Image acquisition method and device

• Main Authors: HAO YINGJUN, SONG LIFAN
• Format: Patent
• Language: Chinese; English
• Published: 10.09.2021
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

The invention relates to an image acquisition method. The method comprises the following steps: sending an exposure starting instruction to an image sensor, and controlling a light supplementing lamp to be turned on; sending an exposure ending instruction to the image sensor according to the current exposure duration, and controlling the light supplementing lamp to be turned off; and collecting the photoelectric conversion information collected by the image sensor to obtain the image information of the current frame. By using the method, the light supplementing lamp can supplement light only when the image sensor performs exposure, and is turned off in a non-exposure stage, so that the power consumption of the light supplementing lamp is reduced, and the average current of the whole equipment is reduced. 本申请涉及一种图像采集方法。所述方法包括：向图像传感器发送曝光开始指令，并控制所述补光灯开启；根据当前曝光时长向所述图像传感器发送曝光结束指令，并控制所述补光灯关闭；收集所述图像传感器采集的光电转换信息，得到当前帧的图像信息。采用本方法能够使补光灯仅在图像传感器曝光时进行补光，在非曝光阶段关闭，从而减少了补光灯的功耗，并且降低了设备整体的平均电流。