An imaging apparatus is provided which includes an imaging unit including a first photoelectrical conversion device and a second photoelectrical conversion device, wherein the first photoelectrical conversion device generates first image data by photoelectrically converting a visible light component transmitted from a subject, and wherein the second photoelectrical conversion device generates second image data by photoelectrically converting an infrared light component transmitted from the subject, a filter removing the visible light component but allowing the infrared light component to pass through, a subject image position identification unit for identifying, in the first image data, a predetermined subject image and a position of the predetermined subject image, an infrared light intensity detection unit for detecting an infrared light intensity transmitted in the second image data, and a living body detection unit for detecting a living body based on the position of the predetermined subject image and the infrared light intensity.