tailieunhanh - Báo cáo hóa học: " Research Article Subjective Quality Assessment of H.264/AVC Video Streaming with Packet Losses"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Subjective Quality Assessment of Video Streaming with Packet Losses | Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2011 Article ID 190431 12 pages doi 2011 190431 Research Article Subjective Quality Assessment of AVC Video Streaming with Packet Losses Francesca De Simone 1 Matteo Naccari 2 Marco Tagliasacchi 3 Frederic Dufaux 4 Stefano Tubaro 3 and Touradj Ebrahimi EURASIP Member 1 1Multimedia Signal Processing Group MMSPG Ecole Polytechnique Federale de Lausanne EPFL 1015 Lausanne Switzerland 2Instituto de Telecomunicacões Instituto Superior Tecnico 1049-011 Lisboa Portugal 3Dipartimento di Elettronica e Informazione Politecnico di Milano PoliMI 20133 Milano Italy 4 Telecom ParisTech 75634 Paris Cedex 13 France Correspondence should be addressed to Francesca De Simone Received 15 November 2010 Accepted 18 January 2011 Academic Editor Vittorio Baroncini Copyright 2011 Francesca De Simone et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Research in the field of video quality assessment relies on the availability of subjective scores collected by means of experiments in which groups of people are asked to rate the quality of video sequences. The availability of subjective scores is fundamental to enable validation and comparative benchmarking of the objective algorithms that try to predict human perception of video quality by automatically analyzing the video sequences in a way to support reproducible and reliable research results. In this paper a publicly available database of subjective quality scores and corrupted video sequences is described. The scores refer to 156 sequences at CIF and 4CIF spatial resolutions encoded with AVC and corrupted by simulating the transmission over an error-prone network. The subjective evaluation has been performed by 40 subjects at the premises of two