ISO-TR-14496-7-2004.pdf
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1、 Reference number ISO/IEC TR 14496-7:2004(E) ISO/IEC 2004 TECHNICAL REPORT ISO/IEC TR 14496-7 Second edition 2004-10-15 Information technology Coding of audio-visual objects Part 7: Optimized reference software for coding of audio-visual objects Technologies de linformation Codage des objets audiovi
2、suels Partie 7: Logiciel de rfrence optimis pour le codage des objets audiovisuels ISO/IEC TR 14496-7:2004(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which
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5、at a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO/IEC 2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopyin
6、g and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerlan
7、d ii ISO/IEC 2004 All rights reserved ISO/IEC TR 14496-7:2004(E) ISO/IEC 2004 All rights reserved iii Contents Page Forewordiv Introduction .vi 1 Scope1 2 Fast Motion Estimation.1 2.1 Introduction to Motion Adaptive Fast Motion Estimation.1 2.2 Technical Description of Core Technology MVFAST .2 2.2.
8、1 Detection of stationary blocks.2 2.2.2 Determination of local motion activity2 2.2.3 Search Center3 2.2.4 Search Strategy.4 2.2.5 Perspectives on implementing MVFAST 4 2.2.6 Special Acknowledgements.5 2.3 Technical Description of PMVFAST5 2.3.1 Introduction .5 2.3.2 Technical Description of PMVFAS
9、T6 2.3.3 Special Acknowledgement.7 2.4 Conclusions.7 3 Fast Global Motion Estimation 8 3.1 Introduction to Feature-based Fast and Robust Global Motion Estimation Technique8 3.2 Technical Description of FFRGMET9 3.2.1 Outlier Exclusion.9 3.2.2 Robust Object Function .9 3.2.3 Feature Selection 10 3.2.
10、4 Algorithm Description 10 3.2.5 Perspectives on implementing FFRGMET11 3.2.6 Special Acknowledgements.11 3.3 Conclusions.11 4 Fast and Robust Sprite Generation.11 4.1 Introduction to Fast and Robust Sprite Generation11 4.2 Algorithm Description 11 4.2.1 Outline of Algorithm .11 4.2.2 Image Region D
11、ivision12 4.2.3 Fast and Robust Motion Estimation13 4.2.4 Image Segmentation.14 4.2.5 Image Blending .14 4.3 Conclusions.15 5 Optimised Reference Software For Simple Profile and Error Resilience Tools.15 5.1 Scope15 5.2 Integration and Optimization of the Reference Software15 5.2.1 Introduction .15
12、5.2.2 Removal of the unused procedures, parameters, and data structures.16 5.2.3 Revision of the code bases for saving the execution time and code sizes16 5.2.4 Use of the existing fast algorithms for the computational burden modules21 5.2.5 Optimised Simple Profile encoder and decoder25 5.2.6 Exper
13、imental Results25 5.3 Error Resilience Tools29 5.3.1 Abbreviations 29 5.3.2 New Processing / functionalities.29 6 Contact Information31 Bibliography .32 ISO/IEC TR 14496-7:2004(E) iv ISO/IEC 2004 All rights reserved Foreword ISO (the International Organization for Standardization) and IEC (the Inter
14、national Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fi
15、elds of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a
16、 joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical comm
17、ittee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. In exceptional circumstances, the joint technical committee may propose the publication of a Technical Report of one of the following
18、 types: type 1, when the required support cannot be obtained for the publication of an International Standard, despite repeated efforts; type 2, when the subject is still under technical development or where for any other reason there is the future but not immediate possibility of an agreement on an
19、 International Standard; type 3, when the joint technical committee has collected data of a different kind from that which is normally published as an International Standard (“state of the art”, for example). Technical Reports of types 1 and 2 are subject to review within three years of publication,
20、 to decide whether they can be transformed into International Standards. Technical Reports of type 3 do not necessarily have to be reviewed until the data they provide are considered to be no longer valid or useful. Attention is drawn to the possibility that some of the elements of this document may
21、 be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. ISO/IEC TR 14496-7, which is a Technical Report of type 3, was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio,
22、picture, multimedia and hypermedia information. This second edition cancels and replaces the first edition (ISO/IEC 14496-7:2002) which has been technically revised. ISO/IEC TR 14496 consists of the following parts, under the general title Information technology Coding of audio-visual objects: Part
23、1: Systems Part 2: Visual Part 3: Audio Part 4: Conformance testing Part 5: Reference software ISO/IEC TR 14496-7:2004(E) ISO/IEC 2004 All rights reserved v Part 6: Delivery Multimedia Integration Framework (DMIF) Part 7: Optimized reference software for coding of audio-visual objects Technical Repo
24、rt Part 8: Carriage of ISO/IEC 14496 contents over IP networks Part 9: Reference hardware description Technical Report Part 10: Advanced Video Coding Part 11: Scene description and application engine Part 12: ISO base media file format Part 13: Intellectual Property Management and Protection (IPMP)
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