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A highly-effective incremental/decremental Delaunay mesh-generation strategy for image representation

机译:一种高效的增量/减量Delaunay网格生成策略,用于图像表示

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摘要

A flexible mesh-generation framework for image representation based on Delaunay triangulations is proposed. By fixing the various degrees of freedom available within this framework, two mesh-generation methods, known as ID1 and ID2, are derived. These two methods are shown to perform extremely well, producing meshes of significantly higher quality than state-of-the-art schemes at relatively low computational cost. Furthermore, the ID1 and 1D2 methods each provide a mechanism whereby mesh quality can be increased (or decreased) in return for a corresponding increase (or decrease) in computational cost. Lastly, we demonstrate that one component of our proposed methods, called bad-point replacement, can be used as a postprocessing optimization step that, when added to other previously-proposed mesh-generation methods, yields meshes of much greater quality.
机译:提出了一种基于Delaunay三角剖分的灵活的网格生成框架。通过固定此框架中可用的各种自由度,可以得出两种称为ID1和ID2的网格生成方法。这两种方法显示出非常好的性能,以相对较低的计算成本产生了比现有技术方案质量更高的网格。此外,ID1和1D2方法各自提供一种机制,通过该机制,可以提高(或降低)网格质量,以换取相应的计算成本的增加(或降低)。最后,我们证明了我们提出的方法的一个组成部分,称为坏点替换,可以用作后处理优化步骤,将其添加到其他先前提出的网格生成方法中后,可以产生质量更高的网格。

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