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Difference between revisions of "Calibration"

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===Things to calibrate===
 
===Things to calibrate===
 
*nonlinear effects for both cameras:
 
*nonlinear effects for both cameras:
**radial distortion  [[wikipedia:Distortion (optics)#Radial distortion|On Wikipedia]]
+
**radial distortion   
 
**tangential distortion (sensor chip not parallel)
 
**tangential distortion (sensor chip not parallel)
 
**rotational errors (sensor rotated on image plane)
 
**rotational errors (sensor rotated on image plane)
 
*Intrinsics matrix for both: Video camera & Depth Camera
 
*Intrinsics matrix for both: Video camera & Depth Camera
 
*Extrinsics matrix for both: Video camera & Depth Camera
 
*Extrinsics matrix for both: Video camera & Depth Camera
*Registration of both cameras (Registration as meant in [http://www.jvrb.org/archiv/2437/ This Article], please add a nicer description, if you know one)
+
*Registration of both cameras (Registration as meant in This Article, please add a nicer description, if you know one)
 
**Rotational tolerances
 
**Rotational tolerances
 
**?
 
**?
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* Which change minor (and can possibly be set constant)?
 
* Which change minor (and can possibly be set constant)?
 
* Are routines to calculate parameters needed, or could a seperate application be used (based on OpenCV, for example)
 
* Are routines to calculate parameters needed, or could a seperate application be used (based on OpenCV, for example)
*
+
 
  
 
===Links===
 
===Links===

Revision as of 09:42, 6 December 2012

This page shall help to define a calibration procedure. Please add your knowledge.

Things to calibrate

  • nonlinear effects for both cameras:
    • radial distortion
    • tangential distortion (sensor chip not parallel)
    • rotational errors (sensor rotated on image plane)
  • Intrinsics matrix for both: Video camera & Depth Camera
  • Extrinsics matrix for both: Video camera & Depth Camera
  • Registration of both cameras (Registration as meant in This Article, please add a nicer description, if you know one)
    • Rotational tolerances
    • ?

Questions to answer

  • Which parameters change much between different devices?
  • Which change minor (and can possibly be set constant)?
  • Are routines to calculate parameters needed, or could a seperate application be used (based on OpenCV, for example)


Links