关键词: 手背静脉识别, 特征提取和匹配, 曲率波相位特征编码, 局部异或算子, 卡方距离

Abstract: Palm-dorsal vein recognition using Uniform Discrete Curvelet Transform （UDCT） was proposed in this paper. With the palm-dorsal Region Of Interest (ROI) extraction and image preprocessing, UDCT of the curvelet Transform was used on ROI. Then, the curvelet coefficients phase variance was encoded. Finally, the Chi-square distance of histogram of the coding was used for vein recognition. The experimental results show that this proposed method can identify palm-dorsal vein images with high robustness and high speed even with poor-quality images.

Key words: palm-dorsal vein recognition, feature extraction and verification, curvelet phase encoding, Local XOR Pattern (LXP), Chi-square distance