Subjected quality of reconstructed images obtained with classical and advanced wavelet coders
Dušan Gleich, Peter Planinsic, Bojan Gergic, Zarko Cucej · Optical Engineering · 2001
Recently a new class of wavelet-image coding techniques has appeared based on an embedded technique. We compare the qual- ity of test images reconstructed using the well-known set partitioning technique (SPIHT), trellis coded quantization using context-based cod- ing (TCQCB), and classical wavelet method (scalar quantization and en- tropy coding). The performance of the TCQCB method is better in rate distortion sense than the performance of the SPIHT method. The recon- structed images obtained with the SPIHT method, however, give better visual impressions than the reconstructed images obtained using both the trellis context based method and the classical wavelet based method. © 2001 Society of Photo-Optical Instrumentation Engineers.