Depth integration and curved-surface evolution based multi-viewpoint three-dimensional reconstruction method
A three-dimensional reconstruction, multi-view technology, applied in the field of three-dimensional depth information acquisition system, can solve the problems of high complexity of complete solution energy function and difficult to deal with complex scenes, etc.
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[0084] The visible light camera uses a CCD sensor, which can provide color images with a resolution of 320×240. The depth camera used is a TOF camera, model Swiss Ranger 4000, which can provide depth images and intensity images with a resolution of 176×144 at the same time.
[0085] The specific calibration method of the camera array is as follows: firstly, the intensity image of the TOF camera is up-sampled to make its resolution reach 352×288; then, each CCD camera and TOF camera are calibrated using Zhang Zhengyou’s flat-panel camera calibration method, and the obtained The internal parameters of each camera, the external parameters projected from the TOF camera to each CCD camera, and the external parameters between the CCD cameras.
[0086] The general flowchart of the present embodiment method is shown in figure 1 , the specific method can be divided into the following three steps: the first step is to project the depth image obtained by the TOF camera into the field of ...
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