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Service-oriented mobile multimedia cooperative storing and delivery scheme based on opportunistic cloud coding and content-centric cloud compression
2016
EURASIP Journal on Wireless Communications and Networking
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Experimental results show that the proposed scheme can provide high peak signal-to-noise ratio (PSNR) for large scale video frame transmission and keep high consistency and robustness from subjective experience ...
In order to improve the quality of multimedia communication and mobile users, the work efficiency of the cloud platform, the service-oriented mobile multimedia cooperative storing, and the delivery scheme ...
The wide-area storage content-centric multimedia data fragmentation and video pixel block would be compressed. ...
doi:10.1186/s13638-016-0653-x
fatcat:55fub5qdorbjdefrj3hddk4j5e
Compressed domain spatial adaptation for H.264 video
2009
Proceedings of the seventeen ACM international conference on Multimedia - MM '09
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In this paper, we present a metadata-based compressed-domain spatial adaptation scheme for H.264/AVC video. ...
Here, we briefly present our adaptation scheme as well as evaluation results showing the effectiveness of the slicing strategies on the bitrate reduction and processing time. ...
For example, the Block Strategy or Wide Strategy is appropriate for a video with a large area of interest, whereas the o-Strategy may suffice for a video with a smaller area of interest, e.g. a newsreader ...
doi:10.1145/1631272.1631417
dblp:conf/mm/ShahabuddinINS09
fatcat:rmvjdqhpfjeffdvyrw6mmn7che
High Resolution Surveillance Video Compression Using JPEG2000 Compression of Random Variables
[chapter]
2013
Communications in Computer and Information Science
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This paper proposes a scheme for efficient compression of wide-area aerial video collectors (WAVC) data, based on background modeling and foreground detection using a Gaussian mixture at each pixel. ...
The resulting compression ratio is on the order of 16:1 with minimal loss of detail for moving objects. ...
In a final experiment, the compression performance is evaluated on ARGUS wide-area aerial video data taken from one of the focal planes. ...
doi:10.1007/978-3-642-38241-3_20
fatcat:kecy5cwgtjgp3clevuucvoad7q
Performance evaluation of a new efficient H.264 intraprediction scheme
2016
Turkish Journal of Electrical Engineering and Computer Sciences
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We evaluate the performance of this prediction scheme in terms of compression ratio, peak signal to noise ratio, and bit rate using seven video sequences. ...
Moreover, we analyze the power consumption, the delay, and FPGA area utilization of the implemented H.264 encoder after utilizing the new prediction scheme. ...
First, we explore the results of evaluating our prediction scheme in terms of compression ratio, PSNR, and bit rates. ...
doi:10.3906/elk-1312-250
fatcat:zhmnfbdosrbcbcxnoidyd75qvq
Practical Content-Adaptive Subsampling for Image and Video Compression
2006
Eighth IEEE International Symposium on Multimedia (ISM'06)
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Subsampling is a commonly used technique for modern image and video compression. Existing image and video standards such as JPEG, MPEG, and H.264 provide support for uniform chroma subsampling. ...
Experimental results show that the introduction of adaptive luma subsampling improves image quality both quantitatively and qualitatively when compared with the sole use of uniform chroma subsampling. ...
Acknowledgements This research has been sponsored in part by Epson Canada and the Natural Sciences and Engineering Research Council of Canada. ...
doi:10.1109/ism.2006.128
dblp:conf/ism/WongB06a
fatcat:jzeppburbbbgbmup5loavr5tji
Guest Editorial: Visual Communications and Image Processing IV
1993
Optical Engineering: The Journal of SPIE
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video processing, pattern recognition, and applications of digital image processing. ...
This paper reviews recent : extensions of the "uncertain" principle to the discrete case and develops optimum wave forms. ...
They demonstrate high performance for the proposed predictive VQ scheme. DPCM is a well-known technique widely used for speech and video coding because of the advantage of low system complexity. ...
doi:10.1117/12.158304
fatcat:teikk2o33fahdiehdkkhg73jyi
Selective Coding By Focus Of Attention: A New Tool To Achieve Vlbr Video Coding
1996
Zenodo
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Publication in the conference proceedings of EUSIPCO, Trieste, Italy, 1996 ...
This is the common framework of lossy compression shared by all image and video coding schemes. ...
Due to the simplicity of the motion-based segmentation obtained for a wide range of precision parameters and for usual VLBR video material, the bit rate of the motion analysis information fsegmentation ...
doi:10.5281/zenodo.36392
fatcat:ebjbkvrbijb3np2g2x5c4voxaa
Video steganography based on DCT psychovisual and object motion
2020
Bulletin of Electrical Engineering and Informatics
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The performance of the proposed video steganography is evaluated in terms of video quality and robustness against MPEG compression. ...
The scheme in [5] implements least significant of bits (LSB) for concealing the messages which are easy to be removed against compression methods. ...
The proposed scheme does not suitable for videos which have minimum object motion. The robustness evaluation of the proposed steganography scheme against video compression is listed in Table 2 . ...
doi:10.11591/eei.v9i3.1859
fatcat:k42ua4nesze3njlzw7wyqlvgwm
RObust Header Compression (ROHC) Performance for Multimedia Transmission over 3G/4G Wireless Networks
2005
Wireless personal communications
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In this paper we evaluate the real-time transmission of GSM encoded voice and H.26L encoded video with ROHC over a wireless link. ...
We find that for a wide range of error probabilities on the wireless link, ROHC roughly cuts the bandwidth required for the transmission of GSM encoded voice in half. ...
Acknowledgment We are grateful for interactions with Professor Thomas Sikora of the Technical University Berlin, Germany, throughout this work. ...
doi:10.1007/s11277-005-7733-2
fatcat:mzi4mtbbqbbz7itv2igcmrvofi
A Survey of H.264 AVC/SVC Encryption
2012
IEEE transactions on circuits and systems for video technology (Print)
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This survey summarizes the latest research results on video encryption with a special focus on applicability and on the most widely-deployed video format H.264 including its scalable extension SVC. ...
The survey intends to give researchers and practitioners an analytic and critical overview of the state-ofthe-art of video encryption narrowed down to its joint application with the H.264 standard suite ...
our evaluation criteria for a video encryption scheme. ...
doi:10.1109/tcsvt.2011.2162290
fatcat:bj6cpb2mwjg6tnpdyukgd6e2t4
VBR video transmission with isochronous and asynchronous transfer mode over wireless 1394
2004
Electronics & communications in Japan. Part 1, communications
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Various video compression coding schemes, such as MPEG (Motion Picture Experts Group) -2, are widely studied [2] . ...
Since high quality video has a huge amount of data, video compression coding scheme is needed for real-time video communication. ...
The five video stations equal to the maximum number of video stations when the peak rate of video data is 5.8Mbps in the conventional scheme. ...
doi:10.1002/ecja.10233
fatcat:ujomfedx2rapbbrslqu5vi2odq
Analytical distortion aware video coding for computer based video analysis
2017
2017 IEEE 19th International Workshop on Multimedia Signal Processing (MMSP)
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Meanwhile, as one of the main information sources of the applications, a huge amount of video data has been being generated by portable or mounted cameras in daily basis for varying purposes including ...
In view of the above considerations, this paper proposes a new rate-analytical-distortion optimization method (RADO) for video analysis. ...
In this context, many RDO techniques [13, 14] have been developed for modern video compression schemes. ...
doi:10.1109/mmsp.2017.8122253
dblp:conf/mmsp/LiuZMSDZ17
fatcat:cm7vtqbw2jc63ji2t6sas2twtu
Spatial and temporal pooling of image quality metrics for perceptual video quality assessment on packet loss streams
2010
2010 IEEE International Conference on Acoustics, Speech and Signal Processing
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This paper analyzes several image quality metrics and evaluates their applications using spatial and temporal pooling schemes in perceptual video quality assessment for video streams with packet losses ...
the video quality of the lossy streams. ...
In our evaluations, we have used the same Minkowski exponents and threshold levels as used for evaluation of temporal pooling schemes. ...
doi:10.1109/icassp.2010.5495313
dblp:conf/icassp/YouKP10
fatcat:6j5qol3ngncfvc5dnfn4tkwneu
Compression of high dynamic range video using the HEVC and H.264/AVC standards
2014
10th International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness
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In this study, we investigate the performance of the latest LDR video compression standard, HEVC, as well as the recent widely commercially used video compression standard, H.264/AVC, on HDR content. ...
Subjective evaluations of results on an HDR display show that viewers clearly prefer the videos coded via an HEVC-based encoder to the ones encoded using an H.264/AVC encoder. ...
[10] modified the MPEG 4 video compression standard for HDR video compression applications. They introduced a new luminance quantization scheme, which is optimized HDR content. ...
doi:10.1109/qshine.2014.6928652
dblp:conf/qshine/Banitalebi-DehkordiAPN14
fatcat:pzchbq4smbcyxihq3pyleapn2q
Subjective Assessment of Region of Interest-Aware Adaptive Multimedia Streaming Quality
2014
IEEE transactions on broadcasting
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Current multimedia adaptation schemes uniformly adjust the compression over the entire image area. ...
A comparative evaluation of both subjective and objective video quality test results is performed and demonstrate the benefit of using ROIAS for adaptive video quality delivery. ...
Considering this fact, the Region of Interest-based Adaptive multimedia Streaming scheme (ROIAS) [16] adjusts the compression rate distinctly for each image area within a frame according to the user ...
doi:10.1109/tbc.2013.2290238
fatcat:n3r6utyorbgx7eksr46324odkq
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