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Flexible, Space-Time Segmenter for Handwritten Words

IP.com Disclosure Number: IPCOM000039064D
Original Publication Date: 1987-Apr-01
Included in the Prior Art Database: 2005-Feb-01

Publishing Venue

IBM

Related People

Authors:
Fox, AS Kim, J Tappert, CC [+details]

Abstract

The present invention relates to a method for performing segmentation of handwritten words based on spatial and temporal information gathered while a writer scribes words onto an electronic tablet. Spatially, a sequence of points are produced from pen down to pen up. The sequence of points (x and y coordinates) from pen down to pen up is called a stroke. Xmin corresponds to the x coordinate of the leftmost point of the stroke. Xmax corresponds to the rightmost point. The use of temporal information is based on several considerations. First, a writer tends to pause between words. In this regard, the writer's hand is normally moved to a new position before a next word is written, thus introducing a delay between words. Second, the writer typically completes a word by adding "retrograde" strokes (e.g.