| 1D |
One-dimensional |
| 2D |
Two-dimensional |
| 3D |
Three-dimensional |
| 3DG |
3D Graphics |
| 3DV |
3D Video |
| 3G |
Third Generation (mobile) |
| 3GPP |
Third Generation Partnership Program |
| 8VSB |
8 Vestigial Side Band |
| AAC |
Advanced Audio Coding |
| AAL |
ATM Adaptation Layer |
| ACATS |
Advisory Committee on Advanced Television Services |
| ACL |
Agent Communication Language |
| ACM |
Association of Computing Machinery |
| ACTS |
Advanced Communication Technologies and Services |
| A/D |
Analogue-to-Digital |
| ADAPT |
Analogue Digital Analogue Parallel Transfer |
| AES |
Audio Engineering Society |
| AFX |
Animation Framework eXtension |
| AHG |
Ad Hoc Group |
| AHRA |
Audio Home Recording Act |
| ADSL |
Asymmetric Digital Subscriber Line |
| aka |
also known as |
| AMS |
Agent Management System |
| AOE |
Applications and Operational Environments |
| AP |
Agent Platform |
| API |
Application Programming Interface |
| ARAF |
Augmented Reality Application Format |
| ARPA |
Advanced Research Projects Agency |
| ASCII |
American Standard Code for Information Interchange |
| ASP |
Advanced Simple Profile |
| ATL |
Accredited Testing Laboratories |
| ATM |
Asynchronous Transfer Mode |
| ATSC |
Advanced Television Systems Committee |
| ATV |
Advanced Television |
| AU |
Access Unit |
| AV |
Audio-Visual |
| AVC |
Advanced Video Coding |
| BAP |
Body Animation Parametre |
| BBS |
Bulletin Board Systems |
| BC |
Backward Compatible |
| BDP |
Body Definition Parametre |
| BE |
Bandwidth Extension |
| BIFS |
Binary Format for MPEG-4 Scenes |
| BiM |
Binary format for MPEG-7 data |
| BoD |
Board of Directors |
| BSD |
Berkeley Software Distribution |
| CA |
Conditional Access |
| CATV |
Community Antenna Television |
| CC |
Compact Cassette |
| CCIF |
Comité Consultatif International Téléfonique |
| CCIT |
Comité Consultatif International Télégraphique |
| CCITT |
Comité Consultatif International Téléphonique et Télégraphique |
| CCIR |
Comité Consultatif International pour les Radiocommunications |
| CCO |
Convergence Core Ontology |
| CD |
Committee Draft |
| CD |
Compact Disc |
| CD-i |
Compact Disc Interactive |
| CD-ROM |
CD-Read Only Memory |
| CDMA |
Code Division Multiple Access |
| CDN |
Content Distribution Network |
| CDVA |
Compact Description for Video Analysis |
| CDVS |
Compact Description for Visual Search |
| CE |
Consumer Electronics |
| CE |
Core Experiment |
| CEC |
Commission of the European Communities |
| CEL |
Contract Expression Language |
| CELP |
Code Excited Linear Predictive |
| CEN |
Comité Européen de Normalisation |
| CENC |
Common Encryption |
| CEPT |
Conférence Européenne des Postes et Télécommunications |
| CfE |
Call for Evidence |
| CfP |
Call for Proposals |
| CG |
Computer Graphics |
| CGA |
Colour Graphic Adaptor |
| CI |
Common Interface |
| CIF |
Common Intermediate Format |
| CISAC |
Confédération Internationale des Sociétés des Auteurs et des Compositeurs |
| CMAF |
Common Media Application Format |
| CMTT |
Commission Mixte pour les Transmission Télévisuelles et Sonores |
| CLI |
Command Line Interface |
| CM |
Commercial Module |
| COFDM |
Coded Orthogonal Frequency Division Multiplexing |
| COM |
Component Object Model |
| COMIS |
Coding of Moving Images for Storage |
| CORBA |
Common Object Request Broker Architecture |
| COST |
Collaboration Scientifique et Technique |
| CP |
Content Provider |
| CPS |
Constrained Parameter Set |
| CPU |
