不规则镜面物体的三维重建关键技术研究

Research on the Key Technologies of Three-dimensional Reconstruction for the Irregular Mirror Objects

对于不规则镜面物体,由于所拍影像纹理信息不丰富采用近景摄影测量方法进行三维重建不是最佳方案。本文基于结构光的测量方法,结合近景摄影测量探讨不规则镜面物体三维建模的关键技术问题,研究推导了像点到物方空间三维点的数学模型。该方法继承了传统摄影测量方法的优点,其灵活性以及无需匹配同名点的特点。

For the mirror irregular objects,it is not the best solution to make use of close-range photogrammetry method as the image is short of available texture.Based on structured light,combined with close-range photogrammetry,it is discussed the key technical issues about three-dimensional modeling of irregular mirror objects,and deduced the mathematical model from the image point to the space point.Structured light may be used as a solution to simplify the inherent problem of finding correspondences in classical stereovision systems.Then the spatial points of the object surface are obtained quickly by space intersection,which is important and valuable for 3D measurement.