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
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
CLC Number:
LV Ju-jian; ZHAN Yin-wei. Improved Bayes Matting Algorithm[J]. Computer Engineering, 2010, 36(3): 213-214,.
吕巨建;战荫伟. 一种改进的Bayes抠图算法[J]. 计算机工程, 2010, 36(3): 213-214,.