| 摘要 |
<P>PROBLEM TO BE SOLVED: To secure a necessary dynamic range while making a flicker inconspicuous in changing a reference voltage in signal processing for offset removal. <P>SOLUTION: An imaging apparatus comprises: a shake detection unit for detecting shaking of the imaging apparatus; an amplifying unit for amplifying a difference between an output of the shake detection unit and a reference voltage; an offset calculation unit for calculating an offset component based on an output of the amplifying unit; a changing unit capable of changing the reference voltage so as to remove the offset component calculated by the offset calculation unit; a change determination unit for determining whether to change the reference voltage by the changing unit; a fluctuation calculation unit for calculating an amount of output fluctuations in the amplifying unit generated by an operation of the changing unit; a correction unit for correcting the output of the amplifying unit with an output of the fluctuation calculation unit; an imaging lens whose focal length is variable; a focal length detection unit for detecting the focal length of the imaging lens; and a determination method changing unit for changing a determination method of the change determination unit according to an output of the focal length detection unit. <P>COPYRIGHT: (C)2012,JPO&INPIT |
