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1、 Reference number ISO/IEC 15938-3:2002/Amd.2:2006(E) ISO/IEC 2006 INTERNATIONAL STANDARD ISO/IEC 15938-3 First edition 2002-02-15 AMENDMENT 2 2006-04-01 Information technology Multimedia content description interface Part 3: Visual AMENDMENT 2: Perceptual 3D Shape Descriptor Technologies de linforma
2、tion Interface de description du contenu multimdia Partie 3: Visuel AMENDEMENT 2: Descripteur sensoriel de forme 3D Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/08/2007 08:17:54
3、 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 15938-3:2002/Amd.2:2006(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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6、at a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO/IEC 2006 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
7、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
8、d ii ISO/IEC 2006 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/08/2007 08:17:54 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO
9、/IEC 15938-3:2002/Amd.2:2006(E) ISO/IEC 2006 All rights reserved iii Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC par
10、ticipate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmen
11、tal 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 joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2
12、. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bod
13、ies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Amendment 2 to ISO/IEC 15938-3:2002 was prepared by Joint Technical Commi
14、ttee ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information. This document preserves the sectioning of ISO/IEC 15938-3. The text and figures given in this Amendment are currently being considered as additions and/or modifications to
15、 those corresponding sections in ISO/IEC 15938-3. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/08/2007 08:17:54 MDTNo reproduction or networking permitted without license from I
16、HS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/08/2007 08:17:54 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 15938-3:2002/Amd.2:2006(
17、E) ISO/IEC 2006 All rights reserved 1 Information technology Multimedia content description interface Part 3: Visual AMENDMENT 2: Perceptual 3D Shape Descriptor Replace subclause 1.2 with: 1.2 Overview of Visual Description Tools This part of ISO/IEC 15938 specifies tools for description of visual c
18、ontent, including still images, video and 3D models. These tools are defined by their syntax in DDL and binary representations and semantics associated with the syntactic elements. They enable description of the visual features of the visual material, such as color, texture, shape and motion, as wel
19、l as localization of the described objects in the image or video sequence. An overview of the visual description tools is shown in Figure 1. The basic structure description tools include five supporting tools of visual descriptions defined in clauses 6-11. They are categorized into two groups, descr
20、iptor containers and basic supporting tools. The former consists of three datatypes, GridLayout providing efficient representations of visual features on grids, TimeSeries representing temporal arrays of several descriptions, GofGopFeature describes representative descriptions over video segment, an
21、d MultipleView describing a 3D object using several pictures captured from different view angles. The latter contains two tools, Spatial2DcoordinateSystem used to specify the 2D coordinate system and TemporalInterpolation indicating the interpolation method between two samples on a time axis. The re
22、maining description tools, except for the FaceRecognition descriptor, are associated with visual features and are grouped into five feature categories: Color, Texture, Shape, Motion and Localization. The color description tools include five color descriptors to represent different aspects of color f
23、eatures: representative colors (DominantColor), color distribution (ScalableColor), spatial distribution of colors (ColorLayout and ColorStructure) and perceptual feeling of illumination color (ColorTemperature). It also contains three supporting tools, ColorSpace and ColorQuantization used in Domin
24、antColor and IlluminationInvariantColor to extend four color descriptors, DominantColor, ScalableColor, ColorLayout and ColorStructure, to support illumination invariant similarity matching. An extension of ScalableColor to a group of frames or pictures (GoFGoPColor) is also included in this group.
25、All the color descriptors can be extracted from arbitrarily shaped regions. The texture description tools facilitate browsing (TextureBrowsing) and similarity retrieval (HomogeneousTexture and EdgeHistogram) using the texture of a still or moving image region. All the texture descriptors can be extr
26、acted from arbitrarily shaped regions. The shape description tools include two descriptors that characterize different shape features of a 2D object or region. The RegionShape descriptor captures the distribution of all pixels within a region and the Contour Shape descriptor characterizes the shape
27、properties of the contour of an object. The extension of RegionShape is also defined as ShapeVariation to describe temporal variation of shape over video segment. The Shape3D and Perceptual 3D Shape descriptors provide 3-dimensional shape information; the former represents an intrinsic shape charact
28、erization of 3D mesh models, and the latter represents part-based representation of a 3D object. The motion description tools include four descriptors that characterize various aspects of motion. The CameraMotion descriptor specifies a set of basic camera operations such as, for example, panning and
