ISO/IEC 15938-5:2003/Amd 2:2005

Information technology - Multimedia content description interface - Part 5: Multimedia description schemes - Amendment 2: Multimedia description schemes user preference extensions

Technologies de l'information — Interface de description du contenu multimédia — Partie 5: Schémas de description multimédia — Amendement 2: Extensions de préférence d'utilisateur des schémas de description multimédia

General Information

• Status: Published
• Publication Date: 17-Feb-2005
• ICS: 35.040 - Information coding
• ICS: 35.040.40 - Coding of audio, video, multimedia and hypermedia information
• Technical Committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
• Drafting Committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
• Current Stage: 6060 - International Standard published
• Start Date: 18-Feb-2005
• Due Date: 05-Nov-2005
• Completion Date: 05-Nov-2005

Relations

• Consolidated By: ISO 12855:2015 - Electronic fee collection - Information exchange between service provision and toll charging
• Effective Date: 06-Jun-2022
• Amends: ISO/IEC 15938-5:2003 - Information technology - Multimedia content description interface - Part 5: Multimedia description schemes
• Effective Date: 06-Jun-2022
• Child: ISO/IEC 15938-5:2003 - Information technology - Multimedia content description interface - Part 5: Multimedia description schemes
• Effective Date: 15-Apr-2008

Overview

ISO/IEC 15938-5:2003/Amd 2:2005 is an amendment to the MPEG-7 framework (the ISO/IEC 15938 series) that updates Multimedia Description Schemes (MDS) with user-preference extensions. The amendment refines XML datatypes and semantics used to describe media resources - notably the LogicalUnitLocator (for nested and hierarchical logical units) and enhancements to the Person and PersonName description schemes. These updates improve precise addressing of media fragments and richer person metadata for interoperable multimedia description.

Key topics and technical requirements

• LogicalUnitLocatorType (XML Schema syntax & semantics)
  • Extends MediaLocator to support nested logical units (e.g., DVD chapters, CD disks/tracks).
  • Supports multiple locator elements whose semantics form the union of specified logical units.
  • Allows SubUnit elements (type MediaLocator) for hierarchical nesting and mixed locator types (temporal, logical).
  • Supports ReferenceUnit with reference mechanisms (XPath, idref) to point into XML resources.
  • Examples illustrate addressing (chapter 1 on DVD), nested disk->track hierarchies, and temporal fragments (e.g., a 30s point in track 3).
• PersonType (Person DS)
  • Expanded syntax: multiple Name or NameTerm elements, Affiliation (Organization/Group or references), Citizenship, Address/AddressRef, ElectronicAddress, PersonDescription, Nationality.
  • Supports classification-driven NameTerm to integrate controlled vocabularies.
• PersonNameType
  • Name components include GivenName, LinkingName (e.g., “van”, “de”), FamilyName, Title, Salutation, Numeration.
  • Attributes for validity periods (dateFrom, dateTo), type (former/variant/main), and xml:lang.
  • NameComponentType supports initials and abbreviation attributes.

Applications and who uses it

• Content metadata architects and MPEG-7 implementers who need fine-grained media addressing.
• Digital libraries, broadcasters, archives, and OTT platforms for precise chapter/track indexing, segment-level metadata and retrieval.
• Search, recommendation and personalization systems that rely on hierarchical locators and user-preference-aware multimedia descriptions.
• Developers of metadata tools, XML schema validators, and media asset management systems integrating MPEG-7 descriptors.

Related standards

• Other parts of the ISO/IEC 15938 (MPEG-7) series (Multimedia Content Description Interface) - use in combination for comprehensive media description.
• XML and XPath standards for reference mechanisms used by ReferenceUnit.

Keywords: ISO/IEC 15938-5, MPEG-7, LogicalUnitLocator, PersonType, PersonName, media metadata, multimedia description schemes, XML schema, media indexing, temporal segmentation, XPath.

