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Title:
IMAGE COMPONENT PREDICTION METHOD AND DEVICE, AND COMPUTER STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2020/258016
Kind Code:
A1
Abstract:
An image component prediction method and device, and a computer storage medium. The method comprises: acquiring a first reference pixel set corresponding to an image component to be predicted of a coding block in a video image (S501); when the number effective pixel points in the first reference pixel set is less than a preset number, taking a preset component value as a predicted value corresponding to the image component to be predicted (S502); when the number of effective pixels in the first reference pixel set is greater than or equal to the preset number, screening the first reference pixel set to obtain a second reference pixel set (S503); when the number of effective pixel points in the second reference pixel set is less than the preset number, taking the preset component value as the predicted value corresponding to the image component to be predicted (S504); and when the number of effective pixel points in the second reference pixel set is equal to the preset number, determining a model parameter by means of the second reference pixel set, and according to the model parameter, obtaining a prediction model corresponding to the image component to be predicted, wherein, the prediction model is used to implement prediction processing of the image component to be predicted, so as to obtain the predicted value corresponding to the image component to be predicted (S505).

Inventors:
HUO JUNYAN (CN)
MA YANZHUO (CN)
WAN SHUAI (CN)
YANG FUZHENG (CN)
LI XINWEI (CN)
RAN QIHONG (CN)
Application Number:
PCT/CN2019/092711
Publication Date:
December 30, 2020
Filing Date:
June 25, 2019
Export Citation:
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Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H04N19/124
Foreign References:
US20190068969A12019-02-28
CN109905715A2019-06-18
US20180376151A12018-12-27
US20190149838A12019-05-16
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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