| 基于直接LDA的人脸识别方法研究 |
| |
| 引用本文： | 闫芳,林小竹,刘家彬.基于直接LDA的人脸识别方法研究[J].北京石油化工学院学报,2011,19(2):39-43. |
| |
| 作者姓名： | 闫芳 林小竹 刘家彬 |
| |
| 作者单位： | 北京化工大学信息科学与技术学院;北京石油化工学院信息工程学院; |
| |
| 摘 要： | 为了研究加权的类间离散度矩阵对人脸识别率的影响以及寻找影响识别率的因素,分别采用零空间投影法和非零空间投影法直接求解Fisher准则线性判别问题。零空间投影保留最具判别能力的样本类内离散度矩阵的零空间,非零空间投影保留样本类间离散度矩阵的非零空间,两种方法都很好地避免了高维小样本问题。通过对Yale人脸库的图像进行试验,结果表明类内离散度矩阵的零空间投影法要优于类间离散度矩阵的非零空间投影法,而加权值修正对识别率的影响并不明显,它的应用是有一定前提条件的。
|
| 关 键 词： | 线性判别分析 样本类间离散度 样本类内离散度 人脸识别 |
A Research of Face Recognition Based on Direct LDA |
| |
| Yan Fang,Lin Xiaozhu,Liu Jiabin.A Research of Face Recognition Based on Direct LDA[J].Journal of Beijing Institute of Petro-Chemical Technology,2011,19(2):39-43. |
| |
| Authors: | Yan Fang Lin Xiaozhu Liu Jiabin |
| |
| Affiliation: | Yan Fang1,2 Lin Xiaozhu2 Liu Jiabin2(1.College of Information Science and Technology,Beijing University of Chemical Technology,Beijing 100029,China,2.School of Information Engineering,Beijing Institute of Petro-chemical Technology,Beijing 102617,China) |
| |
| Abstract: | The zero space projection and non-zero space projection are two kinds of method that can directly solve linear discriminative analysis problem.Both methods were adopted to study the effect of the weighted between-class scatter matrix on the face recognition,in order to explore the factors affecting the recognition rate.The zero space projection method reserves the zero space of within-class scatter matrix which has the most discriminate ability.The non-zero space projection method reserves the non-zero spac... |
| |
| Keywords: | linear discriminant analysis between-class scatter within-class scatter face recognition |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