Central Processing Unit |
| CPS |
Content Provider System |
| CP/M |
Control Program for Microcomputers |
| CR |
Conditional Replenishment |
| CRT |
Cathode Ray Tube |
| CS |
Coding Scheme |
| CS |
Computer Science |
| CSS |
Cascading Style Sheet Language |
| CSS |
Content Scrambling System |
| CW |
Control Word |
| D |
Descriptor |
| DAB |
Digital Audio Broadcasting |
| DAI |
DMIF Application Interface |
| DAPA |
Digital Audio and Picture Architecture |
| DARPA |
Defense Advanced Research Projects Agency |
| DASH |
Dynamic Adaptive Streaming over HTTP |
| DAT |
Digital Audio Tape |
| DAVIC |
Digital Audio-Visual Council |
| DB |
Decoding Buffers |
| DC |
Digital Communication |
| DCC |
Digital Compact Cassette |
| DCOM |
Distributed Component Object Model |
| DCT |
Discrete Cosine Transform |
| DDL |
Description Definition Language |
| DF |
Directory Facilitator |
| DI |
Digital Item |
| DIA |
Digital Item Adaptation |
| DID |
Digital Item Declaration |
| DIDL |
Digital Item Declaration Language |
| DII |
Digital Item Identification |
| DIM |
Digital Item Method |
| DIP |
Digital Item Processing |
| DIPS |
Digital Image Processing System |
| DK |
Disk Key |
| DM |
Digital Media |
| DMM |
Digital Media Manifesto |
| DMP |
Digital Media Project |
| DMT |
Digital Media Technologies |
| DMCA |
Digital Millennium Copyright Act |
| DMIF |
Delivery Multimedia Integration Framework |
| DMP |
Digital Media Project |
| DMR |
Digital Media Revolution |
| DNS |
Domain Name System |
| DoD |
Department of Defense |
| DPCM |
Differential Pulse Code Modulation |
| DPI |
Dot Per Inch |
| DRC |
Dynamic Range Control |
| DRM |
Digital Rights Management |
| DS |
Description Scheme |
| DSM |
Digital Storage Media |
| DSM-CC |
Digital Storage Media Command and Control |
| DSP |
Digital Signal Processor |
| DT |
Description Tools |
| DT |
Digital Technologies |
| DTD |
Document Type Definition |
| DTS |
Decoding Time Stamp |
| DVB |
Digital Video Broadcasting |
| DVD |
Digital Versatile Disc |
| DVS |
Digital Video Recorder |
| D/A |
Digital to Analogue |
| E2E |
End-to-End |
| EBU |
European Broadcasting Union |
| EC |
European Commission |
| EC |
Executive Committee |
| ECM |
Entitlement Control Messages |
| ECMA |
European Computer Manufacturers Association |
| EG |
Expert Group |
| EGA |
Enhanced Graphic Adaptor |
| EMM |
Entitlement Management Messages |
| EN |
European Norm |
| EPG |
Electronic Program Guide |
| ER |
Event Reporting |
| ES |
Elementary Stream |
| ESI |
Elementary Stream Interface |
| ESPRIT |
European Strategic Program of Research and development in Information Technology |
| ETSI |
European Telecommunication Standards Institute |
| EURASIP |
European Signal Processing Association |
| FAB |
Face and Body Animation |
| FAP |
Face Animation Parametre |
| FCC |
Federal Communication Commission |
| FCD |
Final Committee Draft |
| FDIS |
Final Draft International Standard |
| FDP |
Facial Definition Parametre |
| FDM |
Frequency Division Multiplexing |
| FF |
File Format |
| FGS |
Fine Granularity Scalability |
| FIFO |
First In First Out |
| FIPA |
Foundation for Intelligent Physical Agents |
| FPA |
Frame Packing Arrangement |
| FM |
Frequency Modulation |
| FPS |
Fast Packet Switching |
| FR |
Functional Requirements |
| FTP |
File Transfer Protocol |
| FTTC |
Fiber to the Curb |
| GA |
General Assembly |
| GIF |
Graphics Interchange Format |
| GNU |
Gnu’s Not Unix |
| GOB |
Group of Block |
