Geometric template matching
Fiducial alignment
Die & wire bonding
PCB inspection
Printing industry
Fully
automatic
Fast and robust
Rotation and scaling invariant
High tolerance to pattern degradation
Don't care areas
User-defined pivot point
Based on a feature point technology, EasyFind is designed to find one or more occurrences of a given pattern in a larger image, featuring fast processing and improved robustness compared to classical algorithms. EasyFind has a high tolerance to pattern degradation due to noise, blur, occlusion, missing parts, varying illumination conditions. |
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With an adjustable accuracy up to sub-pixel level, EasyFind provides a very precise, rotation and scaling invariant, alignment. It supports don«æ care areas. This feature allows creating complex pattern shapes. |
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EasyFind is easily integrated into any application, requiring no knowledge of machine vision concepts. |
Feature point technology | |
Feature-point-based means that EasyFind, instead of comparing the pattern to the sample image pixel-wise, carefully selects salient features in the pattern, so that it only matches the areas that convey information. This allows faster processing and improves robustness. |
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Typical performance figures | |
These performances are calculated finding a contrasted pattern 150x150 pixels large (interpolation enabled)
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Translation: |
3-sigma static repeatability: 1/75th of a pixel Linearity: 1/30th of a pixel |
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Rotation: |
3-sigma static repeatability: insignificant Linearity: 1/4 degree |
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Scaling: |
3-sigma static repeatability: insignificant Linearity: 1/2 percent |