Facial Expression Recognition Based on Improved LBP

LBP(Local Binary Pattern) is an effective texture description operator which can well extract facial expression feature information.This paper improves the original LBP operator in allusion to the problem that it only considers gray difference between central pixel and neighborhood pixel,puts forward multiple local binary patterns MLBP and applied the improved MLBP operator in facial expression recognition.Through the experimental comparison in JAFFE face database before and after improvement,this method achieves a good effect in terms of the recognition rate.