Can Scorpion handle multiple cameras?

One of the strongest points about Scorpion Vision Software is it’s capabilities to handle multiple cameras. To show how this is done we have made a demo profile showing a how easy four  cameras are handled and the image processing is divided into toolboxes.

Assembly Verification Demo

In this fine demo profile the following tasks are demonstrated:

  • Gauging
  • Color object counting
  • Indentification and location
    • dynamic reference systems and resampling
  • Object presence

Goto to Scorpion Online Help to download the demo profile.

Can we do color with Scorpion Vision?

Yes we can! The images is processed with the ColorAnalyzer tool. This tools classifies an area into a color class based on reference images.

Scorpion ColorAnalyzer Demo

In this demo the area of each fruit is measured and the fruits are counted.

More information and demo profile is found in Scorpion Online Help.

How to configure TemplateFinder3 to do OCR?

Reading Number Plate 7420

This section examines how the TemplateFinder3 – TF3 – is used to do OCR. It is based on the demo located in “Can Scorpion do OCR?”

The following steps are needed to configure TemplateFinder3:

1. Add templates for each character

The system is teached by adding template for each character you need to decode. Below the character 4 is shown.

OCR Template for character 4

Note the following:

  • Name is to “4” – this is done to tell Scorpion the symbol the template represents
  • Use subImage is activated with a threshold of 120 – this is doe to require that this area is present in the template

2. Setup Advanced

  1. Decimation is activated to speed up processing – normalised crosscorrelation – when comparing image with templates. The default value of the decimation is calculated by the system to 3. By experimentation 5 is found to be a good value. Five gives a template which for character for is 62 / 5 = 12 x 8 = 43 / 5.  A template with 96 pixels contains a lot of information.
  2. Rematch area is set to 67 – default is 100%. Is speed is needed 67 % will normally work ok. 100% is a safer value.
  3. Template Rotation is activated to be able to handle a slight angle on the characters. If there is no angle this might leads to a poorer system performance
  4. Template Scaling is activated. Two scales are performed 100% and 120%.
  5. Note: With a quad-core CPU there rotation and scaling is processed on the four core and has a low speed penalty
  6. The Match description is set to Template Name only
  7. The results are sorted by x-position – to be able to sort the characters into a result AllNames
  8. Result strings Template names are activated – This means that Allname result is produces and contains Number plate number.

Advanced Setup when using TemplateFinder3 for OCR

3. Setup Constraints

It might be needed to lower the accepted distance between matches. This is by default off. It this case this is set to 10.

OCR Contraints - Accept closer matches than default

4. Setup page

The following is configured on the Setup Page

  1. Search Area – conveniant to activate “Use whole picture” – this is slower that a selected region of interest
  2. If rotation is enabled “Optimized Rotation” will provide better and more consistent results
    • Note that when rotation is only – + 10 degrees this can also be ticked off – with 360 degrees rotation important to activate
  3. The Raw threshold is used in the first decimated search for correlation peaks
    • This value should not be lower than 60 – in this case 100 is a good value
  4. The Threshold is used in the second pass – values from 100 – 200 are typical
  5. Ignore matches with lower Std ratio is used to get rid of matches with another intensity level
    • This option can be disable to handle intensity variation between template and image
  6. Thread count Auto will select a proper thread count based on CPU configuration
    • Setting thread count to 1 – will show how fast TF3 is on a single-core

Setup Page TemplateFinder3

5. Use Allnames result

When properly configured the Allnames results contains the OCR value = 7420.

Tf3.Allnames result contains OCR value

More information “Can Scorpion do OCR?” . Download the sample and read more about TemplateFinder3  in Scorpion Online Help.

Can Scorpion do OCR?

Yes we can !

We have made a demo profile read number plates. It is based on the powerful Scorpion TemplateFinder3 tool. The decoding is done in less 100 ms on a standard pc.

Download the sample or read more about TemplateFinder3  in Scorpion Online Help.

More information in “How to configure TemplateFinder3 to do OCR?”

Cannot save or copy images in Windows 7

Running Scorpion under Windows 7 raises some issues that needs to be handled. People experience that they cannot

  • copy images to scorpion folder
  • save images
  • scorpion profile is not persistence

All of this has to do with the default security settings for Windows 7.  By default the user has only read and execute rights to the program files folder files.  Scorpion normally places images and profiles in these folders.

Fix to get Scorpion run like XP and Vista

The fix is to set Full Control right to the program files\tordivel as folder. You need to have adminstrator rights to do this.

Administrator right to shortcut can be useful.

Scorpion AutoLogon

It is easy to configure any windows PC to do AutoLogon with the Scorpion AutoLogon Component. It can be downloaded from here…

It is free to use with a Scorpion licence on your computer.

How can I get live images starting with the Default profile?

The default profile can be changed to take live images with the following steps:

  1. Press Service in the main toolbar – 911 is the password
  2. Activate Service in the minor toolbar3. Activate Camera
  3. Under Camera Settings edit the camera
  4. Select one of the cameras in the listbox
  5. Advanced is used to set the camera properties
  6. When closing the Camera dialog a green checkmark shall appear – this means that the camera is open – a red checkmark can mean that another application has opened the camera or simply an error
  7. Uncheck the Simulate option under Camera.Image Settings
  8. Press Snapshot in the main toolbar – the image shall appear in the right pane of Scorpion.
  9. Under Camera.Image Settings the name of the images can be changed using edit and setting the image properties.

I get an error message when starting the Label demo profile found on the Scorpion CD – what is the problem?

Scorpion is using an ActiveX component from Microsoft?s Internet Explorer. The message indicates that you need to modify IE?s security settings. These errors and/or warnings can be avoided by activating the following options in Internet Options / Security in Internet Explorer:

  • Download signed and unsigned ActiveX controls
  • Initialize and script ActiveX controls not marked as safe

If you do this a have a problem with warnings in Internet Explorer check this.