Archive > Volume 11 Issue 2 > 2015,11(2):145-148. DOI:10.1007/s11801-015-4238-4 CSTR:[cstr] Prev Next
A non-contact real-time measurement of lamp dimension based on machine vision
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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.
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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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