| 基于灰度投影和宏块线性搜索的电子稳像 |
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| 引用本文： | 王小鹏,成亮,晏鑫,王耀琦. 基于灰度投影和宏块线性搜索的电子稳像[J]. 兰州交通大学学报, 2009, 28(4): 90-93,101 |
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| 作者姓名： | 王小鹏 成亮 晏鑫 王耀琦 |
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| 作者单位： | 兰州交通大学电子与信息工程学院,甘肃兰州,730070;兰州交通大学电子与信息工程学院,甘肃兰州,730070;兰州交通大学电子与信息工程学院,甘肃兰州,730070;兰州交通大学电子与信息工程学院,甘肃兰州,730070 |
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| 基金项目： | 甘肃省自然科学基金，兰州市科技发展计划项目 |
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| 摘 要： | 为减轻因摄像机震动造成的视频序列失稳,提出了一种基于灰度投影和宏块线性搜索的电子稳像方法.该方法首先利用灰度投影进行粗匹配,估计当前图像相对于参考图像的偏移量;再利用块匹配结合正方形线性搜索进行精确匹配,得到较精确的位置偏移量,进而进行运动补偿实现视频稳定.实验结果表明,该方法能使稳像精度得到提高,同时与全搜索法和菱形搜索法相比,计算复杂度有所减小.
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| 关 键 词： | 电子稳像 灰度投影 块匹配 正方形线性搜索 |
Electronic Image Stabilization Based on Gray Projection and Block Line Searching |
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| WANG Xiao-peng,CHENG Liang,YAN Xin,WANG Yao-qi. Electronic Image Stabilization Based on Gray Projection and Block Line Searching[J]. Journal of Lanzhou Jiaotong University, 2009, 28(4): 90-93,101 |
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| Authors: | WANG Xiao-peng CHENG Liang YAN Xin WANG Yao-qi |
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| Affiliation: | ( School of Elect ronic and Information Engineering, Lanzhou J iaotong University, Lanzhou 730070, China ) |
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| Abstract: | In order to alleviate the video-sequence vibration caused by the jitter of video application, a method of electronic image stabilization based on gray projection and block line-search is proposed. Firstly, the translation between current image and reference image is calculated by the coarse matching based on grayscale projection. Secondly, images are divided into several blocks, for each block, block-matching and square -line searching are used to obtain location moving offset. Finally, the image sequences are compensated to realize video-sequence stabilization. Simulations show that this method can obtain accurate stabilization effect,and the computational complexity is also reduced compared to the full search （FS） and diamond search （DS） algorithm. |
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| Keywords: | electronic image stabilization gray projection block-matching square-line searching |
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