Title :
Compression experiments with AVHRR data
Author :
Tilton, James C. ; Han, Daesoo ; Manohar, M.
Author_Institution :
NASA Goddard Space Flight Center, Greenbelt, MD, USA
Abstract :
This paper describes several data compression approaches for producing browse data from AVHRR data, and evaluates these approaches qualitatively and quantitatively. They include a hierarchical data compression scheme based on progressively finer image segmentations, and various vector quantization approaches. They are evaluated in terms of compression ratio (or data rate), computational requirements, and the image and analysis errors introduced due to lossy compression. Analysis products evaluated for error include cloud coverage area and sea surface temperatures
Keywords :
coding errors; computerised picture processing; data compression; geophysical techniques; radiometry; AVHRR data; browse data; cloud coverage area; compression ratio; computational requirements; data compression approaches; errors; hierarchical data compression scheme; image segmentations; lossy compression; sea surface temperatures; vector quantization; Bandwidth; Clouds; Data communication; Data compression; Image coding; Instruments; NASA; Postal services; Remote sensing; Space technology;
Conference_Titel :
Data Compression Conference, 1991. DCC '91.
Conference_Location :
Snowbird, UT
Print_ISBN :
0-8186-9202-2
DOI :
10.1109/DCC.1991.213339
