Presentation 2013-03-07
A study on test image production using frequency domain correlation with convex function for radiographic inspection equipments
Yoichi KATO, Tetsuya TANIZAKI, Hiroshi YASUKAWA,
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Abstract(in English) X-ray inspection is frequently used to inspect the solder bonds of surface-mounted components. This is especially true for LSIs since visual examination is made impossible because the package covers the BGA. The inherent instability of x-ray inspection and the low SNR of the resulting images are commonly offset by averaging a number of images; unfortunately, this increases the time taken. Our solution is to use fewer inspection images but achieve acceptable image quality by correlating them to a reference image by an image processing technique in the frequency domain.
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Keyword(in English) BGA / training data / correlation coefficient / convex function
Paper # SIS2012-45
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Committee SIS
Conference Date 2013/2/28(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A study on test image production using frequency domain correlation with convex function for radiographic inspection equipments
Sub Title (in English)
Keyword(1) BGA
Keyword(2) training data
Keyword(3) correlation coefficient
Keyword(4) convex function
1st Author's Name Yoichi KATO
1st Author's Affiliation Graduate School of Information Science and Technology, Aichi Prefectural University:Engineering &Development, Nagoya Electric Works Co., LTD.()
2nd Author's Name Tetsuya TANIZAKI
2nd Author's Affiliation Engineering &Development, Nagoya Electric Works Co., LTD.
3rd Author's Name Hiroshi YASUKAWA
3rd Author's Affiliation Graduate School of Information Science and Technology, Aichi Prefectural University
Date 2013-03-07
Paper # SIS2012-45
Volume (vol) vol.112
Number (no) 465
Page pp.pp.-
#Pages 4
Date of Issue