MICRO-EXPRESSION DESCRIPTION METHOD AND DEVICE, COMPUTER DEVICE AND READABLE STORAGE MEDIUM

摘要

Provided in the present application are a micro-expression description method and device, a computer device and a non-volatile readable storage medium. The micro-expression description method comprises: scanning a facial image to detect a first feature point of the facial image, wherein the first feature point is a non-collinear feature point that is not affected by a micro-expression; using a facial image composed of the first feature points as a first frame, and aligning a detected subsequent frame with the first frame; segmenting the facial image according to the first feature point to form a group of sub-blocks which are not overlapped with each other; extracting a histogram feature vector corresponding to each of the sub-blocks and representing the facial image; and cascading the histogram feature vectors into a high-dimensional feature vector, and using the high-dimensional feature vector as a description form of the micro-expression. The micro-expression description method provided by the present application can adapt to the spatio-temporal characteristics and computational complexity of the micro-expression, thereby realizing operational experience optimization of a mobile computer device.