Reasoning about Action for Behavioral Animation of Intelligent Virtual Agents.
2008
An artificial illumination control system for controlling the energization of an electronic flash device during a photographic exposure interval in a camera automatically operates in a full flash mode whenever the ambient light level is too low for a proper daylight exposure and the camera-to-subject distance does not exceed a maximum distance suitable for a full flash exposure. Moreover, it automatically operates in a fill flash exposure whenever the ambient light level is bright enough that areas of the subject may be substantially shadowed and the camera-to-subject distance does not exceed a maximum distance small enough to ensure that the fill flash output will lighten the shadowed areas. The maximum distance for a fill flash exposure is always less than the maximum distance for a full flash exposure.
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