Exposure control method, system and equipment for inhibiting motion bright light source

Abstract

The invention provides an exposure control method, system and device for inhibiting a moving bright light source, and the method comprises the steps: obtaining the brightness of a target region in a display unit as the current brightness; judging whether the current brightness is within a preset brightness threshold interval or not; if the current brightness is greater than the upper limit value of the preset brightness threshold interval, recording the target area as overexposure, and suppressing exposure of the target area to reduce the current brightness to the target brightness; and if thecurrent brightness is smaller than the lower limit value of the preset brightness threshold interval, marking the target area as under exposure, and unlocking exposure of the target area to enable the current brightness to rise back to the target brightness. The method does not depend on the detection of the target main body, can quickly suppress exposure, and captures and identifies the target main body in a limited time. And when the target object moves and follows, the display image can be kept from flickering, and the stability of the display image is kept.

Description

technical field [0001] The present invention relates to the technical field of monitoring, in particular to a method, system and equipment for controlling the exposure of motion-suppressing bright light sources in the field of video monitoring. Background technique [0002] With the development of science and technology becoming more and more important in the application of actual scenes, the demand for effective image data information is becoming more and more urgent. As the entrance of image data, front-end video acquisition equipment needs to adapt to the data source subject to be collected as much as possible in terms of exposure strategy. In the field of intelligent surveillance applications, there are opposite differences in the exposure strategy between the brightness of the overall video static picture and the capture and identification of moving target subjects. In road application scenarios, it is hoped that when a moving vehicle passes by, the exposure can be quic...

AI Technical Summary

Problems solved by technology

However, this strategy has a low probability of detecting the target object in an over-dark or over-exposed scene. Even if the preset brightness information is referred to, if the adjustment speed is not timely, the detection target may have left the image screen, and the capture and recognition rate of the target subject cannot be improved.

Moreover, the existing exposure strategy still has the following two problems: first, it cannot quickly suppress the brightness required for capturing and identifying moving vehicles, and the motion smear caused by slow shutter; not stable

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