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Internet Cyber Class Solution Using VS2000

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1. Introduction

; Cyber Lecture Using VS2000

Education using the multimedia contents

Provides the motivation and maximizes the education effect to the students thru the various types of lecture.

Enables to make various types of class program using a Blue-screen.

Enables to use the virtual studio set in a various field as well as a cyber lecture.

Development of 3D contents and technology thru the industry-academic cooperation.

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2. Proposal Background

Needs an activation and differentiation of internet class living in IT world. Needs an education method thru the internet differentiating from teaching with a text

material. Needs 3D studying materials not as a replacement of the black board.

Improvement of studying skill and change of Student’s need Improves the students’ computer skill in terms of the spread of PC. Makes the students satisfied, who get used with video and audio contents.

Maximizes the education purpose thru the multimedia contents. Makes the students interested in studying in 3D cyber space. Modernization of education using the video and audio materials.

Easy to make a broadcasting environment. Using a small space, make a broadcasting environment without having a actual stage.

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2.1 Current Way of Cyber Class

Text and Audio Lecture

Text and Audio-centered education make students lose the concentration by listening and reading at the same time.

Inconvenient clicking or dragging the mouse for each page and uploading the word file to the web site.

Reading by dragging the mouse

Reading the text with listening

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Method Using the Movie Clip

The lecture goes with the screen showing a fixed camera.Usually, the lecturer has to look up and down to see the lecture paper or PC monitor.

The students could not find the difference comparing with the audio lecture.

Hard to recognize the contents showing in 320x240 resolution.

• Fixed Camera Screen

• Small Size of Movie Clip

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2.2 Cyber Lecture Using VS2000

2.2.1. Introduction of VS2000

VS2000 interposes the cyber graphic image and the actual figure, and then provides the effect being in real space.

Without making a actual stage set, it provides the various types of cyber space using a blue or green background.

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① Blue/Green Screen Image

② Image Inputthru camera

③ Interpose the image with the background graphic

④ Image Output

Interposing Process Using VS2000

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2.2.2. Types of Virtual Studio

2D Virtual Studio

The actual figure is interposed in front of the background image in 2D virtual studio.

It is applied in news, weather forecast and music program. In case of 2D, the movement of camera is limited.

Example of 2D Virtual Studio [ Weather Forecast ]

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3D virtual studio provides being in a actual space to the viewers.

All the objects and background has a thickness, height and quality, the movement of the actual figure and the objects are flexible.

3D Virtual Studio

Example of 3D Virtual Studio

[ ‘History Special’ – Korean History (KBS) ] [ ‘Classic Odyssey’ – Korean Classic Music(KBS)

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2.3 Advantages Using the Virtual Studio System From Darim Vision.

The Flexible Movement of Camera

The movement of the camera is flexible, not like a present way that the lecturer has to stay with the front of the camera.

Even though the actual camera is fixed, the part or whole image of the lecturer can be zoom-in and out in a 3D virtual space.

Enables to change the camera angle freely using a virtual camera

In case that the lecturer is shown by the real camera, it provides the various type of Scene showing in different camera angles.

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[ Virtual Camera Zoom in ]

[ The Movement of Real Camera]

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Interposing a Movie Clip

In a part or full size of screen, the movie clip can be interposed.

The movie clip can be from any source like VTR or DVD.

In case of science subjects, the movie clip showing a experiment process or other material from other source can be inserted to show.

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[ Example of Interposing a Movie Clip ]

• Interposing a Movie Clip •1) Place an Monitor at the height of shoulder.

•Interposing a Movie Clip • 2) Place an Virtual Monitor in a class.

The place of objects and monitor are placed when the virtual studio is designed.

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Slide Effect/ Changing Images

Applying a animation effect to the objects, the contents can Be designed as a slide. By clicking the buttons, the images can be shown as the lecturer explains.

The contents or picture done by PowerPoint can be inserted (Needs to be transferred to the image)

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[Example of Slide Board ]

• Slide 1); Explanation of Structure

• Slide 2); After zoom in - Explanation of the Application Field.

All the objects in a virtual studio can be changed any time, so the stage can be designed in a short time.

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Applicable in various fields.

Even though the type of program is changed, the accessories or background needed for the real stage are not necessary by performing in a blue/green stage.

Saves the expense for the labor and stage design using a graphic instead of using a real stage.

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[Example of Application Field-1 ]

• Cyber Class • News on Campus • Interview

• Dancing or Gym Lecture

• Election Program • Music Program

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[Example of Application Field-2 ]

• Cultural Subject • Campus Event/ Promotion

• Documentary Program

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2.4 Effect of Applying the System.

