A Concise and Rapid Error Correction Algorithm in Automatic Optical Inspection of Solder Paste

Author

Wu, Jianjie ; Chen, Zhongbing

Author_Institution

Sch. of Software Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2011

fDate

17-18 Sept. 2011

Firstpage

325

Lastpage

329

Abstract

Image-array-based automatic optical inspection system captures multiple images of the inspected printed circuit board through synchronous exposure. Therefore a correct mosaic of images is very import to subsequent solder paste inspection. However, Design error of the mechanism always leads to geometric errors in the image such as translation, rotation and scaling distortion. These errors make severe displacements in the image. To solve such problems, a concise and rapid error correction algorithm is proposed base on multiple point interpolation. Experiments show that the algorithm can assure rapid and correct mosaic of images of the whole printed circuit board.

Keywords

automatic optical inspection; error correction; image segmentation; interpolation; printed circuit testing; printed circuits; solders; design error; error correction algorithm; geometric errors; image array based automatic optical inspection system; image mosaic; inspected printed circuit board; multiple point interpolation; solder paste inspection; synchronous exposure; Algorithm design and analysis; Cameras; Error correction; Inspection; Interpolation; Standards Board; Automatic Optical Inspection; Geometric Error; Image Array; Multiple Point Interpolation;

fLanguage

English

Publisher

ieee

Conference_Titel

Internet Computing & Information Services (ICICIS), 2011 International Conference on

Conference_Location

Hong Kong

Print_ISBN

978-1-4577-1561-7

Type

conf

DOI

10.1109/ICICIS.2011.85

Filename

6063262