NDLI: A Multisacle based Multistage Lattice Vector Quantization Video Coding for Robust Transmission over Wireless Channels

Content Provider	IEEE Xplore Digital Library
Author	Salleh, M.F.M. Soraghan, J.J.
Copyright Year	2007
Description	Author affiliation: Sch. of Electr. & Electron. Eng., Univ. Sains Malaysia, Nibong Tebal (Salleh, M.F.M.; Soraghan, J.J.)
Abstract	In this paper a new non-predictive video codec for mobile applications is presented. The non-predictive scheme omits prediction step in the temporal axis. Hence, it increases robustness for transmission at low bit rate in mobile channel. The video sequence is grouped into a number of frames (GOP) and the same subband from each frame in the GOP are joined together to exploit their spatial-temporal redundancies. The significant vectors of the joined subband within the GOP are quantized using a novel multistage lattice vector quantization (MLVQ). This process reduces quantization errors and enhances the reconstruction quality of the frames. Experimental results of the new video codec are shown to be significantly better than H.263 and comparable to the current H.264 standard in erroneous Hilly Terrain mobile environment, simulated using TETRA channel simulator for some test video sequences.
Starting Page	388
Ending Page	391
File Size	1286691
Page Count	4
File Format	PDF
ISBN	9781424412358
DOI	10.1109/ICSPC.2007.4728337
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-11-24
Publisher Place	United Arab Emirates
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Video coding RS codes Vector quantization TETRA channels Video sequences Redundancy Lattices Code standards Video codecs Error resilient Bit rate lattice vector quantization Robustness Testing
Content Type	Text
Resource Type	Article

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