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What is GOP

Handbook of Research on Wireless Security
The group of pictures (GOP) is a group of successive pictures within a MPEG-coded film or video stream. A GOP consists of all the pictures in successive two GOP headers.
Published in Chapter:
A Novel Secure Video Surveillance System Over Wireless Ad Hoc Networks
Hao Yin (Tsinghua University, China), Chuang Lin (Tsinghua University, China), Zhijia Chen (Tsinghua University, China), and Geyong Min (University of Bradford, UK)
Copyright: © 2008 |Pages: 16
DOI: 10.4018/978-1-59904-899-4.ch032
The integration of wireless communication and embedded video systems is a demanding and interesting topic which has attracted significant research efforts from the community of telecommunication. This chapter discusses the challenging issues in wireless video surveillance and presents the detailed design for a novel highly-secure video surveillance system over ad hoc wireless networks. To this end, we explore the state-of-the-art cross domains of wireless communication, video processing, embedded systems, and security. Moreover, a new media-dependent video encryption scheme, including a reliable data embedding technique and real-time video encryption algorithm, is proposed and implemented to enable the system to work properly and efficiently in an open and insecure wireless environment. Extensive experiments are conducted to demonstrate the advantages of the new systems, including high security guarantee and robustness. The chapter would serve as a good reference for solving the challenging issues in wireless multimedia and bring new insights on the interaction of different technologies within the cross application domain.
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