Method and system for detecting and tracking multi-pose face

Abstract

The present invention relates to a method and a system for detecting and tracking a multi-pose face. The method includes the following steps of :1) decoding an image acquired by a camera, and restoring the decoded image into a frame picture, and performing pre-process of illumination compensation on the frame picture; 2) acquiring a facial picture from the pre-processed frame picture; 3) determining whether a face in the facial picture is a false face or not, if not, predicting a moving track of the face, and tracking the face and judging whether the track is missing or not according to a predicted result, if not, positioning and acquiring a location of a next facial picture in a next frame picture according to the predicted result, and repeating the operations from step 1) to step 3), if yes, selecting five facial pictures with optimal rotation angles and definitions; and discarding the facial picture if the face is a false face. The method and the system provided in the invention can overcome influences of instability of facial poses and changes in ambient light, distinguish the facial poses in a real-time manner and screen out facial pictures with optimal poses.

Description

technical field [0001] The invention relates to a multi-pose human face detection and tracking method and system. Background technique [0002] The multi-pose face detection and tracking problem is a research topic developed in recent years. At present, the face detection algorithm of static pictures is gradually becoming mature. However, due to the dynamic scenes or faces in real-time videos may encounter various Such external environmental disturbances, such as illumination changes, face poses, partial occlusions, etc., limit the application of face detection systems in actual monitoring. [0003] At present, there is no mature face detection and tracking method or system that can be applied to complex monitoring environments. "Method and system for real-time detection and continuous tracking" of the Chinese patent application, which can only solve the real-time detection and tracking of frontal upright faces, and the frontal upright faces can only reach about 25% in actu...

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Problems solved by technology

[0003] At present, there is no mature face detection and tracking method or system that can be applied to complex monitoring environments. The real-time detection and continuous tracking method and system" Chinese patent application, which can only solve the real-time detection and tracking of frontal upright faces, and in actual application conditions, the frontal upright faces can only reach about 25%

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