Structure Preserving Manipulation and Interpolation for Multi-element 2D Shapes
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Date
2012
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Publisher
The Eurographics Association and Blackwell Publishing Ltd.
Abstract
This paper presents a method that generates natural and intuitive deformations via direct manipulation and smooth interpolation for multi-element 2D shapes. Observing that the structural relationships between different parts of a multi-element 2D shape are important for capturing its feature semantics, we introduce a simple structure called a feature frame to represent such relationships. A constrained optimization is solved for shape manipulation to find optimal deformed shapes under user-specified handle constraints. Based on the feature frame, local feature preservation and structural relationship maintenance are directly encoded into the objective function. Beyond deforming a given multi-element 2D shape into a new one at each key frame, our method can automatically generate a sequence of natural intermediate deformations by interpolating the shapes between the key frames. The method is computationally efficient, allowing real-time manipulation and interpolation, as well as generating natural and visually plausible results.
Description
@article{10.1111:j.1467-8659.2012.03218.x,
journal = {Computer Graphics Forum},
title = {{Structure Preserving Manipulation and Interpolation for Multi-element 2D Shapes}},
author = {Yang, Wenwu and Feng, Jieqing and Wang, Xun},
year = {2012},
publisher = {The Eurographics Association and Blackwell Publishing Ltd.},
ISSN = {1467-8659},
DOI = {10.1111/j.1467-8659.2012.03218.x}
}