Proceedings of the Korean Society of Broadcast Engineers Conference (한국방송∙미디어공학회:학술대회논문집)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
권호 표지

Block-based Layered Coding of Images Using Subband Coding

  • Kim, Jeong-Kwon (The institute of new media and communication, Seoul, Nat'l Univ.) ;
  • Lee, Sang-Uk (The institute of new media and communication, Seoul, Nat'l Univ.) ;
  • Lee, Choong-Woong (The institute of new media and communication, Seoul, Nat'l Univ.)
  • Published : 1997.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

The present block-based DCT encoder transforms images regardless of layers and then simply partitions the transformed data into a few layers, for example low and high frequency bands in JPEG. Yet, it fails to utilize the similarity of coefficients in each band. Therefore, we combine the subband coder and the block-based DCt coder in this paper. The new coding scheme enables the data to automatically be classified into several layers and increases the efficiency of transform. Various possible coding structures are investigated and the simulation results are also provided.

Keywords