VidCalc is a calculator to determine the image size on a monitor of an object observed by a video camera.
A video camera is often part of a surveillance system. In the
design
phase the proper lens must be seclected, so that an object of a certain
size will be shown large enough on the monitor. The VidCalc calculator
shown below calculates the image size of an object of given height or
width for a given distance from the camera.
The image size is calculated as a percentage of the CCD chip dimension.
The same percentage normally applies for the relative size of the
object on the full screen or in the display window. It enables a
judgement whether the object's image is shown large enough.
VidCalc(J) shown below is made available on this web site for educational and scientific purposes and under exclusion of any form of warranty, what so ever. The author reserves the full copyright. Any form of commercial use requires a license by the author. If you accept these conditions, you may use VidCalc(J) now. The calculator below is VidCalc (J), the Javascript version. Please make sure that Javascript is enabled in your browser. Insert your data and make your chip selection in the upper five entry fields, then press 'Compute'.
Ingo Harre, Bremen, Germany, Content last modified on 2009/04/25