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 15938-5
First edition
2003-05-15
AMENDMENT 2
2005-02-15
Information technology — Multimedia
content description interface —
Part 5:
Multimedia description schemes
AMENDMENT 2: Multimedia description
schemes user preference extensions
Technologies de l'information — Interface de description du contenu
multimédia —
Partie 5: Schémas de description multimédia
AMENDEMENT 2: Extensions de préférence d'utilisateur des schémas
de description multimédia
Reference number
ISO/IEC 15938-5:2003/Amd.2:2005(E)
©
ISO/IEC 2005
ISO/IEC 15938-5:2003/Amd.2:2005(E)
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ii © ISO/IEC 2005 – All rights reserved

ISO/IEC 15938-5:2003/Amd.2:2005(E)
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 participate 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, 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 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 committee 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.
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 15938-5:2003 was prepared by Joint Technical Committee ISO/IEC JTC 1,
Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia
information.
© ISO/IEC 2005 – All rights reserved iii

ISO/IEC 15938-5:2003/Amd.2:2005(E)

Information technology — Multimedia content description
interface —
Part 5:
Multimedia description schemes
AMENDMENT 2: Multimedia description schemes user preference
extensions
Except where noted otherwise, add the corresponding subclauses of ISO/IEC 15938-5:2003 with the content
of the following subclauses hereafter:
6.5.7 LogicalUnitLocator datatype
6.5.7.1 Introduction
The locating of nested units is supported by defining an explicit structure to the LogicalUnitLocator that
allows media locators to be included as sub-units. Furthermore, by supporting hierarchical structures directly
through this nesting, the LogicalUnitLocator retains a clear semantics when multiple locators are
sequenced within a description to identify the union of logical units.
6.5.7.2 LogicalUnitLocator datatype syntax
Syntax of the LogicalUnitLocatorType:














use="required"/>








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ISO/IEC 15938-5:2003/Amd.2:2005(E)







6.5.7.3 LogicalUnitLocator datatype semantics
Semantics of the LogicalUnitLocatorType:
Name Definition
LogicalUnitLocatorType
Describes the location of logical unit of a media resource, such as a “track”
of a CD or “chapter” of a DVD. The localization within a target resource
can be specified using either LogicalUnit or ReferenceUnit
elements. In the case that multiple instances of these elements are
included within the description, the result is the union of the individual
locator elements, e.g., chapter 1 and chapter 2 of a DVD. Nested logical
units should be described using the SubUnit elements of each locator
element.
LogicalUnit Describes the localization of a logical unit by identifying the name of the
logical unit, e.g., “chapter” and value, e.g., “2”.
unit
Identifies the unit, e.g., “chapter” using termReferenceType. The unit
name can belong to a classification scheme in order to enforce a
controlled vocabulary. The termReferenceType also allows names to
be used that do not belong to classification schemes when needed.
value
Describes the value of the unit, e.g., “2” using string.
SubUnit
Describes nested units located within the parent logical unit, e.g., “section
2” of “chapter 1”. SubUnit is of type MediaLocator to allow non-logical
sub-units to be described.
ReferenceUnit
Describes the localization of a logical unit by identifying reference of the
logical unit, such as by xpath expression.
referenceGrp
Identifies the reference of the logical unit using xpath, idref, etc.

6.5.7.4 Example (informative)
The following example describes the logical unit of a “chapter” of a DVD. This example assumes that a
classification scheme “urn:dvd:logicalunit” has been defined for DVDs that identifies the names of its logical
units, e.g., “chapter”.








2 © ISO/IEC 2005 – All rights reserved

ISO/IEC 15938-5:2003/Amd.2:2005(E)



The following example describes the logical unit of a CD that corresponds to track 8 from disk 2. This example
assumes that a classification scheme has been defined for CDs that identifies the names of its logical units.
Furthermore, this example shows the explicit use of hierarchy of units to indicate that the track is from disk 2.
The LogicalUnitLocator describes the increasing granularity and nesting of logical units in the case of
hierarchical relationship using the SubUnit element.















