Invention Grant
US08411934B2 System and method for depth map extraction using region-based filtering 失效
使用基于区域的滤波进行深度图提取的系统和方法

  • Patent Title: System and method for depth map extraction using region-based filtering
  • Patent Title (中): 使用基于区域的滤波进行深度图提取的系统和方法
  • Application No.: US12741872
    Application Date: 2007-11-09
  • Publication No.: US08411934B2
    Publication Date: 2013-04-02
  • Inventor: Dong-Qing ZhangIzzat Izzat
  • Applicant: Dong-Qing ZhangIzzat Izzat
  • Applicant Address: FR Boulogne-Billancourt
  • Assignee: Thomson Licensing
  • Current Assignee: Thomson Licensing
  • Current Assignee Address: FR Boulogne-Billancourt
  • Agent Robert D. Shedd; Vincent E. Duffy; James McKenzie
  • International Application: PCT/US2007/023632 WO 20071109
  • International Announcement: WO2009/061305 WO 20090514
  • Main IPC: G06K9/62
  • IPC: G06K9/62
System and method for depth map extraction using region-based filtering
Abstract:
A system and method for extracting depth information from at least two images employing region-based filtering for reducing artifacts are provided. The present disclosure provides a post-processing algorithm or function for reducing the artifacts generated by scanline Dynamic Programming (DP) or other similar methods. The system and method provides for acquiring a first image and a second image from a scene, estimating the disparity of at least one point in the first image with at least one corresponding point in the second image to generate a disparity map, segmenting at least one of the first or second images into at least one region, and filtering the disparity map based on the segmented regions. Furthermore, anisotropic filters are employed, which have a great smoothing effect along the vertical direction than that of the horizontal direction, and therefore, reduce stripe artifacts without significantly blurring the depth boundaries.
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