Earticle

초록

영어

A trapezoid is generated in screen when the projector is not perpendicular to the screen body in most situations. It is called the keystone distortion. In order to solve the keystone distortion of images, 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. This algorithm can be used in the chip of projector video processing to solve the keystone distortion.

목차

Abstract
 1. Introduction
 2. Isosceles Trapezoid Correction based on Edge Smooth
  2.1 The Space Positions Computation
  2.2 Interpolation Algorithm
 3. Simulation Results and Analysis
 4. Conclusion
 References

키워드

저자

• Yuan Ye [ School of Business Information, Shanghai University of International Business and Economics Shanghai, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Signal Processing, Image Processing and Pattern Recognition

• 간기

  격월간

• pISSN

  2005-4254

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605