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Loss Information Estimation and Image Resolution Enhancement Technique using Low

하위 레벨 보간을 이용한 손실 정보 추정과 영상 해상도 향상 기법

  • 김원희 (부경대학교 컴퓨터공학과) ;
  • 김종남 (부경대학교 컴퓨터공학과)
  • Published : 2009.11.28

Abstract

Image resolution enhancement algorithm is a basic technique for image enlargement and restoration. The main problem is the image quality degradation such as blurring or blocking effects. In this paper, we propose loss information estimation and image resolution enhancement method using low level interpolation method. In the proposed method, loss information is computed by downsampling -interpolation process of obtained low resolution image. We estimate loss information of high resolution image using interpolation of the computed loss information. Lastly, we add up interpolated high resolution image and the estimated loss information which is applied a weight factor. Our experiments obtained the average PSNR 1.4dB which is improved results better than conventional algorithm. Also subjective image quality is more clearness and distinctness. The proposed method may be helpful for various video applications which required improvement of image.

Keywords

Image Interpolation;Loss information Estimation;Resolution Enhancement;Low Level Interpolation

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