The improvements of network infrastructure and advances in video coding technology breeds a series of video applications including video telephony, VOD, high definition TV broadcasting, et al. In 2007, in order to make compressed video stream better adapt to various network environments and user terminals, a video coding standard SVC (Scalable Video Coding) was developed
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The improvements of network infrastructure and advances in video coding technology breeds a series of video applications including video telephony, VOD, high definition TV broadcasting, et al. In 2007, in order to make compressed video stream better adapt to various network environments and user terminals, a video coding standard SVC (Scalable Video Coding) was developed
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As the rapid development of Internet and digital multimedia technologies, how to protect the integrity and authenticity of digital products becomes an urgent problem. The traditional digital signature technology can effectively solve this problem, but digital signatures are normally stored in the header of multimedia information, with the development of software technology, the digital signature
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With the rapid development of information technology, digital image got a rapid expansion in the number and constant innovation in the application. Therefore, but it’s a looming problem that how to certificate the authenticity of the digital images and how to manage a large number of digital images. n image hash function maps an image
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With the development of the Internet and digital technology, the digital multimedia’s production, acquisition and transmission become more and more convenient. The widely using of edition software leads to that multimedia data can be easily tempered under low cost, and the authenticity and integrity of the speech files are often doubted. As an effectively complementary
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With the rapid development of the multimedia technology and network technology, the distribution and storage of digital multimedia information become more and more convenient. However, these conveniences also bring some disadvantages such as illegal copy and malicious tamper. Therefore, multimedia protection and authentication become more and more important. As a hotspot of multimedia information security,
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The rapid development and wide application of computer and network technology have made obtaining of digital multimedia products easier and faster while the invalid copy, forgery, tamper of digital multimedia products also have become more easier. Traditional encryption techniques can’t protect digital data anymore. Digital watermarking is proposed as another effective solution to protect both
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The rapid development and wide application of computer and network technology have made obtaining of digital multimedia products easier and faster while the invalid copy, forgery, tamper of digital multimedia products also have become more easier. Traditional encryption techniques can’t protect digital data anymore. Digital watermarking is proposed as another effective solution to protect both
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The rapid development and wide application of computer and network technology have made obtaining of digital multimedia products easier and faster while the invalid copy, forgery, tamper of digital multimedia products also have become more easier. Traditional encryption techniques can’t protect digital data anymore. Digital watermarking is proposed as another effective solution to protect both
(Read More…)
The rapid development and wide application of computer and network technology have made obtaining of digital multimedia products easier and faster while the invalid copy, forgery, tamper of digital multimedia products also have become more easier. Traditional encryption techniques can’t protect digital data anymore. Digital watermarking is proposed as another effective solution to protect both
(Read More…)
