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◆ First
◆Target
◆Concept of multispectral imaging and multiprimary color display
◆Research Activities
◆Research Target
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| ⊿ First |
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Why does color TV show different color ?
Current system is not designed to reproduce accurate color .
It uses analogue signal ; once signal changes, the original .
can not be retrieved except for closed circuit.
Quality control is not applied in general except for broadcasting stations, etc.
Natural Vision is the solution to this problem. |
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| ⊿ Target |
| The technologies for image capture, transmission,
distribution, archiving, and display are being studied to break through
conventional RGB-based systems, the goal is to reproduce super-natural
images with true color, gloss and texture using visual telecommunication
systems. |
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■Reproducing the color just as if the observer were at the site ■ |
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■Reproducing the color just as if the object were placed in front of the observer ■ |
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| ⊿ Concept of multispectral imaging and multiprimary color display |
| ・・・・・Multispectral imaging ・・・・・ |
| Conventional RGB-based camera is difficult
to convert to spectrum sensitivity of our eyes, because of It has
broadly spectrum sensitivity of each primary colors. And current
system doesn't consider difference between illumination for observer
and one for capturer. Multispectral image capture is very effective
in order to caluculate accurate color under illumination for observer. |
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| ・・・・・Multiprimary display ・・・・・ |
The renge surrounded by each primary
colors is color gamut presented by display system. The RGB-based
display system has small range surrounded by 3primary colors. It's
not able to reproduce high chroma color. And now ,multi-primary
color display possible to reproduce color close to visible color
for human eyes. |
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| ・・・・・Data Transmission ・・・・・ |
| It's necessity to construct dedital
archives with camera characteristics, illimination environment and
spectral information for transmission of multispectral imaging.
And It's indispensable to compress and expans kept with high-fidelity
color reproduction. |
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| ⊿ Research Activitie |
| ・・・・・Image Capture ・・・・・ |
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- Multispectral camera systems
- Acquisition of illumination spectrum
- 3-D image capture with natural color for gloss and texture reproduction
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Multispectral camera |
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| ・・・・・ Data Transmission ・・・・・ |
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- Object data structure of spectral information and illumination environment
- Compression and coding of spectral information
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| ・・・・・ Storage and Analysis ・・・・・ |
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- Multispectral Image database
- Feature extraction from spectral information
- Image retrieval using spectral information
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| ・・・・・ Image Display ・・・・・ |
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- Expanding color gamut using multiprimary display
- High-resolution and big-screen multiprimary display by stitching multiple images
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| ⊿ Research Target |
Super reality display
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Natural color reproduction of items
under various illumination environments.
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It's necessity to reproduce accurate
color for Electronic art museum and Telemedicine. |
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Copyright (C) 2002 Natural Vision, All rights reserved.
All rights reserved. - NO Reprodution without parmission -
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