系统仿真学报 ›› 2018, Vol. 30 ›› Issue (11): 4180-4186.doi: 10.16182/j.issn1004731x.joss.201811016

• 仿真系统与技术 • 上一篇    下一篇

自然图像对的联合抠图方法

魏毅1, 商柳2, 邱嘉和2, 张桂娟3, 朱登明2,4, *, 沈燕飞5   

  1. 1. 武夷学院数学与计算机学院,武夷山 354300;
    2. 中国科学院计算技术研究所,北京 100190;
    3. 山东师范大学信息科学与工程学院,济南 250014;
    4. 太仓中科信息技术研究院,太仓 215400;
    5. 北京体育大学信息工程学院,北京 100084
  • 收稿日期:2018-05-05 修回日期:2018-06-10 发布日期:2019-01-04
  • 作者简介:魏毅(1978-),男,福建建瓯,博士,讲师,研究方向为虚拟现实。
  • 基金资助:
    国家科技重大专项(2017ZX05019005),国家自然科学基金(61173067, 61379085, 61572299), 国家863计划(2015AA016401),福建省自然科学基金项目(2018J01562)

Co-matting of Natural Image Pairs

Wei Yi1, Shang Liu2, Qiu Jiahe2, Zhang Guijuan3, Zhu Dengming2,4, *, Shen Yanfei5   

  1. 1. School of Mathematics and Computer, Wuyi University, Wuyishan 354300, China;
    2. Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100190, China;
    3. School of Information Science and Engineering, Shandong Normal University, Jinan 250014, China;
    4. Taicang Institute of Information Technology, Taicang 215400, China;
    5. School of Information Engineering, Beijing Sport University, Beijing 100084, China
  • Received:2018-05-05 Revised:2018-06-10 Published:2019-01-04

摘要: 针对自然图像的抠图问题,研究了一种基于闭形式解的图像对联合抠图方法。根据输入的两张图像与其初始掩像,计算图像对之间的相似矩阵;扩展现有描述单幅图像的抠图拉普拉斯矩阵,提出一种联合抠图拉普拉斯矩阵来刻画图像对;基于联合抠图拉普拉斯矩阵构造能量函数,并通过求解其极小值得到图像对的抠图结果。在多个数据集上进行了实验,实验结果表明新方法具有很好的抠图效果,适用于连续图像序列的抠图。

关键词: 自然图像抠图, 联合抠图, 相似性估计, 联合抠图拉普拉斯

Abstract: Aiming at dealing with the problem of natural image matting, this study focused on a closed-form solution to image pairs matting. For given two images and their corresponding trimaps, the affinity matrix between the two images is calculated. The matting Laplacian which characters an image to co-matting Laplacian which characters a pair of images is generalized. The alpha mattes of image pairs were obtained by optimizing the energy function which derived from co-matting Laplacian. To validate the approach, the experiments on several datasets are conducted. The results demonstrate that the method can achieve higher quality and is suitable for matting of a sequence of images.

Key words: natural image matting, co-matting, affinity estimation, co-matting Laplacian

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