| GOP |
Group of Pictures |
| GPL |
General Public License |
| GPRS |
General Packet Radio Services |
| GPU |
General Postal Union |
| GSM |
Global System for Mobile/Groupe Spécial Mobile |
| GUI |
Graphical User Interface |
| HDLC |
High-level Data Link Control |
| HD-MAC |
High Definition MAC |
| HDR |
High Dynamic Range |
| HDTV |
High Definition Television |
| HEVC |
High Efficiency Video Coding |
| HFC |
Hibrid Fiber Coax |
| HoD |
Head of Delegation |
| HTML |
HyperText Markup Language |
| HTTP |
HyperText Transport Protocol |
| HVXC |
Harmonic Vector eXcitation Coding |
| IAB |
Internet Activities Board |
| IAB |
Internet Architecture Board |
| IC |
Integrated Circuit |
| ICANN |
Internet Corporation for Assigned Names and Numbers |
| ICASSP |
International Conference on Acoustics, Speech and Signal Processing |
| ICCB |
Internet Configuration Control Board |
| ICIP |
International Conference on Image Processing |
| ICN |
Information Centric Networking |
| ICT |
Information and Communication Technologies |
| IDL |
Interface Description Language |
| IEC |
International Electrotechnical Commission |
| IESG |
Internet Engineering Steering Group |
| IETF |
Internet Engineering Task Force |
| IMS-1 |
Interactive Multimedia Services at 1 Mbit/s |
| IMP |
Interface Message Processor |
| INA |
Institut National de l’Audiovisuel |
| IP |
Internet Protocol |
| IP |
Intellectual Property |
| IPI |
Intellectual Property Identification |
| IPMP |
Intellectual Property Management and Protection |
| IPMP-D |
IPMP-Descriptors |
| IPMP-ES |
IPMP-Elementary Streams |
| IPMP-H |
IPMP Hooks |
| IPMP-S |
IPMP-Systems |
| IPMP-X |
IPMP eXtensions |
| IPR |
Intellectual Property Rights |
| IS |
International Standard |
| ISAN |
International Standard Audiovisual Number |
| ISBN |
International Standard Book Numbering |
| ISDB |
Integrated Services Digital Broadcasting |
| ISDN |
Integrated Service Digital Network |
| ISG |
Implementation Studies Group |
| ISMA |
Internet Streaming Media Association |
| ISO |
International Organisation for Standardisation |
| ISP |
Internet Service Providers |
| ISRC |
International Standard Recording Code |
| ISSN |
International Standard Serial Number |
| ISWC |
International Standard Musical Work Code |
| IT |
Information Technology |
| ITA |
Industry Technical Agreement |
| ITSCJ |
Information Technology Standards Committee of Japan |
| ITTF |
Information Technology Task Force |
| ITU |
International Telecommunication Union |
| ITU-R |
International Telecommunication Union – Radiocommunication Sector |
| ITU-T |
International Telecommunication Union – Telecommunication Sector |
| IVC |
Internet Video Coding |
| IVICO |
Integrated Video Codec |
| I/O |
Input/Output |
| JADE |
Java Agent Development Environment |
| JAXB |
Java Architecture for XML Binding |
| JBIG |
Joint BIlevel Experts Group |
| JCP |
Java Community Process |
| JPEG |
Joint ISO-CCITT Photographic Coding Experts Group |
| JSPA |
Java Specification Agreement |
| JSR |
Java Specification Request |
| JTC 1 |
Joint ISO/IEC Technical Committee 1 |
| JVT |
Joint Video Team |
| LAN |
Local Area Network |
| LC |
Low Complexity |
| LCM |
Licensing Compliant Module |
| LD |
Laser Disc |
| LGPL |
Lesser General Public License |
| LOD |
Level Of Detail |
| LP |
Long Playing |
| LSB |
Least Significant Bit |
| LSI |
Large Scale Integration |
| M3W |
Multimedia Middleware |
| M4IF |
MPEG-4 Industry Forum |
| MAC |
