Patent ID: 8681239

Claim:
An image capturing device comprising: an imaging unit configured to capture moving pictures; an attribute information generation unit configured to generate attribute information indicating features of the moving pictures captured by said imaging unit; an evaluation unit configured to apply the attribute information generated by said attribute information generation unit to a predetermined evaluation criterion, so as to calculate an evaluation value of the moving pictures for each predetermined time width; a still picture extraction unit configured, when the evaluation value calculated by said evaluation unit exceeds an evaluation threshold value, to extract a still picture from the predetermined time width corresponding to the exceeding evaluation value among the moving pictures; and a threshold value change unit configured to change the evaluation threshold value based on at least one of person information and a composition change amount which are included in the attribute information, the person information being used for specifying a person captured in the moving pictures, and the composition change amount being an amount of change in image compositions between the moving pictures, wherein said threshold value change unit is configured to increment the evaluation threshold value at a predetermined increasing rate every time the still picture is extracted by said still picture extraction unit, while the composition change amount is kept equal to or smaller than a predetermined amount, wherein the evaluation criterion defines a correspondence relationship between the person information and the evaluation value, the evaluation value being associated with a case where the person is captured in the moving pictures, and said threshold value change unit is configured to change the predetermined increasing rate smaller as the evaluation value associated with the person information included in the attribute information is higher.