In a classic artificial vision system, cameras send full images of the scene that may be processed in real time, even though any change has occurred.

In a classic artificial vision system, cameras send full images of the scene that may be processed in real time, even though any change has occurred. In order to keep track of the fastest movements, it is necessary to use a high velocity camera with a great processing capacity, which can make it impossible to apply it in built-in systems. Selective vision lead by changes (SCD vision) is based on a visual sensor that only sends pixels that have changed in the image, which allows increasing the speed in the movement detection. The design of a portable hardware system is shown in the article. It is based on a SCD sensor that is also developed collectively and it is capable of measuring high velocity distances. An equivalent classic system would need a camera that worked with more than 500,000 images per second in order to get the same temporal resolution.

Authors: Jose A. Boluda, Fernando Pardo and Francisco Vegara

More information: http://www.mdpi.com/1424-8220/16/11/1875