Home > Archive>Volume 11, Issue 2, 2015 >145-148. DOI:10.1007/s11801-015-4238-4
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A non-contact real-time measurement of lamp dimension based on machine vision
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1. Key Laboratory of Advanced Electrical Engineering and Energy Technology, Tianjin Polytechnic University, Tianjin 300387, China;;2. School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Keiraville 2500, Australia;;3. Baoding Life Automotive Lighting Group Company Limited, Baoding 071000, China

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This work has been supported by the National Natural Science Foundation of China (Nos.60808020 and 61078041), the National Science and Technology Support (No.2014BAH03F01), the Tianjin Research Program of Application Foundation and Advanced Technology (No.10JCYBJC07200), and the Technology Program of Tianjin Municipal Education Commission (No.20130324).

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    Abstract:

    In order to realize the online measurement of lamp dimension, the bulb image dimension measurement based on vision (BIDMV) is proposed. The image of lamp is obtained by camera. After image processing, such as Otsu algorithm, median filter, ellipse fitting and envelope rectangle fitting, the dimension of lamp can be calculated. Based on this method, a non-contact real-time measurement system of the lamp’s dimension is developed. The precision of the proposed method is 0.07 mm, and it can satisfy the tolerance of the National Standard GB15766.1-2008. The experiment results show that the proposed method has a faster measuring speed and a higher precision compared with other measurement methods.

    Reference
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SONG Li-mei, WANG Peng-qiang, CHANG Yu-lan, LI Xiao-jie, XI Jiang-tao, GUO Qing-hua, LI Bing-nan. A non-contact real-time measurement of lamp dimension based on machine vision[J]. Optoelectronics Letters,2015,11(2):145-148

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  • Received:December 26,2014
  • Online: November 26,2015
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