Title:
画像および/またはビデオ符号器と復号器における変換係数を符号化するための方法と装置および対応するコンピュータプログラムと対応するコンピュータによる読み出し可能な記憶媒体
Document Type and Number:
Japanese Patent JP4295356
Kind Code:
B1
Abstract:
A first one-bit symbol (CBP4) is transmitted for each block of transformation coefficients. If the CBP4 shows that a corresponding block contains significant coefficients, a significance image is encoded as a result of the transmission of a one-bit symbol (SIG) for each coefficient in a scan sequence. If a corresponding significance symbol is 'one', then a further one-bit symbol (LAST) is transmitted to show whether a present significant coefficient is a last coefficient within a block or whether further significant coefficients are following. Positions of significant transformation coefficients contained in a block are determined and encoded for each block in a first scanning process, followed by a second scanning process carried out in reverse order. Independent claims are also included for the following: (a) A structure with a processor/chip set up to carry out the method of the present invention; (b) and for a computer program for carrying out the method of the present invention when loaded; (c) and for a computer-readable memory medium for storing a program to carry out the method of the present invention; (d) and for a method for downloading a computer program e.g. from the Internet onto a data-processing device linked to a data network.
Inventors:
Schwarz Heiko
Malpe de Treff
Vegan thomas
Malpe de Treff
Vegan thomas
Application Number:
JP2009037764A
Publication Date:
July 15, 2009
Filing Date:
February 20, 2009
Export Citation:
Assignee:
Fraunhofer-Gesellschaft Tool Felderung del Angewanten Forsung Eingetler Genel Fehlein
International Classes:
H04N19/13; G06T9/00; H03M7/40; H04N1/41; H04N1/413; H04N19/129
Attorney, Agent or Firm:
Hidetaka Tsutsui