An infrared device used in satellites and rockets to determine a heat horizon for the Earth at altitudes (above 200 miles) where the visible horizon cannot be discerned. The device scans the infrared emittance of the Earth, determining the horizon...

A disc composed of a series of holographic optical elements that diffract light at various angles. When spinning, a raster...

Any of the photoelectric and thermal detectors, spectrographs and monochromators, thermographs, scanners, amplifier tubes,...

Enhanced picture archiving and communication system (PACS) display (ePAD) is a software tool used in medical imaging to...

Microscopy is a scientific technique that involves the use of microscopes to observe and study objects that are too small to...

A point cloud is a set of data points in a three-dimensional coordinate system, where each point represents a specific...

The record formed on paper by a scanner.

Also known as analog thermogram. The resultant photograph, illustrating, in tones ranging from black to white, the spatial...

1. To center an image or place it in any part of the television screen desired. Also applies to stills. 2. A single image of...

An instrument that uses a beam of light to scan a color transparency, and three differently filtered photosensors to record...

Line scan refers to a method of capturing images or data by scanning a single line at a time, as opposed to capturing the...

A television camera tube in which a low-velocity electron beam scans a photoactive mosaic that has been created by an...

A strip or annulus of glass coated with a semitransparent material such as inconel. The coating thickness, and as a result...

Raster scanning process like that of television: each line is scanned successively.

RGB stands for red, green, blue, which are the primary colors of light used in additive color mixing. The RGB color model is...

A nonmagnetic instrument utilizing an electrofocus and deflection tube with a photocathode for imaging purposes. The optical...

Time-lapse optical coherence tomography (OCT) refers to a medical imaging technique that captures a series of sequential OCT...

An imaging device originally created to image whole mouse brain volumes at microscopic resolution. The main component of the...

A contour mapping technique that uses electronic scanning and sampling techniques instead of a reference grating (see moire...

Selective laser melting (SLM) is an additive manufacturing (AM) or 3D printing technology that belongs to the powder bed...

The process by which the light from the images of photographic film is encoded into electrical signals for video...

A multifaceted holographic disc that is rotated by a motor to deflect incident light to a scanning system's lens.

A night-vision device that uses one or more infrared transducers to scan a scene in the 3- to 5-µm or 8- to...

A variation of the atomic force microscope that operates by scanning a tiny ferromagnetic probe (or a magnetized tip) over a...

The scanning of photographs or transparencies of images, either by a vidicon camera or flying spot scanner, for the...

Pushbroom scanning is a technique used in remote sensing and imaging systems, particularly in satellite and aerial sensors,...

A device composed of a light source and phototube used to scan a moving strip of material in photoelectric side-register...

In imaging technology, a device that converts raster or line-scan data to pixel form for further processing.

A scanning device used to cyclically tune through a given frequency range to determine the amplitude-frequency distribution...

A line-scan camera, also known as a line-scan image sensor or linear array camera, is a type of digital camera designed to...

A device that permits the adjustment of facsimile transmitters and recorders so that their scanning lines stop and start at...

A ground-based navigation beacon that emits pulsed signals which are picked up by aircraft making an instrument (blind)...

1. A device used to trace out an object and build up an image. One of the most common of these types is video scanning. The...

A scanning technique in which the optical density of the film being scanned controls the speed of deflection of the scanning...

A technique used to measure the mode-field diameter of an optical fiber by scanning one fiber past another at a distance of...

Instantaneous field of view (iFOV) is a term commonly used in the context of remote sensing, imaging systems, and optical...

A powerful method, referred to as FCS, for determining the average diffusion coefficients of fluorescent molecules in...

The process of mapping the infrared emittance of an area through the use of an infrared detector and related scanning...

A method that uses electronic means to move the scanning spot along the scanning line.

The technique for measuring the index profile of an optical fiber by scanning the entrance face with the vertex of a high...

The scanning of a region in a given sequence of slender, straight parallel strips.

In a cathode-ray tube, the deflection of the beam of the tube over an angle that surpasses the angle that subtends the...

Scanning electron microscopy (SEM) is an advanced imaging technique used in microscopy to obtain high-resolution,...

Scanning characterized by the generation of a plane or right circular cone with a vertex angle of about 180° by the...

Abbreviation of "synchronization.'' In television, the timing signals used to drive the scanning process. Horizontal...

Nanopositioning refers to the precise and controlled movement or manipulation of objects or components at the nanometer...

A group of photosensors arranged in a grid-like pattern covering the entire field of view, enabling them to record it all at...

The picture formed by the scanning beam of electrons in a scanning electron microscope.

A laser diode module is a compact device that incorporates a laser diode, optics, and often other components into a single...

