Title :
A New Keystone Correction Algorithm of the Projector
Author_Institution :
Sch. of Bus. Inf. Manage., Shanghai Univ. of Int. Bus. & Econ., Shanghai, China
Abstract :
In order to solve the keystone distortion of images when a projector is used. A new algorithm transforming pixel spatial position using edge preserving interpolation is proposed to implement projector keystone correction. First, the scaling factors, the start point positions and the end point positions are calculated according to different rows, then the edge preserving interpolation algorithm are used according to the space positions. Experimental results demonstrate that the algorithm can not only implement keystone correction, but also preserves the edge effectively. It can be used in the chip of projector video processing.
Keywords :
distortion; edge detection; interpolation; optical projectors; edge preserving interpolation; end point positions; image keystone distortion; keystone correction algorithm; pixel spatial position transformation; projector; projector video processing chip; scaling factors; start point positions; Charge carrier processes; Educational institutions; Image edge detection; Image resolution; Interpolation; Optical distortion; Simulation; edge preserving; interpolation algorithm; keystone correction; projector;
Conference_Titel :
Management of e-Commerce and e-Government (ICMeCG), 2014 International Conference on
DOI :
10.1109/ICMeCG.2014.50
