Performance Enhancement of a Spline-based Method for Extreme Compression of Weather Radar Reflectivity Data

Mahapatra, Pravas R and Makkapati, Vishnu V (2005) Performance Enhancement of a Spline-based Method for Extreme Compression of Weather Radar Reflectivity Data. In: Fifth IEEE International Symposium on Signal Processing and Information Technology. ISSPIT 2005, 18-21 December, Athens,Greece, pp. 147-152.

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Abstract

Enhancements are carried out to a contour-based method for extreme compression of weather radar reflectivity data for efficient storage and transmission over low-bandwidth data links. In particular, a new method of systematically adjusting the control points to obtain better reconstruction of the contours using B-Spline interpolation is presented. Further, bit-level manipulations to achieve higher compression ratios are investigated. The efficacy of these enhancements is quantitatively evaluated with respect to achievable compression ratios and the root-mean-square error of the retrieved contours, and qualitatively assessed from the visual fidelity of the reconstructed contours. Results are presented for actual Doppler weather radar data sets.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	©1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords:	High data compression;Weather radar data compression; Contour-based data compression;Spline based contour reconstruction
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	04 Jan 2006
Last Modified:	19 Sep 2010 04:22
URI:	http://eprints.iisc.ac.in/id/eprint/4840

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