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题名: Global Depth from Defocus with Fixed Camera Parameters
作者: Wei YJ(魏阳杰) ; Dong ZL(董再励) ; Wu CD(吴成东)
作者部门: 机器人学研究室
会议名称: IEEE International Conference on Mechatronics and Automation
会议日期: August 9-12, 2009
会议地点: Changchum, China
会议主办者: IEEE, IEEE Robot & Automat Soc, Changsha Univ Scie & Technol, Kagawa Univ, Natl Nat Sci Fdn China, Chinese Assoc Automat, Robot Soc Japan, Japan Soc Mech Engn, Japan Soc Precis Engn, Soc Instrument & Control Engineers, Harbin Engn Univ, Univ Elect Commun, Univ Elect Sci & Technol China, Beijing Univ Technol, Jilin Univ, Kagoshima Univ, Harbin Inst Technol, Assoc Young Sci &Technol
会议录: 2009 IEEE INTERNATIONAL CONFERENCE ON MECHATRONICS AND AUTOMATION, VOLS 1-7, CONFERENCE PROCEEDINGS
会议录出版者: IEEE
会议录出版地: NEW YORK
出版日期: 2009
页码: 1887-1892
收录类别: CPCI(ISTP) ; EI
ISBN号: 978-1-4244-2692-8
关键词: Depth from Defocus ; Diffusion Equation ; 3D Reconstruction
摘要: Reconstruction depth from 2D images is an important research issue in computer vision, and depth from defocus (DFD) is an effective way which takes the blurred degree of the region images whose depth of field is limit as the tool of computing depth. Now though there are many DFD methods, they all need to change camera parameters in order to attain blurred images, such as the focal length of the lens, the radius of the lens. If cameras with high level of amplification are used, it is inhibitory to change camera parameters. Therefore, in this paper a novel DFD method is proposed. First, two different blurred images are captured through changing depth. Second, the blurred imaging model is constructed with the relative blurring and the diffusion equation, and the relation between depth and blurring is discussed from two aspects. Finally, the problem of computing depth is transformed into an optimization issue. The method proposed in this paper does not need to change camera parameters, so the process is very simple and can be used in some special applications. The simulation results show that this method can attain depth with high precision.
语种: 英语
产权排序: 1
内容类型: 会议论文
URI标识: http://ir.sia.cn/handle/173321/8723
Appears in Collections:机器人学研究室_会议论文

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Recommended Citation:
魏阳杰; 董再励; 吴成东.Global Depth from Defocus with Fixed Camera Parameters.见:IEEE .2009 IEEE INTERNATIONAL CONFERENCE ON MECHATRONICS AND AUTOMATION, VOLS 1-7, CONFERENCE PROCEEDINGS,NEW YORK,2009,1887-1892
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