Application in a New Method of Education

.Present Cyber Lecture System

Text-centered Program

; Does not give the interest to the students who get used to the high technology and video.

Virtual Studio System

Graphic-centered Virtual Studio Program

;Using a 3D cyber space, it makes students excited and increases the education effect.

; Brings an improvement of education.

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Application of High Tech Multimedia Systems

Interposing the video clip in a part of the cyber space, it supports

for the lecture with the multimedia contents, which was enabled in a

TV program.

Instead of fixed style of lecture method, it provides the variety of

education method doing in a cyber space.

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① Blue Screen

③ Interposes in a part of the background in a system.

④ Final Video Output

Interposing Steps of Movie Clip

② Video Source like VTR, Camcorder and DVD.

3D background +

Actor+

Video Source

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Designing of the broadcasting environment, it saves the space and expense

Building a real Stage

Space is limited.; Mostly, the different stages have to be designed for each shot and move all the accessories when the different shot is performed. Needs a large budget and labor to build a stage.

Using a VS2000 system

No limitation on space; Creates the limitless space with a blue screen background. Easy to change to background; Enables to change the background by clicking the mouse. No need to build a real stage; By 100% graphic work, the stage is created.

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Creating the Own Contents

The graphic designers create the contents with a 3Dmax Studio and have a chance to work in a broadcasting field.

Through the experience making the contents and cyber studio, they can have a chance to work in a various field in a society.

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Activation of Broadcasting Station on Campus

Through the experience of making the contents, it provides the activation of broadcasting station on campus

: Can be applied in a cyber lecture, election for the Dean and president of student, music program, festival and etc.

; Activates a broadcasting station on campus and improves the quality of broadcasting station on campus.

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Industry-academic cooperation

; As the university provides the work experience to the students, they easily adapt themselves to the society.

; Through the project designing 3D graphic materials, the students who major in graphics have more chance to work in a real field.

; With the experience doing a general work of the broadcasting, they enable to have more chance to work in a broadcasting field.

;Darim Vision can create the contents or develops the technology working with the students and has a chance to find the qualified staffs for the future. Also, Darim Vision and students can work together to find the weakness and solve the problem of the system.

Develops the relationship between the universities and company thru the industry-academic cooperation.

Campus

Company

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The Simplicity of Maintenance For The System.

It is easy to fix the problems of the system which has been

developed by Darim Vision itself.

; Editing and transmission system including VS2000 are all

developed by Darim Vision and easy to maintain the system.

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3. Proposal 3.1 System Structure

3.2 System List

Program Production VS2000 : Virtual Studio Set

Editing/ Transmission FD1000 : Real-time Capture /Editing System FS1000 : Automatic Transmission System

File Transfer/ Internet Broadcasting Use the current systems.

Differentiates the lecture using the virtual studio set.

Easy to edit using the real-time capture, edit system.

File Transfer using the current system – Internet Broadcasting

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3.3 System

Virtual Studio Set:

It is the PC based system that interposes the graphic background and the real person whostands in front of the blue screen and shows in a one screen. Generally, it is applied in a news or weather forecast.

Editing, Transmission System.

Captures and saves the contents which are done by VS2000. Then, delete the part which is not necessary to make a completed one.The programs which are produced are organized by the broadcasting time in a schedule.After decreasing the file size, broadcasts them thru the internet.

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3.4 System Configuration

FD/ FS1000Real-time Capture/Editing System /Transmission Server

VS 2000(3 차원 합성 시스템 ) Encoding Server

Web Server

Media Server

L4 Switcher

Virtual Studio

User

User

UserWeb 문서

Using the Current System

VideoS-Video, composite, YUV

AudioStereo

VideoS-Video, composite, YUV

AudioStereo

Video

Audio

Audio

Stereo

AVI(DV.MJPEG)

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3.4.1. Details of System Configuration

1) Take a shot of the lecturer using a blue screenThe lecturer enables to check his or her appearance and acts being in a cyber space by looking at the interposed screen.

2) The contents in VS2000 are captured and saved to FD system. Then, the parts which is not necessary are deleted to be the program for the another usage. Also, the audio effect can be added.

3) The contents transferred to FS systems are organized as a broadcasting schedule and broadcasted in a scheduled time. Also, the background music or logo can be added and broadcasted for 48 hours.

