Research On The Theory Of Binocular Stereo Vision Technique And Programming

The key techniques is composed of five parts, which are video capture, camera calibration, image pre-processing, feature extraction, stereo correspondence and three-dimension reconstruction. A video capture system accessing to buffer directly is designed. Simultaneously, the calibration techniques of two cameras are studied. By using RAC(radial alignment constraint)of imaging process to decompose camera parameters and organizing the solving sequence of the parameters rationally, all parameters can be obtained through solving linear equations that avoid non-linear optimization. The pre-processing of image includes the noise filtering, the enhancement of image contrast, image edge detection, and so on. The arithmetic is implemented with VC++. A stereo matching approach based on edge feature is proposed. The procedure of the correspondence is fulfilled through the edge-detection, the similarity check and the consistence check. Rebuild 3D image for disperse data and achieve depth information.