| http://www.w3.org/ns/prov#value | - The image sensing device 125 assumed in this technique continuously photographs at a predetermined period, i.e., 1/30 sec, like a video camera using a CCD. That is, this technique does not consider use conditions for photographing a still image, and particularly photographing conditions under which the exposure time changes over a wide range of several hundredth sec to several ten sec in accordanc
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