计算机应用

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基于二次Bezier曲面的图像雕刻型面建模

陈宇拓 杨卫民 熊秋波 胡亮 韩旭里   

  1. 中南林业科技大学 中南林业科技大学计算机科学学院 中南林业科技大学计算机科学学院 中南林业科技大学计算机科学学院 中南大学数学科学与计算技术学院
  • 收稿日期:2008-09-16 修回日期:1900-01-01 出版日期:2009-03-01 发布日期:2009-03-01
  • 通讯作者: 陈宇拓

Carving surface modeling of images based on quadratic Bezier curved surface

Chen Yutuo Yang Weimin XIONG QiuBao HU Liang HAN Xuli   

  • Received:2008-09-16 Revised:1900-01-01 Online:2009-03-01 Published:2009-03-01
  • Contact: Chen Yutuo

摘要: 针对纹理清晰且结构较简单的图像,依据其灰色或彩色像素信息,利用二次Bezier曲面直接构建雕刻型面模型。该方法通过对图像进行分割,分析和计算图像子块的像素值及位置参数,作为构建模型曲面片的特征参数,并对曲面片采用一种有限光滑拼接方法实现建模。构建的雕刻型面模型能够表述图像中原物体的基本结构特征,并能满足数字化雕刻加工的需要。算法复杂度较低,实用性强是该建模方法的特点。

关键词: 二次Bezier曲面, 雕刻型面, 建模, 曲面片, 光滑拼接

Abstract: Carving surface was directly modeled using the quadratic Bezier curve surface according to the grey or color pixels information of the image with clear texture and simple construction. This method segmented the image, analyzed and computed the pixel values and their position parameters for the sub-images, and used those values as feature parameters for constructing the surface patches of the model. The modeling was implemented by limited smooth connection of surface patches. The established surface model can describe the basic structure characteristics of the original objects in the image, and satisfy the requirements of digital carving processing. It has low complexity and strong practicability.

Key words: quadratic Bezier curve surface, carving surface, modeling, surface patches, smooth connection