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1) Introduction

It is the PC based system that interposes the graphic background and the real person who stands in front of the blue screen and shows in a one screen. Generally, it is applied in a news or weather forecast.

The functions of VS2000 are good enough to compare with the other systems which costs more, and it has an affordable price.

Anyone can operate the system due to the

unnecessary of the special camera or sensor.

4. Details about VS2000

4.1 3D Real-time Virtual Studio : VS2000

System Image

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Only one operator is needed to maintain the system and it is very easy to set the system.

No other equipment is necessary in terms of internal software setting the key.

Based on 3D graphic generating engine, the user enables to check the real-time screen without the rendering time.

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2) Advantages of using VS2000

Powerful 3D Rendering Engine It exports the image which is designed with 3DStudio Max plug-in

and renders 3D graphic data perfectly in a 3D rendering engine

(Based on Geforce3 chip) of the system.

 

Trackless System Even though the real camera is fixed, the picture angle of objects

can be controlled by the virtual cameras in a cyber space. So,

other tracking systems are unnecessary, which saved the money.

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Controlling Color Key Using the hardware and software controlling the color-key,

keying can be done automatically or manually.

Interposing The Live Image The certain object in a cyber space can be interposed with the live

image or saved image data, also animation, the change of shape and highlighting can be applied in terms of interposing with the textured live image.

Interposing Live Image Screen

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3) Advantage of VS2000

No need extra equipment

Trackless • Simple installation, affordable price- no need high priced tracking equipment

• Easy installation of all types of camera

• Unlimited studio effect suing a small sized studio

Convenient editing of data: using 3D Studio Max

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easy control the screen using button or script

One operator is enough to operate the system

Powerful graphic accelerator

Powerful real time rendering engine

Use of Excellent PC 3D Game Chipset

example for the VS studio

Connecting the systems

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Using Joystick to operate a virtual camera and an object - Zoom/Pan/straight move of a virtual camera

Chroma Keyer of the new digital technology

complete the high quality keying within 5 minutes

Support multiple cameras, inserting a live picture

3Possible to install multiple Vritual cameras thru 3D Studio Max:

PTZ control and FOV change is possible thru software .

change of the background thru using a joystick

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4) Diagram of VS2000 function

• Live video, Chroma Key, 3D Max data, Animation

Live videoChroma Keying

Rendering engine

3D Max DataAVI,MPEG

Animations

(up to four cameras )

Final output

3D+actor+AVI

+Live vidoe

Key Out

Recorded Video of the instructor (actor) is mixed and rendered internally after getting chroma keyed

internally and mixed with the produced background graphic thru 3D Max data.

At this moment other video can be inserted on desired position with AVI, MPEG format and it makes

output the rendered video real time thru rendering engine internally.

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5) Steps of Output : Step 1)Live Camera Takes the video of the Actor Step 2)Chromakeying Step 3) VideoTexturing on the Object of 3D Data Step 4) select Virtual Camera and track position(Joystick or Predefined Track in 3D Data. Step 5) RealTime Rendering & Output

Video Texturing on the object define in 3D Data..( Don’t have to be Rectangle Plane, warp,morph is possible)

Chroma Key( inside VS2000 )

Studio

3D Data (Max)

3D renderingVirtual camera output

Virtual Camera

Multiple Virtual cameras can be defined in 3D Studio Max : Manually or predefined Tracking Contolled by Software to move rotate change FOV etc

Steop 1)

Steop 2)

Step 4)Step 5)

Real Camera (No tracking)

AVI playback( optional live video)

Step 3)

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2002 NAB Pick Hit

6) VS2000 Award winning

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TJB Broadcasting using VS2000

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Model VS2020A VS2020 Pro VS2020

Studio

Video input type S-Video YUV or RGB SDI

Maximum live video texture (num) 2 2 2

Maximum cameras (num) 4 4 4

Best quality video output type

YUV or RGB

YUV or RGB

(SDI option)

YUV or RGB

(SDI option, Genlock)

Audio in/out Stereo 2 Stereo 2 Stereo 2

7) VS2000 series

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기본 시스템

6U Rack-mount

최대 2 개의 표준 아날로그 비디오 입력

YUV 또는 RGB/S-Video/Composite 입출력

Audio input/output

Dual monitor Interface

(PC Monitor, Analogue Monitor)

