The Study of Improving the Shared Sampling Method for Alpha Matting Based on Earth Mover's Distance

• Main Authors: Tsung-Wei Wu, 吳崇維
• Other Authors: Yung-Sheng Chen
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/v5nst8

碩士 === 元智大學 === 電機工程學系 === 106 === Image matting purposes to cut the foreground region from an image by calculating pixel’s color value and estimating alpha value. In the past ten years, lots of papers on image matting have been published. Most of them obtain lower difference by using laplacian matting model. However, those algorithms’ laplacian matrix has too many elements, it takes a lot of time to solve the linear equations. In this paper, we do not want to spend too much time in the computing process, so choosing Shared Matting as our basic algorithm because it’s low cost time. And using Earth Mover’s Distance and simple laplacian matting to find each pixels’ alpha value. The results obtained by our method have lower difference than Shared Matting, and the computing time is within our expectation.