Multiplexed Analogue Components |
| MC |
Management Committee |
| MC |
Motion Compensation |
| MCO |
Media Contract Ontology |
| MCU |
MultiConference Unit |
| MDS |
Multimedia Description Schemes |
| MHEG |
Multimedia and Hypermedia Experts Group |
| MHP |
Multimedia Home Platform |
| MIDI |
Musical Instrument Digital Interface |
| MIME |
Multipurpose Internet Mail Extensions |
| MIoT |
Media Internet of Things |
| MIPS |
Million Instructions Per Second |
| ML |
Main Level |
| MLAF |
Media Linking Application Format |
| HMI |
Human-Machine Interaction |
| MMS |
Multimedia Message Service |
| MMT |
MPEG Media Transport |
| MOD |
Media Object Decoder |
| MP |
Main Profile |
| MP3 |
MPEG-1 Audio Layer III |
| MP7A |
MPEG-7 Alliance |
| MPEG |
Moving Picture Experts Group |
| MPT |
Ministry of Post and Telecommunication |
| MSB |
Most Significant Bit |
| MS-DOS |
Microsoft Disk Operating System |
| MSI |
Medium Scale Integration |
| MTS |
Message Transport System |
| MTU |
Magnetic Tape Unit |
| MUSE |
Multiple Sub-Nyquist Encoding |
| MUW |
Multi User World |
| MW |
Medium Wave |
| MXF |
Material eXchange Format |
| MXM |
MPEG eXtensible Middleware |
| NAB |
National Association of Broadcasters |
| NASA |
National Aeronautics and Space Administration |
| NB |
National Body |
| NBC |
Non-Backward Compatible |
| NI |
Notification Information |
| NCP |
Network Control Protocol |
| NP |
New Project |
| NSF |
National Science Foundation |
| NT |
New Technology |
| NTSC |
National Television System Committee |
| ODA |
Open Document Architecture |
| OEM |
Original Equipment Manufacturer |
| OMAF |
Omnidirectional Media Application Format |
| OMG |
Object Management Group |
| OPIMA |
Open Platform Initiative for Multimedia Access |
| ORB |
Object Request Broker |
| OS |
Operating System |
| OSS |
Open Source Software |
| OSF |
Open Software Foundation |
| OSI |
Open Software Initiative |
| OSI |
Open System Interconnection |
| OSS |
Open Source Software |
| OTA |
Over The Air |
| OVM |
OPIMA Virtual Machine |
| P2P |
Peer-to-Peer |
| PA |
Public Authority |
| PAL |
Phase Alternating Lines |
| PAS |
Publicly Available Specifications |
| PC |
Personal Computers |
| PCB |
Printed Circuit Board |
| PCM |
Pulse Code Modulation |
| PCS |
Picture Coding Symposium |
| PD |
Portable Device |
| PDA |
Personal Digital Assistant |
| PES |
Packetised Elementary Streams |
| PIN |
Personal Identification Number |
| PI |
Publication Information |
| PK |
Player Key |
| PN |
Pseudo random Noise |
| PNG |
Portable Network Graphics |
| PPD |
Proposal Package Description |
| PS |
Program Stream |
| PTS |
Presentation Time Stamps |
| PTT |
Post, Telephone and Telegraph |
| QAM |
Quadrature Amplitude Modulation |
| QoS |
Quality of Service |
| QPSK |
Quadrature Phase Shift Keying |
| RA |
Registration Authority |
| RACE |
Research & development on Advanced Communication for Europe |
| RAM |
Random Access Memory |
| RAND |
Reasonable terms And Non Discriminatory conditions |
| RDD |
Rights Data Dictionary |
| REL |
Rights Expression Language |
| RFC |
Request for Comments |
| RGB |
Red Green and Blue |
| RI |
Resource Information |
| RM |
Reference Model |
| RMI |
Remote Method Invocation |
| ROI |
Return on Investments |
| RTI |
Real-Time Interface |
| RTP |
Real Time Protocol |
| SA |
Structured Audio |
| SAC |
Secure Authenticated Channel |
| SAOC |
Spatial Audio Object Coding |
| SAPI |
SOMMIT API |
| SB |
Steering Board |
| SBC |
