Image/video spatial scalability in compressed domain

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Image/video compression is widely used in various applications with the advent of the Joint Photographic Expert Group (JPEG), Motion Picture Expert Group (MPEG), and H.261 standards. Hence, most visual data are stored in the compressed format. Spatial scalable encoding of visual data has several applications, including browsing visual databases, querying multimedia databases, interactive multimedia communications, etc. In this paper, we propose two novel techniques, namely, format compatible (FC) discrete cosine transfer (DCT) and format modified (FM) DCT to implement image/video spatial scalability directly in the DCT compressed domain. The FC-DCT technique can be used to manipulate the standard bit streams, such as JPEG, MPEG, etc., while the FM-DCT technique can be employed in a variety of applications which require fast processing. In contrast to the traditional spatial-domain techniques, the compressed-domain techniques remove the unnecessary decompression and recompression procedures, thus, they have the advantages of reduced computational complexity and storage requirements. Simulation results demonstrate that the proposed DCT-domain techniques can achieve a comparable performance at a much lower computational complexity compared to the spatial-domain techniques.

Original languageEnglish (US)
Pages (from-to)23-31
Number of pages9
JournalIEEE Transactions on Industrial Electronics
Volume45
Issue number1
DOIs
StatePublished - 1998
Externally publishedYes

Fingerprint

Scalability
Motion pictures
format
Computational complexity
motion pictures
multimedia
Image compression
video compression
Communication
pressure reduction
Processing
compressing
coding
communication
requirements
simulation

Keywords

  • Computational complexity
  • Dct domain
  • Image/video compression
  • Spatial scalability

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Instrumentation

Cite this

Image/video spatial scalability in compressed domain. / Hu, Qingwen; Panchanathan, Sethuraman.

In: IEEE Transactions on Industrial Electronics, Vol. 45, No. 1, 1998, p. 23-31.

Research output: Contribution to journalArticle

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