The following example uses the ReferenceUnit xpath reference mechanism of LogicalUnitLocator
to address a fragment of an XML resource.











The following example uses the ReferenceUnit xpath reference mechanism of LogicalUnitLocator
to address a fragment of an XML resource.











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ISO/IEC 15938-5:2003/Amd.2:2005(E)
The following example describes a fragment that corresponds to a time point at 30 seconds from the
beginning of the third track of an Audio CD.








The following example describes the first 15 seconds of all the audio tracks of the second CD disk in a three
disk CD Audio package.







Except where noted otherwise, replace the corresponding subclauses of ISO/IEC 15938-5:2003 with the
content of the following subclauses hereafter:

7.5.3.2 Person DS syntax











type="mpeg7:ControlledTermUseType"/>




type="mpeg7:OrganizationType"/>
type="mpeg7:ReferenceType"/>
type="mpeg7:PersonGroupType"/>
type="mpeg7:ReferenceType"/>



minOccurs="0" maxOccurs="unbounded"/>




type="mpeg7:ElectronicAddressType"
minOccurs="0" maxOccurs="unbounded"/>
minOccurs="0"/>
minOccurs="0"/>

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7.5.3.3 Person DS semantics
Semantics of the PersonType:
Name Definition
PersonType Describes an individual person.
Name
Describes a name associated with this person. Multiple names are allowed. The
interpretation of different names is not defined in this standard.
NameTerm Describes a name associated with this person using a term from a classification
scheme.
Affiliation
Describes an organizations or person groups with which this person is affiliated.
For example, the company for which the individual works, the sports team on which
they place, and so on. A person may be affiliated with more than one organization
or group.
Organization
Describes an organization that this person is affiliated with.
OrganizationRef
Describes a reference to an organization that this person is affiliated with.
PersonGroup Describes a group that this person is affiliated with.
PersonGroupRef
Describes a reference to a person group that this person is affiliated with.
Citizenship
Describes the countries in which this person is a legal citizen. A person may hold
multiple citizenships. The legal definition of citizenship is not defined in this
standard and may vary from country to country.
Address
Describes a place that is the address where this person can be located.
AddressRef Describes a reference to a place that is the address where this person can be
located.
ElectronicAddress
Describes the electronic address information for this person.
PersonDescription Describes information about a person to distinguish them from other persons of the
same name - e.g. farmer, poet, American dentist
Nationality Describes the nationality of an individual by origin, birth, or naturalization

7.5.6 PersonName datatype
• The LinkingName element is Name Component that describes a link used between family, given and
other names (e.g. den, ten, van den, von)
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ISO/IEC 15938-5:2003/Amd.2:2005(E)
• The Salutation element is Name Component that describes an individual's salutation or title. Eg. Mr.,
Mrs., Sir. This is distinct fro the Title element which is reserved for terms used personal honours (e.g.,
F.R.S.) and qualifications (e.g., Professor).

7.5.6.1 Introduction
The PersonName datatype describes the name of a person, whether historical, existing, or fictional.
7.5.6.2 PersonName datatype syntax









minOccurs="0"/>
minOccurs="0"/>

minOccurs="0"/>

























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ISO/IEC 15938-5:2003/Amd.2:2005(E)
7.5.6.3 PersonName datatype semantics
Semantics of the PersonNameType:
Name Definition
PersonNameType
Describes the name of a person.
GivenName
Describes the given name(s) of a person. At least one given name shall be
specified in a name description. Given names include middle names and/or

