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极大熵条件下的动态搜索优化图象重建方法

A Developed Algorithm to the Automatic Mixed Mode Mesh Generation
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摘要 提出一种满足多种准则的动态搜索优化图象重建方法。从图象场的本质出发,设立了3个准则函数。熵函数的导数是非线性的,本文将其变换为近似的线性公式以获得迭代公式。 In this paper, a simple but effecient algorithm for automatic mesh generation over arbitrary polygonal domains is proposed. The algorithm can generate three different mesh topologies: an all triangular element mesh, a mixed mode element mesh(which consist of both quadrilateral and triangular elements) and an all quadrilateral element mesh. If an all triangular element mesh is the result mesh needed, the method the method can work just as other general triangulation method. If a mixed mode or all quadrilateral element mesh should be generated, the method can generate rectangles or squres as more as possible.
出处 《中国图象图形学报(A辑)》 CSCD 1997年第7期520-521,524,共3页 Journal of Image and Graphics
关键词 Randon变换 极大熵 动态搜索 图象重建 计算机 Finite element mesh generation,Triangular method ,Quadtree method
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