Video sensor technology
Encyclopedia
A video sensor describes a technique of digital image analysis. A video sensor
is application software
, which interprets images. Video sensors use programmable algorithms running on a computer
.
Video sensors are used to evaluate scenes recorded by a video camera. Objects and their characteristics (size and speed for example) are verified and compared to the pre-set examples or templates. When there is a match between object and model, then the frame and the object
s are marked digitally. The operator can recall the digital marked images for further use.
Video sensors are mostly deployed with video surveillance (CCTV
) systems. The commercial use of video sensors is increasing. Two main applications are electronic security
and market research
.
Sensor
A sensor is a device that measures a physical quantity and converts it into a signal which can be read by an observer or by an instrument. For example, a mercury-in-glass thermometer converts the measured temperature into expansion and contraction of a liquid which can be read on a calibrated...
is application software
Application software
Application software, also known as an application or an "app", is computer software designed to help the user to perform specific tasks. Examples include enterprise software, accounting software, office suites, graphics software and media players. Many application programs deal principally with...
, which interprets images. Video sensors use programmable algorithms running on a computer
Computer
A computer is a programmable machine designed to sequentially and automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem...
.
Object (image processing)
An object in image processing An object in image processing is an identifiable portion of an image that can be interpreted as a single unit or is an identifiable portion of an image that can be interpreted as a single unit....
s are marked digitally. The operator can recall the digital marked images for further use.
Video sensors are mostly deployed with video surveillance (CCTV
Closed-circuit television
Closed-circuit television is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors....
) systems. The commercial use of video sensors is increasing. Two main applications are electronic security
Security
Security is the degree of protection against danger, damage, loss, and crime. Security as a form of protection are structures and processes that provide or improve security as a condition. The Institute for Security and Open Methodologies in the OSSTMM 3 defines security as "a form of protection...
and market research
Market research
Market research is any organized effort to gather information about markets or customers. It is a very important component of business strategy...
.