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멀티미디어 응용을 위한 주관적 동영상 품질평가 방법의 비교분석

Comparison of subjective video quality assessment methods for multimedia applications

  • 최지환 (연세대학교 전자전기공학과) ;
  • 정태욱 (연세대학교 전자전기공학과) ;
  • 최현수 (연세대학교 전자전기공학과) ;
  • 이은재 (삼성전자(주)) ;
  • 이상욱 (연세대학교 전자전기공학과) ;
  • 이철희 (연세대학교 전자전기공학과)
  • Choe, Ji-Hwan (Dept. of Electrical and Electronic Engineering, Yonsei University) ;
  • Jeong, Tae-Uk (Dept. of Electrical and Electronic Engineering, Yonsei University) ;
  • Choi, Hyun-Soo (Dept. of Electrical and Electronic Engineering, Yonsei University) ;
  • Lee, Eun-Jae (Samsung Electronics Co., Ltd.) ;
  • Lee, Sang-Wook (Dept. of Electrical and Electronic Engineering, Yonsei University) ;
  • Lee, Chul-Hee (Dept. of Electrical and Electronic Engineering, Yonsei University)
  • 발행 : 2007.03.29

초록

본 논문에서는 멀티미디어 응용을 위한 동영상의 주관적 품질평가방법으로 널리 사용되는 DSCQS(Double Stimulus Continuous Quality Scale method) 및 ACR(Absolute Category Rating)방법을 비교분석하였다. 두 가지 방법을 비교 실험한 결과 MOS (Mean Opinion Score) 값의 경우 DSCQS와 ACR의 평가치가 매우 높은 상관도를 보이는 것을 확인할 수 있었다. 또한 DMOS (Difference Mean Opinion Score)값의 경우에는 DSCQS와 ACR 방법이 MOS 값의 경우보다 약간 낮은 정도의 상관도를 보였다. 이 같은 결과는 ACR 방식이 DSCQS에 필적하는 성능을 제공하며 많은 수의 영상을 평가 할 수 있는 효율적인 주관적 품질평가 방법임을 보여주고 있다.

In this paper, we compared two subjective assessment methods DSCQS(Double Stimulus Continuous Quality Scale method) and ACR(Absolute Category Rating). These methods are widely used in order to evaluate video quality for multimedia application. We performed subjective quality tests using DSCQS and ACR methods. The subjective scores obtained by the DSCQS and ACR methods show that these methods are highly correlated in terms of MOS(Mean Opinion Score) and have slightly lower correlation in terms of DMOS(Difference Mean Opinion Score). The results indicate that ACR method is an effective subjective quality assessment method, which shows compatible performance with DSCQS method and can evaluate a larger number of video sequences.

키워드

참고문헌

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피인용 문헌

  1. Competition for attentional resources between low spatial frequency content of emotional images and a foreground task in early visual cortex vol.54, pp.3, 2016, https://doi.org/10.1111/psyp.12792