IMAGE COMPONENT PREDICTION METHOD AND DEVICE, AND COMPUTER STORAGE MEDIUM

WIPO Patent Application WO/2020/258052

A1

An image component prediction method and device as well as a computer storage medium. The method comprises: acquiring N adjacent reference pixels corresponding to a to-be-predicted image component of an encoding block in a video image (S801), the N adjacent reference pixels being reference pixels adjacent to the encoding block and N being a preset integer value; calculating the mean value of the N adjacent reference pixels so as to obtain a first mean value point (S802); grouping a second reference pixel set by means of the first mean value point so as to obtain a first reference pixel subset and a second reference pixel subset (S803); determining two fitting points according to the first reference pixel subset and the second reference pixel subset (S804); determining model parameters on the basis of two fitting points, and obtaining a prediction model corresponding to the to-be-predicted image component according to the model parameters; using the prediction model for prediction processing of the to-be-predicted image component so as to obtain a prediction value corresponding to the to-be-predicted image component (S805).

HUO JUNYAN (CN)
MA YANZHUO (CN)
WAN SHUAI (CN)
YANG FUZHENG (CN)
LI XINWEI (CN)

PCT/CN2019/092858

December 30, 2020

June 25, 2019

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GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)

H04N19/154

CN105306944A	2016-02-03
CN107580222A	2018-01-12
CN103596004A	2014-02-19
CN103379321A	2013-10-30
US20130188689A1	2013-07-25

CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)

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