2007-IUPR-29Nov_1045.pdf

109 114 1200dpi 121 142 1606 161 1616 182 191 1982 1988 1989 1990 1992 1993 1995 1997 1999 2001 2002 2004 2005 2006 2007 245 252 255 258 288 3.1 3.2 300 300dpi 4783834 504 507 517 521 5296 5581635 600dpi 647 6490376 656 6th 7000 779 799 820 825 Abstract Algorithms Although Analysis Anderson Another Arias Assuming Atlantic Average Baird Balen Because Binary Bit Bitmap Bloomberg Boomgaard Both Boxplots Breuel Buckley Bunke CVGIP Casey Chanda Cheriet Chhabra City Coding Computing Conference Connected Consider Conversion DFKI Das Data Development Discussion Document Dougherty Droogenbroeck Efficient Erosion Essentially Experiment Experiments Fifth Figure Finally First For Fortune Furthermore Germany Gil Gil-Werman Gorian Graphical Graphics Guyon Handbook Haralick Herk However Hull IBM ICDAR IEEE ISMM Image Imaging Implementation Improvements Intelligence International Introduction Issue J.-Y Jersey Jones Journal Kaiserslautern Keysers Keywords Kimmel LAG LNCS Length Leptonica Letters Liang Like Machine MarcelDekker Mathematical Method Methods Michell Misra Models Moed Morphological Morphology Najman New Note OCR OCRopus One-dimensional Operations Optimal Other Our Patent Pattern Performance Phillips Piper PostScript Practical Proc Proceedings Processing RAST REFERENCES Ranges Real-world Recognition Related Relative Representations Research Retrieval Run Run-Length Run-length SPIE Scaling Scientific Second Shown Singapore Skew Software Some Source Special Springer Standard Suen Symposium System Tang Tenth That The There Therefore These They This Thomas Times Trans Transpose Transposition U.S UW3 University Using Vincent Vision Wahl Wang Werman What Within-Line Wong Workshop World Years York Zhu access according account accumulate achieve actual addition addressing adjacency adjacent adjaceny advantage advantages ai0 aij ajacency algorithm algorithmic algorithms allowing alternative analogous analogously analysis anchors angles append application applications applied approach approaches approximately arbitrary arc arguments array arrays article associate associated assume asymmetricaly asymmetry author authors automatically available average axis based basic begin behave behavior benchmarks between-line binarized binary bit bit-blit bit-identical bitblit bitblit-based bitimages bitmap bitmap-based bitmap-to-runlength-to-bitmap bitmapped bits black blank blit blit-based blocks bold boolean boundary bounding box boxes brushfire-style business cadastral canonical carried carry case chain character characteristics characters choosing circles class cleaning clear close1d closed closer closing closings code coding coherence coincide color combine combined combining common compact comparatively compare compared compares comparing comparisons compatibility competitive compiled complement complementation complex complexity complicated component components compressed compression computation computational compute computed computes computing conditions connected consider considers consists constant construct containing contains continue convention conventions conversion conversions convert converted converting convex coordinates correction correspond corresponding costly costs covers create creating cross-over current currently curve curves dashed data database dealing decode-recode decomposition decompress decompressed decreases def default defined degraded deletes deleting deletion demonstrate demonstrated demonstrates den described describes detailed detection determined determining developed different differently differs dilate1d dilate2d dilation dilations dimensions direction directly display document documents does dpi duplicating e.g easier easiest edges editor editors effectively efficiency efficient efficiently element elements eliminated emphasized encoded encoding end end-u enhancing entire entries erode1d erode2d erosion erosion3 erosions essentially estimate estimates estimation evaluated evaluates evaluating example existing exp1 exp2 experiment experiments explored expresed express extended extension extra extraction fast faster fastest feasible figure figures files filtered filtered.append filters finally finding finish finished fixed floor fly focus follows form format formats forms fourth frequently functions furhter future gain gaps general generalpurpose generic gives good graph gray grayscale greater green grids grows hardware high highly history holding horizontal http idea iff illustrate illustrated illustrates image image.lines image1 images imaging implement implementation implementations implemented implementing implerun important improvements improving in-memory include including incorporating incremented independently individual individually information initialized inner input insights instead integer intensive inter-line inter-word intermediate internally interval intervals involving issue iterate iterating iupr.net iupr.org joining journal journals keeping kernels kinds label labeling labels large large-scale larger layout leaves left length length-like lengths let letter level libraries library lighter like likely line line.runs linear lines list literature little local location logarithmic long look looked looks loop lowest maintain maintains make making map mask masked masks matching mathematical mature max maximal maximum maxint mean means measured measurements median memory mented merge merges method methods min minimum modification modify morphologial morphological morphology morphology-based multiple names necessary need neighboring new newrun nil nodes noise notation note noted noteworthy noticed number obtain ocropus.org octagonal one-dimensional onedimensional oomputed open open1d open2d opening openings operating operation operations operators opposite optimized order outperforms output output.lines overall overhead overlap overlapping packed page pages paper partially particular particularly per-pixel perform performance performing performs perpendicular pipeline pixErodeBrickDwa pixErodeCompBrick pixErodeMorphDwa pixel pixels place point pointwise possible potential practice presented previously primarily primary procedures process processed processing production project proposed pseudo pseudo-code publication published quadratically quality question quickly randomly range raster real-world recognition rectangles rectangular relate related relationships relative rely remain remaining remains removal renumber replace replacing represent representation representations representative represented representing represents reproduced required research resolution result resulting results retaining ri0 right rij rise rle rotating rotation rotations routines run run-length run.end run.start runlength running runs runtime say scale scaling scan scanned scans scribed second seen segmentation selected selective separability separable separate sequence set sets settings several-fold shape shape-directed shares shifting shown shows shrink similar simple simplify simply size sized sizes skeletonization skew skewing skews small smaller smear sole solid somewhat source space-saving spacing spacings speaking special specific speed speeds speedups square start stated statement statistics step steps storage stored straight-forward strictly stroke structure structuring substantially successive sweeping switching synthetic systems takes taking tasks technique techniques terms text time times tmb total transform transforms translated transparently transpose transposed transposing transposition treating treats true twice two-fold type understand understanding union-find unless unpacked unpacking untouched updating usable use used useful uses using usual usually value values van various verified vertical viewed volume walk want way ways well-documented white widely width widths window within-line word words work write written www.leptonica.com