Subband Coding |
| SC |
Subcommittee |
| SC |
Steering Committee |
| SCC |
Screen Content Coding |
| SCART |
Syndicat des Constructeurs d’Appareils Radio et Télévision |
| SCMS |
Serial Copy Management System |
| SCR |
Systems Clock Reference |
| SDM |
System Decoder Model |
| SDMI |
Secure Digital Music Initiative |
| SDO |
Standards Developing Organisations |
| SDTV |
Standard Definition Television |
| SEI |
Supplemental Enhancement Information |
| SECAM |
Séquentiel à Mémoire |
| SG |
Study Group |
| SGML |
Standard Generalised Markup Language |
| SI |
Service Information |
| SI |
Subscription Information |
| SIF |
Source Input Format |
| SIGGRAPH |
Special Interest Group on Computer Graphics |
| SIM |
Subscriber Identification Module |
| SK |
Service Key |
| SLPI |
Software Library Portability Interface |
| SM |
Simulation Model |
| SMIL |
Synchronized Multimedia Integration Language |
| SMS |
Short Message Service |
| SNHC |
Synthetic and Natural Hybrid Coding |
| SNR |
Signal-to-Noise Ratio |
| SOMMIT |
Software Open Multi-Media Interactive Terminal |
| SMPTE |
Society of Motion Pictures and Television Engineers |
| SP |
Service Provider |
| SP |
Signal Processing |
| SP |
Simple Profile |
| SPAC |
Strategic Planning Advisory Committee |
| SPS |
Service Provider System |
| SRM |
Session and Resource Manager |
| SSR |
Scaleable Sampling Rate |
| SSS |
Shared-Source Software |
| STB |
Set Top Box |
| STC |
Systems Time Clock |
| SUS |
Service User System |
| STD |
Systems Target Decoder |
| SVC |
Scalable Video Coding |
| SVG |
Simple Vector Graphics |
| SW |
Short Wave |
| MW |
Medium Wave |
| TC |
Technical Committee |
| TCK |
Technology Compatibility Kit |
| TCP |
Transmission-Control Protocol |
| TDM |
Time Division Multiplexing |
| TDMA |
Time Division Multiple Access |
| TINA |
Telecommunication Information Networking Architecture |
| TK |
Title Key |
| TLD |
Top Level Domain |
| TM |
Technical Module |
| TM |
Test Model |
| TPM |
Technological Protection Measure |
| TR |
Technical Report |
| TS |
Time Slot |
| TS |
Transport Stream |
| TT |
Timed Text |
| TTS |
Text-To-Speech |
| TTSI |
TTS Interface |
| TVA |
TV Anytime Forum |
| UD |
User Description |
| UDP |
User Datagram Protocol |
| UHF |
Ultra High Frequency |
| UK |
User Key |
| UPU |
Universal Postal Union |
| URI |
Uniform Resource Identifiers |
| URL |
Universal Resource Location |
| USAC |
Unified Speech and Audio Coding |
| VADIS |
Video Audio Digital Interactive System |
| VBV |
Video Buffering Verifier |
| VCD |
Video CD |
| VCEG |
Video Coding Experts Group |
| VCR |
Video Cassette Recorder |
| VGA |
Video Graphic Adaptor |
| VHF |
Very High Frequency |
| VHS |
Vertical Helix Scan |
| VLC |
Variable Length Coding |
| VLSI |
Very Large Scale Integration |
| VM |
Verification Model |
| VM |
Virtual Machine |
| VO |
Video Object |
| VOP |
Video Object Plane |
| VOD |
Video on Demand |
| VRML |
Virtual Reality Modeling Language |
| VSB |
Vestigial Side Band |
| W3C |
World Wide Web Consortium |
| W-CDMA |
Wideband-CDMA |
| WD |
Working Draft |
| WG |
Working Group |
| WIPO |
World Intellectual Property Organisation |
| WWW |
World Wide Web |
| WYSIWYG |
What You See Is What You Get |
| VT |
Verification Tests |
| XM |
eXperimentation Model |
| XML |
eXtensible Markup Language |
| XMT |
eXtensible MPEG-4 Textual format |
| XSL |
eXtensible Style Language |
| YM |
sYstem Model |
| YMCK |
Yellow, Magenta, Cyan and blacK |