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Multimedia Communications: Video Compression

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Temporal Activity in Head-and-Shoulders Video. mmc6.03. Model for Block-Based Motion Compensation ... Error Signals in Temporal Prediction and. Motion ... – PowerPoint PPT presentation

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Title: Multimedia Communications: Video Compression


1
Multimedia CommunicationsVideo Compression
  • mmc6.01

2
Video Formats and Bit Rates
mmc6.02
3
Temporal Activity in Head-and-Shoulders Video
mmc6.03
4
Model for Block-Based Motion Compensation
mmc6.04
5
Error Signals in Temporal Prediction and Motion
Compensation
mmc6.05
6
Matching Algorithm for Motion Estimation
mmc6.06
7
Video Coder based on MC-DCT
mmc6.07
8
Videoconferencing Standards in ITU
mmc6.08
9
Group of Pictures in MPEG
mmc6.09
10
Object-based Video Coding
mmc6.10
11
Face Synthesis Using a Wire-Mesh Model
Two methods of Face Synthesis - Visual (Driven
by natural face video) - Text-Based (Modulation
of wire-mesh face model)
mmc6.11
12
Goals of MPEG4
  • Reusable Reconfigurable Content
  • Synthetic-Natural Hybrid Coding
  • Content-Based QoS
  • High Level of User Interaction
  • Networking Tools, IP-Protocols

mmc6.12
13
HDTV Compression
1 million pixels per frame 60 frames per
second 60 MHz sampling rate 60 Mbps at 1 bit per
pixel 25 Mbps at 0.25 bit per pixel 17 Mbps
Source Coding 8 Mbps Channel Coding
mmc6.13
14
Aspect Ratio in HDTV
mmc6.14
15
Audiovisual Experience in HDTV
mmc6.15
16
Frequency-Sensitivity of the Human Eye
mmc6.16
17
Advanced Television Research
  • De-Interlacing
  • More efficient compression
    Techniques
    from H.263, MPEG4, .
  • Compressed Domain Processing for
    Multiplexing Editing Ad-Insertion
  • Efficient Processing of Graphics
    mmc6.17

18
Video Coding Demo
mmc6.18
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