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GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA Data or information which help us perform one or more of the.

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Presentation on theme: "GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA Data or information which help us perform one or more of the."— Presentation transcript:

1 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA 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 Metadata Definition and Rationale: Boyko, Ernie. Statistical Metadata: A User Perspective. Open Forum on Metadata Registries. January 20, 2000.

2 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA SIMPLIFIED METADATA REPOSITORY DESIGN: Record Design Database Design Data Element Registration Database Population DISSEMINATION TO USERS DISSEMINATION TO OTHER REPOSITORIES

3 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA METADATA MAY BE: Intrinsic: Incorporated within information object Extrinsic: Located in a separate metadatabase with fielded link to information object

4 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA

5 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA RECORD DESIGN

6 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA A METADATA SCHEMA SHOULD: Precisely define the information object. Find the right information Be flexible, scalable, extensible Continued viability, as new formats come along; as creators and users change; as repositories are redesigned.

7 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA Interoperate with other metadata repositories Enable Data Sharing Be Machine-interpretable; Machine- creatable. For automatic metadata generation and automated data management A METADATA SCHEMA SHOULD:

8 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA METADATA SCHEMA INCLUDES: Three Types of Metadata (Digital Library Federation Architecture Committee) Descriptive: Discovery and Identification of Information Structural: Display and Navigation of Information. Administrative: Management and Preservation of Information

9 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA WEB KEYWORDS DIGITAL VIDEO RESPOSITORY DIGITIZED LECTURES KEYWORDS LIBRARY: Books, Journals MARC Metadata Format DESCRIPTIVE

10 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA WEB KEYWORDS DIGITAL VIDEO RESPOSITORY DIGITIZED LECTURES KEYWORDS LIBRARY: Books, Journals MARC Metadata Format DUBLIN CORE DESCRIPTIVE FUTURE: MPEG7

11 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA Books, Articles, web sites by Jean Hudgins Metadatabase - Dublin Core Record 1 DC.Creator Hudgins, Jean Record 70 DC.Contributor. Hudgins, Jean. Result Set: HUDGINS, JEAN…1999……………… HUDGINS, JEAN…1994……………... SEARCH & RETRIEVAL

12 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA BOOKS, ARTICLES, WEB SITES BY JEAN HUDGINS DATABASE: Dublin Core DC.Creator Hudgins, Jean. DC.Contributor Hudgins, Jean DATABASE: MARC 100 Hudgins, Jean. 700 Hudgins, Jean. HARVESTED KEYWORD: Jean Hudgins

13 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA DATA DISSEMINATION Z The End User Information Retrieval (Z39.50): Application Service Definition and Protocol Specification: Client/Server - allows different databases and search engines to talk. Enabled for MARC, Dublin Core RDF - Resource Description Framework Enables interoperability among metadata schemes, including the modular use of multiple schemes within a metadata record utilizing the XML namespace facility; Adds machine-interpretable semantics to the encoding, exchange and reuse of structured metadata;

14 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA XMI - End User or Repository Exchange Open information interchange model for exchange of models and data over the Internet in a standardized manner. XML-based. CWMI - Repository Exchange Common Warehouse Metadata Interchange - Request for Proposal issued. OMG Document ad/ Available from Provide a generic mechanism that can be used to transfer warehouse metadata. Should be object-oriented (CORBA) DATA DISSEMINATION

15 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA RECOMMENDATIONS: Dublin Core Descriptive Metadata Design Follow recommendations of Dublin Core Working Groups; Examine Usage of other Dublin Core communities: CIMI, EdNA, CORC; Crosswalk Crosswalk (map data elements) between Dublin Core and other metadata formats, esp. MARC & IMS Adapt to descriptive needs of digital video and audio

16 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA RECOMMENDATIONS: Display/Export Formats: Dublin Core Dublin Core / HTML Dublin Core /RDF MARC XML (create a DTD or DCD) IMS Metadatabase Design ODBC CORBA

17 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA From Description of Dublin Core Elements

