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Transcript of Access Strategies for Digital Video and Digital Rights Management Grace Agnew, Georgia Institute of...
Access Strategies for Digital Video and Digital Rights Management
Grace Agnew, Georgia Institute of
Technology
Mairéad Martin, University of Tennessee
April 10, 2023
22
Overview
• About The Video Development Initiative (ViDe)
• The ViDe Video Access Working Group– Projects– Next Steps
• Digital Rights Management Initiative
33
Video Development Initiative• Founded in 1998 to promote the
use of digital video in higher education
• Working Groups:– Videoconferencing:
•ViDeNet, Internet2 Commons, Videoconferencing Cookbook
– MPEG-4– Data Collaboration– Video Access
44
Managing Digital Video Content Workshop• Co-sponsored by CNI, I2, SURA and
ViDe• Keynote speakers:
– Cliff Lynch (CNI)– Jane Hunter (MPEG-7)
• Asset management, DC for digital video (ViDe application profile), rights metadata, OAI, digital video accessibility, MPEG-7, METS
• www.vide.net/conferences
55
Why does digital video matter?• Key medium for elearning• Dramatic, compelling• Active learning medium,
engaging multiple senses
66
Why is digital video different?• Complex requirements:
Sequential medium, high bandwidth, hardware/software requirements,
• Isolated from the educational mainstream
• Frequently composed of multiple, synchronized channels, eg., multiple video and audio feeds
77
ViDe Video Access WG
• International membership of librarians, engineers, IT professionals
• Collaborates with I2 and CNI• Projects:
– Application Profile for Dublin Core– Application Profile and Advanced
Indexing Strategies with MPEG-7 and METS
88
Video Access Strategies• Discovery and access• Object use
– Annotation– Bookmarking– Gathering into collections
• Use management– Safeguarding intellectual
property
99
Discovery and Access: Dublin Core 15 Optional, Repeatable
Elements
Enables interoperability:
Mapping
Data Sharing
Customize Use through Application Profile
1010
Dublin Core:Interoperability and Mapping Standard
GEORGIA INSTITUTE OFTECHNOLOGY
G. Agnew & J .Hudgins
April 6, 2000
DIGITAL VIDEO METADATADIGITAL VIDEO METADATA
WEBKEYWORDS
DIGIT AL VIDEORESP OSITORY
DIGIT IZEDLECT URES
KEYWORDS
LIBRARY:
Books, JournalsMARC Metadata Format
DUBLINCORE
DESCRIPTIVEDESCRIPTIVE
FUT URE:MP EG7
1111
Dublin Core: “Base” Standard
D
C
MPEG-7FDGCGeographic metadata
DRM
Structure Map (e.g. METS)
1212
Use of Object: MPEG-7 Multimedia Content Description Interface
MPEG-7
TextualEncoder
MPEG-7
TextualDecoder
Contentdescription
MPEG-7
BinaryEncoder
MPEG-7
BinaryEncoder
Content
Access Unit -Textual Format
Access Unit
BinaryFormat
1313
Standards based segmenting and collection building
Standards based annotation and bookmarking
Asset Management: Beyond Description: MPEG-7 and METS
<VideoSegment id=“S1”>
<TextAnnotation> <FreeTextAnnotation>Man in a funny hat. </FreeTextAnnotation></TextAnnotation>
<CreationMetaInformation><Creation><Creator>Jones, Tommy.</Creator></Creation></CreationMetaInformation>
<MediaTime><MediaTimePoint>00:27:13;7</MediaTimePoint></MediaTime>
<MediaDuration><00:10:05;3></MediaDuration>
</VideoSegment>
<VideoSegment id=“S2”>
<TextAnnotation> <FreeTextAnnotation>Man with a funny moustache. </FreeTextAnnotation></TextAnnotation>
<CreationMetaInformation><Creation><Creator>Jones, Tommy.</Creator></Creation></CreationMetaInformation>
<MediaTime><MediaTimePoint>00:27:13;7</MediaTimePoint></MediaTime>
<MediaDuration><00:10:05;3></MediaDuration>
</VideoSegment>
MPEG-7 Example
1414
Managing use: DRM
• Technology to create DRM available– Authorization, access, transport
• Multiple and competing languages to describe rights of the owner, and permissions for the user
• Proprietary and commercial implementations– No R&E implementations to date
1515
Digital Rights Management Initiative• Launched at Managing Digital
Video Assets• Rights-L listserv created; over
300 subscribers in 21 countries; participants include LoC, MPEG, rights language developers, NSF.
• Interest in cooperative R&E effort
1616
Next Steps
• Creation of a “DRM-Core”– R&E Community development
•Libraries, universities, archives, consortia, standards bodies
– “Future-proofed”: interoperate with commercial and other systems
– Describing but not enforcing rights
1717
Role of DRM-Core in DRM Process
User
Authentication
Object
Authorization
DRM-CoreInteroperablePermissions
EditWrite,Copy, etc.
1818
DRM-Core Requirements• Distributed collaboration• Growing distance education marketplace• Needs to support Fair Use• Granular and differential access• Management of derivatives• Support for complex
licensing/contractual obligations• Integration with enterprise directories,
digital certificate servers, and other technologies
1919
R&E Scenario: Elearning
A digital video lecture: – Is limited to course registrants,– Available for three months after
course completion– Leased to non-registrants for$10
per hour: lower-resolution video file
2020
R&E Scenario: Thesis Creation• Student uses copyrighted video to
illustrate thesis• Fair use permission allows
selection of 20 second segments • Student creates and names
component video selections• Thesis is shared worldwide via the
Networked Digital Library of Theses & Dissertations
2121
DRM-Core: Next Steps
• See ViDe website for participation in existing efforts: Video Access WG, MPEG-4 and Rights-L
– www.vide.net• Workshop to engage experts,
stakeholders• Creation of a Working Group• YOUR THOUGHTS?