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Front. Inform. Technol. Electron. Eng.  2011, Vol. 12 Issue (1): 36-43    DOI: 10.1631/jzus.C1000123
    
Cartoon capture by key-frame based contour tracking
Chun-luan Zhou, Jun Xiao*
Institute of Artificial Intelligence, School of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China
Cartoon capture by key-frame based contour tracking
Chun-luan Zhou, Jun Xiao*
Institute of Artificial Intelligence, School of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China
 全文: PDF(597 KB)  
摘要： Traditional cartoons have been widely used in entertainment, education, and advertisement. Thus, a large amount of cartoon data is available. In this paper, we propose a new technique for capturing the motion of a character in an existing cartoon sequence. This technique tracks the contours of the cartoon character in the sequence, and key frames are used to guide the tracking. We model contour tracking as a space-time optimization problem in which an energy function including both temporal and spatial constraints is defined. First, the user labels the contours of the character on the key frames. Then, the contours on the intermediate frames are tracked by minimizing the energy function. The user may need to interactively adjust the tracking result and restart the optimization process to refine the result. Finally, an edge snapping algorithm is applied to make the tracking result more precise. Experiments show that our technique works effectively.
关键词： Cartoon reuse;  Cartoon capture;  Key frame;  Contour tracking    
Abstract: Traditional cartoons have been widely used in entertainment, education, and advertisement. Thus, a large amount of cartoon data is available. In this paper, we propose a new technique for capturing the motion of a character in an existing cartoon sequence. This technique tracks the contours of the cartoon character in the sequence, and key frames are used to guide the tracking. We model contour tracking as a space-time optimization problem in which an energy function including both temporal and spatial constraints is defined. First, the user labels the contours of the character on the key frames. Then, the contours on the intermediate frames are tracked by minimizing the energy function. The user may need to interactively adjust the tracking result and restart the optimization process to refine the result. Finally, an edge snapping algorithm is applied to make the tracking result more precise. Experiments show that our technique works effectively.
Key words: Cartoon reuse    Cartoon capture    Key frame    Contour tracking
收稿日期: 2010-04-30 出版日期: 2010-01-10
CLC:  TP391.72  
基金资助: Project supported by the National Natural Science Foundation of China (No. 60903134), the National Key Technology R & D Program
of China (No. 2007BAH11B00), and the Fundamental Research Funds for the Central Universities of China (No. 2009QNA5021)
通讯作者: Jun Xiao     E-mail: chunluanzhou@163.com, junx@cs.zju.edu.cn
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Chun-luan Zhou, Jun Xiao. Cartoon capture by key-frame based contour tracking. Front. Inform. Technol. Electron. Eng., 2011, 12(1): 36-43.

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http://www.zjujournals.com/xueshu/fitee/CN/10.1631/jzus.C1000123    或    http://www.zjujournals.com/xueshu/fitee/CN/Y2011/V12/I1/36

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