Patent ID: 8243165
Filing Date: 2012-08-14
Classification: H04N

Abstract:
1. A video camera, comprising: an imager which repeatedly outputs an object scene image produced on an imaging surface having M (M: an integer of at least two) pixels lined up in a predetermined direction; an exposer which repeatedly executes an exposing operation for exposing said imaging surface for each N (N: an integer of at least one and less than M) pixels lined up in said predetermined direction; a detector which repeatedly detects a plurality of luminance values respectively corresponding to a plurality of flicker evaluation areas allocated to said imaging surface in a manner to be located at positions different from one another in said predetermined direction, based on the object scene image outputted from said imager; and a determiner which determines presence or absence of a flicker based on the plurality of luminance values repeatedly detected by said detector, wherein said determiner includes: a selector which selects each of said plurality of luminance values along said predetermined direction; a first measurer which measures the number of times with which a luminance selected this time by said selector exceeds a luminance selected last time by said selector; and a second measurer which measures the number of times with which the luminance selected this time by said selector is equal to or less than the luminance selected last time by said selector.