Research on visual comfort of stadium light environment based on virtual reality:A case study of basketball court
The parameters specified in the lighting design standard for sports venues(JGJ153-2016)are mainly aimed at the television broadcasting needs of the competition venue,and the visual comfort of on-site personnel is only constrained by the glare index GR.The contrast between light and dark is also an important factor affecting visual comfort,but the contrast between light and dark in the lighting environment of sports venues is currently unclear.Therefore,this article proposes to take the impact of light and dark contrast on the visual comfort of athletes and spectators as the research object.Taking basketball mode as an example,virtual reality technology is used to explore the changes in visual comfort of people in different light environments and observation positions by changing the light and dark contrast between the competition venue and the audience area.Based on the exploration results,a lighting inverse design method based on NSGA-Ⅱ algorithm is proposed to create a lighting environment for sports venues before and after considering visual comfort,and visual comfort evaluation experiments are completed.The results show that when the vertical illumination ratio between the audience seat and the main camera direction of the competition venue is within the range of 0.3-0.5,the audience and athletes can obtain a relatively comfortable visual experience.When the ratio is 0.4,the visual experience is the most comfortable.After adding this condition to the lighting design,about 80％of the participants'visual comfort experience is significantly improved,which verifies the rationality of adding the comfort conditions in sports venue lighting design.The results of this study have certain reference significance for the lighting design of sports venues.
lighting of sports venuesvisual comfortvirtual reality(VR)NSGA-Ⅱlighting inverse design
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