An image capturing apparatus comprising: a light emitting section that is adapted to emit light to a subject; a light receiving section that is adapted to receive light in a first wavelength region and light in a second wavelength region from the subject, the second wavelength region being different from the first wavelength region; a reflectance calculating section that is adapted to calculate a first reflectance of light in the first wavelength region from the subject and a second reflectance of light in the second wavelength region from the subject; and a depth identifying section that is adapted to calculate a depth, from a surface of the subject, of an object inside the subject that is included in an image resulting from the light received by the light receiving section, based on the first reflectance and the second reflectance, wherein said reflectance calculating section is adapted to calculate the first and second reflectance based on the light emitted by the light emitting section and the light received by the light receiving section; that the apparatus further comprises a depth storage section that is adapted to store information concerning a depth at which the object exists inside the subject, in association with a difference or ratio between the first reflectance and the second reflectance, wherein the depth identifying section is adapted to identify a depth stored in the depth storage section in association with the difference or ratio between the first reflectance and the second reflectance; and the light receiving section is adapted to receive light in the first wavelength region and light in the second wavelength region, which have different degrees of dependency on the reflectance of the subject according to the depth of the object from the surface of the subject, characterized in that the light emitting section is adapted to sequentially emit light in the first wavelength region and light in the second wavelength region, and the light receiving section is adapted to sequentially receive light in the first wavelength region and light in the second wavelength region, and that the image capturing apparatus further comprises: a movement identifying section that is adapted to identify movement of the subject, the movement identifying section determining which wavelength region is used to identify the movement of the subject in each image region based on a contrast of a captured image taken with the wavelength region, wherein the reflectance calculating section is adapted to calculate the first reflectance and the second reflectance from the light in the first wavelength region and the light in the second wavelength region, respectively, for which a positional shift caused by the movement of the subject is corrected using the movement identified by the movement identifying section based on the light in the wavelength region determined by the movement identifying section. a light emitting section that is adapted to emit light to a subject; a light receiving section that is adapted to receive light in a first wavelength region and light in a second wavelength region from the subject, the second wavelength region being different from the first wavelength region; a reflectance calculating section that is adapted to calculate a first reflectance of light in the first wavelength region from the subject and a second reflectance of light in the second wavelength region from the subject; and a depth identifying section that is adapted to calculate a depth, from a surface of the subject, of an object inside the subject that is included in an image resulting from the light received by the light receiving section, based on the first reflectance and the second reflectance, a movement identifying section that is adapted to identify movement of the subject, the movement identifying section determining which wavelength region is used to identify the movement of the subject in each image region based on a contrast of a captured image taken with the wavelength region, wherein the reflectance calculating section is adapted to calculate the first reflectance and the second reflectance from the light in the first wavelength region and the light in the second wavelength region, respectively, for which a positional shift caused by the movement of the subject is corrected using the movement identified by the movement identifying section based on the light in the wavelength region determined by the movement identifying section.