Input Decrease Effects by Principle Component Analysis on the Neural Network Visual Inspection of Solder Joints
نویسندگان
چکیده
منابع مشابه
analysis of power in the network society
اندیشمندان و صاحب نظران علوم اجتماعی بر این باورند که مرحله تازه ای در تاریخ جوامع بشری اغاز شده است. ویژگیهای این جامعه نو را می توان پدیده هایی از جمله اقتصاد اطلاعاتی جهانی ، هندسه متغیر شبکه ای، فرهنگ مجاز واقعی ، توسعه حیرت انگیز فناوری های دیجیتال، خدمات پیوسته و نیز فشردگی زمان و مکان برشمرد. از سوی دیگر قدرت به عنوان موضوع اصلی علم سیاست جایگاه مهمی در روابط انسانی دارد، قدرت و بازتولید...
15 صفحه اولSolder joints inspection using neural network and fuzzy rule-based classification
In this paper, we described an approach ,to automation of visual inspection of solder joint defects of SMC(suface mounted components) on PCBs (Printed Circuit Board) by using neural network and fizzy rule-based classification method. Inherent&, suface of the solder joints is curved, tiny and specular reflective; it induces a difiiccul~ of taking good image of the solder joints. And the shape of...
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In this paper, we described an approach in automation, the visual inspection of solder joint defects of surface mounted components on a printed circuit board, using a neural network with fuzzy rule-based classification method. Inherently, the solder joints have a curved, tiny, and specular reflective surface. This presents the difficulty in taking good images of the solder joints. Furthermore, ...
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In this paper; we described an approach to automation of visual inspection of BGA solder joint defects of surface mounted components on printed circuit board by using neural network. Inherently, the BGA solder joints are located below its own package body, and this induces a diflculty of taking good image of the solder joints by using conventional imaging system. To acquire the cross-sectional ...
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In this paper, efficient techniques for solder joint inspection have been described. Using three layers of ring shaped LED's with different illumination angles, three frames of images are sequentially obtained. From these images the regions of interest (soldered regions) are segmented, and their characteristic features including the average gray level and the percentage of highlights referred t...
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ژورنال
عنوان ژورنال: Journal of The Japan Institute of Electronics Packaging
سال: 2013
ISSN: 1343-9677,1884-121X
DOI: 10.5104/jiep.16.206