Browse > Article

Design of a Motion Adaptive LCD controller for image enlargement  

이승준 (한양대학교 전자전기제어계측공학과)
권병헌 (유한대학 정보통신과)
최명렬 (한양대학교 전자전기제어계측공학과)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.40, no.3, 2003 , pp. 109-116 More about this Journal
Abstract
In this paper. we Propose an UXGA class LCD controller for controlling the LCD panel. The proposed controller supports the full screen display using GCD between input and output resolutions. The proposed LCD controller includes the motion detector based on median filter which can detect the motion of input image for the enhancement of a image quality. Also, it divides the motion into 3 stages such as still, semi-moving and moving, and uses the different interpolation algorithms according to the degree of motion. In order to evaluate the performance of the proposed interpolation algorithm, we use PSNR method and compare the conventional algorithm by using computer simulation. For the proposed motion detection algorithm, we use a visual verification and the estimation of pixel changes. The proposed LCD controller has been designed and verified by VHDL. It has been synthesized using Xilinx VirtexE FPGA.
Keywords
Interpolation; LCD; Image Scaler;
Citations & Related Records
연도 인용수 순위
  • Reference
1 H. Rabtanen, 'Color Video Signal Processing with Median Filter', IEEE Trans. on Consumer Electronics, Vol. 38, No.3, pp. 157-161, Aug. 1992   DOI   ScienceOn
2 D. Nquyen, and E. Dubois, 'Spatio-Temporal Adaptive Interlaced to Progressive Conversion', International Workshop on HDTV92 Proceeding Vol. 2, Nov. 1992
3 R. Crane, A simplified approach to image processing, Prentice Hall, USA, 1994
4 C. H. Choi, B. H. Kwon, and M. R. Choi, 'Implementation of a Universal Controller for a-Si TFT LCD of SXGA class', SID99, San Jose, USA, pp. 500-503, May. 1999
5 이승준, 권병헌, 최명렬 '에지 검출을 이용한 음직임 검출기 설계', 한국정보처리학회 춘계학술대회, pp. 1229-1232, 2001. 4   과학기술학회마을
6 이승준, 권병헌, 최명렬, 'Design of an image scaler using motion detector', AP-SoC2002, pp. 137-141, 2002, 11
7 이승준, 권병헌, 최명렬, 'Design of an effective motion detector using edge information', 한국액정토론회, pp. 7-10, 2001. 7
8 R. S. Prodan, 'Multidimensional Digital Signal Processing for Television Scan Conversion', Philips J. Res. 41, pp. 576-663, 1986
9 H. C. Kim, B. H. Kwon, and M. R. Choi, 'An image interpolator with image improvement for LCD controller', IEEE Trans. on Consumer Electronics, Vol. 47, No. 2, pp. 263-271, May. 2001   DOI   ScienceOn
10 A. M. Tekalp, Digital Video Processing, McGraw Hill, USA, 1995