• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

计算机工程与科学

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基于轮廓提取与深度筛选的双目三维重构技术

马建设,魏云峰,苏萍   

  1. (清华大学深圳研究生院,广东 深圳 518055)
  • 收稿日期:2016-05-18 修回日期:2016-11-23 出版日期:2018-04-25 发布日期:2018-04-25
  • 基金资助:

    国家863计划(2015AA043302);国家自然科学基金(61405103);深圳市基础研究项目(JCYJ20150529164918737)

A binocular stereo-view 3D reconstruction algorithm
based on contour extraction and depth screening

MA Jianshe,WEI Yunfeng,SU Ping   

  1. (Graduate School at Shenzhen,Tsinghua University,Shenzhen 518055,China)
  • Received:2016-05-18 Revised:2016-11-23 Online:2018-04-25 Published:2018-04-25

摘要:

针对基于深度图融合三维重构方法获取的三维重构模型,易受到深度信息误差影响的情况,提出一种基于轮廓提取与深度筛选的双目立体视觉三维重构方法。采用标准棋盘校准双目三维重构系统,利用Canny算子对目标物体进行边界检测,综合采用形态学腐蚀与膨胀方法提取指定方向上的连续边界,用连续边界提取目标物体。在此基础上,对目标物体深度信息进行筛选、拟合插值以获取连续深度信息。结果表明,相对于常规三维重构算法,由本算法三维重构的目标物体表面完整度更高,且目标物体周围的背景环境噪声被去除。

 

关键词: 3D重构, 双目立体视觉, 深度图, 轮廓提取, 插值

Abstract:

Aimming at the phenomeon that the 3D model, which is obtained by the 3D reconstruction algorithm based on depthmapfusion, is easily influenced by depth information error, a binocular stereoview 3D reconstruction algorithm based on contour extraction and depth screening is proposed. A standard checker board is adopted to calibrate the binocular 3D reconstruction system. Canny operator is used to detect the boundary of the target object, and morphological corrosion andexpansion methods are comprehensively used to extract the continuous boundary in a specified direction.On this basis,the depth information of the target object is filtered and interpolated in order to calculate the continuous depth value.The results show that, compared with the conventional 3D reconstruction algorithm, the target object of this algorithm has higher surface integrity, and the background hot pixels surrounding the target object are removed.

Key words: 3D-renconstruction, binocular stereoview, depthmap, contour extraction, interpolation