The Orientation and Measure of Dimensional Point Based on Stereo Projection
|Course||Mechanical Design and Theory|
|Keywords||Stereological projection Camera Calibration Corresponding points matching Spatial orientation Distance measurement|
With the development of computer technology , the graphics have been given a broad space for development . Especially in the range of graphics applications is becoming increasingly wide application of high frequency is also increasing . Which , CAD / CAM computer graphics is the most widely used in the industrial sector , the most active areas of application , the CAD field a very important area of ??research is based on the three-dimensional shape reconstruction of engineering drawings . Three-dimensional shape reconstruction is to extract three-dimensional information from two-dimensional image , a series of processing these information classification , comprehensive , and reconstruct the three-dimensional shape of the corresponding two-dimensional information in three-dimensional space , restore the physical point , line, surface their topological relations . The core idea of the research is based Stereo projection principle , positioning and measurement space point , the main method is to use a dual- camera to simulate the human eyes , the left and right two -dimensional imaging of three-dimensional space point positioning to achieve a measurement of the distance between two points . To achieve this goal , you must complete two work the camera calibration and the corresponding point of the match . Own design vision sensor cameras inside and outside the parameters of calibration , the calibration method is more simple compared to the previous studies ; spatial points in the two images imaging point of the match is also a research focus and difficulty , the article raised a combined use of the module matches and epipolar constraint composite matching method , this algorithm and simulated by Matlab software . Finally, this approach through experiments carried out validation, comparative analysis of their strengths and weaknesses , and put forward suggestions and ideas and research directions for future issues .