发明名称 |
ARITHMETICAL CODING OF TRANSFORM COEFFICIENTS |
摘要 |
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. |
申请公布号 |
PT1467491(E) |
申请公布日期 |
2007.03.30 |
申请号 |
PT20040016773T |
申请日期 |
2003.05.02 |
申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
HEIKO SCHWARZ;DETLEF MARPE;THOMAS WIEGAND |
分类号 |
G06T9/00;H04N19/13;H03M7/40;H04N1/41;H04N1/413;H04N19/129 |
主分类号 |
G06T9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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