Morlet Wavelet Based Human Head and Face Boundary Extraction

Abstract

This paper presents a novel approach to extract human head boundary in plain background image using 2D Morlet continuous wavelet transform. Continuous wavelet transform and discrete wavelet transform have their specific properties so that their specific field of applications. In this paper we utilize the rich edge information provided by the continuous wavelet transform in various directions to extract the head boundary, and then fuse those information to get the final result. An algorithm for face boundary extraction is also described in this paper. Effectiveness of the proposed method is shown by our tests with Yale Face Database.