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solino™ Image Acquisition

Image acquisition via multi LED dome illumination

The solino image acquisition is based on the correlation of a directed light source to the camera module. The primary goal is to be able to detect the minimum scattering pulse for a wide variety of objects. This is the only way to detect all defects, always and on all objects. However, this requires a very close-meshed arrangement of LEDs - implemented in the IM-solino 10x12 by means of 64 white light LEDs in a dome arrangement.

solino™ processes the image information of each lighting scenario and processes it with information about:

- the type of source
- the position and collimation
- the distance and color
- the stray light component 

Photometric stereo

'Photometric stereo' describes the acquisition of images taken from different angles of illumination.

does not differ here in image acquisition, but it does differ significantly in image processing. Instead of working with the individual image information, the scattering value per object point is calculated two-dimensionally and thus already evaluated internally during acquisition and recognized as an anomaly.

Although solinoTM images often look the same, the image information they contain is:

  • created by evaluating scattering information on the surface and not by images alone
  • repeatable and comprehensive, as the 64LED mesh dome illumination detects and stores all possible defects on all possible surfaces
  • object-specific adaptable, with which anomalies (defects, scratches, etc.) can be specifically represented
  • Perfect for classifications and can act as a data source with Deep Learning packages

solino™ correlates the light positions

Based on calibrated illumination angles and intensity profiles, the solino™ algorithm detects all surface anomalies. 

The decisive factor here is not the type, intensity or homogeneity of the light source used. The assignment of the image acquisition to the light identity is the most important part. In order to be able to achieve optimal results, special tools for system calibration have been developed accordingly.

 

 

 

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