Glossaire technique
Colour cameras
Single chip colour cameras, Three-chip colour camera, Multilayered colour imaging sensor technology
As most people see the world in colour and watch colour television, there is often an expectation that any image shown on a screen should be in full colour, and monochrome images seem somehow inferior.
Correction de champ plat
Technique pour compenser les non uniformités du capteur causé par Fixed Pattern Noise (FPN) et PRNU (Photo Response Non Uniformity) et le cas échéant par une illumination irrégulière.
Éclairages : Modes de déclenchement PIV
Cette fonction est essentiellement utilisée pour la vélocimétrie par image de particules (PIV), une méthode de mesure pour l’analyse d’écoulements (par ex. de fluides).
Extended dynamic range
In slow scientific applications such as astronomy, achieving excellent dynamic range is crucial, as details in the dark areas of an image could be just as important as those in the brighter sections and minimum differences in the grey values should be visible. These cameras often deliver true 14 or 16 bits of dynamic range.
FPN - Fixed Pattern Noise
Photo Response Non Uniformity (PRNU) is - like Fixed Pattern Noise (FPN) - a way of expressing errors in the output from sensors.
Front side or back side illuminated sensors
Conventional sensors are designed to convert the light falling on the front side of the sensor to electrons. As discussed in the article Pixel size and well capacity not all the sensor surface is sensitive to light as the pixel also needs control electronics limiting the fill factor.
GenICam
The GenICam standard (GENeric Interface for CAMeras) provides generic software interfaces for all kinds of machine vision cameras whatever their hardware interface. The underlying interface used, for example, GigE Vision or CameraLink, is of no relevance. New technologies such as Camera Link HS, CoaXPress, or USB3 Vision, also rely on the GenICam standard.
Gigabit Ethernet
Gigabit Ethernet has been driven by industry's need for faster networking communication. The term 'Ethernet' relates to the physical layer (2) in the networking stack model.
GigE Vision
The data rates enabled by Gigabit Ethernet, in combination with the excellent support of many devices, make this technology a good choice for imaging applications.
GigE Vision - Device Discovery
Part of the GigE Vision standard allowing devices on the network to be found.
GigE Vision - driver implementation
The performance level of a GigE Vision system depends strongly on the hardware and software components. High-performance or filter drivers have a strong impact.