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Video Compression Technology Have you ever heard of alien acronyms like MPEG-1, MPEG-2 or H.263? If you are not familiar with these terms, you will be surprised to learn that they are used quite frequently in our daily life. For example, MPEG-1 is used to compress video in VCD; MPEG-2, the Grammy award standard, is used in DVD and H.263 is used for visual communication, commonly found in personal computers for connecting a USB video camera. If you think those are confusing enough, we have many more - such as MPEG-4, MPEG-7 and MPEG-21. Each audio and visual coding standard is used in different multimedia applications. Each new video coding standard aims to squeeze more data and yet improve the video quality. So what is the most promising and hottest video coding technology right now? H.264, a.k.a MPEG-4 part 10, is the answer. The recent H.264 video coding standard, a collaboration between ITU-T (International Telecommunication Union) and MPEG (Moving Pictures Expert Group), promises very high video fidelity that requires only half the video storage compared to the most advanced video standard such as MPEG 4, DivX or H.263. By using the new standard on broadband networks such as 3G, this will translate to savings by half for consumers or in a service provider perspective, increasing twice the capacity to serve customers. It makes video streaming economically feasible and especially suited for mass adoption due to the robustness of H.264 on noisy network. But all these advantages come at the expense of high complexity of encoding process for the new video coding algorithm: about 5-6 times more complex than existing MPEG/ITU-T international standard! To reduce the computational complexity, I²R has invented several patent-pending H.264 fast video coding algorithms to speed up the encoding process by two to four times. The algorithms used were recently adopted as the recommended techniques by MPEG/ITU-T international standard because of its superb performances. Meanwhile, the H.264 encoder is now adaptive to network bandwidth fluctuation, thus making the video codec more effective in utilising available network resources, resulting in better video quality. This has been made possible with the implementation of our patent pending rate control scheme, which incidentally was also adopted in the MPEG/ITU-T international standard. With these technologies working together, superb video quality can be achieved. Our technology is very suitable for video streaming on 3G or wireless networks which have high network bandwidth fluctuation. It is also suitable for next generation high definition video player and broadband services. Figure 1.
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