A prism-based single-lens stereovision system: From trinocular to multi-ocular
A prism-based single-lens stereovision system: From trinocular to multi-ocular
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DOI：
10.1016/j.imavis.2007.01.002
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发表时间：
2007-11
期刊：
影响因子：
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通讯作者：
Yong Xiao;K. Lim
中科院分区：
文献类型：
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作者：
Yong Xiao;K. Lim
研究了一种采用单CCD摄像机和类棱镜的被动立体视觉系统。首先介绍了它的三目变化：该系统捕获的每一幅图像可以分成三个子图像，这些子图像被视为由棱镜产生的三个虚拟相机同时捕获的图像。两种不同的方法来建立这个系统的模型：一种是基于传统的摄像机标定技术，另一种是基于光线草图的几何分析。第二种方法相对简单，但与基于校准的方法相比足够准确。在此基础上，将三目立体视觉系统的相关知识扩展到单镜头多目立体视觉系统。实验验证了该系统的有效性。本文提出的思想被认为是新颖的。
This paper investigates a passive stereovision system which employs one single CCD camera and one pyramid-like glass prism. Its trinocular variety is first presented: each image captured by this system can be split into three sub-images and these sub-images are taken as the images simultaneously captured by three virtual cameras which are generated by the prism. Two different approaches are developed to model this system: one bases on a conventional camera calibration technique and the other bases on geometrical analysis of ray sketching. The second approach is a relatively simpler but is sufficiently accurate as compared to the calibration based approach. Then the knowledge on this trinocular system is extended to build a single-lens multi-ocular stereovision system. Experiments are conducted to validate this system. The ideas presented in this paper are believed novel.