| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an imaging device extending dynamic range and reducing noise, or improving an SN ratio. <P>SOLUTION: Prior to actual shooting, a subject is pre-imaged with different amounts of received light of an imaging element to obtain a plurality of preliminary video signals (S12). Then, a dynamic range (S14), and a noise amount or SN ratio (S15) at the time when the plurality of preliminary video signals are synthesized are calculated, and based upon the dynamic range and noise amount or SN ratio, differences in amount of received light of the imaging element between a plurality of actual video signals during the actual shooting are calculated (S16). The actual shooting is carried out based upon the calculated differences in amount of received light to obtain a plurality of actual video signals differing in amount of received light, and the actual video signals are synthesized to obtain a composite image. <P>COPYRIGHT: (C)2010,JPO&INPIT |
