Inhaltsverzeichnis
Networked Multimedia WS 98/99
PPT-Folie
Contents
Literatur
Introduction to Multimedia
Media
Media
Size of transmission versus time of transmission
Why are Media Important?
Media Present Information
Media Present Information
Time-Dependence of Media
Properties of a Multimedia System
A new definition of Multimedia:
PPT-Folie
The Information-Based Economy?
The Information-Based Economy?
The Information-Based Economy?
Info-Highway: Initiatives
USA: National Information Infrastructure (NII)
Europe: Bangemann Report
Network Types and Services
2. Integration
Integration Results
2.1 Integration Advantages
Media Advantage: Expressiveness
A Network Advantage: Reachability
A Computer Advantage: Individuality
Another Computer Advantage: Processing
2.2 Steps toward Integration
Stage I: Traditional Approach
Stage II: Computer Controls External Devices
Stage III: Digital Communications
Stage IV: Integrated Digital Communications
Stage V: All Digital But Analog Interfaces
Stage VI: All Digital System
2.3 Technical Key Problems
Real-Time Dependencies
Communication Systems – Requirements
Communication Systems – Today
Operating Systems
Processing Requirements
Synchronization
Synchronization Mechanisms
Stream Handling
New Data Types
3 Networks
Switching concepts
Circuit switching
Packet switching
Cell switching:
ISO / OSI Reference Model
ISO / OSI Reference Model
ISO / OSI Reference Model
Switching concepts
Switching concepts
Networks
3.1 Ethernet
Ethernet
Ethernet Structure: Topology
Ethernet: CSMA/CD Protocol
Ethernet: Usability for Multimedia Data
Fast Ethernet Compared to Ethernet:
Gigabit Ethernet
3.2 Token Ring
Token Ring Structure: Topology
Token Ring Usability for Multimedia Data
3.3 FDDI (Fiber Distributed Data Interface)
FDDI: Topology
FDDI: Components
FDDI: Components
FDDI: Usability for Multimedia Data
FDDI: Usability for Multimedia Data
FDDI II: Traffic Types
FDDI II: Conceptual Structure
FDDI II: Concept
3.4 DQDB (Distributed Queue Dual Bus)
DQDB: Topology
DQDB: Traffic Types
DQDB: Usability for Multimedia Data
DQDB: Usability for Multimedia Data
3.5 ISDN (Integrated Services Digital Network)
ISDN
ISDN: Usability for Multimedia Data
3.6 B-ISDN (Broadband ISDN)
B-ISDN: ATM
ATM: Reference Model
ATM Layer Overview
ATM: VPIs and VCIs
ATM: VPIs and VCIs
ATM: Virtual Connections
ATM: Classes of Services
Service Categories
ATM: Usability for Multimedia Data
ATM: Usability for Multimedia Data
Reservation Protocolls
Reservation Protocols
Examples of Reservation Protocols
Classification of Reservation Protocols
ST2+ - Internet Stream Protocol Version 2+
Modules for ST2
Stream
SCMP
Stream Set up (1)
Steam Set Up (2)
Change of Receiving Target Group
Data Transfer
ST2+ FlowSpec
Groups of Streams
Failure Detection & Recovery
Stream Preemption
RSVP - Resource Reservation Protocol
RSVP - Komponents
RSVP - data path modlus (1)
RSVP - data path moduls (2)
RSVP - control moduls
RSVP - attributes
RSVP - data flows
RSVP - reservation model
RSVP - Reservation styles
RSVP - merging of reservations
RTP - Real-Time Transport Protocol
RTP - Scenario
RTP - Definitions
RTP - Header
TCP - RTP control protocol
4 Compression
General Requirements
Mode Dependent Requirements
Categories and Techniques
Entropy Coding
Entropy Coding
Run-length Coding
Huffman Coding
Huffman Coding
Huffman Coding
Huffman Coding
Huffman Coding
Adaptive Algorithms
Adaptive Huffman Coding
Adaptive Huffman Coding
Adaptive Huffman Coding
Adaptive Huffman Coding
Adaptive Huffman Coding
Adaptive Huffman Coding
Arithmetic Coding
Arithmetic Coding
Source Coding
Discrete Cosine Transformation (DCT)
Discrete Cosine Transformation (DCT)
Hybrid Coding for Images, Video and Audio
Image preparation
JPEG (Joint Photographics Expert Group)
JPEG Example
JPEG
MPEG (Moving Pictures Expert Group)
MPEG
Further Video Compression Standards
MPEG-2
Other Compression Methods 1
Other Compression Methods 2
5 System Architecture and Components
Workstation Architecture: Today
Workstation Architecture in the Future
Workstation Architecture: Switch Based
Workstation Architecture: Desk Area Network
Workstation Architecture: Desk Area Network
Continuous Media handling by Software
System Software Tasks
Examples: System Software Tasks
Problems of Continuous Media processing
Problems of Continuous Media processing
Problems of Continuous Media processing
Real-Time Systems
Summary
Summary
Summary
Summary
Summary |