微表情识别技术分析

摘要

The present research situation of micro-expression at home and abroad is analyzed, and the micro-expression acquisition method based on 3D gradient projection is studied.Micro-expression automatic recognition method includes: 3D gradient histogram recognition, regional segmentation and optical flow identification, amplification micro-expression recognition method.The micro-expression research is discussed from micro-expression coding system and psychoanalysis.The transformation of the micro-expression face database from the purpose-induced to the natural-induced is analyzed, the problems that micro-expression needs to be solved are pointed out: the establishment of realistic and effective micro-expression database;shorten the micro-expression capture time;the establishment of automatic identification system;the establishment of micro-emotional model, Widen the application of micro-expression, that is, from the investigation, interrogation and other national security field extended to the medical, political psychology, sales, recruitment and other fields.%分析了微表情国内外研究现状,研究了基于3D梯度投影微表情捕获方法,微表情自动识别方法:3D梯度直方图识别、区域分割与光流法微表情识别,放大微表情识别法.从微表情编码系统和心理分析两个方面对微表情研究进行展望,分析了微表情人脸数据库从目的性诱导到自然诱导的转变,指出了微表情需要解决的问题:建立逼真有效的微表情样本数据库,缩短微表情捕获的时间,建立自动识别系统,建立微表情心理模型,拓宽拓宽微表情的应用领域,即从侦查、审讯等国家安全领域扩展到医学、政治心理学、销售、人才招聘等领域.