QUICK MATTING: A MATTING METHOD BASED ON PIXEL SPREAD AND PROPAGATION

被引：22

作者：

Gu, Yiyang ^{[1
]}

Jin, Cheng ^{[1
]}

Xue, Xiangyang ^{[1
]}

机构：

[1] Fudan Univ, Shanghai, Peoples R China

来源：

2010 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING | 2010年

关键词：

matting; trimap; alpha value;

D O I：

10.1109/ICIP.2010.5651679

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The problem of matting is always solved by finding the alpha value for each pixel in the image. Many recent methods combine color sampling and affinity definition in different steps, leading to large computational cost. In the proposed method, when the alpha value of a pixel P-i is calculated, the pixel is regarded as a foreground pixel to help calculate its adjacent pixels' alpha values, resulted in a faster solution. This spreading way of traversal also ensures local continuity of foreground object and improves the visual result. Experiments show our Quick Matting can achieve comparable alpha mattes as Robust Matting, while the speed is enhanced by about 25 times.

引用

页码：4661 / 4664

页数：4