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一种基于时空域流形的视频序列图像拼接算法

An Image Mosaicing Approach for Video Sequences Based on Space-Time Manifolds

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【作者】 邹丽晖陈杰张娟窦丽华

【Author】 ZOU Li-Hui 1,2,CHEN Jie 1,2,ZHANG Juan 1,2,DOU Li-Hua 1,2 1.School of Automation,Beijing Institute of Technology,Beijing 100081,P.R.China 2.Key Laboratory of Complex System Intelligent Control and Decision(Beijing Institute of Technology),Ministry of Education,Beijing,100081,P.R.China

【机构】 北京理工大学自动化学院复杂系统智能控制与决策教育部重点实验室

【摘要】 针对视频序列图像拼接自身具有帧间图像高重叠率高及序列数量多的特性,为更加合理利用视频序列图像帧间重复信息,本文提出一种基于时空域流形的视频序列图像拼接算法,首先对视频序列各帧输入图像进行Gaussian分层迭代计算Lucas-Kanade光流,得到较高精度的相邻帧间运动偏移量,对齐时空域序列图像,同时结合光流计算结果消除前后帧间的亮度差异,然后对整体亮度均匀一致的视频序列图像采用时空域流形拼接技术合成高分辨率大视场图像,实验表明本算法对视频序列图像拼接十分有效,拼接结果良好。

【Abstract】 In order to utilize the repetitive information among the video sequence more reasonably,this paper proposes an image mosaicing approach based on space-time manifolds for the video sequence taking the properties of high-overlapped ratio between neighbor frames and multiple frames into account.Firstly,we iterate Lucas-Kanade optical flow under Gaussian pyramid strategyto compute the motion parameters between neighbor frames with higher accuracyand align the sequence,in the meantime,eliminate the brightness difference among the neighbors combining with the result of motion computation,and then stitch together the whole sequence whose brightness is already uniform into a high resolution image using the space-time manifolds mosaicing technique.It was verified by the experiment that the proposed approach was very effective to video sequences and the mosaicing result was nice.

【基金】 北京市教育委员会共建项目专项资助,项目批准号:(XK100070532)
  • 【会议录名称】 第二十九届中国控制会议论文集
  • 【会议名称】第二十九届中国控制会议
  • 【会议时间】2010-07-29
  • 【会议地点】中国北京
  • 【分类号】TP391.41
  • 【主办单位】中国自动化学会控制理论专业委员会(Technical Committee on Control Theory,Chinese Association of Automation)
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