| 摘要 |
In the present invention, even if the fluctuation in the spectral characteristics of an image pickup element is large, a visible light signal and an infrared light signal are appropriately separated from an image signal comprising the visible light signal and the infrared light signal. A separation matrix generating unit generates a separation matrix for separating the visible light signal, which consists of visible light, from a mixed image signal which is an image signal containing visible light and invisible light. A separation matrix retaining unit retains the generated separation matrix. A separation unit separates the visible light signal from the mixed image signal on the basis of the retained separation matrix. If a detection unit has detected that the signal level of the separated visible light signal is lower than a prescribed threshold, the detection unit causes the separation matrix generating unit to newly generate the separation matrix thereby updating the same. |
