Camera exposure method and device

Abstract

The invention discloses a camera exposure method and device. The target image is collected by an image sensor, and the collected target image is transmitted to a central control processing module. The central control processing module drives and controls the lighting drive control module, and simultaneously generates a delay timing; lighting The drive control module generates a signal to drive the active lighting module after receiving the control input; when the delay timing is completed, the light signal sent by the active lighting module is reflected by the object to the image sensor, and the image sensor starts to expose. When the exposure time of the image sensor is equal to that of the active lighting module When the time is turned on, the image sensor completes the exposure, and the central control processing module reads the image information in the image sensor. The invention can make the supplementary light turn on time as long as the exposure time of the image sensor, can realize synchronous exposure, can not only avoid light pollution and save energy, but also avoid driver's misoperation caused by the high brightness of the supplementary light.

Description

technical field [0001] The invention relates to a camera, in particular to a camera exposure method and device. Background technique [0002] At present, there are many types and styles of cameras used in traffic, environmental safety monitoring, terrain exploration, spectral analysis, fog penetration monitoring, long-distance monitoring and other fields, and the specific capture of each camera is different. The existing high-power LED supplementary light fixtures on the market for supplementary light have a fixed frequency or output light time, and cannot be accurately synchronized with various cameras when shooting, so that when the camera is shooting, it cannot , the camera cannot be supplemented with light when shooting, or the supplementary light cannot be accurately synchronized with the shooting of the camera, so that complete synchronization of exposure cannot be achieved, which affects the shooting effect of the camera, especially in traffic. The light is in a brig...

AI Technical Summary

Problems solved by technology

The existing high-power LED supplementary light fixtures on the market for supplementary light have a fixed frequency or output light time, and cannot be accurately synchronized with various cameras when shooting, so that when the camera is shooting, it cannot , the camera cannot be supplemented with light when shooting, or the supplementary light cannot be accurately synchronized with the shooting of the camera, so that complete synchronization of exposure cannot be achieved, which affects the shooting effect of the camera, especially in traffic. The light is in a bright state for a long time; and the power of the supplementary light is high, which leads to light pollution and energy waste, and the high brightness of the supplementary light causes the driver to make mistakes; in addition, when shooting in foggy days, due to the lack of Defog function, resulting in unclear shooting effect

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