Automatic and topology-preserving gradient mesh generation for image vectorization
Automatic and topology-preserving gradient mesh generation for image vectorization
复制标题
用于图像矢量化的自动且保留拓扑的梯度网格生成
DOI:
10.1145/1576246.1531391
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发表时间:
2009-07
影响因子:
6.2
通讯作者:
Lai, Yu-Kun
中科院分区:
文献类型:
--
作者:
Martin, Ralph R.;Hu, Shi-Min;Lai, Yu-Kun
Gradient mesh vector graphics representation, used in commercial software, is a regular grid with specified position and color, and their gradients, at each grid point. Gradient meshes can compactly represent smoothly changing data, and are typically used for single objects. This paper advances the state of the art for gradient meshes in several significant ways. Firstly, we introduce a topology-preserving gradient mesh representation which allows an arbitrary number of holes. This is important, as objects in images often have holes, either due to occlusion, or their 3D structure. Secondly, our algorithm uses the concept of image manifolds, adapting surface parameterization and fitting techniques to generate the gradient mesh in a fully automatic manner. Existing gradient-mesh algorithms require manual interaction to guide grid construction, and to cut objects with holes into disk-like regions. Our new algorithm is empirically at least 10 times faster than previous approaches. Furthermore, image segmentation can be used with our new algorithm to provide automatic gradient mesh generation for a whole image. Finally, fitting errors can be simply controlled to balance quality with storage.
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DOI:
10.1145/1201775.882293
发表时间:
2003-07
期刊:
ACM SIGGRAPH 2003 Papers
影响因子:
--
作者:
Y. Ohtake;A. Belyaev;M. Alexa;Greg Turk;H. Seidel
通讯作者:
Y. Ohtake;A. Belyaev;M. Alexa;Greg Turk;H. Seidel
影响因子:
2.5
作者:
FERGUSON, J
通讯作者:
FERGUSON, J
DOI:
10.1145/1275808.1276391
发表时间:
2007-07
期刊:
ACM SIGGRAPH 2007 papers
影响因子:
--
作者:
Jian Sun;Lin Liang;Fang Wen;H. Shum
通讯作者:
Jian Sun;Lin Liang;Fang Wen;H. Shum
DOI:
10.1145/1186822.1073262
发表时间:
2005-07
期刊:
ACM SIGGRAPH 2005 Papers
影响因子:
--
作者:
W. Matusik;Matthias Zwicker;F. Durand
通讯作者:
W. Matusik;Matthias Zwicker;F. Durand
影响因子:
5.2
作者:
Song-Hai Zhang;Tao Chen;Yi-Fei Zhang;Shimin Hu;Ralph Robert Martin
通讯作者:
Song-Hai Zhang;Tao Chen;Yi-Fei Zhang;Shimin Hu;Ralph Robert Martin