Research Of Illumination Technologies In Water Image Acquisition System

In water body image collecting system,because of glare of water surface and other factors,how to optimize water body illumination and get good illumination intensity and uniformity through the reasonable illumination of water bodies so that water image acquisition system can obtain more close to the water images under sun exposure in the case of insufficient illumination intensity have become the key to the analysis and treatment of the water body image.Firstly,this paper studies illumination level and measurement standard of illumination system.The research mainly includes illumination field,illuminance uniformity and national illuminance standard of various places.This paper also studies the form and evaluation of the glare of water surface and puts forward the arrangement and irradiation mode of illumination device.Secondly,it descripts the simulated annealing algorithm,particle swarm optimization algorithm and simulated annealingparticle swarm algorithm.It proposes to calculate the location parameter and illumination angle of illumination device using the method of calculating illuminance uniformity by simulated annealing-particle swarm algorithm.In the same time,it describes the flow of the algorithm in detail.Thirdly,it sets up the illumination model and calculates the position parameters by iterative calculation of the algorithm.Through the simulating illumination model by Tracepro software,it verifies illumination device position parameters obtained by the algorithm theoretically after analyzing the illuminance mean and illuminance uniformity of illumination devices with different heights and different illumination angles.Finally,by choosing the right lighting source and accessories,the hardware and software of the illumination system in the water image acquisition system are designed and constructed.I use the hardware to do some experiments on the illumination of devices with different heights and different angles.The actual illuminance mean and illuminance uniformity are analyzed,and the quality of water image under different illuminance uniformity is compared.The experimental results show that in this paper,the location layout parameters and illumination angle of the illumination device calculating by the designing of simulated annealing-particle swarm algorithm can suppress water glare and make the image quality of the water body more high,which can guarantee the efficient operation of the water image collection system.