Invention Grant
- Patent Title: Image decoding device
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Application No.: US17019453Application Date: 2020-09-14
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Publication No.: US11627337B2Publication Date: 2023-04-11
- Inventor: Tomoyuki Yamamoto , Tomohiro Ikai , Yukinobu Yasugi , Takeshi Tsukuba
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Keating & Bennett, LLP
- Priority: JPJP2012-005630 20120113
- Main IPC: H04N19/587
- IPC: H04N19/587 ; H04N19/176 ; H04N19/14 ; H04N19/70 ; H04N19/11 ; H04N19/186 ; H04N19/117 ; H04N19/82
Abstract:
Memory required during decoding is reduced.
A video image decoding device (1) is equipped with main direction deriving means (1453A) that references a prediction mode definition DEFPM(1), and from a prediction mode number, derives a main direction of a prediction direction corresponding to a prediction mode, and a gradient deriver (1453B) that references a gradient definition table DEFANG(1), and derives a gradient of the prediction direction.
A video image decoding device (1) is equipped with main direction deriving means (1453A) that references a prediction mode definition DEFPM(1), and from a prediction mode number, derives a main direction of a prediction direction corresponding to a prediction mode, and a gradient deriver (1453B) that references a gradient definition table DEFANG(1), and derives a gradient of the prediction direction.
Information query
