METHOD OF LIP REGION FOR LIP-READING IN A MOBILE DEVICE

摘要

PURPOSE: A lip area determining method for lip reading in a mobile device is provided to horizontally cluster the lips of speakers and separate the lips from shadows under the lips by a threshold Y axis coordinate value. CONSTITUTION: First candidate objects are generated from lip images using clustering(S2000). Second candidate objects are extracted using a gray average value of each first candidate object. Third candidate objects are eliminated from the second candidate objects using a reliability function(S3000). The clustering is performed again by using a threshold Y axis coordinate value. Fourth candidate objects are extracted(S4000). A fifth candidate object is determined from the fourth candidate objects using the reliability function(S5000).