middle initials, if known. Given names may be initials or abbreviation if only
these elements are known.
Linking Name
Describes a link used between family, given and other names (e.g. den, ten, van
den, von)
FamilyName
Describes the family name(s) of an individual. This may be a surname, clan
name, and so forth. The use of this element is optional since not all person
names include a family name.
Title
Indicates the titles that are part of the name of an individual, such as honorifics.
This part of a name is optional.
Salutation
Descries an individual's salutation or title. Eg. Mr., Mrs., Sir
Numeration
Indicates a roman numeral or other numeric designation that is part of the name
of an individual. For example, the "III" in "William James III."
dateFrom
Indicates the date starting from which this name came into use (e.g. date of
birth, date of change to a new name, and so forth). If not specified, then no so
such date is known.
dateTo
Indicates the date starting from which this name ceased to be used (death, old
name after name change, etc). If not specified, then use of the name is still
current.
type
Indicates the type of name using one of the following values:
• former – The name is no longer used.
• variant – The name is a variation of the official or most commonly used
name. For example, an abbreviated form of the official name, or an
informal nickname.
• main –The name is either the official one or is widely known and used.
xml:lang
Describes the language in which the name is described. This need not be the
same as the original language of the name. For example, a Japanese name can
be described in English.
Semantics of the NameComponentType:
Name Definition
NameComponentType
Describes a component of a name.
Initial
Indicates the initial for the name component. Initials are a truncated form of the of
the name component.
abbrev
Indicates an alternative shorter form for a name component. For example, "Bill" for
"William."
8 © ISO/IEC 2005 – All rights reserved

ISO/IEC 15938-5:2003/Amd.2:2005(E)
7.5.7.2 ElectronicAddress datatype syntax





























7.5.7.3 ElectronicAddress datatype semantics
Semantics of the ElectronicAddressType:
Name Definition
ElectronicAddressType Describes an electronic address.
Telephone
Describes a telephone number.
type
Indicates a particular type of phone number, if known:
• central – The telephone number of a central switchboard.
• secondary – The telephone number is a mobile number (e.g., cell
phone).
Fax Describes a fax number.
Email
Describes an E-mail address.
Url
Describes a URL address, such as a home page.

© ISO/IEC 2005 – All rights reserved 9

ISO/IEC 15938-5:2003/Amd.2:2005(E)
7.6.2.2 Place DS syntax









minOccurs="0" maxOccurs="unbounded"/>
minOccurs="0" maxOccurs="unbounded"/>
minOccurs="0" maxOccurs="unbounded"/>
minOccurs="0"/>








minOccurs="0" maxOccurs="unbounded"/>
minOccurs="0" maxOccurs="unbounded"/>
minOccurs="0" maxOccurs="unbounded">












minOccurs="1" maxOccurs="unbounded"/>
type="mpeg7:TextualType"
minOccurs="0"/>







="0" />
10 © ISO/IEC 2005 – All rights reserved

ISO/IEC 15938-5:2003/Amd.2:2005(E)
="0" />
="0" />

minOccurs ="0" />
minOccurs ="0" />
type="mpeg7:TextualType"
minOccurs="0"/>





minOccurs="0"/>



="0" />
/>
="0" />




type="mpeg7:ElectronicAddressType"
minOccurs="0" maxOccurs="unbounded"/>





7.6.2.3 Place DS semantics
Semantics of the PlaceType:
Name Definition
PlaceType Describes a location.
Name
Describes a name of the place. Multiple values are allowed to support
multiple languages.
NameTerm Describes a name of the place using a term from a classification scheme.
PlaceDescription
The textual description of a place.
© ISO/IEC 2005 – All rights reserved 11

