Solid-state imaging device, method for processing signal of solid-state imaging device, and imaging apparatus

A signal processing method for use in a solid-state imaging device including a color filter unit disposed on a pixel array unit including pixels two-dimensionally arranged in a matrix, the color filter unit having a color arrangement in which a color serving as a primary component of a luminance signal is arranged in a checkerboard pattern and a plurality of colors serving as color information components are arranged in the other area of the checkerboard pattern, the method comprising the step of:

• converting, on a substrate having the pixel array unit thereon, signals that are output from the pixels of the pixel array unit and that correspond to the color arrangement of the color filter unit into signals that correspond to a Bayer arrangement.

An imaging apparatus comprising:

• a solid-state imaging device including a color filter unit and a conversion processing unit, the color filter unit being disposed on a pixel array unit including pixels two-dimensionally arranged in a matrix, the color filter unit having a color arrangement in which a color serving as a primary component of a luminance signal is arranged in a checkerboard pattern and a plurality of colors serving as color information components are arranged in the other area of the checkerboard pattern, the conversion processing unit being disposed on a substrate having the pixel array unit thereon, the conversion processing unit converting signals that are output from the pixels of the pixel array unit and that correspond to the color arrangement of the color filter unit into signals that correspond to a Bayer arrangement and outputting the converted signals;
• and
• a signal processing unit configured to generate a luminance signal and a color difference signal using the signals that are output from the conversion processing unit and that correspond to a Bayer arrangement.

A solid-state imaging device comprising:

• a color filter unit disposed on a pixel array unit including pixels two-dimensionally arranged in a matrix, the color filter unit having a color arrangement in which filters of a first color serving as a primary component of a luminance signal are arranged in a checkerboard pattern, and filters of a second color serving as a primary component of the luminance signal for a series of four pixels form a group, and the groups are arranged so as to form a stripe pattern in one of a diagonal direction, a vertical direction, and a horizontal direction;
• and
• a signal processing unit configured to receive signals that are output from the pixels of the pixel array unit and that correspond to the color arrangement of the color filter unit and add a signal of a pixel of a filter of the second color adjacent to the pixel of a filter of the first color to a signal of the pixel of the filter of the first color.

A signal processing method for use in a solid-state imaging device including a color filter unit disposed on a pixel array unit including pixels two-dimensionally arranged in a matrix, the color filter unit having a color arrangement in which filters of a first color serving as a primary component of a luminance signal are arranged in a checkerboard pattern, and filters of a second color serving as a primary component of the luminance signal for a series of four pixels form a group, and the groups are arranged so as to form a stripe pattern in one of a diagonal direction, a vertical direction, and a horizontal direction, the method comprising the step of:

• receiving signals that are output from the pixels of the pixel array unit and that correspond to the color arrangement of the color filter unit and adding a signal of a pixel of a filter of the second color adjacent to the pixel of a filter of the first color to a signal of the pixel of the filter of the first color.

An imaging apparatus comprising:

• a solid-state imaging device including a color filter unit and a signal processing unit, the color filter unit being disposed on a pixel array unit including pixels two-dimensionally arranged in a matrix, the color filter unit having a color arrangement in which filters of a first color serving as a primary component of a luminance signal are arranged in a checkerboard pattern, and filters of a second color serving as a primary component of the luminance signal for a series of four pixels form a group, and the groups are arranged so as to form a stripe pattern in one of a diagonal direction, a vertical direction, and a horizontal direction, the signal processing unit receiving signals that are output from the pixels of the pixel array unit and that correspond to the color arrangement of the color filter unit and adding a signal of a pixel of a filter of the second color adjacent to the pixel of a filter of the first color to a signal of the pixel of the filter of the first color.