A display device having a thermoplastic film as the control layer medium. The film, moving from a playoff reel, is scanned...

A measurement technique used to determine the spatial distribution profile of an electrical or optical quantity of interest...

An electron tube that stores and visually displays information by means of a cathode-ray-beam-scanning and charge-storage...

Laws that predict the maximum power output as a function of tube diameter for a hydrogen cyanide laser of a given discharge...

An imaging device analogous to a drum scanner, but operating at greater speeds; it uses a row of sensors to traverse an...

A spectroscopic technique that combines the high chemical specificity of Raman scattering and signal sensitivity provided by...

The instrument used to collect thermal radiation information on an object by scanning. It consists basically of a detector,...

In field-sequential color television, the rotating tricolor disc placed between the subject and the lens, or between the...

A device used to transmit and receive images that have been converted to electrical signals over regular telephone lines; it...

Monolithic self-scanning linear image sensor array for multichannel spectroscopy with a spectral range of from 200 to 1000...

A high-resolution imaging instrument that can detect and measure the positions of individual atoms on the surface of a...

Image distortion that occurs when the axes of the original image are not perpendicular in the resulting image, making the...

The number of unique ways in which a part can move in an alignment system. In static alignment, there are six: one in the...

The holographic recording of the pattern formed by two sets of coherent microwaves that interfere at a scanning plane. A...

An automatic scanning instrument that is used to study a substance's fluorescence over a wide range of wavelengths. It...

A device that measures the spatial distribution of energy perpendicular to the propagation path of a radiant beam. An energy...

An optical barcode reader, commonly known as a barcode scanner, is a device that uses optical technology to capture and...

A device designed to enlarge the image of a microscopic object by television process. It may be a flying spot scanner that...

The number of fields scanned per second in a television system. The US standard is 60. Also called field frequency.

A microscope design that involves apertures inserted in conjugate plane positions inside the microscope, with one aperture...

Also called scanning laser acoustic microscope. A device that uses high-frequency ultrasound waves to penetrate surfaces. A...

Beam profiling is a technique used to characterize and analyze the spatial intensity distribution of a laser beam. It...

Parallel scanning refers to a method of acquiring data or images simultaneously from multiple sources or in parallel, rather...

1. The continuous thin strip marked by the scanning beam. Generally, during return of the scan, the line is blanked out. 2....

A document-transmitting process that uses a cylinder that rotates the document to be scanned and detected by a photoelectric...

1. In raster scan television, one of the two scans that are interlaced to make up a frame. 2. See field of view.

A device that changes the number of lines per frame of a video image to adapt to a lower resolution format, either by...

The picture area scanned per second.

A spectroradiometer having a means to scan different regions of the light spectrum, providing simultaneous representations...

An acousto-optic modulator (AOM) is a device that utilizes the interaction between sound waves and light waves to modulate...

A phase reflection scanner that eliminates the need for a complex translation device while maintaining a high-energy-density...

The resulting interference pattern generated from moiré deflectometry, the moiré pattern is a pattern...

Referring to the bandwidth and spectrum location of the signal produced by television or radar scanning.

Complex devices, often involving a computer, in which a photograph is scanned by a point of light, the amplitude of the...

Rolling shutter artifacts are distortions or visual anomalies that can occur in images or videos captured by cameras with...

The method of acquiring characteristic x-ray spectra from microscopic samples by use of the combination of a scanning...

Technique using a fiber optic assembly to illuminate an opaque object and transmit an image back from it without a lens...

The series of equally spaced parallel slits that make up a scanning aperture in place of a single slit, in the scanning of a...

A photosensitive device used to optically scan and read character data (numbers, letters etc.) and input this data into a...

A television system that uses a slow rate of horizontal scanning to increase its reproduction and transmittance accuracy of...

A linear image sensor is a type of solid-state electronic device used to capture and convert light into electrical signals....

A scanning process in which the greatest amount of radiation determines part of a spiral motion rotating in one direction.

A dichroic mirror, also known as a dichroic beamsplitter or interference filter beamsplitter, is an optical device that...

A microscope that uses a flying spot scanner, directed through the eyepiece, as a light source to determine the features of...

A loss of resolution or detail in a television signal caused by the size of the electron scanning beam.

The storage surface of an electron beam tube that is scanned by an electron beam to generate an output-signal current...

A scanner in which a fiber optic assembly replaces a lens system.

Complex devices, often involving a computer, in which a photograph is scanned by a point of light, the amplitude of the...

Biometrics refers to the automated recognition of individuals based on their physiological or behavioral characteristics....

The spot illuminated on a cathode-ray tube by the initial impact of the scanning ray and the screen.