18 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA GT DUBLIN CORE FOR AUDIO/VIDEO: DESIGN STRATEGY Support simple and qualified Dublin Core Fields Ease of Application vs. Precision of Access Support Domain Interoperability Crosswalk to MARC, EAD & IMS formats ; Align with MPEG7; Incorporate available best practices Use controlled (e.g. documented vocabularies)

19 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA BEYOND DUBLIN CORE: ADMINISTRATIVE METADATA: DIGITAL PERSISTENCE DIGITAL QUALITY EVALUATION

20 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA Digital Persistence: technology emulation recreate the technology needed to open and display migration path/backward compatibility standards backward compatible one or more version to allow migration of data interpolation technology interpolates to retrieve or enhance obsolete data

21 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA ADMINISTRATIVE METADATA Can Include: Encoding Information Encoding hardware: Computer (make&model; processor and speed; RAM) OS Video or Audio card Encoding software/version Editing software/version

22 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA ADMINISTRATIVE METADATA - SLIDE 2 Encoding Standard: MPEG level of service Vendor encoding profile File-Specific Information: Frame size (X x Y) Frames per second Color vs. Black & White Color Pixel Depth (8-bit, 16-bit, 32-bit) Data Rate

23 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA ADMINISTRATIVE METADATA - SLIDE 3 Audio channels (mono, stereo, Dolby, Surround Sound, etc.) Audio bit depth (8 bit, 16-bit, etc. (could combine with channels) Audio Rate (44 kHz, etc.) Analog Creation hardware Analog Input Device Input Format

24 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA GT DUBLIN CORE FOR VIDEO SAMPLE RECORD: Interview with Jimmy Carter, from the Georgia Tech Alumni Associations Living History Collection-- video interviews with prominent alumni. Three non-consecutive video segments are merged using dissolve transitions into one QuickTime 4.0 digital video file

25 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA Dublin Core may be expressed in: HTML (within META TAG) XML XML/RDF (identifies source for controlled vocabularies)

26 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA TITLE A name by which the resource is formally known Simple: DC.Title Qualified: DC.Title.Excerpt DC.Title.Sequence (Scene, Shot, Frame) D.C.Title.Main (GT will not use. DC.Title will be used for the main title) DC.Title.Alternative DC.Abbreviated DC.Title.Series DC.Title.Subtitle

27 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA CREATOR An entity primarily responsible for making the content of the resource Simple: DC.Creator Qualified: DC.Creator.Person DC.Creator.Organization DC.Creator.Event DC.Creator.Object Optional Expanded Qualifiers: Controlled vocabularies to further define the Creator or Contributor role. MARC-Relator list preferred. AAT Agent Facets, in singular form, as secondary.

28 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA SUBJECT The topic of the resource Simple: DC.Subject (Keywords is the default--no need to use scheme) Qualified: DC.Subject scheme =LCSH DC.Subject scheme=Getty AAT DC.Subject scheme=LCC DC.Subject scheme=LCNAF

29 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA DESCRIPTION A textual description of the item and its contents Simple: DC.Description Qualified: DC.Description.Content DC.Description.Summary

30 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA PUBLISHER As entity responsible for making the resource available. Simple: DC.Publisher (name as it appears on the item) Qualified: DC.Publisher.Place (place of publication (U.S. (city,state) Outside US: Country

31 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA CONTRIBUTOR An entity responsible for making contributions to the content of the resource Simple: contributor Qualified: contributor.person contributor.organization contributor.event contributor.object Optional Expanded Qualifiers: Controlled vocabularies to further define the Creator or Contributor role. MARC-Relator list (1st choice) AAT Agent Facets, in singular (2nd) { "@context": "http://schema.org", "@type": "ImageObject", "contentUrl": "http://images.slideplayer.com/2/697970/slides/slide_30.jpg", "name": "GEORGIA INSTITUTE OF TECHNOLOGY G.", "description": "Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA CONTRIBUTOR An entity responsible for making contributions to the content of the resource Simple: contributor Qualified: contributor.person contributor.organization contributor.event contributor.object Optional Expanded Qualifiers: Controlled vocabularies to further define the Creator or Contributor role. MARC-Relator list (1st choice) AAT Agent Facets, in singular (2nd)

32 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA DATE A date associated with an event in the life cycle of the resource. Standard interpretation: date associated with creation or availability. Format: ISO 8601 profile: YYYY-MM-DD Simple: DC.Date Qualified: DC.Date->Created DC.Date->Issued DC.Date->Accepted DC.Date->Acquired DC.Date->Available DC.Date->Valid DC.Date->DataGathered

33 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA Date - Slide 2 Date as used by GT conforms to the creation of the item (e.g. the digital file) in hand. Date is used in the DC.Coverage field to indicate date of the intellectual content, e.g. the date of the interview.

