Download Denso WINCAPS III Specifications

Chapter 9 Operating Vision Manager
- Search -
Search refers to searching for a point of concordance, by moving the standard image data
(search model), registered in advance, within the range for search (within the window range)
of the object to be measured. (Refer to Fig. 1) With the µVision board, the standard image
data is called “search model” which consists of image data and reference coordinates (OX,
OY). (Refer to Fig. 2) Numeral to express the degree of concordance between the search
model and measure object image is called “concordance”. If acquired concordance is greater
than the specified value, coordinates for the point of concordance between the search model
and the measure object image can be obtained. The minimum unit for coordinate detection
accuracy for pixel is one pixel. With sub-pixel, measuring result can be obtained with an
accuracy of under one pixel. If measured by sub-pixel, the measuring time will be longer than
the measurement by pixel.
Fig. 2
Fig. 1
Search
OY
Image data
Search model
OX
Window
Note: Q: Only the rectangular window can be selected (angle = 0).
R: If the Robot Controller is not capable of angle measurement,
you cannot set any data at Start Angle or End Angle.
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