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Proceedings Paper

On-line detection for LED module based on machine vision
Author(s): Yongyue Yang; Weiwei Pang
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Paper Abstract

LED module board is the basic composition unit of LED panel, and the quality of module board is the key and premised for panel to obtain a display of good quality. In this paper, based on the practice of project, use median filtering to filter the pulse and salt-pepper noises, which are produced in the process of image acquisition, and use the adaptive OTSU to segment images, adjust the angle between standard position image and the image caused by table vibration with Fomier-Mellin method, and process results adjusted with bilinear interpolation method. Results show that, using the image segmentation method can accurately determine the threshold image segmentation, results meet factory detection requirements, the method can be used in the industrial field of application of real-time measurement system with a higher promotional value.

Paper Details

Date Published: 15 November 2011
PDF: 6 pages
Proc. SPIE 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 83210S (15 November 2011); doi: 10.1117/12.903853
Show Author Affiliations
Yongyue Yang, Hefei Univ. of Technology (China)
Weiwei Pang, Hefei Univ. of Technology (China)

Published in SPIE Proceedings Vol. 8321:
Seventh International Symposium on Precision Engineering Measurements and Instrumentation
Kuang-Chao Fan; Man Song; Rong-Sheng Lu, Editor(s)

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