Title :
Calibration of Panorama Based on Linear CCD and Fisheye Lens
Author :
Hu, Shaoxing ; Feng, Xuyong
Author_Institution :
Sch. of Mech. Eng. & Autom., Beihang Univ., Beijing, China
Abstract :
Our team has developed the digital panoramic system named PanoExpert VI based on linear CCD and fisheye lens, which can acquire the high resolution panorama with the full surrounding in one scan. However, the image includes significant distortions. So, this paper describes the work how to correct the distortion. We research on calibration of fisheye lens´ barrel distortion and cylindrical deviations due to linear CCD on base of analysis of current distortion. Then for it´s unique, a new model must be established for panoramic image processing, and we bring forward the anti-plane view model based on hemispherical circle and cylindrical image surface. Experiments have proved the precision of the model and the panorama can be calibrated satisfactorily.
Keywords :
CCD image sensors; calibration; image resolution; lenses; optical distortion; PanoExpert VI; antiplane view model; barrel distortion; calibration; cylindrical deviation; cylindrical image surface; digital panoramic system; fisheye lens; hemispherical circle; high resolution panorama; image distortion; linear CCD; panoramic image processing; Calibration; Cameras; Charge coupled devices; Layout; Lenses; Mechanical engineering; Optical devices; Optical sensors; Portable computers; Weather forecasting;
Conference_Titel :
Image and Signal Processing, 2009. CISP '09. 2nd International Congress on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-4129-7
Electronic_ISBN :
978-1-4244-4131-0
DOI :
10.1109/CISP.2009.5304085
