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中文摘要：
针对现有三维扫描设备存在的体积较大,测量速度较慢以及对环境光照敏感等问题,利用双目立体视觉和散斑结构光,开发了一种小型的形貌测量装置。首先对该装置的投射模块,硬件结构进行了设计,其次对涉及到的主要算法,采用数字图像相关法进行像点坐标匹配进行了研究,最后对系统的测量效果和精度进行了初步验证。实验表明,对于单幅点云,该扫描装置测量过程迅速,数据采集可在2 ms内完成。并且在保证生成点的数目较多的同时,精度可达到0.1 mm。因此,本文提出的小型散斑投射装置可在确保测量精度的前提下,实现工件的快速测量。
英文摘要：
As the existing 3D scanning equipments have large size,slow measurement and impressionable for ambient light,a small morphology measurement device is developed by using binocular stereo vision and speckle structure light. The projection module and hardware structure are designed,and then image point coordinate match is studied by digital image correlation method. Finally,measuring effect and accuracy of the system are verified. The results show that for a single point cloud,the measuring process of scanning device is fast,and data acquisition can be done in 2 ms. The accuracy reached 0. 1 mm when the number of generated points are large. Therefore,the small speckle projection device can achieve fast scanning of work piece and have a higher precision.
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