利用机器实现像人眼一样实时成三维立体像的想法,一直是各国研究人员的努力方向。瑞士电子与微技术中心 CSEM SA 在这领域有很大进展,已研究了利用发射的光(激光)照明物体获得其立体像的三代三维光学摄像机,即距离光学摄像机。此摄像机...利用机器实现像人眼一样实时成三维立体像的想法,一直是各国研究人员的努力方向。瑞士电子与微技术中心 CSEM SA 在这领域有很大进展,已研究了利用发射的光(激光)照明物体获得其立体像的三代三维光学摄像机,即距离光学摄像机。此摄像机可以应用于机器人、无人驾驶车等三维视觉中。文中介绍了其主要研究进展、工作原理和技术,对比了两代三维光学摄像机的主要性能,最后介绍了第三代三维光学摄像机的发展方向。展开更多
An easy-to-implement yet practical single-camera microscopic stereo-digital image correlation(stereo-DIC) technique is proposed for surface three-dimensional(3D) deformation measurement of singe lap joint(SLJ) samples...An easy-to-implement yet practical single-camera microscopic stereo-digital image correlation(stereo-DIC) technique is proposed for surface three-dimensional(3D) deformation measurement of singe lap joint(SLJ) samples subjected to mechanical loads. The basic principles, optical configurations and implementation procedures of the proposed technique are described in detail. Compared with existing single-camera 2D-DIC technique, which has been regularly used for in-plane deformation measurement of a SLJ specimen, the proposed technique offers the special merit of simultaneously determining all the three displacement components by simply adding two additional optical elements to existing single-camera 2D-DIC systems. The accuracy and effectiveness of the proposed technique is demonstrated by measuring the 3D deformation of a SLJ specimen subjected to quasi-static tensile loads.展开更多
文摘利用机器实现像人眼一样实时成三维立体像的想法,一直是各国研究人员的努力方向。瑞士电子与微技术中心 CSEM SA 在这领域有很大进展,已研究了利用发射的光(激光)照明物体获得其立体像的三代三维光学摄像机,即距离光学摄像机。此摄像机可以应用于机器人、无人驾驶车等三维视觉中。文中介绍了其主要研究进展、工作原理和技术,对比了两代三维光学摄像机的主要性能,最后介绍了第三代三维光学摄像机的发展方向。
基金supported by the National Natural Science Foundation of China(Grant Nos.1127203211322220 and 11427802)+2 种基金the Program for New Century Excellent Talents in University(Grant No.NCET-12-0023)the Science Fund of State Key Laboratory of Automotive Safety and Energy(Grant No.KF14032)Beijing Nova Program(Grant No.xx2014B034)
文摘An easy-to-implement yet practical single-camera microscopic stereo-digital image correlation(stereo-DIC) technique is proposed for surface three-dimensional(3D) deformation measurement of singe lap joint(SLJ) samples subjected to mechanical loads. The basic principles, optical configurations and implementation procedures of the proposed technique are described in detail. Compared with existing single-camera 2D-DIC technique, which has been regularly used for in-plane deformation measurement of a SLJ specimen, the proposed technique offers the special merit of simultaneously determining all the three displacement components by simply adding two additional optical elements to existing single-camera 2D-DIC systems. The accuracy and effectiveness of the proposed technique is demonstrated by measuring the 3D deformation of a SLJ specimen subjected to quasi-static tensile loads.
