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Alexander Murray and Richard Morse invented and patented the first analog color scanner at Eastman Kodak in 1937. Intended for color separation at printing presses, their machine was an analog drum scanner that imaged a color transparency mounted in the drum, with a light source placed underneath the film, and three photocells with red, green, and blue color filters reading each spot on the ...
Different areas of the surface are imaged as the spacecraft flies forward. A push broom scanner can gather more light than a whisk broom scanner because it looks at a particular area for a longer time, like a long exposure on a camera.
Gamma-ray radiography systems capable of scanning trucks usually use cobalt-60 or caesium-137 [6] as a radioactive source and a vertical tower of gamma detectors. This gamma camera is able to produce one column of an image. The horizontal dimension of the image is produced by moving either the truck or the scanning hardware.
They are also used to facilitate the separation and indexing of documents that have been imaged in batch scanning applications, track the organization of species in biology, [22] and integrate with in-motion checkweighers to identify the item being weighed in a conveyor line for data collection.
If that item is rejected, then attention will move on to the next item and the next, and so forth. The guided search theory follows that of parallel search processing. An activation map is a representation of visual space in which the level of activation at a location reflects the likelihood that the location contains a target.
Different types of analysis modes are available in high-definition SAM. The main three modes are A-scans, B-scans, and C-scans. Each one provides different information about the integrity of the sample’s structure. [6] The A-scan is the amplitude of the echo signal over ToF. The transducer is mounted on the z-axis of the SAM.
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A retinal scan is a biometric technique that uses unique patterns on a person's retina blood vessels. It is not to be confused with other ocular-based technologies: iris recognition , commonly called an "iris scan", and eye vein verification that uses scleral veins.