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DataRay Inc. - ISO 11146-Compliant Laser Beam Profilers
data Dictionary Terms

high-density storage
Extensive data storage in the form of bits, with the use of high-resolution photographic materials and optics, and generally a laser.
duplex
In data communications, the simultaneous operation of a circuit in both directions is known as full duplex; if only one...
digital video compression
A step-by-step method of reducing the amount of data in a digital video signal to transmit or store a high-quality image....
high-loss fiber
Optical fiber in which the attenuation exceeds the normally acceptable level for long-haul or data communications use.
mixed-signal oscilloscope
A mixed-signal oscilloscope (MSO) is a type of electronic test instrument that combines the capabilities of both a...
display
The observable illustration of an image, scene or data on a screen such as a console or cathode-ray tube, seen as a graph,...
fiber distributed data interface
A standard for fiber optic data transmission systems being developed by the American National Standards Institute (ANSI) and...
infrared light source
An infrared light source is a device that emits light in the infrared spectrum, which lies beyond the visible spectrum of...
spectral flow cytometry
Spectral flow cytometry is an advanced flow cytometry technique that expands the capabilities of traditional flow cytometry...
spatial light modulator
A spatial light modulator (SLM) is an optical device that modulates or manipulates the amplitude, phase, or polarization of...
remote sensing
Remote sensing is a method of data collection and observation where information about objects, areas, or phenomena on...
ultrasonic imaging
The formation and display of three-dimensional images by ultrasonic energy. In one technique, the energy pulses from an...
terahertz spectrometer
A terahertz spectrometer is a scientific instrument used to measure and analyze the properties of materials in the terahertz...
machine vision
Machine vision, also known as computer vision or computer sight, refers to the technology that enables machines, typically...
power modulation
Power modulation refers to the intentional variation of power levels in a signal, often in the context of electronic...
internet of things
The internet of things (IoT) refers to a network of interconnected physical devices, vehicles, appliances, and other objects...
amplitude shift keying
In digital data transmission, the representation of a bit by change in amplitude of the outgoing signal. Amplitude shift...
metropolitan area network
A cable backbone used to interconnect local area networks at various sites (corporate offices and factories, for example) in...
CD-ROM (compact disc read-only memory)
An adaptation by Philips and Sony of their audio compact disc technology for optical disc data storage and retrieval....
volumetric imaging
Volumetric imaging refers to the capture, visualization, and analysis of three-dimensional (3D) information from a volume of...
token
In a local area network, a unique signal that travels from one node or station to another, providing them serially with...
fiber optic preform
A fiber optic preform is a cylindrical glass rod or tube used as the starting material for manufacturing optical fibers. It...
clock
A signal, generated by an oscillator, that provides the means of synchronization of operations in a data communications...
infrared light-emitting diode
An infrared light-emitting diode (IR LED) is a semiconductor device that emits infrared light when an electric current...
simplex
A fiber optic transmission system in which data can go in only a single direction.
CID camera
CID, or charge injection device, camera refers to a type of imaging device that utilizes a specific kind of solid-state...
optical switching
Optical switching refers to the process of controlling the routing or transmission of optical signals within a network using...
serial transmission
A mode of data transmission whereby each bit is generated in sequence on a single carrier.
hyperspectral resolution
Hyperspectral resolution refers to the level of detail or granularity in the spectral information captured by a...
integrated photonics
Integrated photonics is a field of study and technology that involves the integration of optical components, such as lasers,...
synchronous optical network
A standard for fiber optic telecommunications interfaces, with a 1300-nm data link operating over single-mode fiber at data...
erasable
Data or encoded information capable of being eradicated, leaving the media free for rewriting. Also called reversible.
photonic crystals
Photonic crystals are artificial structures or materials designed to manipulate and control the flow of light in a manner...
dual-wavelength spectrophotometry
Spectrophotometry in which radiation of two separate wavelengths, usually one in an absorption band and the other not, pass...
windowing
A technique for reducing data processing requirements by electronically defining only a small portion of the image to be...
indium gallium arsenide camera
An InGaAs (indium gallium arsenide) camera is a type of imaging device that utilizes InGaAs sensors to capture images in the...
plasmonics
Plasmonics is a field of science and technology that focuses on the interaction between electromagnetic radiation and free...
transport shift register
The element in a charge-coupled device that receives the charge packets transferred from the line of sensor sites and then...
Kerr soliton
A Kerr soliton refers to a specific type of soliton, a self-reinforcing wave packet, that arises in nonlinear optical...
