Warping-Based Approach to Offline Handwriting Recognition

• Main Author: Kennard, Douglas J.
• Format: Others
• Published: BYU ScholarsArchive 2013
• Subjects: Handwriting Recognition; Word Warping; Word Morphing; Signature Verification; Forgery Detection; Computer Sciences
• Online Access: https://scholarsarchive.byu.edu/etd/3991; https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4990&context=etd

An enormous amount of the historical record is currently trapped in non-indexed handwritten format. Even after being scanned into images, only a minute fraction of the existing records can be manually transcribed / indexed with reasonable amounts of time and cost. Although progress continues to be made with automatic handwriting recognition (HR), it is not yet good enough to replace manual transcription or indexing. Much of the recent HR work has focused on incremental improvements to methods based on Hidden Markov Models (HMMs) and other similar probabilistic approaches. In this dissertation we present a fundamentally new approach to HR based on 2-D geometric warping of word images. The results of our experimentation indicate that our approach is significantly more accurate than an existing whole-word approach used for word-spotting, and may also be better than HMM-based HR approaches. Since it is a completely new method, we also believe there is potential for improvement and future work that builds on this approach. In addition, we demonstrate that the approach can be used effectively in the related application domain of signature verification and forgery detection.