关键词: 虚拟手术, 体纹理合成, 肝脏, 纹理映射

Abstract: The textures of organs in a virtual surgery system can give users intuitive feelings, and improve the sense of immersion and operation. This paper studies the texture expressing technology in a virtual liver surgery system. Firstly, the paper accomplishes the synthesis of solid texture space, then improves the texture synthesis technology based on multiplex calculation which has been used in 2D situations, and expands it to be used in 3D space to distribute and color the solid texture cubes. In the meantime, it calculates and colors the interior point sets of every triangular patch, in order to strengthen the sense of authenticity. Also it can see inner textures when incising the liver model. The experimental results show that the method can produce 3D textures which are highly realistic and similar to the sample solid textures, and the synthetic rates can meet the requirements of virtual surgery.

Key words: virtual surgery, solid texture synthesis, liver, texture mapping