Fujifilm specialists have developed an image sensor with RGBW pixels enlarged green and white channels
Fujifilm has filed a patent application, which describes the image sensor, markedly different from the existing ones. In the structure of the sensor into account peculiarities of the human visual sensitivity. As is known, the eye is most sensitive to the green portion of the spectrum and the noise easier to allocate the luma than color.In the diagram it is evident that the elements corresponding to the green and white channels have larger dimensions.
It is assumed that such a sensor enables RGBW form an image with less visible noise.
Application was filed with the Japanese Patent Office in June 2012 and published in December 2013.