Lip Location Normalized Training for Visual Speech Recognition

摘要

This paper describes a method to normalize the lip position for improving the performance of a visual- information-based speech recognition system. Basically, there are two types of information useful in speech recognition pro- cesses; the first one is the speech signal itself and the second one is the visual information from the lips in motion. This paper tries to solve some problems caused by using images from the lips in motion such as the effect produced by the variation of the lip location.