A method for detecting objects with high speed, for high contrast dynamically change BACKGROUND

摘要

1. A method for detecting objects with high speed on the high dynamically change the background, is to receive, formation, registration at the same time a reference to compare digital images of the object two identical video systems based on multi-element high-speed photodetectors with parallel axes of lenses, fixed relative to each other on a much smaller distance than the distance to the control zone boundaries, characterized in that the multi-element high speed photodetectors use linear multi-element high-speed photodetectors, such as photodiodes line composed of pixels, and as lenses use cylindrical lenses exhibit a difference of output signals from the photodiode arrays, in which determine the information on the entry of foreign object in the controlled area at the intersection of its granitsy.2 them. A method for detecting objects with high speed on a high background dynamically changeable according to claim 1, characterized by determining the absolute difference between the output signals from the photodiode arrays, the total for all the pixels on exceeding a predetermined level which determine the appearance of foreign object while crossing them controlled zone boundary. 3. A method for detecting objects with high speed on a high background dynamically changeable according to claim 1, characterized by determining the absolute difference between the output signals from the photodiode arrays for each of the pixels, determine the direction of emergence of a foreign object in the monitored area pixel photo