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Advances in Region-of-Interest Video and Image Processing
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Author(s): Dan Grois (Ben-Gurion University of the Negev, Israel)and Ofer Hadar (Ben-Gurion University of the Negev, Israel)
Copyright: 2013
Pages: 48
Source title:
Multimedia Networking and Coding
Source Author(s)/Editor(s): Reuben A. Farrugia (University of Malta, Malta)and Carl J. Debono (University of Malta, Malta)
DOI: 10.4018/978-1-4666-2660-7.ch004
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Abstract
The advent of cheaper and more powerful devices with the ability to play, create, and transmit video content has led to a dramatic increase in the multimedia content distribution on both wireline and wireless networks. Also, the reduction of cost of digital video cameras along with the development of user-generated video sites (e.g., iTunes™, YouTube™) stimulated a new user-generated video content sector and made unprecedented demands for high-quality and low-delay video communication. The Region-of-Interest (ROI) is a desirable feature in many future scalable video coding applications, such as mobile device applications, which have to be adapted to be displayed on a relatively small screen; thus, a mobile device user may wish to extract and track only a predefined ROI within the displayed video. At the same time, other users having a larger mobile device screen may wish to extract other ROIs to receive higher video stream resolution. Therefore, to fulfill these requirements, it would be beneficial to simultaneously transmit or store a video stream in a variety of ROIs, as well to enable efficiently tracking of the predefined Region-of-Interest. This chapter presents recent advances in Region-of-Interest video and image processing techniques for multimedia applications, while making a special emphasis on a scalable extension of the H.264/AVC standard. The detailed observations and conclusions, which are presented in this chapter, are supported by authors’ personal experience in this field, thereby presenting a variety of experimental results.
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