ISO/IEC 15938-5:2003/Amd.2:2005(E)
Name Definition
Role
Indicates the role of the place, such as "real location," "fictional setting," or
"shooting location."
GeographicPosition
Describes the geographic position of the place.
Point
Describes a geographic point in the place.
datum Indicates the geodetic datum system used in the description of
GeographicPosition (optional). Possible values include "wgs84“ (World
Geodetic System 1984), "itrf“ (International Terrestrial Reference Frames),
"tokyo“ (Tokyo Datum) and so on.
AstronomicalBody
Describes the name of the astronomical body on which the location exists.
For example, "Earth."
Region
Describes the region of the place specified using the appropriate
ISO 3166-2 region code.
AdministrativeUnit Describes the name of the administrative units to which the place belongs-
e.g. a city, a town, a village, or even a fictional unit as the USS Enterprise.
The administrative unit is a place within the region specified. More than
one administrative unit may be specified. In this case the order of
administrative is interpreted as being from largest to smallest. In other
words, each administrative unit should contain the subsequent
administrative unit.
Type
Indicates the type of administrative unit being identified (e.g. "town," "city,"
"spaceship").
PostalAddress Describes the postal address including street (or square) and house
number or name of the place. The postal address does not need to include
the information specified by other elements of the Place DS, such as
country, region, or administrative unit. However, such information may be
included in this element.
AddressLine
Describes one line of the postal address of the place. The division of the
postal address into lines is not specified by this standard.
PostingIdentifier Describes the postal identifier for the place (optional). For example, a ZIP
code or Postal code.
StructuredPostalAddress Describes a postal address by division into individual structured elements.
StreetNumber Describes the alphanumeric street number of an address. (e.g. “1” in 1
Downing Street)
StreetName Describes street or thoroughfare name
PostalTown Describes the postal town name
City
Describes city of the address
StateProvinceCounty
Describes the state, province or county of the address
InternalCoordinates Describes the internal coordinates of the place within the specified postal
address (e.g. an apartment or room number, the drawing room, etc).
StructuredInternalCoord
Describes a structured set of internal coordinates of the place within the
inates address, (e.g., Ballroom A, Empire State Building)
12 © ISO/IEC 2005 – All rights reserved

ISO/IEC 15938-5:2003/Amd.2:2005(E)
Name Definition
RoomNumber
Describes the alphanumeric room, suite or apartment number of an
address (e.g., A)
RoomName
Describes the room, suite or apartment name of an address. (e.g.,
Ballroom)
BuildingName Describes the building name of an address. (e.g., Empire State Building)
xml:lang
Indicates the language used to describe the place.

Except where noted otherwise, replace the corresponding subclauses of ISO/IEC 15938-5:2003 with the
content of the following subclauses hereafter:
11.4.2.2 StillRegion DS syntax
















type="mpeg7:MediaRelTimePointType"/>
type="mpeg7:MediaRelIncrTimePointType"/>



type="mpeg7:VisualDSType"/>
type="mpeg7:GridLayoutType"/>
type="mpeg7:IlluminationInvariantColorType"/>

minOccurs="0"/>
type="mpeg7:StillRegionSpatialDecompositionType"
minOccurs="0" maxOccurs="unbounded"/>




