OCR
476
FH/FZ5 Processing Item Function Reference Manual
When the Measurement Results Deviate or are Imprecise
You can use the following methods to improve measurement precision and stability.
When the measurement results are unstable
When a specific character is misrecognized
The result of date verification does not stabilize
Adjusting the Processing Speed of Measurements
You can use the following methods to improve the measurement processing speed.
When the processing speed is slow
Parameter to be adjusted Troubleshooting
Measurement
(Reference:
Measurement
Parameters (OCR) (p.459))
If the measurement region is large, excessive
ti
me may be required for measurement
processing.
Set as small a measurement region as possible.
The [String format] (character string format) setting or correct
string may not match the
characters being read.
Set a character format string that matches the chara
c
ters being read, and check the teaching
results.
You may be using “Fast” mode to measure a character string with a small interval between
characters.
Set the read mode to “Normal”.
The characters being measured may have a large height or a large width.
Set a maximum aspect ratio for “Max aspect ratio” in
“Det
ail setting” so that the ratio accords
with the length and width of the characters being read.
You can check the shape of the characters in the cut-out image display.
Parameter to be adjusted Troubleshooting
Dictionary Regist
(Reference: Dictionary
Registration (OCR)
(p.468))
The character being read may be similar to another char
acter in the dictionary in the processing
item.
Register the character bein
g re
ad in the dictionary.
Parameter to be adjusted Troubleshooting
Date parameter
(Reference: Date
Parameters (OCR) (p.469))
One-digit and two-digit formats may be mixed together in the printed month/day.
In the date settings, change the “Zero suppress” (10
’
s digit display) setting to match the actual
printed format.
Parameter to be adjusted Troubleshooting
Region setting
(Reference: Region
Setting (OCR) (p.458))
If the measurement region is large, excessive
ti
me may be required for measurement
processing.
Set as small a measurement region as possible.
Measurement
(Reference:
Measurement
Parameters (OCR) (p.459))
You may be using “Normal” mode to measure a character string with a large interval between
ch
aracters.
Set the read mode to “Fast”.
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