NCHC Tiled Display Wall

(TDW)

TDW TaskForce : tdw@opensource.nchc.org.tw

National Center for High Performance Computing, Hsinchu 300, Taiwan

1. Goal

TDW(A scalable display wall for the display of large, high-resolution

graphics and visualizations)

The goal of the TDW is to construct a

scalable display wall for the display

of large, high-resolution graphics and

visualizations.

2. Architecture

TDW(A scalable display wall for the display of large, high-resolution

graphics and visualizations)

TDW character: Back-projection, Easy alignment by Controlling projectors within RS232 protocol.

Why to need alignment: calibration of projection image.

1. Projector: Projector misplacement, causing overlap or gap.

2. Photometric and colorimetric non-uniformity among the projectors

3. Deformed image: Projection on non-smooth surface.

3. Hardware

TDW(A scalable display wall for the display of large, high-resolution

graphics and visualizations)

1. 背投螢幕 (Screen):ScanVision WA8168 320cm*180cm\ 穿透型偏光片 glasses 材質

2. 背投影固定架 (Frame): 可調式鋁和金支架，固定投影機以及具位置調整 (Fixed projrction) 。

3. 投影機 (Projectors):24 (2 per tile in 4x3 grid) NEC LT260(1024 x 768)DLP Projectors.

4. 主機 (Computers):13 (12 projector + 1 Server) XEON 2.6Ghz AG Prestonia, 1GB RAM * 4, (GF4 Ti4800SE DDR,DVI,TVout-projector), (Quadro FX 2000 AGP8x-Server), running Debien.

5. 傳輸 (Network):INTEL PWLA8490XT 10/100/1000Mbps,PCI [10/100/1000Mbps] switch.

4. Building

TDW(A scalable display wall for the display of large, high-resolution

graphics and visualizations)

5. Application

TDW(A scalable display wall for the display of large, high-resolution

graphics and visualizations)

5-1. TDW Prototype

Construct 1 x 2 TDW

5-2. TDW in Desktop

Demo in Monitor

5-3. DMX Demo

Share a Virtual

X-Window Screen

in TDW

5-4. WireGL Demo (1)

Display Large Image

5-4. WireGL Demo (2)

Display Large 3D Model

5-4. WireGL Demo (3)

Display 2D Animation

5-4. WireGL Demo (4)

Display 3D Game

5-5. ParaView Demo

Display 3D Model with MPI

6. Control

IvItune(A Projector Alignment Utility -- Architecture Extend from of IvI)

IvI: System Extend (1) - IvItune

IvI: System Extend (2) - IvItune

IvI: System Extend (3) - IvItune

IvI: System Extend (4) - IvItune

IvI: System Extend (5) - IvItune

6-1. Alignment Snapshot

IvItune Live Demo

TDW

Q & A

http://radeon.nchc.org.tw/vis/TDW/

http://darwin.nchc.org.tw/gallery/TiledDisplay/