DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 1 “ Data or information which help us perform one or more of the following functions with respect to data and information resources: Finding Interpreting/evaluating Accessing Analyzing Managing Preserving ” Boyko, Ernie. “Statistical Metadata: A User Perspective.” Open Forum on Metadata Registries. January 20, Definition of Metadata

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 2 Descriptive Metadata for DV  Dublin Core  MPEG-7

MODEL Record Structure Repository Design Data Element Registration Database Population Dissemination to Users Data interchange ( other repositories) Metadata is organized into repositories to facilitate shared information discovery and retrieval DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 3

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 4  “Lowest common denominator”  Promote interoperability  Every data element is optional, repeatable  Requires Application Profile DUBLIN CORE

METADATA RECORD Populated with meaningful information (“values”) Data Elements According to rules (“Schema”) Rules: Data element (e.g. controlled vocabulary; formatting; prescribed value list or formatting rule) Record structure: data element constraints: (mandatory, recommended, optional) (repeatable) (order of elements) DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 5

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 6 Metadata Element Set v Fifteen optional, repeatable elements

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 7 ViDe Video Access Working Group Application Profile for Digital Video: Select: Reports & Documents Includes demonstration database in MS Access 2000

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 8 Creator / Contributor / Publisher Agents and Roles. Recommend addition of qualifier “role” with controlled vocabulary such as MARC Relator list: XML Examples Spielberg, Steven Agnew, Grace Trimark Films

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 9 Title – recommendations for creation and format of titles for Segments; Excerpts; Trailers; Series (e.g. television series) XML Examples: Jurassic Park. Trailer Jimmy Carter Interview. Excerpt Flintstones. Season 1, Episode 7

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 10 Date – date of an event in the lifecycle of the resource Add Qualifier “withdrawn” to support automatic removal of video files and automatic notification of removal. XML Example:

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 11 Description Add the qualifier “genre” with a recommended list of values from ViDe: Examples from List Art work (video art); Classroom lecture; Diagnostic or surgical procedure; Instrument or sensor reading; Newscast; Panel discussion; Videoconference session … XML Example: videoconference session

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 12 Format – The physical or digital manifestation of the resource. DCMI Qualifiers:  FormatExtent  FormatMedium

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 13 FormatExtent ViDe recommends the following subelements, separated by “semi-colon space”:  duration (hours, minutes, seconds);  frames per second (KB or MB);  data rate (Kbps or Mbps);  sound or silent;  color or b&w;  file size (KB, MB or GB)

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting g 14 Start and stop times may be included for excerpts from sequential media XML Examples: 1 min., 47 sec.; 30 fps; 200 Kbps; sound; b&w; 296 MB 00:24:03;1 00:25:50;7

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 15 FormatMedium: ViDe Recommended Extensions to MIME type: application/vnd.quicktimeVR application/vnd.flash video/mpeg1 video/mpeg2 video/mpeg4 XML Example: video/mpeg1

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 16 Relation: Related resources. DCMI recommends a unique identifier. ViDe is using the Relation field to bring together different instantiations of resource:  Analog original (e.g. VHS tape)  Preservation Format (e.g. Beta-SP or DigiBeta)  Digital Master (e.g. uncompressed AVI)  Use copy (e.g. MPEG1, MPEG4, RealVideo file, etc.

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 17 ViDe recommends the following qualifiers, which are formatted like the original Dublin Core elements. All qualifiers are optional except Relation.Identifier, which must be included if the Relation element is used: RelationTitle RelationIdentifier RelationFormatMedium RelationFormatExtent

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 18 Type – nature or genre of the content of the resource. DCMI currently recommends “image” be used for video as part of their recommended list of types. ViDe proposes adding : animation video to the list.

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 19 This Presentation in XML: Digital video access strategies Fall 2001 Internet2 Virtual Members Meeting. Presentation Agnew, Grace Internet

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting min.; 15 fps; 200 Kbps; sound; color; 340 MB video/vnd.real video lecture or speech This video is copyright-protected and is available for replay only. Contact the author, Grace Agnew, for requests for reproduction in any form. Dublin Core MPEG-7 Multimedia description content interface ViDe. Video Access Working Group

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 21 ppt application/vnd.ms-powerpoint 29 slides; 30 KB

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 22 MPEG-7 “Multimedia Content Description Interface” MPEG ISO/IEC Standard in Data Definition Language (DDL – XML Schema) creates Description Schemes (such as creation, usage, etc.) Descriptors Populated by

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 23 Content OrganizationCollections Models Content Management/Description Creation & Production Usage Media Structure Semantics Navigation & AccessSummaries Views Variations User InteractionUser Preferences User History MPEG-7 Description Schemes ROLESROLES SCHEMESSCHEMES

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 24 DDL = XML Schema Language Efficient transport & storage Synchronization between content and description Extrinsic/Intrinsic Textual format/Binary Format MPEG-7

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 25

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 26 Collaborative Projects  Develop MPEG-7Application Profile for Descriptive Metadata using Creation & Production, Media, and Usage DSs. Reference: Hunter, Jane"A Proposal for the Integration of Dublin Core and MPEG-7", SO/IEC JTC1/SC29/WG11 M6500, 54th MPEG Meeting, La Baule, October  Develop a Digital Video Portal supporting Dublin Core and MPEG-7 descriptive metadata – ideally as input and output formats. Would support data mining via the Open Archives Initiative Protocol. Also would be used to develop and test directory-based Digital Rights Management on distributed video assets. Learning and research tool for video access methodologies.

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 27  Use Segment DS and SegmentDecomposition DS to create interoperable component videos and “bookmarks” from video files Collaborative Projects Man in a funny hat. Jones, Tommy. 00:27:13;7 Man with a funny moustache. Jones, Tommy. 00:27:13;7 Disclaimer: MPEG-7 encoding is for illustration only and may not represent accurate encoding according to the schema

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 28 Collaborative Projects  Use SequentialSummary DS and HighlightSegment DS to create a keyframe summary or highlights component video

DIGITAL VIDEO ACCESS STRATEGIES Grace Agnew Virtual Members Meeting 29 Collaborative Projects  Use the Collection DS to concatenate materials “on the fly” into a collection, e.g. pulling images, video, audio and text together to create a term paper. Scenario: A student is doing a paper on WWII and wants to include photographs of the war in Europe as well as video footage from a documentary. Fair use allows him via a DRM implementation to create a 5 second component video, which he creates as a named segment and concatenates into a collection using a menu-driven form.