Bayer pattern

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Bayer pattern

A widely used filter pattern in a digital camera that uses only a single CCD or CMOS chip, which is the sensor technology in most cameras. Invented by Bryce Bayer at Kodak, the Bayer pattern dedicates more pixels to green than to red and blue, because the human eye is more sensitive to green. The additional green pixels produce a better color image.

No Bayer Pattern in Three-Chip Cameras
In contrast, a three-chip digital camera uses three sensors. A beam-splitting prism separates the red, green and blue coming from the lens and directs each color to its own sensor chip.

Bayer Interpolation
When the camera converts its Bayer sensor data into a color image format such as JPEG, the uneven distribution of sensor colors has to be converted into an even number of red, green and blue subpixels. Also known as "de-Bayering," this interpolation can cause artifacts especially at the edges of objects in the scene. See purple fringing, CCD sensor, CMOS sensor, RAW image format, digital camera and X3.

Bayer Filter Pattern
Although there are other photosensor patterns in use, the Bayer pattern is the most common. However, all filter patterns capture more green than red and blue.
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References in periodicals archive ?
The RYYB HUAWEI SuperSpectrum Sensor deviates from the traditional RGGB Bayer filter by replacing green pixels with yellow pixels, yielding a high maximum ISO rating of 409,600 on the HUAWEI P30 Pro and 204,800 on the HUAWEI P30.
The company claimed that unlike the traditional sensors that have RGBG Bayer filter, its SuperSpectrum Sensor with RYYB filter lets in 40 percent more light and yields a high maximum ISO rating of 204,800 and 409,600 on the phone.
The RYYB SuperSpectrum Sensor deviates from the traditional RGGB Bayer filter by replacing green pixels with yellow pixels, yielding a high maximum ISO rating of 409,600 on the P30 Pro and 204,800 on the P30.
The color image sensors are equipped with the on-chip BPF array (i.e., Bayer filter) that has three spectral ranges for primary colors (i.e., RGB) to separate the visible wavelength range into three colors [12].
To do this, in digital cameras, the surface of CCD array is covered with Bayer filter. As it is shown in Fig.
Color chips are really the same as monochrome chips, with the only difference being that they're topped by a thin, multicolored layer called a Bayer filter. This is a grid of microscopic filters with one red, green, or blue filter (in a ratio of 25%, 50%, and 25%, respectively) over each pixel on the detector.
The proprietary technology will see SamsungAaAeAeA replace the green pixels in aAaAeAeA traditi Bayer filter pattern in RGB technology with white pixels.
The sensors are covered by a filter in a checkerboard pattern known as a Bayer Filter. This filter has red, blue and green squares on it.
The Bayer filter demosaicing algorithm, (Kimmel 1999), converts the raw image pixels from a Bayer color filter array into RGB values for every image pixel, as shown in Figure 1.
Huawei claims that the camera has 1/1.7-inch Huawei SuperSpectrum Sensor with a RYYB Bayer filter which is claimed to capture 40 percent more light.
Because the Bayer filter divides the sensor into three images (50% green, 25% red, and 25% blue), the information is inherently of lower resolution than images captured with a monochrome camera.

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