Image capturing device, image capturing method, coded infrared cut filter, and coded particular color cut filter

An image capturing device comprising:

• color separation unit which separates into a plurality of lights having different bands of wavelength,
• a photo sensor which is provided corresponding to each of the separated plurality of lights, and which converts the a plurality of colors into data representing image signals,
• a coded infrared cut filter including an infrared cut unit which cuts a near infrared light and an infrared transmissive unit which passes the near infrared light, and
• image processing unit,
• wherein
• the coded infrared cut filter is provided corresponding to at least one of the separated plurality of lights,
• the image processing unit acquires color information and near infrared information of a pixel based on an image signal related to a light which passes the infrared cut unit and an image signal related to a light which passes the infrared transmissive unit.

An image capturing method in which

• an image capturing device comprising:
• a color filter which separates an incident light into a plurality of colors;
• a photo sensor which converts the plurality of colors which the color filter has separated into data representing image signals;
• and
• a coded infrared cut filter which is provided in front of the color filter in the light traveling direction or between the color filter and the photo sensor, and which includes an infrared cut unit which cuts a near infrared light and an infrared transmissive unit which passes the near infrared light
• acquires near infrared information of a pixel based on
• an image signal related to a light which passes the infrared transmissive unit and
• an image signal related to a light corresponding to a color of a light which passes the infrared cut unit and which passes the infrared transmissive unit.

An image capturing device comprising:

• a color filter which separates an incident light into a plurality of colors;
• a photo sensor which converts the plurality of colors which the color filter has separated into data representing image signals;
• a coded particular color cut filter including:
• a particular color cut unit which is provided in front of the color filter in the light traveling direction or between the color filter and the photo sensor, which cuts a visible light region including a band of wavelength related to a particular color, and which passes a near infrared light;
• and a particular color transmissive unit which passes a light of the band of wavelength;
• and
• image processing unit which acquires plural-color information and near infrared information of a pixel based on a plurality of image signals related to lights which pass the particular color transmissive unit of a pixel and adjacent pixels and an image signal related to a light which passes the particular color cut unit.

A coded infrared cut filter

• comprising:
• an infrared cut unit which cuts a near infrared light;
• and an infrared transmissive unit which passes the near infrared light,
• corresponding to a color filter of an arrangement type in which a plural-color 2×2 pixels arrangement is a minimum unit,
• a site to which the plurality of minimum unit arrangements in the number of N are adjacent being a basic unit, wherein
• in the basic unit,
• the infrared transmissive units are included in the number of N or more and
• a pixel position corresponding to the infrared transmissive unit in one minimum unit arrangement and a pixel position corresponding to the infrared transmissive unit in another minimum unit arrangement are different from each other by one or more.