Invention Grant
- Patent Title: Image processing device and image processing method
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Application No.: US16979159Application Date: 2018-12-04
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Publication No.: US11245919B2Publication Date: 2022-02-08
- Inventor: Junichi Matsumoto
- Applicant: SONY CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SONY CORPORATION
- Current Assignee: SONY CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Chip Law Group
- Priority: JPJP2018-049200 20180316
- International Application: PCT/JP2018/044524 WO 20181204
- International Announcement: WO2019/176189 WO 20190919
- Main IPC: H04N19/52
- IPC: H04N19/52 ; H04N19/176 ; H04N19/30 ; H04N19/61

Abstract:
A motion vector correction unit including a correction method determination unit 40 and an inter-prediction unit 42 performs scaling processing on a motion vector of, for example, a peripheral block of a current predictive block in a fisheye image shot using a fisheye lens, on the basis of fisheye information, for example, a projection method of the fisheye lens and a radius of the fisheye image. The scaling processing performs scaling by transforming the motion vector of the peripheral block to a motion vector of an image having no fisheye distortion, and transforms the motion vector after the scaling to the motion vector in the fisheye image. By reducing a difference between a motion vector of the current predictive block and a predictive motion vector by performing the scaling processing, encoding efficiency of the fisheye image can be improved.
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