Title :
Lossy-to-Lossless Compression of Hyperspectral Imagery Using Three-Dimensional TCE and an Integer KLT
Author :
Zhang, Jing ; Fowler, James E. ; Liu, Guizhong
Author_Institution :
Dept. of Electr. & Comput. Eng., Mississippi State Univ., Starkville, MS
Abstract :
An embedded lossy-to-lossless coder for hyperspectral images is presented. The proposed coder couples a reversible integer-valued Karhunen-Loeve transform with an extension into 3-D of the tarp-based coding with classification for embedding (TCE) algorithm that was originally developed for lossy coding of 2-D images. The resulting coder obtains lossy-to-lossless operation while closely matching the lossy performance of JPEG2000. Additionally, for lossless compression, it consistently outperforms not only JPEG2000 but, often, several prominent purely lossless methods.
Keywords :
Karhunen-Loeve transforms; data compression; geophysical signal processing; geophysical techniques; image coding; remote sensing; 3D TCE; JPEG2000 comparison; TCE algorithm; hyperspectral image compression; image coder; integer KLT; lossy-lossless compression; reversible integer valued Karhunen-Loeve transform; tarp based coding with classification for embedding; Hyperspectral compression; integer Karhunen–LoÈve transform (KLT); lossy-to-lossless coding; tarp filtering; tarp-based coding with classification for embedding (TCE);
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2008.2006571
