摘要
针对随机Hough变换(RHT)中随机采样造成的大量无效采样和无效积累问题,提出了基于连续曲线段 检测的RHT(CRHT)算法并应用于虹膜定位中,它利用了边缘图像的连续特性来减少无效采样的数量。实验结 果证明,改进的CRHT变换提高了虹膜定位速度。
To solve the problems of a large amount of invalid samplings and useless accumulations in the randomized hough trans-form (RHT), the continuous curves detection's randomized hough transform is presented to realize iris location. The method makes good use of continuous curve feature to reduce invalid sampling. Experiment show that the improved CRHT algorithms has gained higher speed.
出处
《计算机工程与设计》
CSCD
2003年第10期37-39,共3页
Computer Engineering and Design
基金
燕山大学2002年科技发展基金资助项目
