| 改进的SIFT算法在医学图像检索中的应用研究 |
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| 引用本文： | 张艺雪,黄毅杰. 改进的SIFT算法在医学图像检索中的应用研究[J]. 甘肃联合大学学报(自然科学版), 2014, 0(4): 69-72 |
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| 作者姓名： | 张艺雪 黄毅杰 |
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| 作者单位： | 漳州卫生职业学院信息技术部;漳州职业技术学院计算机工程系; |
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| 摘 要： | 针对SIFT算法提取的关键点不具有结构意义、提取运算复杂,应用于医学图像检索中匹配错误率较高的缺点,提出了一种改进的Harris-SIFT算法,将SIFT算法中特征点的检测方法改为Harris角点检测。提取的关键点更均匀合理且具有结构意义,提取运算更简单。通过实验验证,改进算法减少了误匹配率,提高了检索速度。
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| 关 键 词： | SIFT 医学图像 Harris 检索 |
Application of the Improved SIFT Algorithm in Medical Image Retrieval |
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| Affiliation: | ZHANG Yi-xue , HUANG Yi-jie( 1. Department of Information Technology, Zhangzhou Heahh Vocation College, Zhangzhou 363000, China ; 2. Department of Computer Engineering, Zhangzhou Institute of Technology, Zhangzhou 363000,China) |
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| Abstract: | Aimed at SIFT algorithm to extract the key point does not have structural significant,and to extract the computational complexity,using in medical image retrieval had shortcomings of higher error rate matching,an improved Harris-SIFT algorithm was proposed,the detection algorithm SIFT feature points changed for Harris corner detector.Extracting key point had more uniform structure,had a reasonable sense,and the extraction operation was easier.Experiments show that the improved algorithm reduces the false match rate,to improve the retrieval speed. |
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| Keywords: | SIFT medical images Harris retrieval |
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