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A Method for the Automatic Location of Whole Target Images In Large-Scale Vision Measurement

WU Di1,2,L Nai-guang3,DENG Wen-yi3(1 Physical Science and Technical College,Shenyang Normal University,Shenyang 110034,China)(2 School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China)(3 School of Optoelectronic Information and Communication Engineering,Beijing Information Science & Technology University,Beijing 100085,China)  
A method which can be locate all the targets in one image automatically was presented.In practical application,some threshold parameters were presetted according to the high-reflective characteristic and the image features of the retro-reflective targets,and then coarse and fine location steps were performed in turn.Using the method,the efficiency and the degree of automation in practical measurement can be largely improved.For one RGB image with 3 008×2 000 size and about 140 targets,the locating time for all the targets is 14.9″,and the location precision is 1/10 pixel.
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