Hardware manual

Impact Reference Guide Character Contour Match
3-161 Datalogic Automation Inc.
Set up the Character Contour Match tool
Initial Tool Setup
1. Move and size the Train Character Rectangles so they fits closely around all the characters you want to
inspect. Only the characters to be verified should be inside the ROI, try to avoid including parts of the
background.
2. Move and size the Search Character Rectangles around the areas you want to search for the Train Char-
acters.
3. Select the remaining input parameters, based on the input characters’ characteristics. Select Add New
Train Mode.
Train Mode Determines what happens to trained characters in the Verification
Library
Add New: Appends trained characters to the Verification Library if they
are not already recognized to be there
Add New and Replace: Performs the Add New and removes characters
from the existing Library which model the same letter but are not recog-
nized as such in the trained image
Delete Library and Add: Removes all characters from the current Verifi-
cation Library and trains the new string as the Library
Enable Found Mod-
els
If True, the matching polygonal models are displayed in the image win-
dow. The model display speed is faster when this is False.
Verification Library The set of bitmaps and contours that define the characters that have
been trained
Output Name What it is
Success If True, all the characters in the Verification String were verified with
Defect Sizes less than the Max Defect Size
Defect Sizes A list of the total size difference between each character that was verified
and its best matched trained model. For example, if "TEST" is the verifi-
cation string, then the match error for the second letter is the difference
between the second letter in the string and the best matched “E” in the
Verification Library.
Character Bounds
List
This list of rectangles was replaced by a list of rectangles which give the
character bounds. This "Character Bounds List" allows the user to easily
determine the width and height of verified characters.A list of the posi-
tions of rectangles around verified characters within the Train Character
Rectangles. Trained boxes where they are found on the verification
image.
Character Success A list indicating the verification success for each character in the Verifica-
tion List
Found Models A list of the character model shapes found during verification.
Trained Models A list of the character model shapes found during training. This list is
emptied when the tool runs.
Input Name What it is