© ISO/IEC 2005 – All rights reserved 13

ISO/IEC 15938-5:2003/Amd.2:2005(E)
11.4.2.3 StillRegion DS semantics
Semantics of the StillRegionType:
Name Definition
StillRegionType
Describes an image or a 2D spatial region of an image or a video frame.
The still region need not be connected in space. The StillRegion DS
uses visual description tools (VisualDType and VisualDSType) to
describe the visual features of the still region. The spatial localization or
composition of the still region is optionally described using a choice of
SpatialLocator or SpatialMask. StillRegionType extends
SegmentType.
SpatialLocator Describes the spatial localization of the still region using a
RegionLocatorType (defined in ISO/IEC 15938-3) (optional). The
spatial locator describes a spatially connected sub-region that includes
the spatial components of the still region.
SpatialMask
Describes a 2-D spatial mask that defines the spatial composition of the
still region (optional). The still region is formed from the set of sub-
regions described by the SpatialMask. If absent, the still region is
composed of the single connected region defined by the
SpatialLocator.
MediaTimePoint
Indicates the time point of a still region from video using
mediaTimePointType (optional).
MediaRelTimePoint
Indicates the time point of a still region from video using
MediaRelTimePointType (optional).
MediaRelIncrTimePoint Indicates the time point of a still region from video using
MediaRelIncrTimePointType (optional).
VisualDescriptor
Describes visual features of the still region using a visual descriptor
(optional). The specific VisualDTypes are defined in ISO/IEC 15938-
3.
VisualDescriptionScheme
Describes visual features of the still region using a visual DS (optional).
The specific VisualDSTypes are defined in ISO/IEC 15938-3.
GridLayoutDescriptors
Describes visual features of the sub-regions resulting from a grid
decomposition of the still region (optional). GridLayoutDescriptors
descriptions only apply to rectangular still regions. The
GridLayoutType is defined in ISO/IEC 15938-3.
IlluminationInvariantColor Describe illumination compensated color feature of the segment
(optional). The IlluminationInvariantColorType is defined in
ISO/IEC 15938-3/Amd.1.
MultipleView Describes visual features of a 3D object depicted in the 2D still region
as seen from one or more viewing positions or angles (optional). The
MultipleViewType is defined in ISO/IEC 15938-3.
SpatialDecomposition
Describes a spatial decomposition of the still region into one or more
sub-segments (optional).
14 © ISO/IEC 2005 – All rights reserved

ISO/IEC 15938-5:2003/Amd.2:2005(E)
11.4.8.2 VideoSegment DS syntax
















type="mpeg7:VisualDSType"/>
type="mpeg7:VisualTimeSeriesType"/>


minOccurs="0"/>
minOccurs="0" maxOccurs="unbounded"/>

type="mpeg7:VideoSegmentSpatialDecompositionType"/>
type="mpeg7:VideoSegmentTemporalDecompositionType"/>

type="mpeg7:VideoSegmentSpatioTemporalDecompositionType"/>

type="mpeg7:VideoSegmentMediaSourceDecompositionType"/>





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ISO/IEC 15938-5:2003/Amd.2:2005(E)
11.4.8.3 VideoSegment DS semantics
Semantics of the VideoSegmentType:
Name Definition
VideoSegmentType
Describes a video or a temporal segment of a video. The
VideoSegment DS uses visual description tools (VisualDType and
VisualDSType) to describe the visual features of the video segment.
The temporal localization or composition of the video segment is
optionally described using a choice of MediaTime or TemporalMask.
VideoSegmentType extends SegmentType.
MediaTime
Describes the temporal localization of the video segment using
MediaTimeType (optional). The temporal locator describes a
temporally connected sub-interval by specifying the start time and the
duration of the video segment. The sub-interval describes a temporal
bounding box that may bound a set of individual video segments. If
neither MediaTime nor TemporalMask is described, then the video
segment refers to the entire video.
TemporalMask
Describes a temporal mask that defines the temporal composition of
the video segment. (optional). The video segment is formed from the
set of sub-intervals described by the TemporalMask. If absent, the
video segment is composed of the single connected interval defined by
MediaTime.
VisualDescriptor
Describes visual features of the video segment using a visual
descriptor (optional). The specific VisualDTypes are defined in
ISO/IEC 15938-3.
VisualDescriptionScheme
Describes visual features of the video segment using a visual
description scheme (optional). The specific VisualDSTypes are
defined in ISO/IEC 15938-3.
VisualTimeSeriesDescriptor Describes a temporal sequence of visual features in the video
segment (optional). The VisualTimeSeriesDescriptor applies
only in the case of a connected video segment. The
VisualTimeSeriesDescriptorType is defined in
ISO/IEC 15938-3.
GofGopFeature Describe representative visual features in the segment (optional). The
GofGopFeatureType is defined in ISO/IEC 15938-3/Amd.1.
MultipleView
Describes visual features of a 3D moving physical object depicted in
the video segment as seen from one or more viewing positions or
angles (optional). The MultipleViewType is defined in
ISO/IEC 15938-3.
Mosaic Describes a mosaic constructed from the video segment (optional).
SpatialDecomposition
Describes a spatial decomposition of the video segment into one or
more sub-segments (optional).
TemporalDecomposition Describes a temporal decomposition of the video segment into one or
more sub-segments (optional).
16 © ISO/IEC 2005 – All rights reserved

ISO/IEC 15938-5:2003/Amd.2:2005(E)
Name Definition
SpatioTemporalDecomposition
Describes a spatio-temporal decomposition of the video segment into
one or more sub-segments (optional).
MediaSourceDecomposition Describes a media source decomposition of the video segment into
one or more sub-segments (optional).

