998-1001, Hong Kong, August 2006. Download [cited by 2]

  85. D. Kosmopoulos, S. Petridis, I. Pratikakis, B. Gatos, S. Perantonis, V. Karkaletsis, G. Paliouras, "Knowledge Acquisition from Multimedia Content using an Evolution Framework, 3rd. IFIP Conference on Artificial Intelligence Applications & Innovations, pp. 557-565, Athens, Greece, June 2006. Download

  86. Β. Gatos, T. Konidaris, I. Pratikakis and S. Perantonis, "A holistic methodology for keyword search in historical typewritten documents", 4th Hellenic Conference on Artificial Intelligence, Lecture Notes in Computer Science (LNCS), vol. 3955, pp. 490-493, Irakleion, Greece, May 2006. Download

  87.  I. Pratikakis, B. Gatos and Stelios C.A. Thomopoulos, "Scene categorisation using low-level visual features", International Conference on Computer Vision Theory and Applications (VISAPP06), pp. 155-160, Setubal, Portugal, Feb. 25-28, 2006.

  88. Download
  89. C. D. Spyropoulos, G. Paliouras, V. Karkaletsis, D. Kosmopoulos, I. Pratikakis, S. Perantonis, B. Gatos, "BOEMIE: Bootstrapping Ontology Evolution with Multimedia Information Extraction",  2nd European Workshop on Integration of Knowledge, Semantic and Digital Media Technologies, pp. 419-420, London, UK, November 2005. Download

  90. B. Gatos, T. Konidaris, K. Ntzios, I. Pratikakis and S. J. Perantonis, "A Segmentation-free Approach for Keyword Search in Historical Typewritten Documents", 8th International Conference on Document Analysis and Recognition (ICDAR'05), pp. 54-58, Seoul, Korea, August 2005. Download [cited by 6]

  91. K. Ntzios, B. Gatos, I. Pratikakis, T. Konidaris and S. J. Perantonis, "An Old Greek Handwritten OCR System", 8th International Conference on Document Analysis and Recognition (ICDAR'05), pp. 64-68, Seoul, Korea, August 2005. Download [cited by 1]

  92. A. Antonacopoulos, B. Gatos and D. Bridson, "ICDAR2005 Page Segmentation Competition", 8th International Conference on Document Analysis and Recognition (ICDAR'05), pp. 75-79, Seoul, Korea, August 2005. Download [cited by 11]

  93. Β. Gatos, Ι. Pratikakis and Perantonis S.J. "Text detection in indoor/outdoor scene images", First International Workshop on Camera-based Document Analysis and Recognition (CBDAR'05), pp. 127-132, Seoul, Korea, August 2005. Download

  94. B. Gatos, D. Danatsas, I. Pratikakis and S. J. Perantonis, "Automatic Table Detection in Document Images", 3rd International Conference on Advances in Pattern Recognition (ICAPR'05), pp. 612-621, Path, UK, August 2005. Download [cited by 4]

  95. B. Gatos, I. Pratikakis and S.J. Perantonis, "Towards text recognition in natural scene images", 5th International Conference on Automation and Technology (ICTA'05), pp. 354-359, Thessaloniki, Greece, 2005. Download

  96. I. Pratikakis, I. Vanhamel, H. Sahli, B. Gatos and S. Perantonis, "Object-driven content-based image retrieval", 12th International Workshop on Systems, Signals and Image Processing (IWSSIP'05), pp. 189-193, INDERSCIENCE Publishers, ISBN 0-907776-20-5, 22-24 September, Chalkida, Greece, 2005. Download

  97. I. Pratikakis, I. Vanhamel, H, Sahli, B, Gatos and S. Perantonis, "Watershed-driven region-based image retrieval", International Symposium on Mathematical Morphology, pp. 207-216, Paris, France, 2005.

  98. C.D. Spyropoulos, G. Paliouras, V. Karkaletsis, D. Kosmopoulos, I. Pratikakis, S. Perantonis, B. Gatos, "BOEMIE: bootstrapping ontology evolution with multimedia information extraction", 2nd European Workshop on the Integration of Knowledge, Semantics and Digital Media Technology (EWIMT 2005) pp. 419-420, 2005. Download

  99. I. Pratikakis, I. Vanhamel, H. Sahli, Z. Efraimidis, B. Gatos and S. Perantonis, "Unsupervised region-based image retrieval", European Workshop on the Integration of Knowledge, Semantic and Digital Media Technologies, pp. 39-46, London, UK, 2004.

