Invention Grant
- Patent Title: Image blur correction device, method for controlling same, and imaging apparatus
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Application No.: US16600779Application Date: 2019-10-14
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Publication No.: US11190688B2Publication Date: 2021-11-30
- Inventor: Ryuichiro Yasuda
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Cowan, Liebowitz & Latman, P.C.
- Priority: JPJP2018-194836 20181016
- Main IPC: H04N5/232
- IPC: H04N5/232

Abstract:
An image blur correction device includes a motion detection unit and detects a motion of panning, tilting, and camera shake. A motion determination unit determines a motion of an imaging apparatus based on an output of the motion detection unit. A high-pass filter (HPF) removes a low-frequency component from the output of the motion detection unit and a low-pass filter (LPF) removes a high-frequency component from an output of the HPF. A swing-back time period detection unit detects a period of time during which swing-back occurs based on the output of the LPF and the output of the motion determination unit. A gain control unit controls a gain to be multiplied by the output of the LPF based on the output of the detection unit and the output of the motion determination unit. A subtraction processing unit subtracts an output of the gain control unit from the output of the HPF.
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