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Three-dimensional measurement technique in reverse engineering, industrial inspection, quality control and other fields occupies a very important position, vision-based measurement technology as a means of non-contact measurement , and compared to the conventional coordinate measuring machine , high speed, large -scale easy to operate. Direct simulation of human eyes treated scene two mesh measuring three-dimensional measurements are the most common vision-based implementations . Establish a simple and flexible two dimensional measurement system project has important theoretical significance and practical value. In this paper, a study this aspect , the main research contents and results are as follows : 1. At lower cost structure created a simple two dimensional measurement system target hardware platform , including a CCD camera and lens , the image acquisition card, computer , tripod . The completion of the measurement system hardware configuration based on rational , to achieve a measurement system software framework . (2) a more systematic study of the two dimensional measurement system calibration technology projects . The use of a specially designed calibration plate to Zhang calibration algorithm based on the theory , to achieve a stable and reliable two head stereo vision calibration method . 3 Paste rounded by surface feature points , integrated image feature extraction, epipolar rectification , feature matching , optical triangulation techniques to achieve a three-dimensional data acquisition . 4 in the selection of hardware debugging , software system development, system calibration and three-dimensional reconstruction based on feature points , etc. , based on the establishment of a two dimensional measurement project prototype system and measuring instances were verified on the prototype system . Feature points on the object surface fitting three-dimensional measurement and three-dimensional reconstruction of great significance for the research group laid the foundation for further work .
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