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改进的Knockout自然景物提取算法 被引量：2

Improved Knockout Natural Image Matting Algorithm
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摘要 针对Knockout算法中颜色估计模型只适用于光滑图像的问题,提出一种新的颜色估计模型。采用区域生长法将未知区域划分为若干个子区域,以距离每一个子区域最近的前景和背景轮廓线上的点为中心做矩形块,分别计算2个矩形块内前景和背景像素点的颜色加权平均值,将其作为该子区域的前景和背景颜色分量。实验结果表明,改进后的颜色估计模型在图像边缘附近颜色相差较大的自然景物提取中有较好表现。 Aiming at the problem which is appeared in Knockout algorithm that the color estimate model is only applied to smooth image, a new color estimate model is proposed. The unknown region is divided into many subregions by region growth algorithm, rectangular block is made out based on the point which is nearest to the subregion in the foreground and background contour line. The weighted average values of foreground and background pixels color in rectangular block are computed respectively. The values are taken as the foreground and background color components. The improved color estimate model has better behavior in the natural image matting for the image which the edge color is very different.
作者 窦燕 肖凤 孔令富 冯丙春
机构地区 燕山大学信息科学与工程学院
出处 《计算机工程》 CAS CSCD 北大核心 2009年第14期212-214,共3页 Computer Engineering
基金 国家"863"计划基金资助项目(2006AA04Z212)
关键词 蓝屏景物提取 自然景物提取 透明度(α值) 前景 背景 blue screen image matting natural image matting transparency（a value） foreground background
分类号 TP391 [自动化与计算机技术—计算机应用技术]
  • 相关文献

参考文献8

  • 1Porter T,Duff T.Compositing Digital Images[C]//Proc.of ACM SIGGRAPH'84.New York,USA:[s.n.],1984.
  • 2Smith A R,Blinn J F.Blue Screen Matting[C]//Proc.of ACM SIGGRAPH'96.New Orleans,USA:[s.n.],1996.
  • 3Chuang Y Y,Curless B,Salesin D,et al.A Bayesian Approach to Digital Matting[C]//Proc.of IEEE Computer Vision and Pattern Recognition.Hawaii,USA:IEEE Press:2001.
  • 4Sun Jian,Jia Jiaya,Tang C K,et al.Poisson Matting[C]//Proc.of ACM SIGGRAPH'04.Los Angeles,USA:ACM Press,2004.
  • 5Rother C,Kolmogorov V,Blake A.Interactive Foreground Extraction Using Iterated Graph Cuts[C]//Proc.of ACM SIGGRAPH'04.Los Angeles,USA:ACM Press,2004.
  • 6林生佑.基于感知颜色空间的透明度估计方法[J].计算机工程,2007,33(20):40-42. 被引量：2
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  • 8Berman A,Vlahos P,Dadourian A.Comprehensive Method for Removing from an Image the Background Surrounding a Selected Object:USA,6134345[P].2000-09-12.

二级参考文献9

  • 1Smith A R, Blinn J F. Blue Screen Matting[C]//Proceedings of ACM SIGGRAPH' 96.1996.
  • 2Berman A, Dardourian A, Vlahos P. Method for Removing from an Image the Background Surrounding a Selected Object: U,S,, 6134346[P]. 2000.
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  • 9Chuang Y Y, Agarwala A, Curless B, et al. Video Matting of Complex Scenes[C]//Proceedings of SIGGRAPH'02.2002.

共引文献1

同被引文献19

  • 1Thomas P, Tom D. Compositing Digital Images[J]. ACM SIG- GRAPH Computer Graphics, 1984, 18(3): 253-259.
  • 2Smith A R, Blinn J F. Blue Screen Matting[C] //Proc. of ACM SIGGRAPH’96. New York, USA: ACM Press, 1996.
  • 3Ruzon M, Tomasi C. Alpha Estimation in Natural Images[C] //Proc. of CVPR’00. New York, USA:[s. n.] , 2000.
  • 4Chuang Y Y, Curless B, Salesin D, et al. A Bayesian Approach to Digital Matting[C] //Proc. of CVPR’01. Hawaii, USA:[s. n.] , 2001.
  • 5Sun Jian, Jia Jiaya, Tang Chi-Keung, et al. Poisson Matting[C] // Proc. of SIGGRAPH’04. New York, USA:[s. n.] , 2004.
  • 6Khandelwal V, Gupta A, Kashyap M, et al. Natural Image Matting Using HSI Framework[C] //Proc. of ICCSIT’09. Beijing, China:[s. n.] , 2009.
  • 7Singaraju D, Rother C, Rhemann C. New Appearance Models for Natural Image Matting[C] //Proc. of CVPR’09. Miami, Florida, USA:[s. n.] , 2009.
  • 8Li Hongliang, Ngan K N, Liu Qiang. FaceSeg: Automatic Face Segmentation for Real-time Video[J]. Multimedia, 2009, 11(1): 77-88.
  • 9Hariprasad K, Iyer K N, Kausik M, et al. Alpha Model Based Mixed Pixel Processing for View Synthesis[C] //Proc. of 3DTV’10. Tampere, Finland:[s. n.] , 2010.
  • 10Arie B, Arpag D, Paul V. Method for Removing from an Image the Background Surrounding a Selected Object: USA, 6134346[P]. 2000-10-17.

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计算机工程
2009年 第14期

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