2D profile sensor
A 2D profile sensor is a type of sensor used in various industrial and technological applications to measure and capture...
discrete cosine transform
A mathematical transformation used in image and video compression that changes two-dimensional representation of data into...
parity
In data transmission, a self-checking code using a separate bit (the parity bit) to assure that all bytes of transmitted...
voxel
An element within a three-dimensional data set image.
time smear
The elongation of a transmitted data pulse through a fiber optic due to the chromatic dispersion of the fiber material.
parallel/serial converter
A device that converts data transmitted in the parallel mode to a sequence of bits at a single frequency for output in the...
terahertz
Terahertz (THz) refers to a unit of frequency in the electromagnetic spectrum, denoting waves with frequencies between 0.1...
magneto-optic readout device
A device using the Kerr effect to read back the signals from mechanically recorded tapes and discs. It consists of a light...
photochemical hole burning
A method of producing disks for erasable optical data storage. Information is recorded by a laser beam that generates pits...
facsimile chart
Data gathered by a facsimile system and converted into graphic, readable form; generally used in meteorology. Also known as...
lock-in amplifier
A lock-in amplifier is a specialized electronic instrument used to extract and measure small signals embedded in noise or...
neuromorphic vision sensor
A neuromorphic vision sensor is a type of imaging device designed to mimic the structure and functioning of the human visual...
digital
Denoting the use of binary notation; i.e., the representation of data by bits (1 or 0).
local area network
Data communications network in a clearly defined geographical location, and extending no more than a few miles in length. It...
synchronous transmission
A mode of transmission whereby the sending and receiving stations operate continuously at a fixed relationship of phase and...
reflective spectroscopy
Reflectance spectroscopy is a technique used to analyze the reflective properties of materials across various wavelengths of...
pushbroom scanning
Pushbroom scanning is a technique used in remote sensing and imaging systems, particularly in satellite and aerial sensors,...
drive
The hardware for reading (and writing in devices so equipped) an optical mass data storage disk.
swept-source laser
A swept-source laser, also known as a wavelength-swept laser, is a type of laser that rapidly and continuously changes its...
data bus
A system incorporated into fiber optic data communications characterized by several spatially distributed terminals that are...
holographic tomography
Holographic tomography is an advanced imaging technique that combines holography and tomography to provide three-dimensional...
digital twin
A digital twin refers to a virtual representation or digital counterpart of a physical object, system, or process. This...
photoelectric reader
An input device for a computer that detects and reads the data, in the form of punched holes in cards, by light that is...
magnetic disc
A plastic disc coated with ferric oxide or other films on which data can be stored by selectively magnetizing areas of the...
proof-of-concept system
An assembly of prototype instruments, equipment and/or software designed to perform all the functions of a concept or idea...
advanced tactical air reconnaissance system
An aerial reconnaissance system that can transmit, in near real time, image data recorded by IR and visual-spectrum sensors,...
pit
The micrometer-size depressions that store data digitally in an optical data storage medium.
optical read-only memory
Generic term for read-only optical data storage, source of the Philips-Sony term CD-ROM.
integrated services digital network
A set of international standards by which a single telecommunications channel is used to transmit voice and data...
optical disc
A rigid medium, generally a polycarbonate substrate coated with a reflective aluminum layer, that stores information (such...
integration time
Integration time, in the context of optics, imaging systems, and sensor technology, refers to the duration over which a...
calorimetry
Calorimetry is a branch of science that involves the measurement of heat flow in physical or chemical processes. It...
atmospheric refraction correlation
Formulaic compensation to correct laser ranging data for the effects of horizontal refractivity gradients; it requires the...
event-based sensor
An event-based image sensor, also known as a dynamic vision sensor (DVS), is a type of digital imaging device designed to...
detector array
A detector array refers to a collection of individual detector elements arranged in a two-dimensional grid or matrix format....
multispectral imaging
Multispectral imaging is a technique that involves capturing and analyzing images at multiple discrete spectral bands within...
