lab seminar video presence system with one vs multi supported
DESCRIPTION
Lab Seminar Video Presence System with One VS Multi Supported. Jitae Bae 20, February, 2010. Contents. Introduction & Background Related Work Motivation Proposed Approach Conclusion Schedule. Introduction & Background. Video Presence(VP) System Concept of presence - PowerPoint PPT PresentationTRANSCRIPT
DEPT. OF INFO. & COMM., GISTNetworked Media Lab.
Networked Media LaboratoryDept. of Information & Communications
Gwang-Ju Institute of Science & Technology (GIST)
http://netmedia.gist.ac.kr
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Lab SeminarVideo Presence System with One VS Multi
Supported
Jitae Bae20, February, 2010
DEPT. OF INFO. & COMM., GISTNetworked Media Lab.
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Contents
Introduction & Background
Related Work
Motivation
Proposed Approach
Conclusion
Schedule
DEPT. OF INFO. & COMM., GISTNetworked Media Lab.
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Introduction & Background
Video Presence(VP) System
Concept of presence Psychological sense of "being there" in environment based on technologically
founded immersive base Three types of presence
Personal presence The extent to which a person feels part of the environment
Social presence The extent to which others (human and non- human ) exist in the environment
Environmental presence The extent to which the environment acknowledges and interacts with the participants
DEPT. OF INFO. & COMM., GISTNetworked Media Lab.
Introduction & Background(cont)
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Prototype VP system Video Presence
Provide sense of presence by sharing multiple high-quality media Objective
Develop a system and software for video presence Prototype VP system
Smeet space
Smart Meeting Room
Linux
VLC
HD Camera
HD Camera
HD Camera
Network
Sender
Receiver
Tiled Display
Linux
VLC
VLC SVC
SVC
SVC
IEEE 1394 network
Network
DEPT. OF INFO. & COMM., GISTNetworked Media Lab.
Related Work
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Cisco Telepresence
In-person experiences between individuals, businesses, and events.
People everywhere can work, live, play, and learn together, in person
over the network.
Others
HP “hallo”, Polycom “RPX”, Tandberg “Experia”
DEPT. OF INFO. & COMM., GISTNetworked Media Lab.
Motivation
Many users want to present reality
Immersive Collaboration Meeting
Supporting reality meeting environment
Using concept of presence
World issue and market
Many companys concentrate on this field
Market is a wide scope.
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DEPT. OF INFO. & COMM., GISTNetworked Media Lab.
Proposed Approch
Understand library in VLC Using by library : libraw1394, libiec 61883, mpeg2 dec, dvgrap libraw 1394 – Ieee 1394 network acquisition in Linux Libiec 61883 – Channel selection about multiple input stream Mpeg2 dec – mpeg2 transmission in vlc Dvgrap – HDV Image capture and play in vlc
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Lib1394 lib.Capture
ieee1394 network
Dvgrab Capture Image
In VLCHD Video Image
Libiec 61883Report Image And Channel
selection
IEEE 1394 network
Channel 63
Channel 63
Channel 63
Channel 63
DEPT. OF INFO. & COMM., GISTNetworked Media Lab.
Conclusion
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Success chapter 1 : VP system Two Jvc camera transmission in Tiled display Similar multi view system(parallel) Using by VLC and SVC software
Problem Frame rate very low (CPU limit) A little delay existence but there is no large difference
Future work Overcome low frame rate
A cause analysis about frame rate Examine Two machine or more…
Eliminate delays
Study vlc system and mpeg2 transmission system
Source coding analysis of VLC
Find synchronization method
DEPT. OF INFO. & COMM., GISTNetworked Media Lab.
Schedule
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1 2 3 4 5 6 7
MPEG2 Transmission
System seminar
MPEG2 Transmission
System analysis
Low frame rateanalysis
Image differenceanalysis
VP system(Three camera)
VLC systemAnd source coding
analysis
VP systemaccomplishment
(1/31)
(2/28)
(2/28)
(2/11)
(7/31)
(4/30)
DEPT. OF INFO. & COMM., GISTNetworked Media Lab.
End of my lab seminar.
Thank you
Any question or comment
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