Abstract
It is well known that real PCD image inspection based on referential approaches faces misalignment problems in detecting defects between a template image and a defective image. Hence, a reliable image registration technique is needed to align these two images perfectly. Hence, a registration technique which incorporates affine transformation and bi-cubic interpolation has been proposed. Experimental results have shown that this registration technique is suitable to be employed to obtain well-aligned defective images before detection algorithm takes place in PCD inspection.
Original language | English |
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Pages (from-to) | 717-722 |
Number of pages | 6 |
Journal | ICIC Express Letters |
Volume | 6 |
Issue number | 3 |
Publication status | Published - Mar 2012 |
Externally published | Yes |
Keywords
- Printed circuit boards. image registration. affine transformation. bi-cubic interpolation. defect detection
ASJC Scopus subject areas
- Control and Systems Engineering
- General Computer Science