Signal processing circuit of solid-state imaging element, signal processing method of solid-state imaging element, and electronic apparatus

摘要

A signal processing circuit of a solid-state imaging element which processes a signal of the solid-state imaging element having a first pixel group and a second pixel group in which a charge accumulation time or photosensitivity is different by α times from that of the first pixel group, includes a calculation unit that multiplies a signal value of a pixel of interest in the first pixel group by α times, a weighting unit that performs weighting with respect to the signal value of the pixel of interest based on a signal value of a pixel associated with the pixel of interest, and a synthesis unit that synthesizes the signal value which has been multiplied by α times in the calculation unit and on which the weighting has been performed in the weighting unit and a signal value of a pixel of the second pixel group.

主权项

1. A signal processing circuit of a solid-state imaging element, the signal processing circuit comprising:
a calculation unit that multiplies a signal value of a pixel of interest in a first pixel group of the solid-state imaging element by a times; a weighting unit that performs weighting with respect to the signal value of the pixel of interest based on a signal value of a pixel associated with the pixel of interest, wherein the weighing unit performs the weighting by a weighing value within a range of ±(α/2); and a synthesis unit that synthesizes the signal value which has been multiplied by a times in the calculation unit and on which the weighting has been performed in the weighting unit and a signal value of a pixel of a second pixel group of the solid-state imaging element, wherein a charge accumulation time or photosensitivity of the second pixel group is different by α times from the charge accumulation time or photosensitivity of the first pixel group.