An accurate projector calibration method based on polynomial distortion representation.

ABSTRACT: In structure light measurement systems or 3D printing systems, the errors caused by optical distortion of a digital projector always affect the precision performance and cannot be ignored. Existing methods to calibrate the projection distortion rely on calibration plate and photogrammetry, so the calibration performance is largely affected by the quality of the plate and the imaging system. This paper proposes a new projector calibration approach that makes use of photodiodes to directly detect the light emitted from a digital projector. By analyzing the output sequence of the photoelectric module, the pixel coordinates can be accurately obtained by the curve fitting method. A polynomial distortion representation is employed to reduce the residuals of the traditional distortion representat

SUBMITTER: Liu M 

PROVIDER: S-EPMC4634452 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature