An imaging device comprising: an imaging unit that includes an imaging optical system including a first optical system and a second optical system that are provided in different areas and have different imaging characteristics, and a directivity sensor including a plurality of pixels that include photoelectric conversion elements arranged in a two-dimensional shape and pupil-dividing light fluxes that are incident via the first optical system and the second optical system , respectively, and selectively receiving the light fluxes using the plurality of pixels; an image reading unit that acquires an image signal of a first image obtained via the first optical system and an image signal of a second image obtained via the second optical system from the directivity sensor ; a movement vector detection unit that detects a first movement vector (Vec1, Vec2) that is a movement vector of a subject in the first image and a second movement vector (Vt 1 , Vt 2 ) that is a movement vector of the subject in the second image; a probability calculation unit that calculates a first probability indicating a probability of the first movement vector being a movement vector due to a light flux passing through the first optical system and a second probability indicating a probability of the second movement vector being a movement vector due to a light flux passing through the second optical system; and a movement vector extraction unit that extracts one of a first true movement vector that is a movement vector due to the light flux passing through the first optical system in the first image and a second true movement vector that is a movement vector due to the light flux passing through the second optical system in the second image, as a true movement vector, on the basis of the first true movement vector, the second true movement vector, and a comparison between the first probability and the second probability. an imaging unit that includes an imaging optical system including a first optical system and a second optical system that are provided in different areas and have different imaging characteristics, and a directivity sensor including a plurality of pixels that include photoelectric conversion elements arranged in a two-dimensional shape and pupil-dividing light fluxes that are incident via the first optical system and the second optical system , respectively, and selectively receiving the light fluxes using the plurality of pixels; an image reading unit that acquires an image signal of a first image obtained via the first optical system and an image signal of a second image obtained via the second optical system from the directivity sensor ; a movement vector detection unit that detects a first movement vector (Vec1, Vec2) that is a movement vector of a subject in the first image and a second movement vector (Vt 1 , Vt 2 ) that is a movement vector of the subject in the second image; a probability calculation unit that calculates a first probability indicating a probability of the first movement vector being a movement vector due to a light flux passing through the first optical system and a second probability indicating a probability of the second movement vector being a movement vector due to a light flux passing through the second optical system; and a movement vector extraction unit that extracts one of a first true movement vector that is a movement vector due to the light flux passing through the first optical system in the first image and a second true movement vector that is a movement vector due to the light flux passing through the second optical system in the second image, as a true movement vector, on the basis of the first true movement vector, the second true movement vector, and a comparison between the first probability and the second probability. <EOS>