Dr. Ynjiun P. Wang Profile

Dr. Ynjiun P. Wang

at Honeywell International Inc

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Proceedings Article | 28 January 2009 Paper

MonoColor CMOS sensor

Ynjiun Wang

Proceedings Volume 7249, 724902 (2009) https://doi.org/10.1117/12.815373

KEYWORDS: Image fusion, CMOS sensors, Sensors, Cameras, Image quality, Optical filters, RGB color model, Pixel resolution, Image sensors, Image resolution

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A new breed of CMOS color sensor called MonoColor sensor is developed for a barcode reading application in AIDC industry. The RGBW color filter array (CFA) in a MonoColor sensor is arranged in a 8 x 8 pixels CFA with only 4 pixels of them are color (RGB) pixels and the rest of 60 pixels are transparent or monochrome. Since the majority of pixels are monochrome, MonoColor sensor maintains 98% barcode decode performance compared with a pure monochrome CMOS sensor. With the help of monochrome and color pixel fusion technique, the resulting color pictures have similar color quality in terms of Color Semantic Error (CSE) compared with a Bayer pattern (RGB) CMOS color camera. Since monochrome pixels are more sensitive than color pixels, a MonoColor sensor produces in general about 2X brighter color picture and higher luminance pixel resolution.

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