Journal of the Institute of Convergence Signal Processing (융합신호처리학회논문지)

The Korea Institute of Convergence Signal Processing (한국융합신호처리학회)
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Quality Assessment and Analysis of Stereoscopic 3D Television Pictures

양안식 3D 텔레비전 영상의 화질 평가와 분석

  • Received : 2010.08.04
  • Accepted : 2010.10.29
  • Published : 2010.10.30
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Abstract

In this paper, we carried out quality assessment and analysis of stereoscopic 3D Television pictures according to ITU-R contribution and recommendation by rating scales using DSCQS (Double-Stimuli Continuous Quality Scale) method. The evaluation results show that overall quality and sharpness of stereoscopic pictures revealed almost no difference compared to cases of mono pictures as to natural outdoor scenes, graphic images, and indoor scenes (about 3.0 above ~ 4.0), but depth perception and sensation of reality of stereoscopic images exhibit better quality performance over mono images as indicated more than 4.0 out of 5.0 grade. Evaluation results should be considered as human factors such as disparity when shooting and/or editing 3DTV.

본 논문에서는 ITU-R 기고문과 권고안에 따라 양안 업체 영상에 대한 화질, 깊이감, 명료성, 실재감 항목을 모노 영상에 대비하여 DSCQS(Double-Stimuli Continuous Quality Scale) 방법을 사용하여 평정척도법에 의해 분석하였다. 평가 결과는 자연 실외 영상, 그래픽 영상, 실내 영상으로 구성된 평가 대상 영상에 대하여 전반적인 화질의 차나 명료성은 모노인 경우나 입체 영상인 경우나 별 차이를 나타내지 않았으나(대강 3.0 이상 -4.0 이하), 입체 영상의 깊이감 인지와 실재감에 대해서는 업체 영상인 경우 모두 5.0등급 중 4.0 등급 이상을 나타내어 깊이감 및 실재감 정보가 주는 인상이 매우 큼을 시사해준다. 양안 3DTV 촬영이나 편집시 시차 등 휴먼 팩터로 평가결과가 고려되어져야 할 것이다.

Keywords

Acknowledgement

Supported by : 한남대학교

References

  1. DVB, "DVB Commercial Requirements for DVB 3D-TV, " DVB BLuebook All, july 2010
  2. Hirokazu Yamanoue, Shinji Ide, Makoto Okui, Fumio Okano , Mineo Bitou, and Nobuyoshi Terashima, ''Parallax distribution for ease of viewing in stereoscopic HDTV ," NHK Laboratories Note No. 477, Mar. 2002
  3. A. Benoit, 1 Patrick Le Callet , Patrizio Campisi , and Romain Cousseaul, "Quality Assessment of Stereoscopic Images," EURASIP Journal on Image and Video Processing, Volume, 2008
  4. IWA3:ISO, International Workshop Agreement 3.
  5. 이형철, "3D 휴먼 팩터: 표준화와 안전 시청의 구현", 방송공학회지 15권 1호, pp. 110-115, 2010
  6. ITU-R SG1O/11, "Adjustment of video sequence to be used in conjunction with Recommendation ITU-R BT.500 ," ITU-R Doc. 1O-11Q/34-E, 8 May 1999
  7. ITU-R SG10/11, "Using the Double Stimulus Continuous-Quality Scale(DSCQS) Method To Evaluate Subjective Quality, Depth and Sharpness Of Stereoscopic Images Sequences," ITU-R Doc. 1O-11Q/37-E, 11 May 1999
  8. ITU-R SG10/11, "Proposed Modification Of The Preliminary Draft New Recommendation For Subjective Assessment of Stereoscopic Television Pictures," ITU-R Doc. 10-11Q/43-E, 17 May 1999
  9. ITU-R SG11, "Draft New Rec. ITU-R BT.[Doc. 11/119]: Subjective Assessment of Stereoscopic Television Pictures," ITU-R Doc. 11/119(Rev.1)-E, 29 June 1999
  10. ITU-R Rec. BT.1438, "Subjective assessment of stereoscopic television pictures," ITU-R Question 234/11 BT. 1438, 2000
  11. H. Yamanoue et. al., "Stereoscopic Test Materials, " Proc. SPIE, Vol. 12, No.4, pp. 19-24, 1998
  12. R.H. Horst, "A Demonstrator for Coding and Transmission of Stereoscopic Video Signals," Proc. of 4th European Workshop on Three Dimensional Television, pp.247-255, 1993
  13. S. Yano et. al., "Stereoscopic HDTV: Experimental System and Psychological Effects," SMPTE Journal, pp. 14-18, jan. 1991