Based The Emccd Of Color Night Vision Technology And Automatic Gain Control

In recent years, with the night vision imaging detection developing rapidly, both at home and abroad have invested a large amount of manpower and material resources to research the night-vision device. Color night vision imaging technology was one of the key technologies which the current focused on. In low-light-level conditions, EMCCD could get high-quality images. In order to explore the new imaging methods to coloring the objectives of the dark, paper first analyzed the basic characteristics of low-light-level images, and the theory of bi-spectrum true color vision under the low light level, then based on the TC247SPD EMCCD of TI, tried the multi-spectral color fusion arithmetic of RGB: we used three filters including red,green and blue to catch three original images of RGB. According to the principles of color and the different reflecting characteristics in the dim light, we got a true color image which was suitable for the human eyes through fusing the RGB images. The experimental results proved that the effect is better than the traditional pseudo-color fusion.At the same time, this thesis analyzed and studied the theory of the AG control arithmetic, and did a comparison about the effect of the various parameters on the quality of EMCCD imaging. Then, the thesis explored an AG control arithmetic based on "a fixed gray level" and verified the feasibility of the arithmetic. The experiment proved that this arithmetic could achieve the desired effects. At last, the thesis predicted some possible improvements on the low-light-level color night vision about EMCCD.