Automatic shooting control method and device and automatic shooting camera

Abstract

The invention discloses an automatic shooting control method and device and an automatic shooting camera, which are applied to a scene in which the automatic shooting camera supplied with power by an alternating current power supply performs shooting of the position of a traffic signal lamp to realize monitoring. The scheme mainly comprises the following steps: determining exposure duration according to current environment brightness; determining a corresponding alternating current power supply phase during shooting with the exposure duration as a starting phase according to the determined exposure duration and a reference standard brightness value needing to be reached by the preset traffic signal lamp in an image obtained by shooting; and controlling to start automatic shooting operation at a moment corresponding to the starting phase. Thus, excessive exposure or insufficient exposure caused by the change of environmental light can be avoided. Meanwhile, the traffic signal lamp can be captured in a time period when the current of the traffic signal lamp is large, so that the image obtained by shooting can reflect the practical brightness of the traffic signal lamp truly, and the monitoring accuracy and validity are improved.

Description

technical field [0001] The invention relates to the technical field of monitoring, in particular to an automatic photographing control method, device and automatic photographing camera. Background technique [0002] In the field of intelligent transportation, road monitoring cameras are more and more widely used. Road surveillance cameras are usually installed at urban road intersections to take pictures of passing vehicles to collect evidence for violations such as speeding or running red lights. In the process of obtaining evidence for violations, it is often necessary to know the state of the traffic light when the vehicle violates the regulations, as evidence of the violation. [0003] However, in actual use, the colors of traffic lights in pictures and videos tend to be dark or overexposed, resulting in inconsistencies between the color of traffic lights in pictures and the actual color seen by human eyes, thus avoiding unnecessary disputes and even Some violations ma...

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide an automatic photographing control method, device, and automatic photographing camera to solve the problem in the prior art that the brightness of the signal lamp in the picture obtained by capturing the signal lamp deviates from the actual brightness

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