추가 선택사항

SDI, DVI 모듈

다수의 비디오 입력 채널 모드 : 최대 4 개의 카메라

외부 비디오 장비 제어 모듈

Delay 가능한 오디오 믹서 모듈

8) VS2000 시스템 사양 - 1

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장 비 주 요 사 양제 조 사 및

모델명

모니터링 시스템

CPU : Intel Pentium III 550MHz Dual CPU Cache : 512KB L2 Memory : 256MB SDRAM HDD : 18GB Wide-Ultra SCSI CD ROM : 32X MAX NIC : 10/100 Ethernet Expansion Slots : 6 Graphics : Matrox Millennium G200(8MB) OS : MS Windows NT Workstation 4.0 Monitor : 21” Compaq V1000 Color

Compaq AP 400

9) VS2000 system spec – 2 Pc based hardware system/ software provided

CPU AMD1.5MP 2 or higher

Mainboard Tyan S2460 1 or compatible,higher

RAM 512M 1

HDD IBM 76G 1 or similar

FDD 1.44Mb 1

CD-ROM LG 52X 1

VideoCard GEOFORCE 3 1

VideoCard PCI 1 video memory 4M

SoundCard SB LIVE 5.1 1

LAN Card Intel-pro 1 10/100 Mbps

CPU Cooler CAK-II 2

OS WIN2K 1 english or korean

Power 430W 1

Case 19" Rack 6U 1

Base System

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Software included

DVM settingProgram to transfer Digital signal to Analog one

Keyer Program to change the chroma keyed background transparent

Hotaction 3D animation control program

3D Max Plugin 3D MAX Data Plugin to transfer to .3d for export format

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1) Overview

FS1000 is the system to send the produced video on schedule. 스케줄에 따라 It This system makes the accurate output time frame by frame and send out for 48 hours continuously on schedule.

Video output on the time when you want, insert ad, logo or the particular image between video playback

In addition to the recorded video, it is possible to switch to the live video on schedule.

4.3 Video automation Server : FS1000

FS1000 system

(It broadcasts video automatically 24 hours 365 days as schedule editing is possible real time on air. )

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Complete automation operating system, operate manually thru programmed script,

Automatic scheduler possible to remote control  

 

2) Advantage of FS1000

Forward On Air 인터페이스

; Script to play back on the scheduled time

; Play back movie clips and insert

music, logo or titles at the specific time.

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Fast switiching to live video sources, recorded program and graphic

; If button pressed, the first or the second live input channel appears

; The live source can be inserted in the middle of the schedule. If the button clicked at random, the live source can be viewed regardless of the schedule

; stop the script and show the title or animated logo type; Fade in/out of logo type is made on slides for upto 5 seconds.

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Accurate playback of the program

FD1000 Digtal video edit software included.

: Forward Capture, AV Studio (=ddclip), Forward Titling, Forward On Air

Forward Capture - Video capture program

If button pressed, inserted video is captured automatically with divided into cllips. Optional to capture the desired parts only

Possible to capture only either audio or video

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Video FormatUncompressed YUV 4:2:2MJPEGDV (Play only)

Video Standard NTSC (720x480) or PAL (720x576)

Video InputComposite upto 4 ch (RCA, 75 Ohm)S-Video upto 2 ch (4-pin miniDIN, 75 Ohm)YUV Component upto 2 ch (BNC, 75 Ohm)

Sampling format YUV 4:2:2, 8-bit

Video OutComposite (RCA, 75 Ohm)S-Video (4-pin miniDIN, 75 Ohm)YUV Component (BNC, 75 Ohm)

Sampling format YUV 4:2:2, 8-bit

3) FS1000 System spec - 1

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4) FS1000 System Spec – 2 PC Based Hardware system / Software provided

CPU Intel P-III 1G 2 or higher

Mainboard ABIT VP6 1

RAM 256M SDRAM 1

HDD Maxtor 120G 8 DATA HDD

HDD Maxtor 40G 1 System HDD

RAID 3WARE 6800 1 Raid controller 8CH

VideoCard ASUS V7700 1

VideoCard 1

SoundCard 1

LAN Card Intel-pro 1

OS WIN2K 1 english or korean

CPU Cooler

Power 400W 1

Case 19" Rack 5U 1

Base System

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Hardware(H/W)

FD100 board 1

FD I/0 Box 1

Option Optical LAN (1G)

Software (S/W)

Forward CaptureVideo Capture

program

AV Studio(=Ddclip)

Video Edit program

Forward TitlingTitling production

program

Forward On Air Output program

Software and Hardware spec

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5. Proposal on System Installation 5.1 Overview

Need to organize and install the lights, cameras and other equipment totally as the studio is where the original source of the original sound and video is created. The separate soundproof construction is not necessary since the virtual studio receives the audio of the lecturer using the pin microphone.

