Title :
Low-memory packetized SPIHT image compression
Author :
Wheeler, Frederick W. ; Pearlman, William A.
Author_Institution :
Dept. of Electr. Comput. & Syst. Eng., Rensselaer Polytech. Inst., Troy, NY, USA
Abstract :
The SPIHT image compression algorithm is modified for application to large images with limited processor memory. The subband decomposition coefficients are partitioned into small tree-preserving spatial blocks which are each independently coded using the SPIHT algorithm. The bitstreams for each spatial block are assembled into a single final bitstream through one of two packetization schemes. The final bitstream can be embedded in fidelity with a small expense in rate, SPIHT encoding and decoding of the spatial blocks can be done in parallel for real-time video compression.
Keywords :
data compression; decoding; packet switching; trees (mathematics); video coding; JPEG 2000 standardization committee; JPEG 2000 verification module test software; SPIHT decoding; SPIHT encoding; SPIHT image compression algorithm; bitstreams; large images; low-memory packetized image compression; real-time video compression; subband decomposition coefficients; tree-based codec; tree-preserving spatial blocks; Assembly; Codecs; Decoding; Image coding; Partitioning algorithms; Random access memory; Read-write memory; Resilience; Systems engineering and theory; Transform coding;
Conference_Titel :
Signals, Systems, and Computers, 1999. Conference Record of the Thirty-Third Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-5700-0
DOI :
10.1109/ACSSC.1999.831896
