Autologon on Windows-8

This is still possible

http://www.ghacks.net/2011/09/16/windows-8-how-to-automatically-log-on/

Does Scorpion Vision do sub-pixel measurement?

The clue about sub-pixel measurement is removing lens distortion. The Calibrator tool is the key for for this.  More information is found in the Scorpion Online Help.

All Scorpion tools work with reference and process image with subpixel accuracy the reference chain contains a Calibrator. This  gives the user the advantage of sub-pixel measurement without any special effort. Sub-pixel measurement is an extremely important feature in 2D and 3D machine vision system. With Scorpion you can increase the accuracy from 10 – 30 times taking advantage of the Calibrator tool.

The image below is a Image from a patented system from Tordivel Solar. The shadowline is located with 1 micrometer accuarcy with a camera pixel resolution of 40 micrometer.

High Precision Line Location

High Precision Line Location

The following rule of thumb can be used to indicate the tolerance of a width measurement : The accuarcy is equal to 1 pixel – the measurement standard deviation is 1/10 pixel or better. This means that with a field of view of 100 x 100 mm and a Sony XCD-700 camera measurements has a accuracy of 0.1 mm and a resolution better than 0.01 mm.

The image below is captured with 4.8 mm wide-angle lens. The grid has the following properties:

  • 15 rows and 22 columns
  • Dot spacing of 50 mm
  • Pixel resolution is 1,01 mm

The following corrections are performed with lens calibration:

  • The RMS position deviation is 0,3 mm or pixels
  • The maximum deviation is 0,8 mm
  • The edge points are moved 58,7 mm

The effect of using the calibrator is that the optical precision is 0,3 mm. Before correction the maximum error 2 * 58 mm = 116 mm. The maximum error is thus reduced with a factor close to 300.

Using the ImageResampler tool the following perfect image can be created:

See also the Calibrated Measurement example.

Where is polygon roi specially useful?

Scorpion’s advanced blob tools – Blob4, PolylineEdgeFaults2 – PLEF2 and PolygonMatch – has polygon rois (regions of interest).

For Blob4 this is very useful in assembly verification for detecting the presence of an object. Simply shape the blob to the shape of the object. In surface defects, applications having the possibility to cover every details of the part is very important. Have in mind that Blob’s roi handle rotation, scaling and perspective.

For PolygonMatch and Plef2 this is useful when you tailor the roi to the shape of the object. Another important issue is that you can select the features to use.

More about dynamic polygon ROIs.

Does Scorpion Support Color Processing?

The following tools works on directly on color images:

  • ColorMatcher – classify color based on reference images
  • ColorSegmenter – converts a color image based on hsi filter to bw image
  • ColorAnalyzer – a matrix of color matcher work on a square area to calculate an area with a specific color
  • SurfaceAnalyzer – ColorAnalyzer combined with TextureMatcher
  • ImageConverter – converts color images into bw images

All tools can in Scorpion can extract HSI – Hue, Saturation or Intensity plane from a color image and process this as a bw image.

What kind of tool classes are there in Scorpion?

Scorpion has the following classes of tools: Basic, Data, Edge, Reference, Geometry, Advanced, 3D Basic and 3D Advanced.

Do you have an educational licence?

There is an educational kit – the software licence price have 75% discount or 25% of the list price. The package is made for institutions that want to build a vision lab for their student. With this package the students will learn how to build the vision solutions of tomorrow.

More about pricelists.

How do I update/change my scorpion licence?

When Scorpion is running – follow this procedure:

1. Activate About
2. Press the licence button
3. Paste the new licence code
4. Press register and close the dialog

The licence can also be updated from the Profile Selection Dialog.