用Matlab实现的后向投影算法，一个经典的投影算法，常用语CT断层成像中-After using Matlab implementation of the algorithm to the projection, the projection of a classical algorithm, commonly used terms in CT tomography

在人脸识别过程中，进行非线性特征提取，基于流形的特征提取，正交局部保持投影。-In face recognition process, non-linear feature extraction, based on the feature extraction, orthogonal submanifolds with local keep projection.

采用matlab软件，并用积分投影定位人脸眼睛的红膜中心-Based on matlab software, and integral projection positioning of the red eyes face film center

MATLAB编写的人脸特征提取代码，叫局部保持投影特征提取算法，可以作为人脸识别系统一部分(MATLAB prepared by the facial feature extraction code, called the local projection feature extraction algorithm can be used as part of the face recognition system,feature exaction.)