步态识别预处理算法的研究

本文对步态识别当中的图像序列预处理算法进行了深入研究,采用视频帧差的方法建立背景模型,弥补了平均值法建立背景模型时需要较多帧数的不足,间接差分能更好地选择阈值进行二值化,对图像进行镜像处理使得不同行走方向的步态轮廓之间具有可比性。本文以MATLAB7.0为平台,以中科院自动化研究所提供的CASIA数据库为样本进行了大量实验,表明提出的算法具有处理效果好,可行性强,速度快等优点。

Analysis of Pre-processing Algorithms in Gait Recognition

The pre-processing algorithms in gait recognition are researched in this paper. And the background model by using the method of Change Detection Mask are set up to meet the shortfall of needing too much frames by using mean method. Indirect Difference method made it easier to choose a threshold while getting the binary image. Mirroring image made it comparable among the images in different direction. The article also made a lot of experiments by the platform of matlab7. 0, using the CASIA database provided by Institute of Automation, Chinese Academy of Sciences. And the new methods has the advantages of better effects, stronger feasibility and quicker speed.