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24 January 2011 Comparison of HDTV formats in a consumer environment
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Proceedings Volume 7867, Image Quality and System Performance VIII; 786716 (2011)
Event: IS&T/SPIE Electronic Imaging, 2011, San Francisco Airport, California, United States
High definition television (HDTV) has become quite common in many homes. Still, there are two different formats used currently in commercial broadcasting: one interlaced format, 1080i50/60, and one progressive format, 720p50/60.There have already been quite a few contributions comparing the visual quality of these formats subjectively under common standard conditions. These conditions, however, dont necessarily represent the viewing conditions in the real-life consumer environment. In this contribution we therefore decided to do a comparison under conditions more representative of the consumer environment with respect to display and viewing conditions. Furthermore, we decided to select not specially prepared test sequences, but real-life content and coding conditions. As we were not interested in the influence of the transmission errors, we captured the sequences directly in the play-out centre of a cable network provider in both 1080i50 and 720p50. Also we captured for comparison the same content in digital PAL-SDTV. We conducted extensive subjective tests with overall 25 test subjects and a modified SSIS method. The results show that both HDTV formats outperform SDTV significantly. Although 720p50 is perceived to have a better quality than 1080i50, this difference is not significant in a statistical sense. This supports the validity of previous contributions results, gained in standard conditions, also for the real-life consumer environment.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Christian Keimel, Arne Redl, and Klaus Diepold "Comparison of HDTV formats in a consumer environment", Proc. SPIE 7867, Image Quality and System Performance VIII, 786716 (24 January 2011);


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