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ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM), Volume 7 Issue 3, August 2011

Editorial notice
Ralf Steinmetz
Article No.: 13
DOI: 10.1145/2000486.2000487

Video quality for face detection, recognition, and tracking
Pavel Korshunov, Wei Tsang Ooi
Article No.: 14
DOI: 10.1145/2000486.2000488

Many distributed multimedia applications rely on video analysis algorithms for automated video and image processing. Little is known, however, about the minimum video quality required to ensure an accurate performance of these algorithms. In an...

Protecting the content integrity of digital imagery with fidelity preservation
Pei-Yu Lin, Jung-San Lee, Chin-Chen Chang
Article No.: 15
DOI: 10.1145/2000486.2000489

Fragile watermarking is applied to protect the content integrity of digital images. The main concerns related to watermarking include retaining the quality of the watermarked image and retaining the ability to detect whether any manipulation has...

Selecting vantage objects for similarity indexing
Reinier H. Van Leuken, Remco C. Veltkamp
Article No.: 16
DOI: 10.1145/2000486.2000490

Indexing has become a key element in the pipeline of a multimedia retrieval system, due to continuous increases in database size, data complexity, and complexity of similarity measures. The primary goal of any indexing algorithm is to overcome...

Supporting region-of-interest cropping through constrained compression
Wu-Chi Feng, Thanh Dang, John Kassebaum, Tim Bauman
Article No.: 17
DOI: 10.1145/2000486.2000491

The ability to create super high-resolution video is becoming relative easy to do either through a single high-definition video camera or panoramic video that automatically stitches multiple views together. As an example of the former, the motion...

Derivative-based audio steganalysis
Qingzhong Liu, Andrew H. Sung, Mengyu Qiao
Article No.: 18
DOI: 10.1145/2000486.2000492

This article presents a second-order derivative-based audio steganalysis. First, Mel-cepstrum coefficients and Markov transition features from the second-order derivative of the audio signal are extracted; a support vector machine is then applied...

Game-on-demand:: An online game engine based on geometry streaming
Frederick W. B. Li, Rynson W. H. Lau, Danny Kilis, Lewis W. F. Li
Article No.: 19
DOI: 10.1145/2000486.2000493

In recent years, online gaming has become very popular. In contrast to stand-alone games, online games tend to be large-scale and typically support interactions among users. However, due to the high network latency of the Internet, smooth...