Journal of Broadcast Engineering (방송공학회논문지)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
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Objective Video Quality Assessment for Stereoscopic Video

스테레오 비디오의 객관적 화질평가 모델 연구

  • Seo, Jung-Dong (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Kim, Dong-Hyun (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Sohn, Kwang-Hoon (Department of Electrical and Electronic Engineering, Yonsei University)
  • 서정동 (연세대학교 전기전자공학과) ;
  • 김동현 (연세대학교 전기전자공학과) ;
  • 손광훈 (연세대학교 전기전자공학과)
  • Published : 2009.03.30
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Abstract

Stereoscopic video delivers depth perception to users contrary to 2D video. Therefore, we need to develop a new video quality assessment model for stereoscopic video. In this paper, we propose a new method for objective assessment of stereoscopic video. The proposed method detects blocking artifacts and degradation in edge regions such as in conventional video quality assessment model. And it detects video quality difference between views using depth information for efficient quality prediction. We performed subjective assessment of stereoscopic video to check the performance of the proposed method, and we confirmed that the proposed algorithm is superior to the existing method in PSNR in respect to correlation with results of the subjective assessment.

스테레오 영상은 기존의 영상과는 달리 사용자에게 깊이감을 제공한다. 따라서 스테레오 영상을 평가하기 위해서는 새로운 화질평가 모델이 필요하다. 본 논문에서는 스테레오 영상을 위한 객관적 화질평가 방법을 제안한다. 제안된 화질평가 방법은 기존의 화질평가 모델을 기반으로 하여 블로킹 현상과 경계 영역에서의 열화 현상을 검출하였으며, 깊이 정보를 고려하여 시점 간 화질 격차 검출을 통해 알고리즘의 성능을 높이고자 하였다. 제안된 알고리즘의 성능 확인을 위해 스테레오 영상의 주관적 화질평가를 수행하였으며 주관적 화질평가와의 상관성 측면에서 제안 알고리즘이 PSNR에 비해 우수함을 확인하였다.

Keywords

References

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