摘要
基于结构光测量和小孔成像视觉的特点,用摄像机和投影仪所组成的三维结构光测量系统来进行水下三维视觉测量并获得水下空间中特征点的三维信息。利用结构光的双目视觉方法实现了对物体的三维测量,在世界坐标系中建立了此方法的数学模型,并获得摄像机和投影仪的内外参数。实验证明,当目标物体放置在距离摄像机光心2.50 m处,摄像机和投影仪光心相距为26.50 cm时,进行深度测量的精度可以达到0.5 mm,基本满足测量需求。
Based on the characteristics of structured light measurement, the paper obtains 3 D information on the fea- ture points of underwater space through camera and projector system for 3D visual measurement. A mathematical model of underwater 3D data is established with the method of structured light binocular vision and by the principle of 3D measurement. The intrinsic and external parameters of the camera and projector are also obtained. The experi- ments show that when the target object is placed 2.50 m away from the camera principal point and it is 26.50 cm between the camera and projector, the calibration accuracy is less than 0.5 mm. This meets requirment for measure- ment basically.
出处
《大连海洋大学学报》
CAS
CSCD
北大核心
2012年第6期583-586,共4页
Journal of Dalian Ocean University
基金
国家自然科学基金资助项目(61072035)
辽宁省海洋与渔业厅项目(2011027)
关键词
水下测量
双目视觉
摄像机标定
投影仪标定
underwater measurement
binocular vision
camera calibration
projector calibration
