Camera exposure method and apparatus

Abstract

The invention discloses a camera exposure method and apparatus. An image sensor collects a target image and transmits the collected target image to a central control processing module, and the central control processing module drives and controls a lighting drive control module and generates delay timing; the lighting drive control module receives a control input and then generates a signal to drive an active lighting module; when delay timing is completed, an optical signal emitted by the active lighting module is reflected by a shot object to the image sensor, and the image sensor starts exposing; and when the exposure time of the image sensor is equal to starting time of the active lighting module, the image sensor completes exposure and the central control processing module reads image information in the image sensor. Therefore, on-state keeping time of a light supplementing lamp is identical with the exposure time of the image sensor and synchronous exposure can be realized, so that light pollution can be avoided and energy conservation can be realized; and a phenomenon of misoperation of a driver due to high brightness of the light supplementing lamp can be avoided.

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, remote monitoring and other fields. The specific capture of each camera is different. The existing high-power LED supplementary light fixtures for supplementary light on the market have fixed frequency or output light time, which cannot be accurately synchronized with various cameras when shooting, so that when the camera is shooting, under the condition of insufficient light , The camera cannot be filled with light during shooting, or the fill light cannot be accurately synchronized with the camera’s shooting, so that the fully synchronized exposure cannot be achieved, which affects the camera’s shooting effect, especially in traffic. The light is in a high-bright stat...

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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