Institute;
of;
Image;
Processing;
and;
Pattern;
Recognition,;
Shandong;
University,;
Jinan;
250100,;
China;
Institute;
of;
Information;
Science,;
Beijing;
Jiaotong;
University,;
Beijing;
100044,;
China;
基于模型; 空间点; 步态; 特征描述; 转换因子; 二维图像; 图像捕获; 射影几何;