Document registration using projective geometry.

Safari, R; Narasimhamurthi, N; Shridhar, M; Ahmadi, M · IEEE Trans Image Process · 1997

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Abstract

A technique for extracting filled-in information in form documents is presented. The transformation that is required to convert a filled-in form to match the master (blank form) is derived using results from projective geometry. Experimental studies with several forms indicate the proposed technique to be accurate and robust.