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Title:
DECODING METHOD AND APPARATUS, ENCODING METHOD AND APPARATUS, AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/052369
Kind Code:
A1
Abstract:
The present application provides a decoding method and apparatus, an encoding method and apparatus, and a device. The decoding method comprises: determining prediction mode flag bit information of a current block, the prediction mode flag bit information comprising a flag bit value of at least one candidate prediction mode in N candidate prediction modes, when the flag bit value is a first value, the flag bit value being used for indicating to enable the candidate prediction mode, and when the flag bit value is a second value, the flag bit value being used for indicating not to enable the candidate prediction mode; for the flag bit value of each candidate prediction mode, if the current block does not meet a decoding condition for the flag bit value of the candidate prediction mode, the flag bit value is a derived flag bit value of the candidate prediction mode; determining, according to the prediction mode flag bit information, a target prediction mode enabled for the current block, the target prediction mode being one of the N candidate prediction modes; and decoding the current block according to the target prediction mode. The present application can improve the encoding performance.

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Inventors:
CHEN FANGDONG (CN)
Application Number:
PCT/CN2020/115634
Publication Date:
March 25, 2021
Filing Date:
September 16, 2020
Export Citation:
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Assignee:
HANGZHOU HIKVISION DIGITAL TEC (CN)
International Classes:
H04N19/103
Foreign References:
CN110933408A2020-03-27
CN110234008A2019-09-13
CN109587479A2019-04-05
CN107925774A2018-04-17
US20120320984A12012-12-20
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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