34 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA TYPE The nature or genre of the content of the resource GT Practice: Image.Moving (recommended for MPEG7). For videos with sound. If the sound has meaning independent of the visual image, a second field is used: Sound Genre is added as an independent field since the concepts of Nature and Genre are independent. Simple: DC.Type { "@context": "http://schema.org", "@type": "ImageObject", "contentUrl": "http://images.slideplayer.com/2/697970/slides/slide_33.jpg", "name": "GEORGIA INSTITUTE OF TECHNOLOGY G.", "description": "Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA TYPE The nature or genre of the content of the resource GT Practice: Image.Moving (recommended for MPEG7). For videos with sound. If the sound has meaning independent of the visual image, a second field is used: Sound Genre is added as an independent field since the concepts of Nature and Genre are independent. Simple: DC.Type

35 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA FORMAT The physical or digital manifestation of the resource. Format may include the media-type or dimensions (size, duration) of the resource Simple: DC. Format Media-type Best practice - use MIME GT will use separate fields for the independent concepts, media-type and dimensions. CIMI practice - use this field for any item that cannot be experienced without machine assistance. To be congruent with other DC implementations, GT will use DC.Format for media-type (MIME or MIME extension) and size/duration only. All other physical description information will appear in adminstrative metadata.

36 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA FORMAT - Slide 2 Media-type GT will use MIME, with the following extensions/extrapolations to MIME: multipart/SMILvideo/vnd.microsoft.avi video/vnd.quicktime video/mpeg1 video/mpeg2 video/mpeg4 video/vnd.miro.mjpegvideo/vnd.real Dimensions - size. In bytes. Optional second field, in Mbytes or Kbytes Dimensions - duration hours:minutes:seconds

37 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA FORMAT - slide 3 Format is used to identify the software and possibly hardware that might be needed to display or operate the resource Under Discussion to include in DC.Format fields: frames per second Data rate (Kbps/sec or Mbps/sec) { "@context": "http://schema.org", "@type": "ImageObject", "contentUrl": "http://images.slideplayer.com/2/697970/slides/slide_36.jpg", "name": "GEORGIA INSTITUTE OF TECHNOLOGY G.", "description": "Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA FORMAT - slide 3 Format is used to identify the software and possibly hardware that might be needed to display or operate the resource Under Discussion to include in DC.Format fields: frames per second Data rate (Kbps/sec or Mbps/sec)

38 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA IDENTIFIER An unambiguous reference to the resource within a given context Best Practice: string or number conforming to a formal identification system (e.g. URI, PURL, URL) Simple: DC.Identifier GT Practice: URL. For excerpts, segments, sequences, scenes or shots, the URL will end with the start time code of the first element. If SMPTE is available, it will be used. Otherwise, the notation will be hh:mm:ss, as determined by the playback device (e.g. VTR) or editing software (e.g. Adobe Premiere).

39 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA SOURCE A reference to a resource from which the present resource is derived. Best Practice: string or number conforming to a formal identification system (e.g. URI, PURL, URL) Simple: DC.Source CIMI practice is to use source when there is a direct parent/child relationship. GT will use only for direct parent/child relationships, including one-to-one format correspondence. Since the entire Carter interview is not digitized, there is no exact parent so the field is not used. The VHS interview appears in the DC.Relation field instead

40 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA LANGUAGE A language of the intellectual content of the resource Best practice: use RFC1766--a two-digit language code (e.g. en) taken from the ISO 639 standard, followed optionally by the country (e.g. en-uk). GT will use the country extension, because speech indexing programs in the future may be pronunciation-based. Simple: DC.Language Qualified: DC.Language->Dubbed DC.Language->Subtitled (the above are proposed extensions by GT. No working group currently exists for implementation.)