1. The anode or anticathode of an x-ray tube that emits x-rays when bombarded by electrons. 2. The screen in a television...

An instrument similar to the spectroheliograph, but having a scanning method that is performed by a pair of rapidly...

The pattern of lines traced by rectilinear scanning in display systems.

See atomic force microscope; magnetic force microscope; near-field scanning optical microscope; scanning tunneling...

A technique for determining the nonlinear optical properties of a sample material by moving the sample through a focused...

A character generation CRT that functions on the principle of secondary emission. The target holds a set of aluminum...

An electron-beam lithography (EBL) system is a sophisticated nanofabrication tool used in the semiconductor industry and...

An electron-gun system is an assembly used to generate and control a focused beam of electrons. Electron guns find...

A device consisting of a disc with a spiral arrangement of holes that is used to convert visible patterns into electrical...

A type of mosaic detector array that combines features of scanning and staring sensors by using a small rapid scanning...

The successive analysis or synthesizing of the light values or other similar characteristics of the components of a picture...

Photographing of terrain on the ground and objects in the air by cameras mounted in aircraft; utilized in satellites,...

Hyperspectral imaging is an advanced imaging technique that captures and processes information from across the...

An atomic force microscope (AFM) is a high-resolution imaging and measurement instrument used in nanotechnology, materials...

Developed for use in military reconnaissance systems, it consists of a polygonal mirror, drive motor, interface between...

In an interlaced scanning electro-optical system such as television, the system resolution will be less than the number of...

Measures by heterodyning interferometry the local slope of a vibrating sample. The method allows the reconstruction of a...

A rotating component with a series of flat reflective surfaces around the perimeter that is used in scanning systems to...

Describing the standard television method of raster scanning in which the image is the product of two fields, each of which...

Area scan, in the context of imaging and cameras, refers to a method of capturing an entire two-dimensional image in a...

A diode laser is a type of laser that uses a semiconductor diode as the active medium to generate coherent light....

A scanning probe microscope that analyzes the surface of a specimen by recording the intensity of light as it is focused...

A device used to determine the location and attitude with respect to the Earth of orbiting spacecraft by detecting the...

A measurement of the spatial resolution of a line or area array in an optical character recognition scanning device.

A method in optical character recognition in which a mobile light beam scans the outlines of characters for subsequent...

A method of scanning in which a frame transfer device produces a continuous video image of a moving object by means of a...

An astronomical scanning technique for capturing images of stars without moving the sensor. To perform a drift scan, a CCD...

The use of miniature scanners to project raster-scanned video images directly onto the surface of the human retina,...

An electron microscope that uses a beam of electrons -- accelerated to high energy and focused on the sample -- to scan the...

The term "embedded laser" typically refers to a laser device that is integrated or embedded into a larger system or...

A type of recording in which the recording line remains fixed and the recording medium is fed past the recording device.

A sequential scanning device, utilizing a revolving lens, in which the cathode-ray tube image is transformed into a circle...

The method by which photographic film is scanned by an electron beam. One technique uses the uniform light of a television...

The signal-to-noise ratio (SNR) obtained with a Fourier transform spectrometer when detector noise prevails, which exceeds...

Optical coherence tomography (OCT) is an imaging technique used in medical diagnostics and biomedical research to obtain...

A device used to scan images or information on photographic film for the subsequent relay of information.

A display in which regeneration takes place serially at a fixed speed in a set pattern through the scan lines.

Also known as RAMP microscopy, random access multiphoton microscopy is a microscopic technique that uses multiple...

A Risley prism, also known as a Risley prism pair or Risley rotating prism, is an optical device used for controlling the...

Attenuation refers to the gradual loss or reduction of intensity, force, or magnitude of a particular property as it...

A scanning laser radar system applied to transmission and concentration analysis in three dimensions of clouds as well as...

A GaAlAs laser is a type of semiconductor laser diode that emits light in the near-infrared region of the electromagnetic...

Piezoelectric motion systems are mechanical systems that utilize piezoelectric materials to generate controlled motion or...

An image-processing device that scans in a straight line parallel to the axis of a rotating cylinder to which the material...

A camera used in scintillation recording to make a visible record of the distribution and relative concentration of...

The number of times per second that the frame of a television system is completely scanned. In the United States, 30 per...

A camera tube widely used in television broadcasting. It consists of three sections within a single vacuum envelope. 1. A...

A category of systems designed to communicate a photo taken from the air (e.g., aircraft, balloon, satellite) to a ground...

The formation and display of three-dimensional images by ultrasonic energy. In one technique, the energy pulses from an...

A reticle carrying patterns of various forms that can be rotated in an optical beam to cause variations in the intensity of...

