Title :
An evaluation of JPEG compression for on-line satellite images transmission
Author :
Tada, T. ; Cho, K. ; Shimoda, H. ; Sakata, T. ; Sobue, S.
Author_Institution :
Res. & Inf. Center, Tokai Univ., Tokyo, Japan
Abstract :
Image compression is a key technology to realize on-line satellite image transmission economically and quickly. Among various image compression algorithms, the JPEG algorithm is the international standard for still color image compression. In this study, various kinds of satellite images were compressed with the JPEG algorithm. The relation between compression ratio and image quality were evaluated. As for the image quality evaluation, both subjective evaluation and objective evaluation were performed. It was determined that all the test satellite images could be compressed to at least 1/10 of the original data volume preserving high visual image quality. The degradation of spatial distribution quality of the compressed images were evaluated using power spectrum of original and compressed images
Keywords :
data compression; geophysical techniques; image coding; remote sensing; JPEG; algorithm; data coding; data compression; geophysical measurement technique; geophysics computing; image processing; image transmission; land surface remote sensing; satellite image; still color image compression; telemetry; Color; Degradation; Image coding; Image communication; Image quality; Performance evaluation; Power generation economics; Satellites; Testing; Transform coding;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1993. IGARSS '93. Better Understanding of Earth Environment., International
Conference_Location :
Tokyo
Print_ISBN :
0-7803-1240-6
DOI :
10.1109/IGARSS.1993.322757
