Sharp IV-C35M User Manual page 129

Angle detection
You can detect the angle of an object by selecting 1P-SCH (1-point search) in the POSI-DEVIATION
item (measurement 0 to 4) .
(1) Angle detection by object shape
There are some objects whose angle cannot be detected, due to the shape of the object and the
compression level used for the gray scale search, as shown in the table below.
Object shape
- The information given above is true when the measurement conditions are as follows: the size of
the reference image to be registered is approximately 64 X 64, and the search size is approximately
100 X 100.
(2) Setting method
On the [MEAS CND] screen, select the "1P-SCH" or "1P-SCH+1P-EDGE" mode on the "
and then select the "
MEAS CND
1DTECT PRECISION STANDARD
2
3
1
4DTECT ANGL
2
5ANGLE UNIT
3
6
7
SET=SELECT A MENU FOR ESC=BACK SEL=CHNG IMG TRG=FUNC
1. Select the "1P-SCH" or "1P-SCH+1P-EDGE" mode on the "
2. Select the angle search range (±15˚, ±30˚, ±45˚, ±360˚) on the "
the angle search range, the slower the processing will be.
3. Sel.2..2.ect a rotation step size in degrees in "
relationship between the detection range (unit) of the rotation angle and the reference images to
be created is shown below:
R t o t a o i n a n g e l
D e e t t c o i n
U n t i
a r n g e
1
3
± 1 ˚ 5
5
1 0
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Angle detection
The angle cannot be detected.
The angle can be detected using a
compression level of 2 for the gray
scale search.
The angle can be detected.
DTECT ANGL" item.
SCREEN COND SAVE BLUE
STANDARD
0(0 7)
HIGH
1P-SCH+1P-EDGE
10
NO
1P-SCH
2P-SCH
1P-EDGE
2P-EDGE
1P-SCH+1P-EDGE
NO
R e e f
R t o t a
1 - , 7 1 - , 6 1 - , 5 1 - , 4 • • •
2 - , 1 1 - , 8 1 - , 5 1 - , 2 • • •
2 - , 5 2 - , 0 1 - , 5 1 - 0 - , , 5 , 0 +
1 - , 5 1 - , 0 , 0 + 1 , 0 + 1 5
4-13
Positional Deviation Measurement
Difficulty level
See page 4-3.
F C1 BRT
Note: When the rotation angle detection
is set other than "NO," the "HIGH
PRECISION" selection will be
invalid. (The detection precision is
fixed to the "STANDARD.")
MODE".
DTECT ANGL" item. The larger
ANGLE UNIT," using the up and down keys. The
e r n c e i m a g e c e r a e t d
o i n a n g e l
• • • • • + 1 , 4 + 1 , 5 + 1 , 6
• • • • • + 1 , 2 + 1 , 5 + 1 , 8
, 5 + 1 , 0 + 1 , 5 + 2 , 0 + 2 5
MODE"
Q u a n i t y t
+ 1 7 3 5
+ 2 1 1 5
1 1
5
4