vicorob research group at the universitat de girona vicorob visió per computador i robòtica...
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VICOROBResearch group at theUniversitat de Girona
VICOROBVIsió per COmputador i ROBòtica
(Computer Vision and Robotics Group)
Institut d'Informàtica i Aplicacions Departament d'Electrònica, Informàtica i Automàtica
Universitat de Girona
FANIN Inspection System
VICOROB grup de recerca de la UdG 2
Microscope Adaptation
System components:
●NIKON MM40●Linear Camera 4096 pixel res.●Parker MX80L high precision motorized linear stages
●NIKON MM40●Linear Camera 4096 pixel res.●Parker MX80L high precision motorized linear stages
VICOROB grup de recerca de la UdG 3
Prototype Development (i)Reference self-positioning
The scanning system is able of
self-positioning for a two-reference
alignment.
The scanning system is able of
self-positioning for a two-reference
alignment.
Test structuresused as aligment
reference
Controller GUI
VICOROB grup de recerca de la UdG 4
Prototype Development (ii)Gross Reference Detection
After self-positioning, the system is able to refine
the search by linear image superposition to
make a narrower window
After self-positioning, the system is able to refine
the search by linear image superposition to
make a narrower window
A zoom on thetest structure
A zoom on thetest structure
VICOROB grup de recerca de la UdG 5
Prototype Development (iii)Fine Reference Detection
The test structure is segmented and its
centroid is computed at subpixel accuracy
The test structure is segmented and its
centroid is computed at subpixel accuracy
This procedure repeats for the opposite test
structure and the crystal orientation is computed
This procedure repeats for the opposite test
structure and the crystal orientation is computed
The crystal position and orientation are
transformed to meet the crystal CAD design
The crystal position and orientation are
transformed to meet the crystal CAD design
Test structuresegmentation
Test structuresegmentation
Subpixel accuracyCentroid computation
Subpixel accuracyCentroid computation
VICOROB grup de recerca de la UdG 6
Prototype Development (iv)Open circuit detection
● Open circuit● Short Circuit● Ripped tracks
● Open circuit● Short Circuit● Ripped tracks
Detection examplesDetection examples