a radar dish that rotates or oscillates in order to scan a broad area an electronic device that generates a digital representation of an image for data input to a computer someone who scans verse to determine the number and prosodic value of the syllables
An optical device that converts images - such as photographs - into digital form so they can be stored and manipulated on computers Different methods of illumination transmit light through red, green and blue filters and digitize the image into a stream of pixels
A device that can read text or illustrations printed on paper and translate the information into a form the computer can use A scanner works by "digitizing" an image and placing it on the computer as a file
A device that uses light to read printed information and converts it into the computer in a digital form for editing
(n) A computer input device used to capture information on paper and translate the information into a raster (bitmapped) computer image Scanners can be used to convert a drawing created with traditional tools to a CAD drawing, to convert and enhance photographs in desktop publishing, or to input text information into the computer
A machine that scans a printed image, such as a photograph or a page of text, and turns it into a file that can be displayed and manipulated on a computer
a radio receiver that that moves automatically across some selected range of frequencies looking for for some signal or condition; "they used scanners to monitor police radio channels"
{i} person or thing that scans; peripheral device used to convert objects or images into digital images (Computers)
The instrument carried aboard the satellite which views the earth Examples are AVHRR, CZCS, SeaWiFS and MODIS Typically the scanner is simultaneously sensitive to a number of parts (bands) of the visible and infra-red spectrum It will rotate, scanning the earth directly underneath the satellite (the sub-satellite point) from left to right The data will then be transmitted to earth as one scan-line, typically 1000 to 2000 points across, each point having values for the parts of the spectrum seen By the time the scanner comes back to the start the satellite will have progressed so a different part of the earth is seen See also Sensor
An image input device that interprets the reflected light from a physical image and translates it into a stream of pixels, digitized raster data or a stream of bits
a device that attaches to your computer that will convert printed material into images on the computer
An input device for a computer that digitizes a photograph or other optical image into a binary representation A scanner may be linked to optical character recognition software allowing printed documents to be converted directly to machine-readable text files
An electronic input device that converts art or continuous - tone images into digital form Digital scanners convert line art (black-and-white), monochrome images (gray levels), and full-color images into pixel arrays Some scanners are also color separation machines that use circuits to color-correct, compress the tone, and enhance detail