CCD image sensor
A CCD image sensor, or charge-coupled device image sensor, is a type of electronic device used to convert optical images...
optical head
In compact disc and CD-ROM technology, the portion of the drive that projects the laser light onto the surface of the media...
double-raster format
A mode of laser printing in which each pixel is printed four times, providing sharper lines and a continuous tone from...
node
In a communications network, a point at which data are received or from which they are sent. Though the term often is used...
fiber optic cable assembly
A fiber optic cable assembly refers to a complete unit consisting of optical fibers, connectors, protective jackets, and...
inverse problem
Any problem that requires retrieval of the distribution of some internal properties, such as temperature concentration,...
positioning
Positioning generally refers to the determination or identification of the location or placement of an object, person, or...
single-molecule FRET
Single-molecule Förster resonance energy transfer (smFRET) is a specialized technique in biophysics and molecular...
frequency shift keying
In digital data transmission, the separation of the two binary states into output at two frequencies.
photostore
The photographic recording of data, in binary form, for storage in memory. Exposure is achieved by a cathode-ray tube or by...
optical character recognition
Optical character recognition (OCR) is a technology that is used to convert printed or handwritten text into...
mode 1 (and mode 2)
In compact disc systems, the two principal frame formats for data storage. Mode 1 devotes 2048 bytes to user data, reserving...
linear image sensor
A linear image sensor is a type of solid-state electronic device used to capture and convert light into electrical signals....
telemeter
1. The term used to describe any of the many instruments used to remotely record physical dimensions, such as strain,...
augmented reality
Augmented reality (AR) is a technology that integrates digital information, typically in the form of computer-generated...
parallel scanning
Parallel scanning refers to a method of acquiring data or images simultaneously from multiple sources or in parallel, rather...
plastic optical fiber
Plastic optical fiber (POF) is a type of optical fiber made from transparent plastic, typically polymethylmethacrylate...
stochastic optical reconstruction microscopy
Stochastic optical reconstruction microscopy (STORM) is a superresolution microscopy technique that enables imaging of...
knife-edge scanning microscope
An imaging device originally created to image whole mouse brain volumes at microscopic resolution. The main component of the...
line scan
Line scan refers to a method of capturing images or data by scanning a single line at a time, as opposed to capturing the...
optical barcode reader
An optical barcode reader, commonly known as a barcode scanner, is a device that uses optical technology to capture and...
analog
A physical variable that is proportionally similar to another variable over a specified range. An analog recording contains...
enhanced picture archiving and communication system display
Enhanced picture archiving and communication system (PACS) display (ePAD) is a software tool used in medical imaging to...
tellurium
The material favored for study of interaction of high-acoustic intensities with free carriers. Tellurium is the...
photonic integrated circuit
A photonic integrated circuit (PIC) is a compact and integrated device that incorporates multiple photonic components and...
electrostatic storage
Information storage on a dielectric medium that represents the data as those spots on the medium having electrostatic...
magneto-optics
Magneto-optics refers to the study and manipulation of the interaction between magnetic fields and light (electromagnetic...
paraxial focus
Focus derived from paraxial data.
data cube
A multidimensional array of values that is commonly used in programming to describe a time series of image data. Each...
Weissenberg method
The Weissenberg method, named after the German physicist Karl Weissenberg, is a technique used in x-ray crystallography for...
optical fiber
Optical fiber is a thin, flexible, transparent strand or filament made of glass or plastic used for transmitting light...
whole slide imaging
Whole slide imaging (WSI), also known as virtual slide microscopy or digital pathology, is a technology that involves the...
bit boundary block transfer
A data transfer function that moves a rectangular group of pixels between bit maps. Often used in displaying cursors and...
ring topology
A system of local area networking in which each node or station is connected to two others, ultimately forming a loop. Data...
Winchester drive
A sealed, hard, magnetic disc drive used for the storage of data in a computer system.
antialiasing
In image processing, methods of reducing image defects that result from false data. Techniques include sampling, linear...
raster image processor
In imaging technology, a device that converts raster or line-scan data to pixel form for further processing.
lensless microscopy
Lensless microscopy, also known as computational or holographic microscopy, is an imaging technique that captures and...
fluorescence lifetime imaging
Fluorescence lifetime imaging (FLIM) is an advanced imaging technique that provides information about the lifetime of...
parallel transmission
A mode of data transmission whereby bits of information are carried simultaneously at different frequencies over a single...
hyperspectral imaging camera
A hyperspectral imaging camera is a sophisticated imaging device capable of capturing and processing data across a wide...
point cloud
A point cloud is a set of data points in a three-dimensional coordinate system, where each point represents a specific...
