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发明授权
CN101853645B 生成对象距离场的方法 有权

生成对象距离场的方法
摘要：
本发明涉及生成对象距离场的方法。本发明提供了一种生成对象的距离场的方法，其中所述距离场包括栅格集合，所述对象包括轮廓集合，所述方法由计算机执行。确定围绕所述对象的所述栅格集合中的第一栅格。将外部重构方法与所述第一栅格相关联。确定所述栅格集合的边界栅格集合，其中各边界栅格围绕所述轮廓集合中特定轮廓的一部分。将边界重构方法与各边界栅格相关联。确定围绕所述对象的所述栅格集合中的最终栅格。将内部重构方法与所述最终栅格相关联。使用该外部和边界重构方法确定组合距离，该组合距离进一步被所述内部重构方法处理以生成所述对象的所述距离场。
摘要（英）：

A method generates a distance field of an object, where the distance field includes a set of cells and the object includes a set of outlines. A processor is included for performing steps of the method. A first cell of the set of cells enclosing the object is determined. An outside reconstruction method is associated with the first cell. A set of boundary cells of the set of cells is determined, where each boundary cell encloses a portion of a particular outline in the set of outlines. A boundary reconstruction method is associated with each boundary cell. A final cell of the set of cells is determined enclosing the object. An inside reconstruction method is associated with the final cell. The outside and boundary reconstruction methods are used to determine combined distances, which are further processed by the inside reconstruction method to generate the distance field of the object.

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