A real-time detection method for point targets in ultraviolet-visible video

Abstract

The invention discloses a real-time point target detection method in an ultraviolet visible light video, which comprises steps: (1) a target position information table is built; (2) search parameters are initialized; (3) an image is read and filtering is carried out; (4) binarization processing is carried out; (5) whether the information table is empty is judged, and if yes, an ultraviolet target is searched in the whole image, and the information table is updated; (6) the center position of a candidate target point in the information table serves as a search center, searching is carried out in a certain range, the information table is updated when a target exists, and the seventh step is carried out, and the candidate target is cancelled in the information table without a target, and the third step is carried out; (7) if the target point in the information table appears for more times than a preset threshold n, an alarm is given, and fusion with the frame image of the visible light is carried out; and (8) steps from (3) to (7) are repeated until all image frames in the video are processed. The false alarm probability can be effectively reduced, the target detection probability is improved, and the target can be accurately positioned and analyzed.

Description

technical field [0001] The invention belongs to the field of video information processing, and relates to a real-time detection and fusion method of a midpoint target in an ultraviolet-visible light video, which can be used for detecting and recognizing targets in the ultraviolet-visible light video. Background technique [0002] When the traditional infrared search and rescue instrument is used for airborne large-scale search and rescue, the infrared target is basically submerged in the noise background, and the signal-to-noise ratio is low, which brings great difficulties to the search and rescue work. Since the ground background has no clutter in the ultraviolet band and there are few sources of interference targets, the signal-to-noise ratio of the ultraviolet signal received by the detector is high. Therefore, the way of using ultraviolet search and rescue emerges at the historic moment. [0003] In ultraviolet detection, the target is point-shaped, without obvious sha...

AI Technical Summary

Problems solved by technology

In addition, ultraviolet images basically do not carry background information, so it is difficult to locate the target

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