一种阴影和高光不敏感的PHOG算子  

A shadow and highlight insensitive PHOG detector

作　　者：黄世国[1] 周明全[2] 耿国华[3] 

机构地区：[1]福建农林大学计算机与信息学院,福建福州350002 [2]北京师范大学信息科学与技术学院,北京100875 [3]西北大学可视化技术研究所,陕西西安710127

出　　处：《西北大学学报（自然科学版）》2013年第6期890-892,共3页Journal of Northwest University（Natural Science Edition）

基　　金：国家自然科学基金重点资助项目(60736008);国家863基金资助项目(2008AA01Z301);福建省自然科学基金资助项目(2013J01071)

摘　　要：为了克服传统PHOG算子未考虑阴影和高光对图像分类和识别的影响,通过引入双向反射模型,计算阴影和高光不变性的特征算子,并将其用于改进PHOG算子,给出阴影和高光不敏感的PHOG算子。实验结果表明对含高光和阴影的图像数据集,新算子能够区分阴影和高光的结构,有效地提高了识别准确率,其性能优于PHOG算子。To overcome the disadvantages of traditional PHOG detector without considering the influence of shadows and highlights in image classification and recognition, a dichromatic reflection model was introduced and the detec- tor insensitive to shadows and highlights was calculated to impi＇ove PHOG detector and then PHOG detector insensi- tive to shadows and highlights was proposed. The experimental results showed that for the images with shadows and highlights, the proposed detector could differentiate the structure of shadows and highlights, and the recognition rate is increased. Its performance is better than that of PHOG detector.

关 键 词：阴影和高光敏感 PHOG 图像分类 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]