Invention Grant
US06735254B2 DCT compression using Golomb-Rice coding 有权
使用Golomb-Rice编码进行DCT压缩

  • Patent Title: DCT compression using Golomb-Rice coding
  • Patent Title (中): 使用Golomb-Rice编码进行DCT压缩
  • Application No.: US09895618
    Application Date: 2001-06-29
  • Publication No.: US06735254B2
    Publication Date: 2004-05-11
  • Inventor: Kadayam Thyagarajan
  • Applicant: Kadayam Thyagarajan
  • Main IPC: H04N712
  • IPC: H04N712
DCT compression using Golomb-Rice coding
Abstract:
An apparatus and method for encoding quantized frequency represented data wherein the data comprised zero and non-zero represented data. For zero represented data, a zero run length is determined. A Golomb parameter is determined as a function of the zero run length. A quotient is encoded as a function of the zero run length, and the Golomb parameter. A remainder is encoded as a function of the zero run length, the Golomb parameter and the quotient. The coded quotient and the coded remainder are concatenated. For non-zero represented data, the nonzero data is encoded as a function of the non-zero data value and the sign of the non-zero data value.
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