NDLI: Real-time disparity information compression in 3D teleconferencing systems

Content Provider	IEEE Xplore Digital Library
Author	Papadimatos, D. Antonakopoulos, T. Makios, V.
Copyright Year	1998
Description	Author affiliation: Dept. of Electr. Eng., Patras Univ., Greece (Papadimatos, D.)
Abstract	This paper presents a real-time entropy compression/decompression unit for disparity map information used in 3D teleconferencing systems. The disparity map data form a constant bit rate data stream which has to be transmitted through an ATM channel supporting lower data rates. The selection of the proper compression algorithm must be based on the durability of the regenerated data to various types of errors, generated mainly due to the limited available bandwidth. Initially we present the disparity map formats, why they should be coded losslessly, some well-known entropy algorithms and their performance in terms of compression rate and throughput. All algorithms are evaluated according to the application requirements which are: good compression rate, real-time implementability and fast convergence during the compression initialization phase. Feasible implementations are proposed for the algorithms selected using commercially available digital signal processors (DSPs) and field programmable gate arrays (FPGAs).
Starting Page	528
Ending Page	535
File Size	725932
Page Count	8
File Format	PDF
ISBN	0818686464
ISSN	10896503
DOI	10.1109/EURMIC.1998.708067
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-08-27
Publisher Place	Sweden
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Teleconferencing Signal processing algorithms Entropy Field programmable gate arrays Real time systems Bit rate Compression algorithms Bandwidth Performance loss Throughput
Content Type	Text
Resource Type	Article

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