colour with KODAK TRUESENSE colour filter
improves on standard Bayer pattern giving increased photographic speed
Improving an old standard
Conventional colour image sensors are typically designed using the "Bayer
Pattern" which is an arrangement of red, green, and blue (RGB) pixels,
in which half the pixels on the sensor detect green light, with the other
pixels evenly split to detect red and blue light. Software then reconstructs
a full RGB image mathematically after final exposure of the single image
Kodak's innovative TRUESENSE
At a recent vision trade exhibition, Kodak demonstrated the first integration
of the its TRUESENSE colour filter pattern on a CCD image sensor.
|How the TRUESENSE
colour filter pattern works
|The TRUESENSE colour-filter pattern builds on the standard
Bayer pattern by adding panchromatic or "clear"
colour pixels (sensitive to all visible wavelengths) to the
RGB pixels on a sensor.
Figure 1: Image capture
using conventional Bayer Pattern
Figure 2: Image capture
using Kodak TRUESENSE colour filter
Because no visible-light wavelengths are excluded,
a black-and-white image is detected with high sensitivity.
This panchromatic information is then combined with the RGB color
information and a final image is generated with increased
This technology increases the overall sensitivity of the sensor,
enabling an increase in photographic
speed for improved low-light, high-speed imaging.
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