  100. B. Gatos, K. Ntzios, I. Pratikakis, S. Petridis, T. Konidaris and S. J. Perantonis, "A segmentation-free recognition technique to assist old Greek handwritten manuscript OCR", IAPR Workshop on Document Analysis systems (DAS'2004), Lecture Notes in Computer Science (3163), pp. 63-74, Florence, Italy, September 2004. Download [cited by 1]

  101. B. Gatos, I. Pratikakis and S. J. Perantonis, "An adaptive binarisation technique for low quality historical documents", IAPR Workshop on Document Analysis systems (DAS’2004), Lecture Notes in Computer Science (3163), pp. 102-113, Florence, Italy, September 2004. Download [cited by 16]

  102. B. Gatos, I. Pratikakis and S. J. Perantonis, "Locating Text in historical collection manuscripts", 3rd Hellenic Conference on Artificial Intelligence, Lecture Notes in Artificial Intelligence (3025), pp. 476-485, Samos, Greece, May 2004. Download [cited by 1]

  103. S. J. Perantonis, B. Gatos, V. Maragos, V. Karkaletsis and G. Petasis, "Text Area Identification in Web Images", 3rd Hellenic Conference on Artificial Intelligence, Lecture Notes in Artificial Intelligence (3025), pp. 82-92, Samos, Greece, May 2004. Download [cited by 2]

  104. B. Gatos, N. Papamarkos and S. J. Perantonis, "Comparing Point and Block Representation in Computer Vision and Image Processing Tasks", 3rd Hellenic Conference on Artificial Intelligence, pp. 217-226, Samos, Greece, 2004. Download

  105. S. J. Perantonis, B. Gatos and V. Maragos, "A Novel Web Image Processing Algorithm for Text Area Identification that Helps Commercial OCR Engines to Improve Their Web Image Recognition Efficiency", Second International Workshop on Web Document Analysis (WDA2003), pp. 61-64, Edinburgh, Scotland, August 2003. Download

  106. A. Antonacopoulos, B. Gatos and D. Karatzas, "ICDAR 2003 Page Segmentation Competition", 7th International Conference on Document Analysis and Recognition (ICDAR'03), pp. 688-692, Edinburgh, Scotland, August 2003. Download

  107. B. Gatos and N. Papamarkos, "Applying Fast Segmentation Techniques at a Binary Image Represented by a Set of Non-Overlapping Blocks", Sixth International Conference on Document Analysis and Recognition (ICDAR'01), pp. 1147-1151, Seattle, USA, September 2001. Download

  108. B. Gatos, S. L. Mantzaris and A. Antonacopoulos, “First International Newspaper Segmentation Contest”, Sixth International Conference on Document Analysis and Recognition (ICDAR'01), pp. 1190-1194, Seattle, USA, September 2001. Download

  109. B. Gatos, S. L. Mantzaris and N. Gouraros, “An Integrated System for Creating a Digital Library from Newspaper Archives”, Digital Resources for the Humanities (DRH2001) Conference, page 37, London, U.K., July 2001. Download

  110. S. L. Mantzaris, B. Gatos and N. Gouraros, "Creating a Digital Library from Newspaper Archives", 2001 Symposium on Document Image Understanding Technology, pp. 285-287, Columbia, Maryland, April 2001.

  111. B. Gatos, N. Papamarkos, I. Andreadis and S. J. Perantonis, “Applying Morphological Transformations on a Block Represented binary Image”, Fourth International Workshop on Document Analysis Systems (DAS2000), pp. 487-495, Rio de Janeiro, Brazil, December 2000. Download

  112. B. Gatos and S. L. Mantzaris, “A novel recursive algorithm for area location using isothetic polygons”, 15th International Conference on Pattern Recognition (ICPR2000), pp. 496-499, Barcelona, Spain, September 2000. Download [cited by 1]

  113. S. L. Mantzaris, B. Gatos, N. Gouraros and P. Tzavelis, “Integrated Search Tools for Newspaper Digital Libraries”, ACM Conference on Research and Development in Information Retrieval (SIGIR 2000), page 389, Athens, Greece, July 2000. Download

  114. B. Gatos, N. Gouraros, S. L. Mantzaris and P. Tzavelis, "A Digital Library from Newspaper Archives", demonstration at Digital Libraries 2000:The Fifth ACM Conference on Digital Libraries (DL'00), San Antonio, Texas, June 2000.

