Patent ID: 8743240

Claim:
An imaging apparatus comprising: a frame rate controller for setting a frame rate of an image acquired by an imaging device to a first frame rate or to a second frame rate, with the first frame rate being different from the second frame rate; a luminance difference calculator for calculating a first luminance difference between two images of a first group of images acquired by the imaging device at the first frame rate and a second luminance difference between two images of a second group of images acquired by the imaging device at the second frame rate; and a flicker detector for comparing the first luminance difference and the second luminance difference with a first threshold and a second threshold, respectively, and determining whether a flicker of a first frequency or a flicker of a second frequency is generated, with the first frequency being different from the second frequency, wherein the first frame rate and the second frame rate are synchronized with the first frequency and the second frequency, respectively.