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location Dictionary Terms

laser designator
A laser device used to establish a location or target usually for detection by an impact source e.g. missiles and guided...
ultrasonic
Ultrasonic refers to sound waves with frequencies higher than the upper audible limit of human hearing, typically above...
stencil CRT image generation
The projection of the image beam by a cathode-ray tube through a mask, where it is deflected through the suitable character...
processed hologram
A superposition of many zone plates, each reconstructing a real and virtual point image at the appropriate locations upon...
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...
edge sensing, second derivative
Technique for the precision evaluation of coincidence of a laser beam's center with the edge of the object under study and...
hololens
A series of permanent holograms in dichromated gelatin formed by opening total page-composer apertures and setting a point...
dwell time
For a detector, the amount of time alotted for the observation of one location.
fan-in
The simultaneous collection of two or more signals at a single location. In a digital computer, it refers to the number of...
excimer laser coronary angioplasty
Excimer laser coronary angioplasty (ELCA) refers to a medical procedure used in the treatment of coronary artery disease....
Murty interferometer
A form of shearing interferometer that contains a simple wedged (plane-parallel) glass plate with a nonzero optical path...
fiber optics
The use of thin flexible glass or plastic fibers as wave guides — or "light pipes" — to channel light from one...
positioning
Positioning generally refers to the determination or identification of the location or placement of an object, person, or...
dislocation
The region of distorted atom configuration formed between the displaced and normal areas in a crystal when part of the...
epifluorescence microscopy
Fluorescence imaging technique in which the excitation light from the objective is directed into the sample producing...
single molecule localization microscopy
Single molecule localization microscopy (SMLM) is a group of super-resolution microscopy techniques that surpass the...
telemetry
The science of sensing and measuring information at some remote location and transmitting the data to a convenient location...
error function
A single number, defined by the computer program or the user that expresses the performance of an optical system. Also known...
image correlation
A machine vision technique that compares a template of the desired image (the correlation kernel) with the actual camera...
laser-mediated gene transfer
Laser-mediated gene transfer refers to a technique in molecular biology and genetic engineering that utilizes lasers to...
design and engineering consulting services
Design and engineering consulting services refer to professional services provided by specialized firms or individuals to...
edge detection
In image processing, the location of edges by employing templates that respond to the first or second derivative of...
pushbroom scanning
Pushbroom scanning is a technique used in remote sensing and imaging systems, particularly in satellite and aerial sensors,...
autoradiography
The photographic recording of the distribution and location of radioactive substances found in a specimen. The record formed...
nadir
In a remote sensing system, nadir refers to the point on the ground located vertically below the center of the system. In...
incident light meter
An exposure meter designed to measure the light striking an object and used at a suitable location in a scene.
video
Referring to the bandwidth and spectrum location of the signal produced by television or radar scanning.
plane densitometer
An instrument designed to give precise and rapid detection of changes in tumor growth as well as the location of small...
optical Fourier transform
The optical Fourier transform is a mathematical operation applied to optical signals that involves transforming a spatial...
laser lithotripsy
Laser lithotripsy is a medical procedure that uses laser energy to break down or fragment stones in various parts of the...
boundary extraction
In optical character recognition, an intermediate step between character location and feature extraction.
diurnal aberration
Atmospheric aberration caused by the Earth's rotation; the degree varies from 0 at the poles to a maximum of 0.31 s of arc...
local area network
Data communications network in a clearly defined geographical location, and extending no more than a few miles in length. It...
conical scan sensor
A device used to determine the location and attitude with respect to the Earth of orbiting spacecraft by detecting the...
RTSP protocol
RTSP, or real-time streaming protocol, is a network control protocol designed for controlling streaming media servers. It is...
achromatic point
Location on the CIE chromaticity diagram which produces the color white for a given light source at a specified temperature.
calibrated wedge
An optical wedge in which transmittance or density is a function of the location of the wedge, relative to a specific...
intensified charge-coupled device camera
An intensified charge-coupled device (ICCD) camera is an advanced imaging device that combines the capabilities of both an...
fiber optic imaging bundle
A fiber optic imaging bundle is a specialized optical device composed of multiple optical fibers bundled together. Each...
luminous paint
A mixture of phosphor with a trace of a radioactive element that emits faint light continually. It is used on watch dials...
point cloud
A point cloud is a set of data points in a three-dimensional coordinate system, where each point represents a specific...
aerotriangulation
In aerial photography, the geometric method of indicating the three-dimensional location of ground points from a pair of...
fan-out
The distribution of one signal to more than one location. In a digital computer, it refers to the number of outputs that can...
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...
augmented reality
Augmented reality (AR) is a technology that integrates digital information, typically in the form of computer-generated...
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...
phototheranostics
Phototheranostics, a portmanteau of "photo" (light), "therapy," and "diagnostics," refers to an emerging field that combines...
lattice energy
With respect to the crystal, the decrease in energy that follows the process whereby the ions, separated from each other by...
remote active spectrometer
A device employed to identify toxic agents lingering on the ground or in the air from up to three miles away, by using laser...
stereoscopic photography
The photographing of a scene from positions corresponding to the locations of both eyes. A viewing device is used to present...
fluorescent protein
Fluorescent proteins are proteins that exhibit the property of fluorescence, which is the ability to absorb light at a...
address
The code signifying the location of the information being sought on a CD-ROM.
B-scope
A cathode-ray display where information is represented visually as spots. Each spot's location is represented by a...
conjugate holographic image
Also known as real holographic image. The indistinct, highly distorted image produced on the side of the hologram closest to...
noise equivalent irradiance
The amount of spatial noise detected equivalent to the output emission location of the giving source.
fiber optic sensor
A fiber optic sensor is a device that uses optical fibers to detect and measure physical, chemical, biological, or...

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