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Front. Inform. Technol. Electron. Eng.  2013, Vol. 14 Issue (7): 530-541    DOI: 10.1631/jzus.CIDE1306
    
Portrait drawing from corresponding range and intensity images
Lu Wang, Li-ming Lou, Cheng-lei Yang, Yue-zhu Huang, Xiang-xu Meng
Department of Computer Science and Technology, Shandong University, Jinan 250101, China; Department of Public Security of Fujian Province, Fuzhou 350003, China
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Abstract  We propose a real-time rendering system for automatically creating a caricature drawing, i.e., an exaggerated portrait, of a human face, based on simultaneous use of a range image (or 3D mesh) and a registered photograph of the same face. Combining these information sources provides complementary information. Significant geometric lines such as occluding contours and suggestive contours are extracted from the range data, while textured areas corresponding to shading features are extracted from the photograph. These are combined, and then distorted to produce the final caricature. The final output may be produced using a choice of non-photorealistic rendering styles. Our system method works well for low resolution range images; for these it is fast enough to allow the viewpoint to be chosen in real time. The final output combines significant lines, textured areas, and optional shading, giving a pleasing result which preserves not only the shape cues of the geometric description, but also other essential visual characteristics of the facial image that cannot be deduced from geometry alone.

Key wordsPortrait drawing      Line drawing      Geometric lines      Textured lines      Caricature      Exaggeration     
Received: 29 December 2012      Published: 05 July 2013
CLC:  TP391.9  
Cite this article:

Lu Wang, Li-ming Lou, Cheng-lei Yang, Yue-zhu Huang, Xiang-xu Meng. Portrait drawing from corresponding range and intensity images. Front. Inform. Technol. Electron. Eng., 2013, 14(7): 530-541.

URL:

http://www.zjujournals.com/xueshu/fitee/10.1631/jzus.CIDE1306     OR     http://www.zjujournals.com/xueshu/fitee/Y2013/V14/I7/530


Portrait drawing from corresponding range and intensity images

We propose a real-time rendering system for automatically creating a caricature drawing, i.e., an exaggerated portrait, of a human face, based on simultaneous use of a range image (or 3D mesh) and a registered photograph of the same face. Combining these information sources provides complementary information. Significant geometric lines such as occluding contours and suggestive contours are extracted from the range data, while textured areas corresponding to shading features are extracted from the photograph. These are combined, and then distorted to produce the final caricature. The final output may be produced using a choice of non-photorealistic rendering styles. Our system method works well for low resolution range images; for these it is fast enough to allow the viewpoint to be chosen in real time. The final output combines significant lines, textured areas, and optional shading, giving a pleasing result which preserves not only the shape cues of the geometric description, but also other essential visual characteristics of the facial image that cannot be deduced from geometry alone.

关键词: Portrait drawing,  Line drawing,  Geometric lines,  Textured lines,  Caricature,  Exaggeration 
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