Dr. Liana M. Lorigo Profile

Dr. Liana M. Lorigo

Assistant Professor

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Proceedings Article | 29 January 2007 Paper

Transcript mapping for handwritten Arabic documents

Liana Lorigo, Venu Govindaraju

Proceedings Volume 6500, 65000W (2007) https://doi.org/10.1117/12.696140

KEYWORDS: Databases, Image segmentation, Automatic alignment, Image processing, Distance measurement, Computing systems, Binary data, Venus, Biometrics, Sensors

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Handwriting recognition research requires large databases of word images each of which is labeled with the word it contains. Full images scanned in, however, usually contain sentences or paragraphs of writing. The creation of labeled databases of images of isolated words is usually tedious, requiring a person to drag a rectangle around each word in the full image and type in the label. Transcript mapping is the automatic alignment of words in a text file with word locations in the full image. It can ease the creation of databases for research. We propose the first transcript mapping method for handwritten Arabic documents. Our approach is based on Dynamic Time Warping (DTW) and offers two primary algorithmic contributions. First is an extension to DTW that uses true distances when mapping multiple entries from one series to a single entry in the second series. Second is a method to concurrently map elements of a partially aligned third series within the main alignment. Preliminary results are provided.

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