Raman fiber probe
A flexible fiber cable with a small diameter that transports light from the excitation laser to the target. Used in Raman...
optical Fourier transform
The optical Fourier transform is a mathematical operation applied to optical signals that involves transforming a spatial...
optical fiber optic switches
Optical fiber optic switches are devices used in optical fiber communication systems to selectively route optical signals...
forward-looking infrared
A night-vision device that uses one or more infrared transducers to scan a scene in the 3- to 5-µm or 8- to...
stroboscopic interferometry
A pulsed interferometer that permits the continuous quantitative mapping of the surface deformation of an adaptive optical...
optical data storage
The storage of information via optical means, primarily employing a low-power laser to inscribe data on a photosensitive...
aperture card
A combination 80-column computer card containing a 35-mm microfilm frame. Reference data can be punched onto the card to...
phase-change optical disc
An erasable data recording and storage medium that uses a laser to heat the crystalline surface of the disc to a certain...
low-loss fiber
Optical fiber that transmits a greater percentage of input light than does high-loss step-index fiber. Low-loss fiber...
differential pulse code modulation
A method of coding image data by storing in memory only differences in brightness of each pixel from that of its nearest...
holographic camera
A holographic camera, also known as a holographic imaging system or holographic recorder, is a specialized device used to...
single molecule localization microscopy
Single molecule localization microscopy (SMLM) is a group of super-resolution microscopy techniques that surpass the...
read-write head
That part of a magnetic or optical tape or disc drive that retrieves data from or records data on the recording media.
link
In data communications, the instrumentation connecting two stations: transmitters, receivers and the cable that runs between...
asynchronous transfer mode
A method of data multiplexing that can provide large, instantaneous bandwidths for busy traffic while permitting slow...
electron trapping optical memory
A method of erasable optical data storage in which information is stored by visible light, then read by illumination with an...
high-content screening
Also known as HCS, an analytical method designed to collect statistically relevant amounts of quantitative data on many...
fiber-coupled LED
A fiber-coupled LED (light-emitting diode) refers to an LED device that is optically coupled to an optical fiber for the...
cathode-ray output
A term used in data processing to describe a cathode-ray tube that displays graphic or character data.
CoaXPress
CoaXPress (CoaXPress or CXP) is a standardized digital interface and communication protocol used primarily in machine vision...
optics
Optics is the branch of physics that studies the behavior and properties of light, including its interactions with matter...
flow cytometry
Flow cytometry is a powerful technique used in biology and medicine for the quantitative analysis of the physical and...
data analysis display
An accurate cathode-ray tube display used to provide visual representation stored in a computer for the interpretation and...
dye-polymer optical disc
A type of erasable data storage device that uses a medium deposited on the disc in two layers, each dyed to absorb a...
digital-to-analog converter
In image processing, a device that transforms the digital data into an analog video image that can be viewed on a monitor or...
effective data rate
A characterization of the throughput performance of data storage systems; the EDR is the total of data retrieved divided by...
network interface card
A network interface card (NIC), also known as a network adapter or LAN adapter, is a hardware component that allows...
aerial photography
Photographing of terrain on the ground and objects in the air by cameras mounted in aircraft; utilized in satellites,...
quantitative phase imaging
Quantitative phase imaging (QPI) is an advanced imaging technique used in microscopy to measure and analyze the optical...
fiber optic spectrometer
A fiber optic spectrometer is a device used for measuring the spectral content of light. It utilizes optical fibers to...
surface-enhanced Raman optical data storage
A technique of optical storage whereby information is encoded by molecular alterations in the interaction between the...
spatially offset Raman spectroscopy
Spatially offset Raman spectroscopy (SORS) is a technique that extends traditional Raman spectroscopy by incorporating...
optical correlator
A device incorporating a spatial light modulator and a reference filter; used for matching an input optical waveform or...
holography
Holography is a technique used to capture and reconstruct three-dimensional images using the principles of interference and...
Camera Link HS
Camera Link HS (high speed) is a standard developed for high-speed digital data transmission in machine vision and...
spectral repeatability
Spectral repeatability refers to the consistency and reproducibility of spectral measurements across multiple trials or...
photonic computer
A type of computer in which the electronic circuits, which process data serially, are replaced by photonic circuits capable...
holographic memory
The storage of data as bits in memory by holographic processes. The laser beam is divided into reference and object beams,...
machine learning
Machine learning (ML) is a subset of artificial intelligence (AI) that focuses on the development of algorithms and...
fiber-linked array image formatter
A wide-field multiobject spectroscopy system used in astronomy, in which a bundle of low-loss optical fibers positioned on...
log converter
A device designed to convert linear change in the light state at input to log data at output.
machine vision system
A machine vision system is an integrated combination of hardware and software components designed to capture, process, and...
deep learning
Deep learning is a subset of machine learning that involves the use of artificial neural networks to model and solve complex...
