Layered image transmission based on embedded zero-tree wavelet coding

Wen Jyi Hwang, Wen Liang Hwang, Yeong Cherng Lu

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


A new layered image transmission (LIT) design algorithm is presented. The algorithm allows various decoder devices with different resolution and rate requirements to share a common image encoder. The number of layers for the transmission as well as the resolution and the average rate associated with each layer can be determined from the requirements of the decoders. Based on the constraints for each layer, the successive approximation quantization scheme is used to encode images for transmission. In addition to LIT, the algorithm can also be used to design progressive image transmission (PIT) systems where image resolution during transmission can be controlled. Simulation results show that the new algorithm is very effective for constructing both LIT and PIT systems.

Original languageEnglish
Pages (from-to)1326-1334
Number of pages9
JournalOptical Engineering
Issue number8
Publication statusPublished - 1999 Aug
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Engineering


Dive into the research topics of 'Layered image transmission based on embedded zero-tree wavelet coding'. Together they form a unique fingerprint.

Cite this