A SUBJECTIVE EVALUATION OF 3D IPTV BROADCASTING IMPLEMENTATIONS CONSIDERING CODING AND TRANSMISSION DEGRADATION

Pierre Lebreton (1, 2) , Alexander Raake (2) , Marcus Barkowsky (1) , Patrick Le Callet (1)

1 IRCCyN - Institut de Recherche en Communications et en Cybernétique de Nantes
2 DT Lab - Deutsche Telekom Laboratories

This paper describes the results of a subjective test to assess current technology used for 3DTV broadcasting. As a first aspect, the performance of the currently deployed coding schemes was compared to state of the art algorithms. Our results show that downsampling and packing 3D stereoscopic videos according to the so called Side-By-Side format gives the highest perceived quality for a given bitrate. The second aspect of the study was to investigate how common 2D error concealment algorithms perform in case of 3D, and how their 3D-related performance compares with the 2D case. The results provide information on whether binocular suppression or binocular rivalries play the most important role for 3D video quality under transmission error. The results indicate that binocular rivalries and related visual discomfort are the dominant factors. Another aspect of the paper is a comparison of the test results with results from different labs to evaluate the repeatability of a subjective experiment in the 3D case, and to compare the employed test methodologies. Here, the study shows the variation between observers when they are rating visual discomfort and illustrates the difficulty to evaluate this new dimension.

Keywords: 3D Video Quality; Packet losses; Coding; Subjective testing; Visual discomfort

Domains: Signal and Image Processing; Signal and Image processing

Pierre Lebreton, Alexander Raake, Marcus Barkowsky, Patrick Le Callet. A SUBJECTIVE EVALUATION OF 3D IPTV BROADCASTING IMPLEMENTATIONS CONSIDERING CODING AND TRANSMISSION DEGRADATION. IEEE International Symposium on Multimedia 2011 (ISM), Dec 2011, United States. pp. 506-511, ⟨10.1109/ISM.2011.89⟩. ⟨hal-00670230⟩