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Multiple description coding (MDC) is a potential solution for video transmission over error-prone networks because it shows promising enhancement of error resilient capability. The MDC systems encode a single video stream into two or more equally important independent sub-streams, called descriptions. Therefore, if some of the descriptors get lost,(More)
In this paper, a distributed video coding technique with prioritized channel coding of W-Z frames is presented. In the proposed framework, W-Z frame macroblocks are classified into different groups based on the estimated quality of the side information. The information is transmitted via uplink channel back to the encoder so that macroblocks with similar(More)
Mobile 2.0 is being considered as a natural extension of the Web 2.0 revolution to the mobile networks. One important concept in Web 2.0 is the real-time creation and uplink transmission of rich multimedia contents from individual clients to the Internet. However, due to power constraints of mobile handsets, it is difficult to turn this concept into(More)
Palette mode, as a new coding tool, is adopted in the Screen Content Coding Extensions of High Efficiency Video Coding (HEVC SCC) that is being defined by the Joint Collaborative Team on Video Coding (JCT-VC). In the palette mode, pixels in a coding unit (CU) are represented by selected representative colours according to the characteristics of screen(More)
An error-resilient scheme based on multiple reference frames is proposed, which employs error-resilient frames (ER-frame) as part of reference frames and adopts a rate distortion optimized (RDO) technique to choose the blocks referring to ER-frames. To reduce the computational cost, two techniques are further proposed. Experimental results show that(More)
Palette mode is the new coding tool that has been adopted in the Screen Content Coding Extensions of High Efficiency Video Coding (HEVC SCC). Palette mode can represent colour clusters for screen content efficiently and can be summarized into two parts: palette coding tools and colour index map coding tools. This paper proposes two techniques to improve(More)