SAL3D > Metric Calibration tool

The AQSENSE SAL3D Metric Calibration Tool provides a straightforward, easy procedure for obtaining true XYZ metric coordinates from 2.5D rangemap data coming from any standard laser triangulation system.

 
Features:
  1. •  Extremely easy to use
  2. •  Very Accurate conversion 2.5D→ 3D→2.5D
  3. •  Totally removes perperctive distortion effects(1)
  4. •  Average theoretical 3D error:1e-7 μm(2)
  5. •  Average real 3D error: 50 μm(3)
(1) Perspective introduces object's size distortion with the distance to the camera. This tool does not correct lens distortion, such as radial distortion.
(2) Evaluated with synthetic data. Only the mathematical method is evaluated here
(3) Real situation, using AQSENSE Peak Detector Tool, at 30º camera-laser angle, F.O.V. = 130mm. Sensor noise, laser speckle, depth of focus, etc... influence this result.

Obtaining metric coordinates

Fig. Example of 3D coordinates obtained from a range map

Just 3 Easy Steps:
  1. 1.-  Obtain a good range map by scanning the calibration pattern.
  2. 2.-  Specify the calibration pattern point coordinates, according to the design.
  3. 3.-  The calibration parameters are obtained.

See calibration pattern configuration examples . 

Please, refer to SAL3D for O.S. and compiler compatibility 

guardar.gifDownload pdf version

 

 

Parc Científic i Tecnològic de la UdG · Edifici Jaume Casademont, Porta A, Despatx 23
C/ Pic de Peguera, 15 · 17003 Girona - Spain · Phone/Fax : +34 972 183 215

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