kenji kato · 2020. 8. 6. · kenji kato senior research engineer asrc federal nasa ames research...
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Kenji KatoSenior Research EngineerASRC FederalNASA Ames Research Center
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Ø Operationally Based Vision Assessment (OBVA)
Ø Study Human Vision and Testing Standards in Operationally Relevant Test Environments
• Collaborative effort between NASA Ames and �Air Force Research Laboratory (AFRL)
• USAF School of Aerospace Medicine (USAFSAM) Sponsored Research Project
8/11/16 4Why an Eye Limiting Display Resolution Matters
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Ø Young USAF pilots�have an average of �20/13 visual acuity
Ø Average FAA flight�simulator today has a�visual acuity of 20/40
Ø Most vision testing focus on acuity, while color and contrast differential testing are limited at best
8/11/16 5Why an Eye Limiting Display Resolution Matters
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8/11/16 6Why an Eye Limiting Display Resolution Matters
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7NASA - Operationally Based Vision Assessment (OBVA) Simulator8/11/16
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8NASA - Operationally Based Vision Assessment (OBVA) Simulator8/11/16
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Ø To achieve 20/10 visual acuity we designed a�150 megapixel simulation environment• 20,480 x 7,200 pixels in a 4 meter spherical dome• Max ~160° horizontally and ~60° vertically
Ø 6000 lumen brightnessØ Color space meets or exceeded aviation RGBØ 60 Hz refresh rate minimum• Capable of 120 Hz to minimize motion artifacts
8/11/16 9Why an Eye Limiting Display Resolution Matters
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8/11/16 10Why an Eye Limiting Display Resolution Matters
Centrifuge Facility at WPAFB Converted for Simulator Use
Computer Room
Operator Control RoomConference
Room
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8/11/16 11Why an Eye Limiting Display Resolution Matters
Ø 15 True 4K (4096x2400) projectors
Ø 5x3 Grid Array
Ø Design to supports up to 25 projectors
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Ø Each Out The Window IGR Can Drive Two �4K Projectors
HIC cables
8/11/16 12Why an Eye Limiting Display Resolution Matters
4 DVI-D cables to each projector
IGR:1U PC with Dual-HIC
DualQuadro
Plex 70004K Projectors
8192x2400 Horizontal Desktop
4096x4800Vertical Desktop
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8/11/16 14Why an Eye Limiting Display Resolution Matters
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8/11/16 15Why an Eye Limiting Display Resolution Matters
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8/11/16 16Why an Eye Limiting Display Resolution Matters
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Ø Display synchronization is critical to maintain seamless visual across multiple projectors
8/11/16 18Why an Eye Limiting Display Resolution Matters
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Ø Nvidia G-Sync II• Host and IG synced from �
master digital signal clock
8/11/16 19Why an Eye Limiting Display Resolution Matters
CAT5E
CAT5E
Slave Slave Slave… Slave
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Ø Low system latency is critical to interaction• Refresh rate is NOT latency!�
Ø Home Theater 100-500+ msØ Video Games 80-300+ msØ RIG Setup for OBVA 20-56 ms
3/18/2013 20Why an Eye Limiting Display Resolution Matters
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Ø IG Manager (IGM) ApplicationØ IG Renderer (IGR) Applications• Windows 7 Ultimate 64-bit Operating System• RIG Out-the-Window built on:
o NVIDIA SceniX SDK scene manager (OpenGL)o Scalable Display Technologies Easyblend SDK �
for distortion correction and edge blending o Sundog SilverLining Atmosphere Special Effects SDK
8/11/16 21Why an Eye Limiting Display Resolution Matters
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Ø RIG-DBGS Tools allow for semi-automated terrain database generation• Take advantage of multiple data sources:
o High resolution aerial and satellite imageryo 3D elevation data setso Vector and GIS data sets
• Utilizes Google Earth Pro & Presagis Creator ProØ 3D cultural features interoperable�
with existing OpenFlight databases8/11/16 22Why an Eye Limiting Display Resolution Matters
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8/11/16 23Why an Eye Limiting Display Resolution Matters
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Operationally Based Vision Assessment (OBVA) Simulator
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Operationally Based Vision Assessment (OBVA) Simulator
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Operationally Based Vision Assessment (OBVA) Simulator
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