41 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA RELATION A reference to a related resource. An identifier of a second resource, and its relationship to the present resource. Used to reflect linkages and identify significant points in the hierarchy of surrogacy Best practice: string or number conforming to a formal identification system (e.g. URI, PURL, URL) Simple: DC.Relation

42 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA RELATION - slide 2 Qualified: DC.Relation->IsPartOf DC.Relation->HasPart (physical or logical) C.Relation->IsVersionOfDC.Relation->HasVersion DC.Relation->IsFormatOfDC.Relation->HasFormat (encoded version) DC.Relation->ReferencesDC.Relation->IsReferencedBy DC.Relation->IsBasedOnDC.Relation->IsBasisFor DC.Relation->RequiresDC.Relation->IsRequiredBy

43 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA COVERAGE The extent or scope of the content of the resource. Includes spatial location (e.g. country, geographic co-ordinates or time code) and temporal period (period label, date or date range) or jursidiction (e.g. a named administrative entity) Best Practice: Use a controlled vocabulary or standard, such as Getty Thesaurus of Geographic Names. SMPTE time code SMPTE 12M-1995 is preferred, but hh:mm:ss as derived from the playback source (VTR, etc.) or video editing software is acceptable when SMPTE is not readily available. Document the coverage source.

44 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA COVERAGE - slide 2 Simple: DC.Coverage Qualified: DC.Coverage->periodName DC.Coverage->placeName DC.Coverage->x x.min x.max DC.Coverage->y y.min y.max DC.Coverage->z z.min z.max DC.Coverage->polygon polygon.include polygon.exclude DC.Coverage->line DC.Coverage->3d 3d.exclude

45 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA COVERAGE - slide 3 Qualified:DC.Coverage->t t.min t.max

46 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA RIGHTS Information about rights held in and over the resource. Typically, a Rights element will contain a rights management statement for the resource, or reference a service providing such information. Rights information often encompasses Intellectual Property Rights (IPR), Copyright, and various Property Rights. Best Practice: Use a pointer (typically URL or URN) to a rights statement containing accessibility, reproduction constraints, copyright holder, and/or inclusion of credit line May vary according to type of material and type of restriction (e.g. Archival material; web-based class lecture)

47 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA RIGHTS slide - 2 Under Consideration: Use permanent file name/repository location, for DC.Identifer; Use an access page requiring password or digital certificate for DC.Rights. Simple: DC.Rights

48 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA XML - Record - Format - Draft

49 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA XML - Record - Format - Draft

50 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA XML - Record - Format - Draft

51 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA XML - Record - Format - Draft

52 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA XML - Record - Format - Draft

53 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA NEXT STEPS Add Administrative Metadata Refine Extended Dublin Core for Video Model Crosswalk to MARC, EAD SIM, IMS Test with Alumni Association Video Collection and other samples Develop Brief and Full Record Templates Publish XML DTD Request Comments from Library and Video Community Publish Best Practices for Digital Video document

54 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA Hunter, Jane and Liz Armstrong. A Comparison of Schemas for Video Metadata Representation Reggie Generates records in Dublin Core and RDF/Dublin Core. Provides a template for establishing a metadata registry. MetaWeb: Provides software for establishing a gateway to search distributed Dublin Core. Crosswalks between Formats: MORE INFORMATION

55 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA CORC: OCLC Cooperative Online Resource Catalog Project. Information entered in a template is cross-cataloged in MARC, Dublin Core and RDF/Dublin Core. Membership to libraries of any description at no charge through July 1, Currently available for search and display to non- members. Use for MARC, Dublin Core and DC/RDF examples DC.dot Generates records in Dublin Core and RDF/Dublin Core

56 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA Dublin Core Record--Draft

57 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA Dublin Core Record--Draft

58 GEORGIA INSTITUTE OF TECHNOLOGY G. Agnew & J.Hudgins April 6, 2000 DIGITAL VIDEO METADATA Dublin Core Record--Draft


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