Title :
A keystone-free hand-held mobile projection system
Author :
Li, Zhaorong ; Wong, Kin-Hong ; Gong, Yibo ; Lee, Kai-Ki ; Chang, Michael Ming-Yuen
Author_Institution :
Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Hong Kong, China
Abstract :
In this paper, we propose a hand-held mobile projection system that can freely project keystone free content on a general flat surface without any markings. Such a projection system can give the user great freedom of control of the display such as viewing angle and distance without suffering from distortion. We attach a camera to the projector to form a stereo pair. The correction of the display content is then achieved by rectifying the projection region of interest into a rectangular region and pre-warping the display content. Experimental results show that our system can continuously project distortion free content in real time with reasonable precision.
Keywords :
cameras; display devices; optical projectors; stereo image processing; camera; display content; flat surface; keystone free handheld mobile projection system; prewarping content; project distortion; rectangular region; stereo pair; Calibration; Cameras; Mobile communication; Pixel; Real time systems; Three dimensional displays; Tracking; Projector; calibration; keystone correction; mobile projection;
Conference_Titel :
Image Processing (ICIP), 2010 17th IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-7992-4
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2010.5652785
