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High-Efficiency Video Coding (HEVC) is currently being prepared as the newest video coding standard of the ITU-T Video Coding Experts Group (VCEG) and the ISO/IEC Moving Picture Experts Group (MPEG). The main goal of the HEVC standardization effort is to enable significantly improved compression performance relative to existing standards – in the range of(More)
This paper provides an overview of the intra coding techniques in the High Efficiency Video Coding (HEVC) standard being developed by the Joint Collaborative Team on Video Coding (JCT-VC). The intra coding framework of HEVC follows that of traditional hybrid codecs and is built on spatial sample prediction followed by transform coding and postprocessing(More)
This paper provides a technical overview of a newly added in-loop filtering technique, sample adaptive offset (SAO), in High Efficiency Video Coding (HEVC). The key idea of SAO is to reduce sample distortion by first classifying reconstructed samples into different categories, obtaining an offset for each category, and then adding the offset to each sample(More)
High Efficiency Video Coding (HEVC) is the latest joint standardization effort of ITU-T WP 3/16 and ISO/IEC JTC 1/SC 29/WG 11. The resultant standard will be published as twin text by ITU-T and ISO/IEC; in the latter case, it will also be known as MPEG-H Part 2. This paper describes the block partitioning structure of the draft HEVC standard and presents(More)
Special Section on the Joint Call for Proposals on High Efficiency Video Coding (HEVC) Standardization THE FIRST commercially successful digital video compression standard emerged 20 years ago in the form of Recommendation ITU-T H.261. MPEG-1 and H.262/MPEG2 video (the latter was jointly standardized by ITU-T and ISO/IEC) were then developed very soon(More)
Coding efficiency gains in the new High Efficiency Video Coding (H.265/HEVC) video coding standard are achieved by improving many aspects of the traditional hybrid coding framework. Motion compensated prediction, and in particular the interpolation filter, is one area that was improved significantly over H.264/AVC. This paper presents the details of the(More)
This paper presents the feasibility of using an ad-hoc network as an infrastructure for a small group of inter-vehicle communication network. Mobile ad-hoc networking with wireless LAN infrastructure can be employed to build inter-vehicle communication based network. The irregular driving environment pose a challenge to the performance of a wireless LAN. We(More)
We propose a robust end-to-end loss differentiation scheme to identify the packet losses due to congestion for TCP connections over wired/wireless networks. We use the measured RTT values in determining whether the cause of packet loss is due to congestion over wired path or regular bit errors over wireless paths. The classification should be as accurate as(More)
Linear prediction model has been well investigated and applied in lossless image and video coding. In this paper, we investigate the linear prediction method for block-based lossy image coding and propose a method that merges linear prediction technique into H.264/AVC video coding framework. A block-based linear prediction method is designed instead of(More)