magnetic bubble film
An amorphous film in which cylindrical bubbles of reverse magnetization can be formed to follow circuit paths usually made...
display console
A visual display used with a computer to give access to the many elements of data as an array of points. With the display...
computer vision
Computer vision enables computers to interpret and make decisions based on visual data, such as images and videos. It...
input/output
I/O stands for input/output. In computing, it refers to the communication between a computer system or program and its...
etaloning
Etaloning is an optical phenomenon that occurs in imaging systems, particularly in devices such as spectrometers,...
neuromorphic
Neuromorphic refers to the design and development of computing systems or devices that are inspired by the structure and...
near-infrared spectrometer
A near-infrared (NIR) spectrometer is an analytical instrument used to measure the absorption, transmission, or reflection...
swept source optical coherence tomography
Swept-source optical coherence tomography is an imaging technique used in medical diagnostics, particularly in...
spatial light interference microscopy
Spatial light interference microscopy (SLIM) is an optical microscopy technique that belongs to the category of quantitative...
blue diode laser
A blue diode laser is a type of semiconductor laser that emits light in the blue wavelength range of the electromagnetic...
GigE
GigE, short for gigabit Ethernet, refers to a standard for high-speed Ethernet communication, capable of transmitting data...
digital camera
A digital camera is a device that captures and records still images or video in digital format. Unlike traditional film...
optoelectronics
Optoelectronics is a branch of electronics that focuses on the study and application of devices and systems that use light...
videodisc
A disc whose surface contains recorded digital data at high-packing densities arranged in concentric rings. The data,...
virtual histology
Virtual histology refers to the use of digital technology and computational methods to simulate or recreate histological...
breakout cable
A breakout cable, also known as a fan-out cable or breakout assembly, is a type of cable that combines multiple individual...
packet switching
The transmission of data in groups (packets) of information~comma~ each handled as an aggregate.
electron multiplication charge-coupled device camera
An EMCCD (electron-multiplying charge-coupled device) camera is a type of scientific camera specifically designed for...
microchannel spatial light modulator
A device to modulate spatially a collimated coherent beam of light with input data in optical data processing. It uses a...
direct read after write
A write-once optical disc storage system in which the optical head reads continuously while writing to check the accuracy of...
kinoform filter
A computer-generated kinoform used for data processing because of its use of incoherent light and its wide field of view,...
write once, read many (WORM)
An optical data storage device that permits the user to store data (write) and play it back (read), but not to erase or...
quantum key distribution
Quantum key distribution (QKD) is a method of secure communication that utilizes principles from quantum mechanics to...
photogrammetry
Photogrammetry is a technique used to obtain accurate three-dimensional measurements of objects and environments through the...
optical tape recorder
An instrument used for video or computer data storage in which a laser optical head is used to write digital information...
error correcting code
The addition to the information signal in communications of redundant bits that enable the originally encoded message to be...
fiber optic transceiver
A fiber optic transceiver, often simply referred to as an "optical transceiver," is a device used in fiber optic...
distributed feedback laser
A distributed feedback laser (DFB laser) is a type of semiconductor laser diode designed to emit coherent, narrow-bandwidth...
hyperspectral imaging
Hyperspectral imaging is an advanced imaging technique that captures and processes information from across the...
transfer rate
The rate at which data can be read from a CD-ROM.
contouring
Selection of specific brightness values or minimum threshold levels as contingencies for the display of digital data.
MEMS fiber optic switch
A MEMS fiber optic switch is a microelectromechanical system (MEMS) device designed to selectively route optical signals...
thematic mapper
An instrument used to record infrared images of large areas. The recorded data are used to produce maps in false color...
embedded vision
Embedded vision refers to the integration of computer vision technologies into various embedded systems, devices, or...
infrared spectroscopy
The measurement of the ability of matter to absorb, transmit or reflect infrared radiation and the relating of the resultant...
optical testing instrument
An optical testing instrument is a device or system used to evaluate and measure the performance, quality, and...
optical memory
1. The direct storage of data as bits in memory using optical systems and properties. The memory makes use of a laser beam...
pseudocolor
In image processing, generating a color image from monochrome data by assigning a color to each of the gray levels.
cache
A portion of computer memory that is used for temporary storage of frequently accessed data. Substantially increases...
fiber optic guided missile
A weapon launched from a ground-based platform and controlled by a two-way fiber optic data link. The fiber is payed out...
