ISO-10918-1-1994.pdf
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1、INTERNATIONAL STANDARD ISO/IEC 1 O91 8-1 11994 TECHNICAL CORRIGENDUM 1 Published 2005-02-1 5 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEY4yHAPOflHAR OPTAHHIAHR no CTAHAAPTHIWHH ORGANISATION INTERNATIONALE DE NORMALISATION INTERNATIONAL ELECTROTECHNICAL COMMISSION MEY4yHAPOflHAR 3IlEKTPOTWHHqEC
2、KAR KOMHCCHR COMMISSION GLECTROTECHNIQUE INTERNATIONALE Information technology - Digital compression and coding of continuous-tone still images - Part 1: Requirements and guidelines TECHNICAL CORRIGENDUM 1 : Patent information update Technologies de linformation - Compression numrique et codage des
3、images fixes de nature photographique - Partie 1: Prescriptions et lignes directrices RECTIFICATIF TECHNIQUE I: Mise jour des informations relatives aux brevets Technical Corrigendum 1 to ISO/IEC 10918-1 :I994 was prepared by Joint Technical Committee ISO/IEC JTC 1, information technology, Subcommit
4、tee SC 29, Coding of audio, picture, multimedia and hypermedia information. ICs 35.040 Ref. No. ISO/IEC 10918-1 :1994/Cor.l:2005(E) O ISOIIEC 2005 -All rights reserved Published in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IH
5、S Employees/1111111001, User=Wing, Bernie Not for Resale, 04/03/2007 01:14:32 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie
6、 Not for Resale, 04/03/2007 01:14:32 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 10918-1:1994/Cor.l:2005 (E) INTERNATIONAL STANDARD ITU-T RECOMMENDATION Information technology - Digital compression and coding of continuous-tone still images - Requirements and gu
7、idelines Technical Corrigendum 1 Patent information update Replace Annex L text by the following: Annex L Patents (This annex does not form an integral part of this Recommendation I International Standard) L.l Introductory remarks The users attention is called to the possibility that - for some of t
8、he coding processes specified in Annexes F, G, H, and J - compliance with this Specification may require use of an invention covered by patent rights. By publication of this Specification, no position is taken with respect to the validity of this claim or of any other claimed patent rights in connec
9、tion therewith. However, for each patent listed in this annex, the patent holder has filed with the Information Technology Task Force (ITTF) of ISOIEC and the Telecommunication Standardization Bureau (TSB) of the ITU a statement of willingness to grant a licence under these rights on reasonable and
10、non-discriminatory terms and conditions to applicants desiring to obtain such a licence (see the respective ITU-T and IS0 IPR policies for details). In accordance with the IPR policies of ISO/IEC and ITU-T, the criteria for including patents in this annex are: a) the patent has been identified by so
11、meone who is familiar with the technical fields relevant to this Specification, and who believes use of the invention covered by the patent is required for implementation of one or more of the coding processes specified in Annexes F, G, H, or J; and the patent-holder has written a letter to the ITTF
12、 and TSB, stating willingness to grant a licence to an unlimited number of applicants throughout the world under reasonable terms and conditions that are demonstrably fi-ee of any unfair discrimination. b) This list of patents shall be updated, if necessary, upon publication of any revisions to this
13、 Recommendation I International Standard. For the latest list of the patent statements received by the ITU, please consult hlli.l.iii:;,tu,“t;, ITU-T databases. L.2 List of patents According to L.l, the following patents may be required for implementation of any one of the processes specified in Ann
14、exes F, G, H, and J which uses arithmetic coding: US 4,633,490, December 30, 1986, IBM, MITCHELL (J.L.) and GOERTZEL (G.): Symmetrical Adaptive Data Compression/Decompression System. US 4,652,856, February 4, 1986, IBM, MOHIUDDIN (K.M.) and RISSANEN (J.J.): A Multiplication-fiee Multi-Alphabet Arith
15、metic Code. US 4,369,463, January 18, 1983, IBM, ANASTASSIOU (D.) and MITCHELL (J.L.): Grey Scale Image Compression with Code Words a Function o f Image History. US 4,749,983, June 7, 1988, IBM, LANGDON (G.): Compression o f Multilevel Signals. ITU-T Rec. T.81 (1992)Kor.l (01/2004) 1 Copyright Inter
16、national Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/03/2007 01:14:32 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 10918-1:1994/Cor.l:2005 (E) US 4,935,882, June 1
17、9, 1990, IBM, PENNEBAKER (W.B.) and MITCHELL (J.L.): Probability Adaptation for Arithmetic Coders. US 4,905,297, February 27, 1990, IBM, LANGDON (G.G.), Jr., MITCHELL (J.L.), PENNEBAKER (W.B.), and RISSANEN (J.J.): Arithmetic Coding Encoder and Decoder System. US 4,973,961, November 27, 1990, AT spe
18、cifies processes for converting compressed image data to reconstructed image data; gives guidance on how to implement these processes in practice; specifies coded representations for compressed image data. 2 Normative references The following CCITT Recommendations and International Standards contain
19、 provisions which, through reference in this text, constitute provisions of this CCITT Recommendation I International Standard. At the time of publication, the editions indicated were valid. All Recommendations and Standards are subject to revision, and parties to agreements based on this CCITT Reco
20、mmendation I International Standard are encouraged to investigate the possibility of applying the most recent edition of the Recommendations and Standards listed below. Members of IEC and IS0 maintain registers of currently valid International Standards. The CCITT Secretariat maintains a list of cur
21、rently valid CCITT Recommendations. CCITT Recommendation T.80 (1 992), Common components for image compression and communication - Basic principles. - 3 Definitions, abbreviations and symbols 3.1 Definitions and abbreviations For the purposes of this Specification, the following definitions apply. 3
22、.1.1 abbreviated format: A representation of compressed image data which is missing some or all of the table specifications required for decoding, or a representation of table-specification data without frame headers, scan headers, and entropy-coded segments. 3.1.2 AC coefficient: Any DCT coefficien
23、t for which the frequency is not zero in at least one dimension. 3.1.3 (adaptive) (binary) arithmetic decoding: An entropy decoding procedure which recovers the sequence of symbols from the sequence of bits produced by the arithmetic encoder. 3.1.4 (adaptive) (binary) arithmetic encoding: An entropy
24、 encoding procedure which codes by means of a recursive subdivision of the probability of the sequence of symbols coded up to that point. 3.1.5 application environment: The standards for data representation, communication, or storage which have been established for a particular application. CCITT Re
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