| 基于相位相关的数字稳像算法研究 |
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| 引用本文： | XING Hui,邢慧,颜景龙,张树江.基于相位相关的数字稳像算法研究[J].光电工程,2007,34(3):37-41. |
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| 作者姓名： | XING Hui 邢慧 颜景龙 张树江 |
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| 作者单位： | 1. 北京理工大学,机电工程学院,北京,100081;中北大学,信息与通信工程学院,山西,太原,030051
2. 北京理工大学,机电工程学院,北京,100081 |
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| 摘 要： | 提出一种基于相位相关的车载视频稳像算法.采用对数极坐标变换技术以及相位相关技术检测图像帧间的旋转、尺度变换以及平移运动参数.为克服局部运动对全局运动参数的影响,采取了由局部运动参数求取全局运动参数的策略.在建立运动参数状态空间模型的基础上,采用Kalman滤波技术进行运动滤波,获取补偿参数.实验结果说明该方法能够比较理想地保留摄像机的主动运动,去除高频抖动.
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| 关 键 词： | 相位相关 全局运动估计 Kalman滤波 数字稳像 |
| 文章编号： | 1003-501X(2007)03-0037-05 |
| 收稿时间： | 2006/7/8 |
| 修稿时间： | 2006-07-08 |
Digital image stabilization algorithm based on phase correlation |
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| XING Hui.Digital image stabilization algorithm based on phase correlation[J].Opto-Electronic Engineering,2007,34(3):37-41. |
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| Authors: | XING Hui |
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| Affiliation: | 1. School of Mechatronic Engineering, Beijing Institute of Technology, Beijing 100081, China; 2. School of Information and Communication Engineering, North University of China, Taiyuan 030051, China |
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| Abstract: | An image stabilization algorithm for mobile video surveillance based on phase correlation was presented.Phase correlation and logarithm polar magnitude spectra representation were utilized to obtain translation,rotation and scale parameters.The global motion vector was decided according to the peak values of sub-image phase correlation surfaces to improve the precision.Correction vector was obtained through Kalman filtering of absolute parameters,and image frames were processed.Experimental results for many video sequences show the good performance to display smooth global movements and to eliminate dithering. |
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| Keywords: | Phase correlation Global motion estimation Kalman filtering Digital image stabilization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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