In this thesis, some key problems in texture technique: texture mapping, texture synthesis, texture replacement and its application in Non-photo realistic (NPR) rendering are explored, and some new approaches are proposed:(1) Constrained texture mapping.

• 本文围绕当前纹理研究中的若干热点问题：约束纹理映射、三维纹理合成、图像和视频的纹理替换及纹理技术在非真实感绘制中的应用等方面展开研究：