An optical scanning device designed to read information printed in the form of bars of different size by detection and...

An optical scanning system found in most computer scanners that can read documents, often in many type styles, and convert...

A hologram facet illumination technique in which the illuminating beam is twice the size of the hologram facet so that full...

Spectral domain optical coherence tomography is an imaging technique used in medical diagnostics, particularly in...

A method used in facsimile scanning that sweeps the elemental area across the copy in a spiral motion as the result of the...

A microdensitometer that contains a scanning stage to provide simultaneous representations of position vs. density.

In television, the number of individual pixels that can be distinguished in a horizontal scanning line; also called...

The electron beam tube of a television camera that converts an optical image into a pattern of electrostatic charges and...

A galvanometric scanner, also known as a galvanometer scanner or galvo scanner, is a type of optical scanning device used to...

A camera designed to form a continuous record of an expansive section of the horizon. The typical panoramic camera is...

1. The direct storage of data as bits in memory using optical systems and properties. The memory makes use of a laser beam...

A two-dimensional scanning process, in which a slow sector scan, propagated in one direction, is superimposed at right...

The maintenance of the same scanning relationship between the transmitting scanning spot and receiving scanning spot for...

The intensity distribution seen when scanning the image of a line, in the direction perpendicular to that line.

A device used to scan, with a small, intensely bright spot, portions of a picture surface and to transform the original...

A system mounted a few inches above a moving plane that consists of a light source, lenses and one or more phototubes. In...

A system by which consumer products are assigned a bar code that is read by a scanner at a cash register, enabling...

The superimposition of a pilot object on each hologram. The fixed relative position of the scanning and pilot beam during...

A family of lenses commonly used in scan systems for reading or printing documents. The lens must be designed such that the...

In optics, a motion controller refers to a device or system that precisely controls the movement of optical components, such...

A scanning technique in which the object is illuminated the entire time, and in which picture elements of the object are...

A scanning technique in optical character recognition in which an array of photocells is used to scan each character to...

A direct recording photometer that is designed to scan a photographic negative to determine its points of isodensity.

Technique using functional optical microscope with the addition of a coherent source collinear with the image path. The...

A computer-generated hologram (CGH) is a holographic image produced using computational methods and algorithms, rather than...

A cathode-ray tube that generates symbols for use in other displays. The tube operates by scanning specific characters on...

Calorimetry is a branch of science that involves the measurement of heat flow in physical or chemical processes. It...

Lidar, short for light detection and ranging, is a remote sensing technology that uses laser light to measure distances and...

In interlaced television scanning, an effect in which the lines of one field fail to fall exactly within the lines of the...

A cylindrical lens is an optical component that has different curvatures along its two orthogonal axes, resulting in a shape...

A cathode-ray tube that serves as a picture tube in a television receiver. The signal representing the picture intensity is...

Whole slide imaging (WSI), also known as virtual slide microscopy or digital pathology, is a technology that involves the...

A camera tube that employs a high-velocity electron beam to scan a photoemissive mosaic and to store electrical charge...

A GRIN (gradient index) lens is a type of optical lens that utilizes a gradient in refractive index across its volume rather...

Optical coherence tomography (OCT) is a non-invasive imaging technique used in medical and scientific fields to capture...

A nondestructive testing method for very large scale integration circuits, using a scanning electron microscope to monitor...

Made up of four elements; for instance, gadolinium, scandium, gallium and garnet (GSGG).

An instrument in which an image of the sun is scanned by the entrance slit of a monochromator, the exit slit simultaneously...

A type of liquid-crystal display in which each display element contains an active component, such as a thin-film transistor,...

An optical system used to collect infrared energy from a scene using scanning optics with a point or line detector, as...

The movement of the eye as it focuses on details of a scene. Some imaging systems mimic this movement by small, rapid...

Digital Imaging and Communications in Medicine (DICOM) is an international standard for medical imaging created by both the...

Optical character recognition (OCR) is a technology that is used to convert printed or handwritten text into...

The reproduction of a picture or image, produced by scanning the image and converting it into electrical signals that carry...

3D Laser Triangulation - A technology that allows sensors to probe the surroundings. Laser triangulation systems have an...

1. The photosensitive membrane on the inside of the human eye. 2. A scanning mechanism in optical character generation.

A light, radar or electron beam used to scan according to a particular method.

The deflection of a beam of electrons, at regular intervals, across a cathode-ray tube screen, according to a definite...

An erasable data recording and storage medium that uses a laser to heat the crystalline surface of the disc to a certain...

An instrument used to record the emittance or reflectance of an object by scanning with discrete spectral resolution over a...