Hard light polarization detection device capable of automatically adjusting exposure value and detection method thereof

The invention belongs to the field of optical detection, and discloses a hard light polarization detection device capable of automatically adjusting an exposure value and a detection method thereof. The imaging system (1) is used for collecting images; the image processing system (2) is used for processing the acquired image; the total gradient prediction system (3) is used for calculating and predicting the total gradient amount of the image; and the second exposure parameter generation system (4) is used for generating a second exposure value and comparing the second exposure value with the threshold value so as to determine whether the second exposure value is transmitted to the imaging system to adjust the gain or the aperture size or the shutter speed of the camera. According to the invention, red, green, blue, infrared and ultraviolet optical filters are utilized to carry out multi-channel and full-spectrum detection on a target so as to solve the problem of single detection wave band. 本发明属于光学探测领域，公开了一种