Patent · US Active

Moving picture coding method and moving picture decoding method

US7933327B2 · kind B2 · utility

7Cited by
10References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 26, 2005
Grant dateApr 26, 2011
Priority date
Expiry dateDec 14, 2028

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N19/70
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A moving picture coding apparatus 1 includes: a quantization matrix holding unit (112) that holds a quantization matrix (WM) which has already been transmitted in a parameter set and a matrix ID for identifying the quantization matrix (WM), which are associated with each other; and a variable length coding unit (111) that obtains the matrix ID corresponding to the quantization matrix (WM) used for quantization from the quantization matrix holding unit (112) and places the matrix ID in a coded stream Str.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.