Sharp IV-S20 User Manual

9-6
Shared settings
9
High precision
pixel detection
Pixel
Camera image
Standard pixel
detection
Point of detection Point of detection
Menu Description
qDETECT
ACCURACY
(detection
precision)
50CONTR.
PIXEL
(pixel
contraction)
· STANDARD (standard): Detection precision of 1 pixel unit
level
· HI-PRC (High precision): Detection precision of 1/10 pixel
unit level
· 1: Search the scanned image in groups of 2 pixels.
· 2: Search the scanned image in groups of 4 pixels.
· 3: Search the scanned image in groups of 8 pixels.
· To increase the speed of your search, you must take into account the settings listed
below.
1. When using the high precision setting, a smaller image should be used.
2. Reduce the size of the scanned image.
3. After considering what the maximum out of position dimension would be, make the
search area as small as possible.
4. If the size of the object is larger than 8 pixels then set the pixel contraction to 3.
Reference image
(Standard)
Search coordinates
use a 1 pixel level
of precision
(High precision)
Search coordinates use a
sub-pixel level of precision (1/10)
Degree of
match
Degree of
match
0
1
2
3
4
5
6
7
8
9
123456789
5CONTR. PIXEL (MDL 0) 1 2 3
0CONTR. PIXEL (MDL 1) 1 2 3
qDETECT ACCURACY STANDARD HI-PRC
5CONTR. PIXEL(MDL0) 1 2 3


qDETECT ACCURACY STANDARD HI-PRC
· Positional deviation measurement
(gray scale search)
Degree of match inspection for shape
and size (gray scale processing).
· Distance and angle measurement (gray
scale search)
Lead inspection (criteria search).
[2] Image settings
What follows is a description of how to use the image settings to control the measuring program.
(1) Gray scale processing (pixel contraction and detection precision)
[Settings menu screen]
[Measurement programs which are affected by these settings]
Positional deviation measurement (gray scale search: page 9-37)
Degree of match inspection for shape and size (gray scale processing: page 9-48)
Distance and angle measurement (gray scale search: page 9-60)
Lead inspection (criteria search: page 9-75)

Sharp IV-S20 Specifications

General

Brand	Sharp
Model	IV-S20
Category	Color Camera
Language	English