LIVING BODY DETECTION METHOD AND APPARATUS, AND TRAINING METHOD AND APPARATUS FOR LIVING BODY DETECTION SYSTEM

Disclosed in the present application are a liveness detection method and apparatus, a training method and apparatus for a liveness detection system, and an electronic device and a storage medium. The liveness detection method comprises: acquiring two target images, which are obtained by means of a first sensor and a second sensor respectively performing collection on the same face to be recognized; extracting target depth information from the two target images by using a deep generative network; and performing detection on the target depth information by using a liveness detection model, so as to obtain a liveness detection result of said face. The liveness detection model is obtained by means of training using depth information of sample data, the sample data comprises first sample images, which are collected by the first sensor under at least two types of illumination, and second sample images, which are collected by the second sensor under the at least two types of illumination, and each of the first sample images and each of the second sample images comprise spoofing faces of different materials. Target depth information is extracted from two images by means of a deep generative network, and liveness detection is performed on the target depth information by using a liveness detection model, so as to recognize spoofing faces of different materials under different types of illumination, such that the accuracy of recognition is higher.