A JPEG-like texture compression with adaptive quantization for 3D graphics application

C. H. Chen*, Chen-Yi Lee

*Corresponding author for this work

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

DCT-based compression is widely used in video and image compression for a high compression ratio, but it suffers from random-access problem when applied to texture compression. In this paper we present a JPEG-Like DCT-based texture compression technique which is suitable for 3D graphics rendering system. We apply a simple adaptive quantization on an 8 × 8 block-size texture, such that the length of the encoded bit stream of one block can be approximated to the target. A pre-defined quantizer scale is encoded with the bit stream with a small overhead. Our technique achieved a high compression ratio, quality control of true color texture, and random access of texture data.

Original languageEnglish
Pages (from-to)29-40
Number of pages12
JournalVisual Computer
Volume18
Issue number1
DOIs
StatePublished - 1 Feb 2002

Keywords

  • 3D graphics
  • Texture compression

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