Title :
Wavelet zerotree image compression with packetization
Author :
Rogers, Jon K. ; Cosman, Pamela C.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
fDate :
5/1/1998 12:00:00 AM
Abstract :
We describe a combined wavelet zerotree coding and packetization method that provides excellent image compression and graceful degradation against packet erasure. For example, using 53-byte packets (48-byte payload), the algorithm compresses the 512/spl times/512 gray-scale Lena image to 0.2 b/pixel with a peak signal-to-noise ratio (PSNR) of 32.2 dB with no packet erasure, and 26.3 dB on average for 10% packets erased.
Keywords :
data compression; image coding; transform coding; tree data structures; wavelet transforms; PSNR; gray-scale Lena image; image compression; packet erasure; packetization method; peak signal-to-noise ratio; wavelet zerotree coding; Automatic repeat request; Decoding; Degradation; Forward error correction; Gray-scale; Image coding; PSNR; Packet switching; Payloads; Wavelet packets;
Journal_Title :
Signal Processing Letters, IEEE
