2. any of several diagnostic radiologic techniques, including computed tomography, magnetic resonance imaging, and positron emission tomography. ning, scans v.tr. A scanner that provides a flat, glass surface to hold a sheet of paper, book or other object for scanning. Definition - What does Flatbed Scanner mean? Flatbed scanners are particularly effective for bound documents. A positron emission tomography (PET) scan is an imaging test that allows your doctor to check for diseases in your body. A flatbed scanner is an optical scanner which makes use of a flat surface for scanning documents. It has become obsolete in medical imaging, largely replaced by the gamma camera since the late 1960s. There are two construction forms: the stagnant and the moving fingerprint scanner. b. 3. a manner of utterance characterized by somewhat regularly recurring pauses. The image is not very good when the finger is not regularly dragged over the scanning area. You can complete the translation of scanner given by the French Definition dictionary with other dictionaries such as: Wikipedia, Lexilogos, Larousse dictionary, Le Robert, Oxford, Grévisse . Define scanner. Learn more. Positron emission tomography (PET) is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, regional chemical composition, and absorption.Different tracers are used for various imaging purposes, depending on the target process within the body. Definition - What does Scanner mean? 2. A type of optical scanner that consists of a flat surface on which you lay documents to be scanned. Stagnant: The finger must be dragged over the small scanning area. To look at carefully or thoroughly, especially in search of something; examine: The sailor scanned the horizon for signs of land. A laser line can be used to scan (read) the changes. There are five basic kinds of barcode readers -- pen wands, slot scanners, Charge-Couple Device ( CCD ) scanners, image scanners, and laser scanners. The first mark sense scanner was the IBM 805 Test Scoring Machine; this read marks by sensing the electrical conductivity of graphite pencil lead using pairs of wire brushes that scanned the page. Noun 1. digital scanner - an electronic device that generates a digital representation of an image for data input to a computer image scanner, scanner data... Digital scanner - definition of digital scanner by The Free Dictionary. It explains in computing terminology what Scanner means and is one of many hardware terms in the TechTerms dictionary. Computers To search (stored data) automatically for specific data. A scanner that is moved by hand over the material being captured. See complete definition. Anti-Virus Scanner: An anti-virus scanner is a component of an anti-virus software package that scans a hard drive for viruses and other harmful items. In some cases, an audio output device can be used as an input device, in order to capture produced sound. [source?] Margaret Rouse asks: Is it just me, or have printers failed to evolve along with other technologies? The scanner converts the light energy into electrical energy, which is then converted into data by the decoder and forwarded to a computer. 3. a. With Reverso you can find the French translation, definition or synonym for scanner and thousands of other words. Audio input devices allow a user to send audio info to a computer for processing, recording, or carrying out commands. The laser scanners are also called barcode readers. Scanner definition, a person or thing that scans. Join the Discussion. scanner Imaging A popular term for a device used for various imaging procedures–eg, CT scanner Instrumentation A device that measures differences in chromatic or radioactive intensity on a 2-D matrix–eg, electropherogram or chromatogram, to quantify various substances To look over quickly or read hastily: I scanned the newspaper while eating breakfast. Search scanner and thousands of other words in English definition and synonym dictionary from Reverso. The term lidar was originally a portmanteau of light and radar. Fingerprint scanner; Barcode reader; 3D scanner; Laser rangefinder; Eye gaze tracker; Audio input devices. flatbed scanner meaning: 1. a piece of computer equipment with a flat glass base on which you lay a document or book in…. Audio input devices are used to capture sound. The lines are read by a scanner and changed into numbers. These programs are made for various operating systems, and scanning methods can be manual or automatic. Word of the Day. It is now also used as an acronym of "light detection and ranging" and "laser imaging, detection, and ranging". The scan uses a special dye containing radioactive tracers. A rectilinear scanner is an imaging device, used to capture emission from radiopharmaceuticals in nuclear medicine. Definition. If you find this Scanner definition to be helpful, you can reference it using the citation links above. It is designed that it can be read forwards or backwards, so the user does not have to be careful how a product is put in front of the reader. This is cheaper and less reliable than the moving form. n. 1. All definitions on the TechTerms website are written to be technically accurate but also easy to understand. scanning [skan´ing] 1. close visual examination of a small area or of different isolated areas. The scanner is capable of capturing all elements on the document and does not require movement of the document. Un scanner, ou scanneur [1], [2], aussi appelé numériseur à balayage [3], est un périphérique informatique qui permet de numériser des documents ou autres, comme les empreintes digitales par exemple. Network scanning is mainly used for security assessment, system maintenance, and also for performing attacks by hackers. This page contains a technical definition of Scanner. Moving: The finger lies on the scanning area, while the scanner runs underneath. Depending on the scanner device type and manufacturer, handheld scanners can also define, translate, and hear printed text, and can also store and beam text to computers and other devices. A scanner is an electronic device which can capture images from physical items and convert them into digital formats, which in turn can be stored in a computer, and viewed or modified using software applications. The Wikipedia Scanner offers a variety of ways to search for anonymous edits and links to an editor's list of particularly "salacious" edits. One that scans: a scanner of newspapers. A pen wand is the simplest barcode reader. History. 1. a. WikiScanner is a free, Web-based database application that tracks the source IP address es of computers used to edit anonymous Wikipedia entries. A small handheld scanning device used for digitizing images. Dual-energy X-ray absorptiometry (DXA, previously DEXA) is a means of measuring bone mineral density (BMD) using spectral imaging.Two X-ray beams, with different energy levels, are aimed at the patient's bones.When soft tissue absorption is subtracted out, the bone mineral density (BMD) can be determined from the absorption of each beam by bone. Optical Scanner: An optical scanner is an input device using light beams to scan and digitally convert images, codes, text or objects as two-dimensional (2D) digital files and sends them to computers and fax machines. While images from a handheld scanner are considered low quality, today's technology enables full color 24 bit scanning. How to use scanner in a sentence. Un scanner analyse le document en mesurant sa réflectance élément de surface par élément de surface. Flatbed scanner definition: a computer-controlled device which electronically scans images placed on its flat plate ,... | Meaning, pronunciation, translations and examples scanner synonyms, scanner pronunciation, scanner translation, English dictionary definition of scanner. A type of scanner used to capture the highest resolution from an image. Fingerprint Scanner: A fingerprint scanner is a type of technology that identifies and authenticates the fingerprints of an individual in order to grant or deny access to a computer system or a physical facility. Network scanning refers to the use of a computer network to gather information regarding computing systems. digital scanner synonyms, digital scanner pronunciation, digital scanner translation, English dictionary definition of digital scanner. See more. 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