Abstract:

In order to improve the accuracy and speed of face detection,the article brings about a new way of face detection which combines skin color and improved Adaboost arithmetic.First,a Gaussian skin model is set up to handle the pending images under the YCbCr Color Space so as to obtain the Color likelihood images,and the color area is divided by adaptive threshold method to obtain the candidate face area.Then the article improves the Adaboost arithmetic by Harr rectangle feature expanding and sample weights update.This method solves the problems of fallout ratio and false dismissal probability of face detection in complicated background images,thus improving the detection efficiency.

Key words: face detection;color space;complexion model;Adaboost