Characteristic Analysis of Image Scaler for Field-based Warping and Morphing

필드 기반 워핑 및 모핑을 위한 영상 스케일러의 특성 분석

  • Kwak, No-Yoon (Div. of Information and Communication Engineering, Cheonan University)
  • 곽노윤 (천안대학교 정보통신학부)
  • Published : 2005.11.01

Abstract

The objective of this paper is to propose the image interpolation method with pseudomedian filter for Field warping and morphing, and to evaluate and analyze its subjective image quality. The Field warping relatively gives rise to more computing overhead, but it can use the control line to control the warping result with more elaboration. Due to the working characteristics of the image warping and morphing process, various complex geometrical transformations occur and a image interpolation technique is needed to effectively process them. Of the various interpolation techniques, bilinear interpolation which shows above average performance is the most widely used. However, this technology has its limits in the reconstructivity of diagonal edges. The proposed interpolation method is to efficiently combine the bilinear interpolation and the pseudomedian filter0based interpolation which shows good performance in the reconstructivity of diagonal edges. According to the proposed interpolation method, we could get more natural warping and morphing results than other interpolation methods.

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