Optical Implementation Of The Hotelling Trace Criterion For Image Classification
Optical Implementation Of The Hotelling Trace Criterion For Image Classification
复制标题
图像分类的霍特林迹标准的光学实现
DOI：
10.1117/12.7973371
复制
发表时间：
1984
影响因子：
1.3
通讯作者：
Sing H. Lee
中科院分区：
文献类型：
--
作者：
Z. Gu;Sing H. Lee
霍特林迹准则（HTC）是有用的特征提取，使多类的统计图像可以分离，最大限度地提高类间差异，同时最小化类内的变化。HTC的光学实现已经成功地利用计算机生成的空间滤波器和编码相位处理器。本文还介绍了一种用小型计算机从大尺寸图象计算HTC判别函数的简化方法。当类内变异可以用低秩的协方差矩阵近似时，这种方法很有用。
The Hotelling trace criterion (HTC) is useful for feature extraction so that multiclasses of statistical images can be separated by maximizing the between-class differences while minimizing the within-class variations. Optical implementation of the HTC has been successful by utilizing computer-generated spatial filters and a coded-phase processor. A simplified method of calculating the HTC discriminant functions from large-dimensional images by a small computer is also described. This method is useful when the within-class variation can be approximated by a covariance matrix of low rank.