GLARE EVALUATION OF OUTDOOR TENNIS COURT FLOODLIGHTING USING HIGH DYNAMIC RANGE PHOTOGRAPHY

摘要

This paper presents the glare rating measurement for an outdoor tennis court in The Hong Kong Polytechnic University using the high dynamic range (HDR) photography. This technology, which uses a consumer grade digital camera to obtain the luminance across the field at pixel level, allows precise and quick on-site measurement of parameters required by the CIE basic glare evaluation formula. Glare rating (GR) values which quantify the glare sensation due to floodlighting were obtained both by HDR photography and conventional measurement method using illuminance meter. The measurement results and data acquiring procedures of both methods are compared and discussed. Besides, subjective glare sensations were collected from 50 players via questionnaires.