Solid-state imaging device, image processing method, and camera module

An image processing method comprising:

• controlling driving of pixels for each horizontal line in which the pixels are arrayed in horizontal direction in a pixel array in which the plurality of pixels are arrayed in the horizontal direction and vertical direction, applying one of a first exposure time and a second exposure time shorter than the first exposure time as an exposure time of the pixels;
• performing high dynamic range synthesis of synthesizing a first image signal from a first pixel, which is the pixel to which the first exposure time is applied, and a second image signal from a second pixel which is the pixel to which the second exposure time is applied,
• wherein first horizontal lines which are the horizontal lines formed by the first pixel and second horizontal lines which are the horizontal lines formed by the second pixels form a periodic array in the vertical direction of the pixel array, and
• wherein the periodic array is formed in units of a combination of the first horizontal lines and the second horizontal lines of the number which is twice the number of first horizontal lines.

A camera module comprising:

• an imaging optical system that receives light from a subject and forms a subject image;
• and
• a solid-state imaging device that converts the light received by the imaging optical system into a signal charge to capture the subject image,
• wherein the solid-state imaging device includes
• a pixel array in which a plurality of pixels are arrayed in horizontal and vertical directions,
• a control unit that controls driving of the pixels for each horizontal line, in which the pixels are arrayed in the horizontal direction in the pixel array, applying one of a first exposure time and a second exposure time shorter than the first exposure time as an exposure time of the pixels, and
• a high dynamic range synthesizing unit that synthesizes a first image signal from a first pixel which is the pixel to which the first exposure time is applied and a second image signal from a second pixel which is the pixel to which the second exposure time is applied, and
• wherein first horizontal lines which are the horizontal lines formed by the first pixels and second horizontal lines which are the horizontal lines formed by the second pixels form a periodic array in units of a combination of the first horizontal lines and the second horizontal lines of the number which is twice the number of first horizontal lines in the vertical direction of the pixel array.