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Projector-camera system. Application of computer vision. A Projector-Camera system. Projector-Camera calibration. Calibration method to find G p = (camera coordinate system to projector to transformation).

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Projector camera system

Projector-camera system

Application of computer vision

projector-camera v3a


A projector camera system
A Projector-Camera system

projector-camera v3a


Projector camera calibration
Projector-Camera calibration

projector-camera v3a


Calibration method to find g p camera coordinate system to projector to transformation
Calibration method to find Gp=(camera coordinate system to projector to transformation)

  • Project a point xp in projector image to the projection frustum and the calibrated camera captures the handheld moving plane (4 corners) and the projected point Xc.

  • The camera coordinate system is the world coord. Sys.

  • The 4 corners define the handheld plane for display ().

  • The captured image point of Xc is xc’, which defines the vector VXc from the camera center to the point Xc.

  • Intersection between  and VXc is Xc, hence Xc can be found.

  • xp=Gp *Xc, so if enough points (>=6, typically 40) correspondences between Xc and xp are given Gp can be found.

projector-camera v3a


Our setup
Our setup

projector-camera v3a


Calibration procedure
Calibration procedure

projector-camera v3a


Quadrangle tracking
Quadrangle tracking

projector-camera v3a


Experiments
Experiments

projector-camera v3a


Projection result
Projection result

projector-camera v3a


Results
Results

projector-camera v3a


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