  115. S.L. Mantzaris, B. Gatos, N. Gouraros and S. J. Perantonis, “Linking Article Parts for the Creation of a Newspaper Digital Library”, Content-Based Multimedia Information Access International Conference (RIAO2000), pp. 997-1005, Paris, France, April 2000. Download

  116. B. Gatos, S. L. Mantzaris, K. V. Chandrinos, A. Tsigris and S. J. Perantonis, "Integrated Algorithms for Newspaper Page Decomposition and Article Tracking", Fifth International Conference on Document Analysis and Recognition (ICDAR'99), pp. 559-562, Bangalore, India, September 1999. Download

  117. B. Gatos, N. Gouraros, S. Mantzaris, S. Perantonis, A. Tsigris, P. Tzavelis and N. Vassilas, “A new Method for Segmenting Newspaper Articles”, Second European Conference On Research and Advanced Technology for Digital Libraries (ECDL’98), pp. 695-696, Heraklion, Crete, Greece, September 1998. Download

  118. S. Perantonis, B. Gatos and N. Papamarkos, "Image segmentation and linear feature identification using rectangular block decomposition", Third IEEE Int. Conf. On Electronics, Circuits and Systems, ICECS 96, pp. 183-186, Rodos, Greece, 1996.

  119. N. Papamarkos, J. Tzortzakis and B. Gatos, "Determination of Run-Length smoothing values for document segmentation”, Third IEEE Int. Conf. On Electronics, Circuits and Systems, ICECS 96, pp. 684-687, Rodos, Greece, 1996. Download

  120. A. Benaki, B. Gatos, E. Karamani, D. Karras, S. Perantonis, N. Basilas, H. Harou, S. Varoufakis, "A sensor driven robot arm for playing chess", 5th Hellenic Conference on Informatics – Session: Artificial Intelligence I, pp. 471-480, Athens, Greece, December 1995.

  121. B. Gatos, “Optical Character Recognition Techniques”, 5th Hellenic Conference on Informatics – Session: Ph.D. Consortium I, Athens, Greece, December 1995.

  122. B. Gatos and N. Papamarkos, " On the development of an OCR system based on curvature features", IEEE International Symposium on Industrial Electronics (ISIE'95), pp. 205-210, Athens, July 10-14,1995

  123. B. Gatos, N. Papamarkos and C. Chamzas, "Skew detection of digitized documents using cross-correlation", 5th International Conf. On Advances in Communication & Control - Telecommunications/Signal Processing in the Multimedia Era (COMCON 5), pp. 124-130, Rethymno, Greece, 1995.

  124. A. Benaki, B. Gatos, E. Karamani, D. Karras, S. Perantonis, N. Basilas and N. Gaitanis, "A Robot Hand-Eye Coordination System for 3-D Object Recognition Using Novel Neural Networks Trained with Multiview Moments", European Robotics and Intelligence Systems Conference (EURISCON '94), pp. 1692-1701, Malaga, Spain, 1994.

  125. T. Tambourantzi and B. Gatos, "A Topology-Preserving Harmony Theory Network for Optical Character Recognition", 4th International Conference on Artificial Neural Networks (ICANN '94) from the Springer Verlag LTD. London, p. 977, Sorento, Italy, May 1994.

  126. B. Gatos and N. Papamarkos, " A novel method for character recognition", Proc. of the 4th International Conf. On Advances in Communication & Control - Telecommunications/Signal Processing in the Multimedia Era (COMCON 4), pp. 493-503, Rodos, Greece, June 1993.

  127. B. Gatos, D. Karras and S. Perantonis, "Optical Character Recognition Using Novel Feature Extraction & Neural Network Classification Techniques", Proc. of the Workshop on Neural Network Application and Tools, IEEE Computer Society Press, pp. 65-72, Liverpool, UK, September 1993. Download

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