LAMP Seminar
Language and Media Processing Laboratory
Conference Room 4406
A.V. Williams Building
University of Maryland

Tuesday December 7, 1999
1:00 PM

Video text denoising and enhancement using

Huiping Li


In this talk we present a multi-frame based enhancement scheme to improve the OCR of artificial text (movie credit and news caption) and the readability of scene text (car license plate) in digital video. From the video text creation process we model the enhancement of artificial text as a denoising problem and the enhancement of scene text as a deblurring problem. Our enhancement algorithm for artificial text is based on the image registration and fusing, and we propose a projection onto convex sets (POCS) based method to enhance scene text. We will show experimental results and discuss the conditions under which the algorithm performs best.

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