Uncalibrated multiple image stereo system with arbitrarily movable camera and projector for wide range scanning
Uncalibrated multiple image stereo system with arbitrarily movable camera and projector for wide range scanning
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DOI：
10.1109/3dim.2005.80
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发表时间：
2005-06
期刊：
影响因子：
--
通讯作者：
Furukawa Ryo;Hiroshi Kawasaki
中科院分区：
文献类型：
--
作者：
Furukawa Ryo;Hiroshi Kawasaki
在本文中，我们提出了一种未校准，多图像三维重建，使用编码结构光。通常，传统的编码结构光系统由相机和投影仪组成，并且在扫描之前需要预校准。由于摄像机和投影仪必须在校准后固定，因此通过多次扫描重建场景的大面积或减少遮挡是困难的，有时甚至是不可能的。在所提出的方法中，通过应用未校准的立体方法，可以在移动相机或投影仪的同时进行多次扫描，从而实现多图像3D重建。与传统的编码结构光方法相比，我们的系统不需要校准的外部摄像机参数，遮挡减少，并可以获得大面积的场景。与基于图像的多图像重建相比，该系统可以获得更高精度的密集形状数据。由于这些优点，用户可以自由地移动摄像机或投影仪来扫描广泛的对象，但如果摄像机和投影仪同时移动则不行。
In this paper, we propose an uncalibrated, multi-image 3D reconstruction, using coded structured light. Normally, a conventional coded structured light system consists of a camera and a projector and needs precalibration before scanning. Since the camera and the projector have to be fixed after calibration, reconstruction of a wide area of the scene or reducing occlusions by multiple scanning are difficult and sometimes impossible. In the proposed method, multiple scanning while moving the camera or the projector is possible by applying the uncalibrated stereo method, thereby achieving a multi-image 3D reconstruction. As compared to the conventional coded structured light method, our system does not require calibration of extrinsic camera parameters, occlusions are reduced, and a wide area of the scene can be acquired. As compared to image-based multi-image reconstruction, the proposed system can obtain dense shape data with higher precision. As a result of these advantages, users can freely move either the cameras or projectors to scan a wide range of objects, but not if both the camera and the projector are moved at the same time.