5.2 Components for Studio construction to record

Blue screen(or Key mat): stage with a wall or floor

; To compose the lecturer or actor with virtual space. About 1.5 x1.5~2m to shoot the upper half of the body, 2.5m x 2.5m or bigger to shoot the whole body and consider movement of the actor

[* More than 2 sides of the walls or a big sized stage can be made for the camera movement of variety.]

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Camera

; All types of cameras are good to use including a normal camcoder of

S-VIDEO 가 thru Broadcasting ENG camera (SDI input)

Start to record as the focus and screen size and camera position is fixed.

Movement of the virtual camera can do move PTZ and no need to control

the real camera. Light

; One or two regular lights are good to record since Lights make a little difference. When Key mat is used, a special blue light of Led ring is necessary.

TV Monitor ; To check his (her) own action of the instructor or actor, one monitor is to set up in the front of the stage. Any type of monitor with video input is good. Better quality of the monitor makes checking the action more accurate.

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5.3 System construction Details (Application example)

5.3.1. System Construction

; General type of 3-CCD Digital Camera. More than 2 cameras to be use to make a view of variety (Any types of camera usable)

; A Camera is set up on the three pod stand with the focus and screen sized fixed before recording. Camera man is not needed as VS system control transferring

; The actor can present more conveniently and naturally reading the content without viewer’s notice if the prompter is used.

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5.3.2. Studio Construction example – 1

Blue Screen : Floor,wall

Shooting Studio

Light : installed on truss

TV Monito: checking output

Operator Room

Camera

Speaker

VS2000

FD1000

FS1000

TV Monitor

A Camera is set up on the three pod stand with the focus and screen sized fixed before recording. Set up a TV monitor in front of stage to check the output Operator Room can be divided like this example but it can be constructed inside the shooting studio together in one room

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5.3.3. Studio Construction example–Perspective view

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5.3.4 Extension of the Studio system (example)

Camera Camera Camera Camera

Shooting studio A Shooting studio B Shooting studio CShooting studio D

Monitor MonitorMonitor Monitor

Speaker

VS2000 TV Monitor

Since One operator can run VS2000 system, small space is enough for the studio. Audio is received thru pin microphone of the actor, which is free from noise around. Additional installation of the equipment can be made by dividing the space with assembling structure or partitioning the space.

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5.4 Maintenace

5.4.1 Maintenance of the equipment

Training the use of the system

VS2000 : Train the operator how to connect the cables and how to operate the system.

If the set designed is ordered combined, train the designers how to work on the set and to make the script. (5 days)

FD/ FS1000 : educate how to use for 1-2 days

Provide the operator with the written manual and educate to get used to operating

the system.

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6. Additional application proposal – 2nd project

6.1 Overview

Digitize all the current school resouces

Culture /Education :Make use of broadcasting contents

Internal education using multimedia resources

- Client can receive the signal using software without any

additional hardware installation

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MxTV system of Darim Vision capture and save upto 4 channels of MPEG 1/MPEG2 high quality video on file server real time. Saved video file can be used for producing DVD or VCD title. It is possible to stream the video real time and VOD to multiple clients using software without any additional hardware installation.

To realize this service, the sufficient bandwidth is essential to let multiple clients view the streaming video since it needs the corresponding bandwidth as many times as the clients connects. Otherwise the streaming video quality degrades accordingly.

Multicasting format Darim Vision uses makes it possible to stream to multiple clients without using high bandwidth.

Input video of MxTV system is compatible with composite or S-Video input that VCR or VS system makes and most of A/V signal that general video equipment outputs.

6.2 Project contents

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VS2000 Live Source

File Storage Server

MBC Live

KBS Live

A/V Signal

Scheduled RecordingSystem (4 Ch.)

MPEG 2

MxTV System

6.3 Diagram of multichanel recording system

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6.4 Diagram using MxTV

Mxtv Realtime video streaming

Multi channel Streaming system usingrecorded MPEG1, MPEG2

MxTV Media Encoder(internet streaming)

Classroom 1

Classroom 2

Classroom 3

Classroom 4Satellite

VTR

TV broadcasting MxTV Schedule output

6.4 Diagram using MxTV

MxTV Client / Viewer

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Virtual Lecture E-Learning, Lecture in a virtual classroom

Real Time broadcasting during coming in and out of school Music program, Internal news

Election of student president or chairman : election campaign and ballot counting

Event, Festival: producing the programs for the event to use the system

7. Application Fields