| 基于单数码相机的三维视觉测量数据拼接方法 |
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| 引用本文： | 谢光辉,孙军华,吴子彦,张广军.基于单数码相机的三维视觉测量数据拼接方法[J].光学技术,2009,35(1). |
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| 作者姓名： | 谢光辉 孙军华 吴子彦 张广军 |
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| 作者单位： | 1. 北京航空航天大学,仪器科学与光电工程学院,北京,100083;中国空空导弹研究院总体部,河南,洛阳,471009
2. 北京航空航天大学,仪器科学与光电工程学院,北京,100083 |
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| 摘 要： | 针对大型物体三维形貌视觉测量,提出了一种新的视觉测量三维数据拼接方法。以一台高分辨率数码相机作为全局测量设备,在测量过程中固定不动,并以数码相机坐标系作为全局坐标系。视觉传感器流动到不同位置对物体各子区域进行测量,获得局部坐标系下的三维数据。以一平面靶标为中介将视觉传感器在各位置的局部坐标系统一到全局坐标系下,从而将三维数据统一到全局坐标系下,完成三维拼接。该方法无需在被测物上贴标记,因此适用于任何材质的被测物,且消除了拼接累积误差。实验结果表明,该方法相对拼接误差为0.076%。以Venus石膏像为被测对象,视觉传感器对其三个局部区域进行测量,给出了局部测量结果及拼接结果。
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| 关 键 词： | 视觉测量 三维拼接 数码相机 平面靶标 |
3D data registration method for vision measurement based on a single digital camera |
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| XIE Guang-hui,SUN Jun-hua,WU Zi-yan,ZHANG Guang-jun.3D data registration method for vision measurement based on a single digital camera[J].Optical Technique,2009,35(1). |
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| Authors: | XIE Guang-hui SUN Jun-hua WU Zi-yan ZHANG Guang-jun |
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| Institution: | 1.School of Instrument Science and Opto-electronics Engineering;Beijing University of Aeronautics and Astronautics;Beijing 100083;China;2.China Airborne Missile Academy;Luoyang 471009;China |
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| Abstract: | A new 3D data registration method for large surface vision measurement is proposed.A digital camera with high resolution is used as the global measurement equipment,which is fixed at a certain position.The digital camera coordinate frame is taken as the global coordinate frame.The vision sensor measures all sub-areas of the measured object in different positions to acquire 3D data of the sub-areas in local coordinate frames.The local coordinate frames of the vision sensor in different positions are unified ... |
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| Keywords: | vision measurement 3D registration digital camera planar target |
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