| 抗区域灰度变化的景像匹配算法研究 |
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| 引用本文： | 桑农,张天序,汪国有,魏洛刚.抗区域灰度变化的景像匹配算法研究[J].华中科技大学学报(自然科学版),1996(2). |
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| 作者姓名： | 桑农 张天序 汪国有 魏洛刚 |
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| 作者单位： | 华中理工大学图像识别与人工智能研究所 |
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| 基金项目： | 国家自然科学基金,国防科工委预研基金 |
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| 摘 要： | 根据Ｐｈｏｎｇ照射模型，研究了视点变化对景像灰度的影响，提出采用灰度校正技术，纠正由于视点变化而带来的同一地区景像在参考图与实时图中表现出的不同灰度特征，获得两者间共同的区域灰度特征，以提高匹配可靠性．给出了与常规匹配算法比较的实验结果，证实其较通常方法具有更强的抗景像区域灰度反转的能力．
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| 关 键 词： | 图像识别，Phong成像模型，区域灰度反转，景像匹配 |
A Study on a Scene Matching Algorithm insensitive to Region Grey Level Reversal |
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| Sang Nong, Zhang Tianxu, Wang Guoyou, Wei Luogang.A Study on a Scene Matching Algorithm insensitive to Region Grey Level Reversal[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1996(2). |
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| Authors: | Sang Nong Zhang Tianxu Wang Guoyou Wei Luogang |
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| Abstract: | The grey level deviation in a scene due to view point shift is studied using Phong' S shading model. A grey level correction technique for scene matching to correct the grey level deviation of the same area in the reference image and the sensed image due to view point shift is proposed,and the common character of the grey level feature is obtained with an improvement on the reliability of matching. The comparative test results in relation to the ordinary matching algorithm are given and it is proved that the algorithm with corrections is more Insensitive to region grey level reversal. |
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| Keywords: | image recognition Phong's shading model region reversal scene matching |
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