Photosite
Another name given to the single, light-sensitive area on a CCD that records unique image detail.
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Photosite
Techniques Glossary Photosite
Another name given to the single, light-sensitive area on a CCD that records unique image detail.
Photosite - A small electrode on the sensor that captures a single pixel per photosite.
Picture Elements - Pixels, or the smallest color pattern that can be picked up by digital cameras and displayed on monitors.
Photosite: Where individual elements of an imaging chip are located on the chip.
Pixel: A small single element of a digital image [PICture ELement].
Photosite. A small area on the surface of an image sensor that captures the brightness for a single pixel in the image. There is one photosite for every pixel in the image.
Picture elements. See Pixels.
Photosite
A single photosensitive element in a CCD which translates to one pixel in the resultant image. Also known as a CCD Element
PICT
Macintosh picture. A storage format for digital images designed for the Macintosh.
Small photosites on the sensor. There is nothing you can do about this cause, but it also makes the following causes even more severe.
Photosite
The portion of the silicon chip that functions as the light sensitive area for imagining. Not all of the image sensor is used in the capturing of an image.
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A photosite with a red filter sees only red light and must rely on its neighbors to detect blue and green. Likewise blue and green photosites see only blue and green respectively and can't detect red at all.
Each photosite itself generates electrical noise that can contaminate its neighbor. In a larger image sensor, the photosites can be physically further apart and thus be less affected by that contamination.
Small photosites (which receive very little light), densely packed (increasing the risk of electronic interference), are always likely to generate noise.
Raym`s Photosite
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Unfortunately, each photosite is colorblind. It only keeps track of the total intensity of the light that strikes its surface. In order to get a full color image, most sensors use filtering to look at the light in its three primary colors.
Image sensor A solid-state device containing a photosite for each pixel in the image. Each photosite records the brightness of the light that strikes it during an exposure. Inch One inch (1") is 25.4mm.
65 million photosites. There are a couple of industrial cameras that use the Foveon sensors, but in the DSLR realm, Sigma is the only company using them.
The settings that directly impact light traveling through your lens, exposing the photosites on your sensor, and creating a digitized brightness reading at the output of your camera’ ...
There is a limit to how much charge each pixel or photosite can store. If there is too much charge for one photosite it will overflow to its neighbouring pixel causing an effect which is called blooming or streaking.
To fit the same number of pixels across the smaller 20D sensor the pixels (photosites) must be smaller and therefore they are more 'dense' on the 20D sensor than the pixels on the 1D Mark II sensor.
The number of photodiodes (also known as photosites or pixels) on an image sensor is expressed in megapixels, which in turn is the resolution of the device (a camera, scanner, etc.). Most sensors have one photodiode for each pixel in an image.
Photosites on digital sensors that generate brighter information faster than their neighbors. Hot pixels get brighter at higher ISOs, with longer exposures, and in warmer temperatures.
Additionally, the sensor and photosites must be able to record or understand colors which is accomplished by a filter applied to the surface of the sensor, and which is capable of distinguishing a set range of colors within the recorded image.
A solid-state device containing a photosite for each pixel in the image. Each photosite records the brightness of the light that strikes it during an exposure
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Digital images are made up millions of pixels; tiny square or rectangular photosites that have a specific colour and brightness. A Megapixel (Mp) is the same as 1 million pixels so a 12 Mp image is made up of 12 million pixels.
These diodes convert photons (light) that strikes them into electrons (electrical impulses). The technical name for these diodes is 'photosite'. The brighter the light is that hits the photosite the stronger the electrical charge is that's produced.
The Foveon's advantage is offset by the matrixing required to reconstruct color information from the sensed raw data, which reportedly results in a Foveon sensor with large photosites being unable to equal the low light performance of more ...
Digital cameras work in much the same way, except that instead of using film, the image is captured with an image sensor, which is composed of tiny silicon chips, each with hundreds of thousands of photosensitive diodes called photosites or pixels.
Foveon's X3 CCDs produce colour through an alternative process which layers RGB sensitive photosites on top of each other instead of in horizontal rows.
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It has 12 megapixels of photosites (as the individual pixel sensors are called), but only 6 megapixels of resolution. This puts the megapixel question into a whole new realm and definitely highlights how very different sensors can be.
The larger image sensor of the DSLR has bigger photosites therefore more light gathering capacity and a larger signal to noise ratio.
To overcome this problem manufacturers have incorporated noise reduction systems into their cameras.
CCD Charge-coupled device
An image sensor that reads the charges built up on the sensor's photosites a row at a time.
A CCD transports the charge across the chip and reads it at one corner of the array. An analog-to-digital converter (ADC) then turns each pixel's value into a digital value by measuring the amount of charge at each photosite and converting that ...
 See also: Image, Camera, Sensor, Light, Digital
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