关键词: 特征定位, 直线拟合, 方向跟踪, 特征矢量, 手形识别

Abstract: The precision of hand shape identification is influenced by the accuracy of features location. Location method of feature point to carry out recognition based on relative finger length and width was presented. In this paper, first the fingertip was located based on linear fitting; then finger root was located by direction tracking; last the root points were determined. Experiments were carried out on HKUST, using the feature vector matching algorithm. Identification rate of 84.35%, the identification rate of actual measurement can reach 84.62%, and the effect of the proposed method is close to the manual measurement. The experimental results verify the validity of the proposed approach in personal authentication.

Key words: feature location, linear fitting, direction tracking, characteristic vector, hand shape recognition