| 基于SIFT和小波变换的图像拼接算法 |
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| 引用本文： | 王宇,王涌天,刘越.基于SIFT和小波变换的图像拼接算法[J].北京理工大学学报,2009,29(5):423-426. |
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| 作者姓名： | 王宇 王涌天 刘越 |
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| 作者单位： | 北京理工大学,信息科学技术学院光电工程系,北京,100081;长春工程学院,机电学院,吉林,长春,130012;北京理工大学,信息科学技术学院光电工程系,北京,100081 |
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| 基金项目： | 国家自然科学基金与微软亚洲研究院联合资助项目，国家高技术研究发展计划(863计划) |
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| 摘 要： | 提出了一种基于尺度不变特征变换(SIFT)和小波变换的图像拼接算法,以提高室外复杂场景的图像拼接质量.利用SIFT算法提取基准图像(待匹配图像)和后续图像(与基准图像进行匹配的图像)的特征点,确定特征点的位置、尺度与方向;利用128维向量对特征点进行描述;利用最近邻法完成两幅图像特征点的匹配,确定重合区域;利用基于小波变换的多分辨率方法完成对图像的拼接.实验结果表明,该方法对亮度差异较大的图像拼接效果良好,适宜于室外复杂环境的图像拼接.
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| 关 键 词： | 尺度不变特征变换 小波变换 图像拼接 特征点匹配 图像融合 |
| 收稿时间： | 2008/5/29 0:00:00 |
Image Stitch Algorithm Based on SIFT and Wavelet Transform |
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| WANG Yu,WANG Yong-tian and LIU Yue.Image Stitch Algorithm Based on SIFT and Wavelet Transform[J].Journal of Beijing Institute of Technology(Natural Science Edition),2009,29(5):423-426. |
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| Authors: | WANG Yu WANG Yong-tian and LIU Yue |
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| Institution: | 1.Department of Optical Engineering;School of Information Science and Technology;Beijing Institute of Technology;Beijing 100081;China;2.School of Mechatronics Engineering;Changchun Institute of Technology;Changchun;Jilin 130012;China |
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| Abstract: | An algorithm of image stitch based on scale invariance feature transform(SIFT) and wavelet transform is proposed to improve the stitch effect of significantly different luminance images.Features are first detected between two images using SIFT algorithm.After identified locations and scales,features are described by a 128-dimensional feature vector.Feature is matched based on the nearest neighbor method in order to identify overlap regions.Images are blended by wavelet transform.Experimental results showed ... |
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| Keywords: | scale invariance feature transform(SIFT) wavelet transform image stitch feature match image blending |
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