11.4.10.2 MovingRegion DS syntax










type="mpeg7:SpatioTemporalLocatorType"/>
type="mpeg7:SpatioTemporalMaskType"/>



type="mpeg7:VisualDSType"/>
type="mpeg7:VisualTimeSeriesType"/>


minOccurs="0"/>

type="mpeg7:MovingRegionSpatialDecompositionType"/>
type="mpeg7:MovingRegionTemporalDecompositionType"/>

type="mpeg7:MovingRegionSpatioTemporalDecompositionType"/>

type="mpeg7:MovingRegionMediaSourceDecompositionType"/>





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ISO/IEC 15938-5:2003/Amd.2:2005(E)
11.4.10.3 MovingRegion DS semantics
Semantics of the MovingRegionType:
Name Definition
MovingRegionType
Describes a video or a spatio-temporal region of a video. The moving
region need not be connected in space or time. The MovingRegion
DS uses visual description tools (VisualDType and VisualDSType)
to describe the visual features of the moving region. The spatio-
temporal localization or composition of the moving region is optionally
described using a choice of SpatioTemporalLocator or
SpatioTemporalMask. MovingRegionType extends
SegmentType.
SpatioTemporalLocator
Describes the spatio-temporal localization of the moving region using
SpatioTemporalLocatorType (optional). The spatio-temporal
locator describes a spatio-temporally connected sub-region that
includes the spatio-temporal components of the moving region. The
SpatioTemporalLocatorType is defined in ISO/IEC 15938-3.
SpatioTemporalMask
Describes a spatio-temporal mask that defines the spatio-temporal
composition of the moving region (optional). The moving region is
formed from the set of sub-regions described by the
SpatioTemporalMask. If absent, the moving region is composed of
the single connected region defined by the
SpatioTemporalLocator.
VisualDescriptor Describes the visual features of the moving region using a visual
descriptor (optional). The specific VisualDTypes are defined in
ISO/IEC 15938-3.
VisualDescriptionScheme Describes the visual features of the moving region using a visual
description scheme (optional). The specific VisualDSTypes are
defined in ISO/IEC 15938-3.
VisualTimeSeriesDescriptor Describes a temporal sequence of visual features in the moving region
(optional). The VisualTimeSeriesDescriptor applies only in the
case of a connected moving region. The VisualTimeSeriesType is
defined in ISO/IEC 15938-3.
GofGopFeature
Describe representative visual features in the segment (optional). The
GofGopFeatureType is defined in ISO/IEC 15938-3/Amd.1.
MultipleView
Describes visual features of a 3D moving physical object depicted in
the moving region as seen from one or more viewing positions or
angles (optional). The MultipleViewType is defined in
ISO/IEC 15938-3.
SpatialDecomposition Describes the spatial decomposition of the moving region into one or
more sub-segments (optional).
TemporalDecomposition
Describes the temporal decomposition of the moving region into one
or more sub-segments (optional).
SpatioTemporalDecomposition
Describes the spatio-temporal decomposition of the moving region into
one or more sub-segments (optional).
18 © ISO/IEC 2005 – All rights reserved

ISO/IEC 15938-5:2003/Amd.2:2005(E)
Name Definition
MediaSourceDecomposition
Describes the media source decomposition of the moving region into
one or more sub-segments (optional).

14.2.2.2 ContentCollection DS syntax