Radiometric alignment and vignetting calibration
Schlagworte: panoramic vision, radiometric calibration, vignetting, DDC: 004 (Data processing, computer science, computer systems)
AbstractThis paper describes a method to photometrically align registered and overlapping images which have been subject to vignetting (radial light falloff), exposure variations, white balance variation and nonlinear camera response. Applications include estimation of vignetting and camera response; vignetting and exposure compensation for image image mosaicing; and creation of high dynamic range mosaics. Compared to previous work white balance changes can be compensated and a computationally efficient algorithm is presented. The method is evaluated with synthetic and real images and is shown to produce better results than comparable methods.
Camera Calibration Methods for Computer Vision Systems - CCMVS 2007