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A 3D scanner in a library. Calibration panels can be seen on the right. Geometric distortions by optics and perspective must be compensated by a calibration of the measuring equipment, using special calibration patterns and surfaces. A mathematical model is used for describing the imaging properties of projector and cameras.
An optical comparator (often called just a comparator in context) or profile projector is a device that applies the principles of optics to the inspection of manufactured parts. In a comparator, the magnified silhouette of a part is projected upon the screen, and the dimensions and geometry of the part are measured against prescribed limits .
The combination R-G-B = HH-HV-VV combines radar images of waves sent and received horizontally (HH), sent horizontally and received vertically (HV) and sent and received vertically (VV). The calibration of such instruments is done by imaging objects (calibration targets) whose radar brightness is known.
The Snell & Wilcox Test Chart #2 (or SW2) is used for general adjustments of video processors, mixing equipment, and display devices such as CRT TVs and projectors. Main features and tests allowed by the chart are: [12] [14] [3] Boundary markers (arrows for overscan check) Interlace check (black box with oblique white line)
Projector-Camera Calibration Toolbox; Tutorial on Coded Light Projection Techniques; Structured light using pseudorandom codes; High-accuracy stereo depth maps using structured light; A comparative survey on invisible structured light; A Real-Time Laser Range Finding Vision System; Dual-frequency Pattern Scheme for High-speed 3-D Shape Measurement
Quickmatch Tool is a proprietary calibration program used to create the Faroudja Video Optimized settings. It connects to the Faroudja video SoC in the TV and interfaces with a colorimeter light sensor attached to the TV screen. Specific test patterns are generated which are detected by the colorimeter and processed by the QuickMatch program.
A simple example is an overhead projector transparency. Usually when the term SLM is used, it means that the transparency can be controlled by a computer. SLMs are primarily marketed for image projection, displays devices, [1] and maskless lithography. [citation needed] SLMs are also used in optical computing and holographic optical tweezers.
A host of functions required for ECU software calibration, such as interface-dependent calibration methods, calibration data management, measurement data visualization and analysis, ECU programming, vehicle bus monitoring, as well as remote control through standard interfaces, are part of the product's functional complement.
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