关键词: 虹膜定位, 级联, 卷积神经网络, 关键点检测

Abstract:

How to achieve rapid iris location with high robustness and accuracy in an unrestricted practical application environment is a very worthwhile research. In order to eliminate the interference information quickly and locate the iris region accurately, this paper proposes a regional and key points regression multi-task iris rapid localization method based on convolutional neural network. Using rectangle bounding box to encompass iris area and 5 key points to locate iris area feature points. Experiments show that the method reduces the location time of the inner and outer boundaries of the iris in the image acquired in an unrestricted environment and improves the accuracy of location. It lays a good foundation for the precise segmentation of the iris in the next step.

Key words: iris location, cascade, convolutional neural network, key points detection