摘要： 针对传统Bayes抠图算法容易在生成的不透明度通道上产生脉冲噪音的问题，提出一种改进算法，充分考虑分簇采样点所占比重对α值估算准确度的影响，在贝叶斯框架中嵌入一个含比重因子的平滑约束项表达式。仿真实验结果表明，该改进算法能够有效消除脉冲噪音，使抠像结果更为光滑。

关键词: Bayes抠图, 数字抠图, 自然图像抠图

Abstract: Aiming at the problem that traditional Bayes matting algorithm usually generates impulse noises in the resulted opacity channel, an improved algorithm is presented, which considerates the effect on α by clustering sampling points weight and introduces a term of smoothness constraint into the Bayes matting framework. Simulation experimental results show that the impulse noise is eliminated and matting quality is improved.

Key words: Bayes matting, digital matting, natural image matting

中图分类号: 

• TP391