buffer
1. In fiber optics, a protective material applied as an optical fiber cover that has no optical function. 2. In image...
spectral centroid
Average wavelength usually determined for light-transmitting devices by taking a weighted average for each wavelength of the...
remote inspection
Remote inspection refers to the process of inspecting, evaluating, or monitoring assets, equipment, infrastructure, or...
hydrogenated amorphous silicon
A photoreceptor material used in solar cells and in drums for laser printers and high-speed copiers because of its high...
process control
The collection and analysis of data relevant to monitoring the rate and quality of industrial production, either...
telemetry
The science of sensing and measuring information at some remote location and transmitting the data to a convenient location...
passive-matrix OLED display
An OLED display formed by creating an array of OLED pixels connected by intersecting anode and cathode conductors arranged...
lens testing equipment
Lens testing equipment refers to a range of specialized tools and instruments used to evaluate the optical performance,...
high-speed motion camera
A high-speed motion camera, also known as a high-speed camera or slow-motion camera, is a specialized imaging device...
read-write capability
In an optical data storage system, denoting the optical head's ability both to record information and to detect it for...
near-infrared spectroscopy
Near-infrared spectroscopy (NIRS) is a non-invasive analytical technique that uses the near-infrared region of the...
spectral signature
A spectral signature, in the context of remote sensing and spectroscopy, refers to the unique pattern or characteristic...
temporal Fourier hologram
A technique used to suppress extreme noise amplification during digital image reconstruction that relies on smoothing and...
simultaneous location and mapping
Technology that uses data from an array of sensors, one of which is commonly lidar, to solve the problem of creating a map...
asynchronous transmission
A mode of data transmission whereby each bit of information is generated separately, with some stop/start code to indicate...
micro-robotics
Micro-robotics refers to the field of robotics that involves the design, development, and application of miniature robotic...
downstream laser
A laser that sends data from the source to the distribution node.
modulator
A modulator is a device or component that modifies a carrier signal in order to encode information for transmission over a...
spectroradiometer
A spectroradiometer is a device used to measure the intensity of light at different wavelengths across the electromagnetic...
multiple instruction/multiple data
A computer architecture used in parallel processing whereby all the processing elements are operating under their own local...
frequency domain
The frequency domain is a concept used in signal processing and analysis to represent signals and data in terms of their...
parallel processing
In imaging, the processing of pixel data in such a way that a group of pixels is analyzed at one time rather than one pixel...
optical character reader
A photosensitive device used to optically scan and read character data (numbers, letters etc.) and input this data into a...
data link
The communications network between nodes of a data transmission system.
FTIR spectrometer
FTIR (Fourier transform infrared) spectrometer is a powerful analytical instrument used to obtain an infrared spectrum of...
femtosecond laser
A femtosecond laser is a type of laser that emits ultrashort pulses of light with durations on the order of femtoseconds,...
RTSP protocol
RTSP, or real-time streaming protocol, is a network control protocol designed for controlling streaming media servers. It is...
light fidelity
LiFi, short for light fidelity, is a wireless communication technology that utilizes visible light or infrared light to...
laser rangefinder
A laser rangefinder is a device that uses laser technology to measure the distance between the device and a target. It...
aerial survey
The creation of a planned sequence of data input that is obtained while airborne for use in aerial photogrammetry and other...
star topology
In local area networking, arrangement of the satellite nodes around a central node through which all routing of network data...
computer-generated hologram
A computer-generated hologram (CGH) is a holographic image produced using computational methods and algorithms, rather than...
spatial resolution
Spatial resolution refers to the level of detail or granularity in an image or a spatial dataset. It is a measure of the...
helmet-mounted display
A compact optical projection system, mounted on or built into a helmet, and used to project data or a scene directly into...
free-space optics
Free-space optics (FSO), also known as optical wireless communication or optical wireless networking, refers to the...
storage area network
A high-speed network or subnetwork that provides a connection between servers and data storage devices.
biometrics
Biometrics refers to the automated recognition of individuals based on their physiological or behavioral characteristics....
single instruction/multiple data
A computer architecture used in parallel processing whereby the processing elements are directed by a single, central...
array processor
In image processing, a specially designed programmable computer peripheral that attaches to the host system for the purpose...
computer-output microfilm system
A camera system capable of producing microfilm copies of computerized data presented on a screen.
data compression
A method of storing digital data using techniques that consume less memory space than basic methods do. See differential...
scanner
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...
infrared modulated ellipsometry
A direct method of measuring refractive index that works best with flat-surfaced samples (i.e., those that are not dependent...

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