NDLI: High quality compatible triangulations for 2D shape morphing

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High quality compatible triangulations for 2D shape morphing

Content Provider	ACM Digital Library
Author	Liu, Zhiguang Leung, Howard Shum, Hubert P. H. Zhou, Liuyang
Abstract	We propose a new method to compute compatible triangulations of two polygons in order to create a smooth geometric transformation between them. Compared with existing methods, our approach creates triangulations of better quality, that is, triangulations with fewer long thin triangles and Steiner points. This results in visually appealing morphing when transforming the shape from one to another. Our method consists of three stages. First, we compatibly decompose the target and source polygons into a set of sub-polygons, in which each source sub-polygon is triangulated. Second, we map the triangulation of a source sub-polygon onto the corresponding sub-polygon of the target polygon using linear transformation, thereby generating the compatible meshes between the source and the target. Third, we refine the compatible meshes, which can create better quality planar shape morphing with detailed textures. Experimental results show that our method can create compatible meshes of higher quality compared with existing methods, which facilitates smoother morphing process. The proposed algorithm is robust and computationally efficient. It can be applied to produce convincing transformations such as interactive 2D animation creation and special effects in movies.
Starting Page	85
Ending Page	94
Page Count	10
File Format	PDF ZIP
ISBN	9781450339902
DOI	10.1145/2821592.2821594
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2015-11-13
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Shape interpolation 2d morphing Compatible triangulation
Content Type	Text
Resource Type	Article

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