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| 基于自适应极坐标变换的景象匹配算法 | |
| 引用本文： | 符艳军,程咏梅,潘泉,李耀军,孙开锋.基于自适应极坐标变换的景象匹配算法[J].西北工业大学学报,2011,29(5):702-708. |
| 作者姓名： | 符艳军 程咏梅 潘泉 李耀军 孙开锋 |
| 作者单位： | 1. 西北工业大学自动化学院,陕西西安710072;空军工程大学电讯工程学院,陕西西安710077 2. 西北工业大学自动化学院,陕西西安,710072 3. 西安精密机械研究所,陕西西安,710075 |
| 摘 要： | 对数极坐标投影变换以其对旋转及尺度的不变性而在景象匹配中广泛应用,但这种方法计算复杂且对图像的遮挡非常敏感。自适应极坐标投影变换,一方面保持了对数极坐标投影变换的旋转及尺度不变性,同时对图像间的局部遮挡具有鲁棒性且计算量相对较少。为此,把自适应极坐标投影变换应用到景象匹配中,提出了一种基于自适应极坐标变换的景象匹配算法。结合景象匹配辅助导航系统的实际给出了进一步的改进措施:根据自适应极坐标投影变换的特点,设计了一种新的相似性度量方法;创建虚拟圆索引模板,实现了在基准图上圆形子图的快速截取;在多分辨率匹配技术的基础上,进一步采用跳跃式搜索,有效缩减了匹配耗时。仿真实验表明,所提算法在实时性及鲁棒性方面优于传统的对数极坐标匹配算法。 |
| 关 键 词： | 对数极坐标变换 自适应极坐标变换 索引模板 象素跳跃式搜索 |
Exploring an Effective Scene Matching Algorithm Using Adaptive Polar Transform(APT) |
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| Fu Yanjun,Cheng Yongmei,Pan Quan,Li Yaojun,Sun Kaifeng.Exploring an Effective Scene Matching Algorithm Using Adaptive Polar Transform(APT)[J].Journal of Northwestern Polytechnical University,2011,29(5):702-708. | |
| Authors: | Fu Yanjun Cheng Yongmei Pan Quan Li Yaojun Sun Kaifeng |
| Affiliation: | 1.Department of Automatic Contro1,Northwestern Polytechnical University,Xi′an 710072,China 2.The Telecommunication Engineering Institute,Air Force Engineering Univercity,Xi′an 710077,China 3.Xi′an Precision Machinery Research Institute,Xi′an 710075,China) |
| Abstract: | Aim.The introduction of the full paper reviews a number of papers in the open literature and then proposes the research mentioned in the title.Starting from Ref.11,sections 1,2 and 3 explain our exploration.Section 1 briefs the APT of Ref.11.Section 2 not only applies APT to scene matching but also deems it necessary to add three technical measures to make scene matching more effective than previously possible:(1) a new similarity measure is designed using a threshold;(2) a fast circular sub-image location ... |
| Keywords: | image processing computer vision algorithms log-polar transform(LPT) adaptive polar transform(APT) index template pixel-jump searching |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |