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ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM), Volume 6 Issue 1, February 2010

Server selection in large-scale video-on-demand systems
Niklas Carlsson, Derek L. Eager
Article No.: 1
DOI: 10.1145/1671954.1671955

Video on demand, particularly with user-generated content, is emerging as one of the most bandwidth-intensive applications on the Internet. Owing to content control and other issues, some video-on-demand systems attempt to prevent downloading and...

Blind robust watermarking of 3d motion data
Parag Agarwal, Balakrishnan Prabhakaran
Article No.: 2
DOI: 10.1145/1671954.1671956

The article addresses the problem of copyright protection for 3D motion-captured data by designing a robust blind watermarking mechanism. The mechanism segments motion capture data and identifies clusters of 3D points per segment. A watermark can...

DSI: A model for distributed multimedia semantic indexing and content integration
Bo Yang
Article No.: 3
DOI: 10.1145/1671954.1671957

Considerable research has been done on the content-based multimedia delivery and access in distributed data repositories. As noted in the literature, there is always a trade-off between multimedia quality and access speed. In addition, the overall...

Effect of compressed offline foveated video on viewing behavior and subjective quality
Marcus Nyström, Kenneth Holmqvist
Article No.: 4
DOI: 10.1145/1671954.1671958

Offline foveation is a technique to improve the compression efficiency of digitized video. The general idea behind offline foveation is to blur video regions where no or a small number of previewers look without decreasing the subjective quality...

Real-time H.264 video encoding in software with fast mode decision and dynamic complexity control
Yuri V. Ivanov, C. J. Bleakley
Article No.: 5
DOI: 10.1145/1671954.1671959

This article presents a novel real-time algorithm for reducing and dynamically controlling the computational complexity of an H.264 video encoder implemented in software. A fast mode decision algorithm, based on a Pareto-optimal macroblock...

Authentication schemes for multimedia streams: Quantitative analysis and comparison
Mohamed Hefeeda, Kianoosh Mokhtarian
Article No.: 6
DOI: 10.1145/1671954.1671960

With the rapid increase in the demand for multimedia services, securing the delivery of multimedia content has become an important issue. Accordingly, the problem of multimedia stream authentication has received considerable attention by previous...