Get Document Analysis Systems: Theory and Practice: Third IAPR PDF

By A. Lawrence Spitz, Paul Marks (auth.), Seong-Whan Lee, Yasuaki Nakano (eds.)

ISBN-10: 3540665072

ISBN-13: 9783540665076

Recently, there was an elevated curiosity within the study and improvement of ideas for parts of whole rfile research structures. In acceptance of this pattern, a sequence of workshops on rfile research platforms started out in 1994, below the management of Henry Baird. the 1st workshop, held in Kaiserslautern, Germany, in October, 1994, was once chaired by way of Andreas Dengel and Larry Spitz. the second one workshop on record research structures was once held in Malvern, PA, united states, in October, 1996, chaired via Jonathan J. Hull and Suzanne Liebowitz Taylor. The DAS workshop has been the most prestigious technical conferences, bringing jointly lots of scientists and engineers from worldwide to specific their leading edge principles and record on their newest achievements within the quarter of rfile research platforms. The papers during this particular ebook variation have been conscientiously chosen from the 3rd IAPR Workshop on rfile research structures (DAS’98), held in Nagano, Japan, on four - 6 November 1998. it really is worthy pointing out that the papers have been selected for his or her unique and immense contributions to the workshop subject and this specific publication version. From one of the fifty three papers that have been awarded by way of authors from eleven nations on the DAS’98 after serious stories by way of a minimum of 3 specialists, we rigorously chosen 29 papers for this precise e-book version. lots of the contributions during this version were improved or generally revised to incorporate worthy discussions, feedback, or reviews made through the workshop.

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Additional resources for Document Analysis Systems: Theory and Practice: Third IAPR Workshop, DAS’98 Nagano, Japan, November 4–6, 1998 Selected Papers

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These values are taken from the whiterun and black-run code tables of one dimensional coding. 3 Performance Analysis MG4 is a statistical type coding in which highly probable symbols will get short codes. In this section, we will derive an estimation for the compression ratio that the MG4 yields, and present experimental results. 1 Compression Ratio Estimation Compression ratio for MG4 is given by: CF ≈ T otal N umber of P ixels in Image ¯ v + np L ¯ p + nh L ¯h nv L (2) 36 Shulan Deng et al. where nv , np , nh denote the number of new vertical mode, new pass mode, new ¯v, L ¯ p, L ¯ h are the average lengths of correhorizontal mode, respectively, and L sponding modes in an image.

68, No. 7, pp. 854-867, 1980. 7. I. T. Phillips, S. Chen, R. M. Haralick, “CD-ROM document database standard”, Proceedings of the 2nd ICDAR, pp. 478-483, 1993. 8. A. L. Spitz, “Skew determination in CCITT group 4 compressed document images,” Proceedings of SDAIR, pp. 11-25, 1992. 9. A. L. Spitz, “Using character shape codes for word spotting in document images”, Shape, Structure and Pattern Recognition, pages 382-389. World Scientific, 1995. 10. A. L. Spitz, “Using character shape coding for information retrieval”, Proceedings of the 4th ICDAR, pp.

GM } and the segmentation detected from the system S = Sobj ∪ {snoise } with Sobj = {s1 , . . , sN } where gi resp. sj denote the segments of interest. The first step when to compare two segmentations is to achieve relationships between a single segment from G and a single segment from S. Let | · | denote the number of elements of a set; we define an overlap function G × S → N0 , (g, s) →g |∩ s| which counts the number of pixels common to g ∈ G and s ∈ S. Given two segmentations G and S, the values of this function can be displayed in a two-dimensional table; there exist the marginal conditions |g| = s∈S |g ∩ s|, |s| = g∈G |g ∩ s| and |I| = g∈G s∈S |g ∩ s|.

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Document Analysis Systems: Theory and Practice: Third IAPR Workshop, DAS’98 Nagano, Japan, November 4–6, 1998 Selected Papers by A. Lawrence Spitz, Paul Marks (auth.), Seong-Whan Lee, Yasuaki Nakano (eds.)


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