29、 tilting. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/08/2007 08:17:54 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 15938-3:2002/Amd.2:2006
30、(E) 2 ISO/IEC 2006 All rights reserved The motion of a key point (pixel) from a moving object or region can be characterized by the MotionTrajectory descriptor. The ParametricMotion descriptor characterizes an evolution of an arbitrarily shaped region over time in terms of a 2D geometric transformat
31、ion. Finally, the MotionActivity descriptor captures the pace of the motion in the sequence, as perceived by the viewer. All motion descriptors except for CameraMotion can be extracted from arbitrarily shaped regions. The localization description tools can be used to indicate regions of interest in
32、the spatial (RegionLocator) and spatio-temporal (SpatioTemporalLocator) domains. The FaceRecognition descriptor and the Advance Face Recognition descriptor are not associated with any particular visual feature and can be used to describe a human face for applications requiring the matching and retri
33、eval of face images. Figure 1 Overview of Visual Description Tools Basic Structures Descriptor Containers GridLayout TimeSeries MultipleView Basic Supporting Tools TemporalInterpolation Spatial2DcoordinateSystem Color Color Feature Descriptors DominantColor ScalableColor ColorLayout ColorStructure G
34、ofGopColor Color Supporting Tools ColorSpace ColorQuantization Texture HomogeneousTexture TextureBrowsing EdgeHistogram Motion CameraMotion MotionTrajectory ParametricMotion MotionActivity Localization RegionLocator SpatioTemporalLocator RegionShape ContourShape Shape3D Shape Visual Features GofGopF
35、eature ShapeVariation Other FaceRecognition AdvancedFaceRecognition ColorTemperature Perceptual 3D Shape IlluminationInvariantColor Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/
36、08/2007 08:17:54 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 15938-3:2002/Amd.2:2006(E) ISO/IEC 2006 All rights reserved 3 Extend the definitions in clause 2: 2.4 adjacency matrix matrix with rows and columns labeled by graph vertices, with a 1 or 0 in position
37、(i, j) according to whether i-th and j-th nodes are adjacent or not. Replace subclause 4.2.2 with: 4.2.2 Generic binary representation The use of the video-specific syntax is signalled using the codec configuration mechanism defined in ISO/IEC 15938-1. And the following classification scheme is defi
38、ned for this purpose. MPEG7CameraMotion ISO/IEC 15938-3 Binary Camera Motion Codec MPEG7ColorLayout ISO/IEC 15938-3 Binary Color Layout Codec MPEG7ColorQuantization ISO/IEC 15938-3 Binary Color Quantization Codec MPEG7ColorSpace ISO/IEC 15938-3 Binary Color Space Codec MPEG7ColorStructure ISO/IEC 15
39、938-3 Binary Color Structure Codec MPEG7ContourShape ISO/IEC 15938-3 Binary Contour Shape Codec MPEG7DominantColor ISO/IEC 15938-3 Binary Dominant Color Codec MPEG7EdgeHistogram ISO/IEC 15938-3 Binary Edge Histogram Codec MPEG7FaceRecognition Copyright International Organization for Standardization
40、Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/08/2007 08:17:54 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 15938-3:2002/Amd.2:2006(E) 4 ISO/IEC 2006 All rights reserved ISO/IEC 15938-3 Binary Face
41、Recognition Codec MPEG7FoFGoPColor ISO/IEC 15938-3 Binary GoFGoP Color Codec MPEG7GridLayout ISO/IEC 15938-3 Binary Grid Layout Codec MPEG7HomogeneousTexture ISO/IEC 15938-3 Binary Homogeneous Texture Codec MPEG7IrregularVisualTimeSeries ISO/IEC 15938-3 Binary Irregular Time Series Codec MPEG7Motion
42、Activity ISO/IEC 15938-3 Binary Motion Activity Codec MPEG7MotionTrajectory ISO/IEC 15938-3 Binary Motion Trajectory Codec MPEG7MultipleView ISO/IEC 15938-3 Binary Multiple View Codec MPEG7ParametricMotion ISO/IEC 15938-3 Binary Parametric Motion Codec MPEG7RegionLocator ISO/IEC 15938-3 Binary Regio
43、n Locator Codec MPEG7RegionShape ISO/IEC 15938-3 Binary Region Shape Codec MPEG7RegularVisualTimeSeries ISO/IEC 15938-3 Binary Regular Time Series Codec MPEG7ScalableColor Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/111111100
44、1, User=Wing, Bernie Not for Resale, 05/08/2007 08:17:54 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 15938-3:2002/Amd.2:2006(E) ISO/IEC 2006 All rights reserved 5 ISO/IEC 15938-3 Binary Scalable Color Codec MPEG7Shape3D ISO/IEC 15938-3 Binary Shape 3D Codec MPEG
45、7Spatial2DCoordinateSystem ISO/IEC 15938-3 Binary Spatial 2D Coordinate System Codec MPEG7SpatioTemporalLocator ISO/IEC 15938-3 Binary SpatioTemporal Locator Codec MPEG7TemporalInterpolation ISO/IEC 15938-3 Binary Temporal Interpolation Codec MPEG7TextureBrowsing ISO/IEC 15938-3 Binary Texture Brows
46、ing Codec MPEG7GofGopFeature ISO/IEC 15938-3 Binary Gof Gop Feature Codec MPEG7ColorTemperature ISO/IEC 15938-3 Binary Color Temperature Codec MPEG7ShapeVariation ISO/IEC 15938-3 Binary Shape Variation Codec MPEG7IlluminationInvariantColor ISO/IEC 15938-3 Binary Illumination Invariant Color Codec MP
47、EG7AdvancedFaceRecognition ISO/IEC 15938-3 Binary Advanced Face Recognition Codec MPEG7Perceptual3DShape ISO/IEC 15938-3 Binary Perceptual 3D Shape Codec Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bern
48、ie Not for Resale, 05/08/2007 08:17:54 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 15938-3:2002/Amd.2:2006(E) 6 ISO/IEC 2006 All rights reserved Replace Table 1 in subclause 5.2.4 with: Table 1 Assignment of IDs to descriptors ID Descriptor 0 Forbidden 1 CameraMotion 2 ColorLayout 3 ColorSpace 4 ColorStructure 5 ColorQuantization 6 ContourShape 7 DominantColor 8 EdgeHistogram 9 FaceRecognition 10 GoFGoPColor 11 GridLayo