Integer wavelet transform for weather radar data compression

Ning Ma; Wei Yan; Qingdong Wang

doi:10.1117/12.442917

26 September 2001 Integer wavelet transform for weather radar data compression

Ning Ma, Wei Yan, Qingdong Wang

Proceedings Volume 4551, Image Compression and Encryption Technologies; (2001) https://doi.org/10.1117/12.442917
Event: Multispectral Image Processing and Pattern Recognition, 2001, Wuhan, China

Abstract

A novel compression algorithm for weather radar data based on integer wavelet transforms and zerotree coding is presented. Considering the dependencies of the radar data, we give an efficient pre-processing of the data first. Then an advanced Embedded Zerotree Wavelet encoding algorithm is presented which uses context-based adaptive arithmetic coding to improve its performance. Experimental results show that the compression ratios are improved significantly both for lossless and lossy data compression.

Citation Download Citation

Ning Ma, Wei Yan, and Qingdong Wang "Integer wavelet transform for weather radar data compression", Proc. SPIE 4551, Image Compression and Encryption Technologies, (26 September 2001); https://doi.org/10.1117/12.442917

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