| 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.
With an adjustable accuracy up to sub-pixel level, EasyFind
provides a very precise, rotation and scaling invariant,
alignment. It supports don? care areas. This feature
allows creating complex pattern shapes.
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.
Typical performance figures
These performances are calculated finding a contrasted
pattern 150x150 pixels large (interpolation enabled)
| Translation:
|
3-sigma static repeatability:
1/75th of a pixel
Linearity: 1/30th of a pixel |
 |
| Rotation:
|
3-sigma static repeatability:
insignificant
Linearity: 1/4 degree |
| Scaling: |
3-sigma static repeatability:
insignificant
Linearity: 1/2 percent |
|