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用于物体表面形貌和变形测量的三维数字图像相关方法 被引量:74

Three-dimensional Digital Image Correlation Method for Shape and Deformation Measurement of an Object Surface
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摘要 使用单个摄像机的二维数字图像相关方法通常仅局限于平面物体的面内变形测量,而使用两个摄像机基于双目立体视觉原理的三维数字图像相关方法克服了这一局限,可对平面和曲面物体表面的三维形貌和载荷作用下的三维变形进行测量。本文介绍了三维数字图像相关方法的基本原理及其关键技术,并用两个典型的实验验证了该方法的有效性。 Two-dimensional digital image correlated with single camera is limited to in-plane deformation measurement of a plane object. Based on three-dimensional binocular vision principle, the advanced three-dimensional digital image correlation (3D-DIC) method breaks through this limit and can measure the three-dimensional shape and deformation of both plane and curved surface under a loading. In this paper, the basic principle and key techniques of 3D-DIC are presented, and two typical validity check experiments were carried out to validate the 3D-DIC.
出处 《实验力学》 CSCD 北大核心 2007年第6期556-567,共12页 Journal of Experimental Mechanics
基金 国家重点基础研究发展计划2004CB619304 国家自然科学基金:10732080 10121202 10472050 10625209 教育部优秀青年教师资助计划和新世纪优秀人才支持计划 北京市自然科学基金(3072007)
关键词 数字图像相关方法 立体视觉 摄像机标定 变形 digital image correlation (DIC) three-dimensional vision camera calibration deformation
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