| 基于改进SIFT算法的局域盲人图像导航方法研究 |
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| 引用本文： | 王晓丽,王丽荣. 基于改进SIFT算法的局域盲人图像导航方法研究[J]. 长春大学学报, 2010, 0(10): 10-12,19 |
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| 作者姓名： | 王晓丽 王丽荣 |
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| 作者单位： | [1]长春大学电子信息工程学院,吉林长春130022 [2]长春理工大学电子信息工程学院,吉林长春130022 |
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| 摘 要： | 针对现行导航系统无法在小范围内导航的缺点,提出了一种基于景象匹配的适合于残障人士在局域内行走的图像导航系统。预先对具体的特定区域进行图像采集、处理,建立基准图像库,然后对具体行走中所采集的实时图像进行预处理,得到实时图像库。并采用基于SIFT特征的快速景象匹配算法对实时图与基准图进行匹配。最后对不同光照、不同拍摄角度的旋转变化、缩放变化获得的图像进行特征点匹配。实验结果表明,算法的性能可以满足景象匹配导航系统高性能匹配的要求。
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| 关 键 词： | 图像导航 景象匹配 SIFT匹配算法 RANSAC算法 |
A study on methods of local navigation for the blind based on advanced SIFT algorithm |
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| WANG Xiao-li,WANG Li-rong. A study on methods of local navigation for the blind based on advanced SIFT algorithm[J]. Journal of Changchun University, 2010, 0(10): 10-12,19 |
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| Authors: | WANG Xiao-li WANG Li-rong |
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| Affiliation: | 1.College of Electronic Information Engineering,Changchun University,Changchun 130022,China;2.College of Electronics and Information Engineering,Changchun University of Science and Technology,Changchun 130022,China) |
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| Abstract: | Because the current navigation system can not navigate in small areas,this paper puts forward a scene-based matching image navigation system which is suitable for disabled people to walk in small areas.Carry out specific image acquisition,processing and the establishment of baseline image library in appointed areas and preprocess specific real-time image in walking to obtain real-time image library.And then adopt fast image matching algorithm based on SIFT features to match real-time graph and the reference image.Finally,feature points matching is achieved through different lighting,rotating changes of different angles and condensing-enlarging change.The results of the experiment show that the performance of the algorithm can meet the image matching navigation system＇s requirements of high-performance matching. |
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| Keywords: | image navigation image matching SIFT matching algorithm RANSAC algorithm |
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