Abstract: The present disclosure relates to a video monitoring method, a video monitoring system and a computer program product. The video monitoring method comprises: obtaining video data collected by a video data collecting apparatus; and based on pre-set scene information and the video data, performing determination and statistics of monitored objects in a scene to be monitored corresponding to the scene information.

Abstract: The present disclosure relates to a video monitoring method and a video monitoring system based on a depth video. The video monitoring method comprises: obtaining video data collected by a video collecting module; determining an object as a monitored target based on pre-set scene information and the video data; extracting characteristic information of the object; and determining predictive information of the object based on the characteristic information, wherein the video data comprises video data including the depth information.

Abstract: Provided are a liveness authentication method and apparatus, which perform liveness authentication by determining whether incident light is linear polarized light. The liveness authentication method comprises: making incident light incident to a set of polarizing filters not overlapped with each other in a light transmission direction; detecting, for each of the set of polarizing filters, an intensity of light transmitting through the polarizing filter, so as to obtain a set of light intensities corresponding to respective polarizing filters of the set of polarizing filters respectively; and determining that the liveness authentication is failed in the case that the set of light intensities satisfy a predetermined condition. In the case that the incident light is light emitted from a liquid crystal display screen, the incident light is the linear polarized light, and thus the liveness authentication is failed.