Stroke-guided Image Synthesis for Skeletal Structure Editing
Chin-Yu Lin1
1 National Taiwan University
2 Academia Sinica
Computer Graphics Forum (Proceedings of Pacific Graphics 2013)
Technique for synthesizing image objects with various skeletal structures (b) with reference to an input image object (a). A user firstly annotates two strokes S1 and S2 to indicate the skeletal structures on the input object that is used to synthesize the new objects, and then draws several strokes that correspond to S1 and S2 in the output domain. Finally, the method synthesizes the objects with respect to these strokes.
abstract
Creating variations of an image object is an important task, which usually requires manipulating the skeletal structure of the object. However, most existing methods (such as image deformation) only allow for stretching the skeletal structure of an object: modifying skeletal topology remains a challenge. This paper presents a technique for synthesizing image objects with different skeletal structures while respecting to an input image object. To apply this technique, a user firstly annotates the skeletal structure of the input object by specifying a number of strokes in the input image, and draws corresponding strokes in an output domain to generate new skeletal structures. Then, a number of the example texture pieces are sampled along the strokes in the input image and pasted along the strokes in the output domain with their orientations. The result is obtained by optimizing the texture sampling and seam computation. The proposed method is successfully used to synthesize challenging skeletal structures, such as skeletal branches, and a wide range of image objects with various skeletal structures, to demonstrate its effectiveness.
technical paper
presentation slide
bibtex

@article{ Luo:2013:SIS,
     author = {Sheng-Jie Luo and Chin-Yu Lin and I-Chao Shen and Bing-Yu Chen},
     journal = {Computer Graphics Forum},
     title = {Stroke-guided Image Synthesis for Skeletal Structure Editing},
     year = {2013},
     volume = {32},
     number = {7},
     pages = {71-78},
     note = {(Pacific Graphics 2013 Conference Proceedings)}
}
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