Method for self-adapting to image brightness and focal length of laser assisted imaging

The invention discloses a method for self-adapting to image brightness and a focal length of laser assisted imaging. The method comprises the following steps: when the focal length of a camera is adjusted, performing real-time automatic detection on mean brightness of images output by the camera, if the image brightness cannot meet the application requirements, automatically adjusting the divergence angle and/or trigger current of the laser so as to realize the adaptive adjustment of the output energy of the laser and the focal length adjustment of the camera and ensure the optimized match of the laser irradiation energy and the brightness of images output by the camera, and thus video images with optimal quality are acquired. 本发明公开了种激光助视成像图像亮度与焦距自适应的方法，当摄像机进行焦距调整时，对摄像机输出的图像均值亮度进行实时自动检测，若图像亮度不能满足应用要求时，自动调整激光器的发散角和/或触发电流，使得激光器的输出能量与摄像机的焦距调整实现自适应调整，确保激光照射能量与摄像机输出的图像亮度达到优化匹配，从而得到最优质量的视频图像。