SOLID-STATE IMAGING DEVICE AND CAMERA MODULE

摘要

According to one embodiment, a solid-state imaging device includes a pixel array and a high dynamic range (HDR) synthesizing circuit 19. A pixel is configured as a small pixel group. The HDR synthesizing circuit 19 includes a valid pixel selecting unit 34, a sensitivity ratio correcting unit 35, and a calculation processing unit 36. The valid pixel selecting unit 34 selects one or more small pixels validating a use of a signal value in the HDR synthesis as a valid pixel from among the small pixel group. The sensitivity ratio correcting unit 35 executes sensitivity ratio correction on the signal value of each small pixel. The calculation processing unit 36 uses the signal value of the valid pixel among the signal values of the small pixels from the sensitivity ratio correcting unit 35 for a calculation for the HDR synthesis.

主权项

1. A solid-state imaging device, comprising:
a pixel array that includes a plurality of pixels arranged in a horizontal direction and a vertical direction and generates signal charges according to a quantity of light incident to each pixel; and a high dynamic range synthesizing circuit that executes a high dynamic range synthesis using an image signal from the pixel array, wherein the pixel is configured as a small pixel group including a plurality of small pixels each of which is capable of reading the signal charge, the small pixel group includes two or more small pixels that differ from each other in optical sensitivity, and the high dynamic range synthesizing circuit includes a valid pixel selecting unit that selects one or more small pixels validating a use of a signal value in the high dynamic range synthesis as a valid pixel from among the small pixel group, a sensitivity ratio correcting unit that executes sensitivity ratio correction according to a ratio of the optical sensitivity between the small pixels on the signal value of each small pixel, and a calculation processing unit that executes a calculation for the high dynamic range synthesis using the signal value of the valid pixel among the signal values of the small pixels from the sensitivity ratio correcting unit.