SIPLACE Vision Customer_en - 第81页
Component Shapes Optical Recognition and Evaluation of Leaded COs Specific Component Shapes S tudent Guide SIPLACE Vision (Customer) Edition 12/2008 EN Component Shapes 81 Recognition step Features found The purple cross…
Component Shapes
Specific Component Shapes Optical Recognition and Evaluation of Leaded COs
Student Guide SIPLACE Vision (Customer)
Component Shapes Edition 12/2008 EN
80
Presentation of lead filters
In the diagram, the evaluation points for
recognition of the gullwing contact surfaces are
marked at the expected lead positions.
Dark blue shows the four evaluation points for the
bright contact surface.
Yellow shows the three evaluation points for the
dark background.
Red and green shows the lead background and
the lead bend.
The contact surface is shown by: white/yellow
with a red/green outline.
Recognition step Filter result 1
The lead brightness is recognized by the filtering
process. The appropriate regions are outlined in
green (including the lead surfaces in the
background), indicating that they have been
recognized as lead candidates.
Increased illumination helps the system to
recognize the lead parts in the background row
below. This menu clearly demonstrates the effect
achieved by changing the illumination.
Component Shapes
Optical Recognition and Evaluation of Leaded COs Specific Component Shapes
Student Guide SIPLACE Vision (Customer)
Edition 12/2008 EN Component Shapes
81
Recognition step Features found
The purple crosses mark the surfaces of the lead
candidates.
In the next step, the distance between the lead
candidates is checked. Candidates which do not
fulfill this criterion will be singled out.
Recognition step Recognized model
The green crosses mark the contact surfaces of
the lead models.
The green tick shows the CO center for
placement, calculated from the lead positions. The
CO position is therefore determined and CS-
specific CO inspection can begin.
Component Shapes
Specific Component Shapes Optical Recognition and Evaluation of Leaded COs
Student Guide SIPLACE Vision (Customer)
Component Shapes Edition 12/2008 EN
82
Inspection step Lead position in group 1
In this step, the lead gray value profile (green) is
determined for the region inside the red group
window.
In this step, the lead gray value profile (green) is
determined for the region inside the red group
window.
Determination of the lead end edge is also
performed, although this will not be shown in the
diagram.
Recognition step Features OK
The lead outer edges are searched for in the blue
window.
The measured lead pitch is marked by the green
crosses at the lead ends.
This is marked on the lead outer edge line in the
analysis presentation.
The green tick shows the determined CO center.
Features which - for whatever reason - were not
recognized, are marked as such in the Features
faulty menu, (in red).
Result of centering with inspection