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?