Lossy-to-Lossless Compression of Hyperspectral Imagery Using Three-Dimensional TCE and an Integer KLT

• Published in: IEEE geoscience and remote sensing letters Vol. 5; no. 4; pp. 814 - 818
• Main Authors: Jing Zhang, Fowler, J.E., Guizhong Liu
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.10.2008; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Classification; Coders; Coding; Compressing; Couples; Discrete wavelet transforms; Filtering; Hyperspectral compression; Hyperspectral imaging; Image coding; Image resolution; integer Karhunen-LoÈve transform (KLT); Karhunen-Loeve transforms; Lossless; lossy-to-lossless coding; Performance loss; Pulse modulation; Table lookup; tarp filtering; tarp-based coding with classification for embedding (TCE); Three dimensional; Transform coding
• ISSN: 1545-598X; 1558-0571
• DOI: 10.1109/LGRS.2008.2006571

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.