An image trigger initiates the capture of single or multiple frames of a digital camera by analysing the signals of its sensor.
For capturing and analysing of fast moving objects (e.g. as in quality control of production lines) modern high speed cameras are frequently used. Typically the initiation of an image-series starts as soon as the object is entirely visible in the field of the camera.
By using a so-called "image trigger" this task can be done much faster and more accurately, without the cost and effort of additional equipment as in standard methods (for instance, via cable release).
The on-board "ImageBLITZ" image trigger uses the live picture of the camera itself as a flexible and accurate sensor, with the result that the process synchronisation takes care of itself.[1]
By using CMOS cameras (which provide the information of every single pixel in digitized form) a fast processing of the supplied data is ensured. To prepare the ImageBLITZ, a line segment of a predefined length is set up in the field of view, just where the triggering event is likely to take place. Then the amount of grey level alteration (and its direction from dark to bright or reverse) is set, as well as the minimum number of affected pixels.
At each triggering event the camera head now sends a frame (or a set of frames) to the host computer to be processed or archived for further use.
^. Archived from the original on 2007-12-15. Retrieved 2012-08-23.
External linksedit
April 13, 2024
image, trigger, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, september, . This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Image trigger news newspapers books scholar JSTOR September 2012 Learn how and when to remove this template message An image trigger initiates the capture of single or multiple frames of a digital camera by analysing the signals of its sensor For capturing and analysing of fast moving objects e g as in quality control of production lines modern high speed cameras are frequently used Typically the initiation of an image series starts as soon as the object is entirely visible in the field of the camera By using a so called image trigger this task can be done much faster and more accurately without the cost and effort of additional equipment as in standard methods for instance via cable release The on board ImageBLITZ image trigger uses the live picture of the camera itself as a flexible and accurate sensor with the result that the process synchronisation takes care of itself 1 By using CMOS cameras which provide the information of every single pixel in digitized form a fast processing of the supplied data is ensured To prepare the ImageBLITZ a line segment of a predefined length is set up in the field of view just where the triggering event is likely to take place Then the amount of grey level alteration and its direction from dark to bright or reverse is set as well as the minimum number of affected pixels At each triggering event the camera head now sends a frame or a set of frames to the host computer to be processed or archived for further use See also editBulb photography Shutter buttonReferences edit ImageBLITZ Archived from the original on 2007 12 15 Retrieved 2012 08 23 External links editImage Trigger Application Retrieved from https en wikipedia org w index php title Image trigger amp oldid 936952670, wikipedia, wiki, book, books, library,
