公开(公告)号：US10412393B2

公开(公告)日：2019-09-10

申请号：US15694440

申请日：2017-09-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bing Zeng ,  Chen Chen ,  Yin Zhao ,  Haitao Yang ,  Shuyuan Zhu

IPC: H04N19/117 ,  H04N19/159 ,  H04N19/122 ,  H04N19/61 ,  H04N19/124 ,  H04N19/105 ,  H04N19/182 ,  H04N19/176 ,  H04N19/593 ,  H04N19/132 ,  H04N19/136 ,  H04N19/18 ,  H04N19/82 ,  H04N19/59

Abstract: An intra-frame encoding method, an intra-frame decoding method, an encoder, and a decoder, where the intra-frame encoding method includes obtaining reference pixel values of a current picture block obtaining a predicted value of a first-type pixel in the current picture block according to the reference pixel values of the current picture block using an intra-frame prediction algorithm, obtaining residual values of the first-type pixel, obtaining transform coefficients according to the residual values of the first-type pixel, quantizing the transform coefficients, reconstructing the first-type pixel according to the quantized transform coefficients and the predicted value of the first-type pixel, and obtaining a reconstructed value of the second-type pixel according to the reconstructed value of the first-type pixel using an interpolation method. Hence, flexible encoding can be implemented, and encoding efficiency can be improved.

公开(公告)号：US20180007367A1

公开(公告)日：2018-01-04

申请号：US15694440

申请日：2017-09-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bing Zeng ,  Chen Chen ,  Yin Zhao ,  Haitao Yang ,  Shuyuan Zhu

IPC: H04N19/159 ,  H04N19/124 ,  H04N19/122 ,  H04N19/182 ,  H04N19/105

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/122 ,  H04N19/124 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/59 ,  H04N19/593 ,  H04N19/61 ,  H04N19/82

Abstract: An intra-frame encoding method, an intra-frame decoding method, an encoder, and a decoder, where the intra-frame encoding method includes obtaining reference pixel values of a current picture block obtaining a predicted value of a first-type pixel in the current picture block according to the reference pixel values of the current picture block using an intra-frame prediction algorithm, obtaining residual values of the first-type pixel, obtaining transform coefficients according to the residual values of the first-type pixel, quantizing the transform coefficients, reconstructing the first-type pixel according to the quantized transform coefficients and the predicted value of the first-type pixel, and obtaining a reconstructed value of the second-type pixel according to the reconstructed value of the first-type pixel using an interpolation method. Hence, flexible encoding can be implemented, and encoding efficiency can be improved.

公开(公告)号：US10555007B2

公开(公告)日：2020-02-04

申请号：US15837594

申请日：2017-12-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bing Zeng ,  Zexiang Miao ,  Chen Chen ,  Shuyuan Zhu ,  Yin Zhao ,  Haitao Yang

IPC: H04N19/86 ,  H04N19/117 ,  H04N19/137 ,  H04N19/176

Abstract: A deblocking filtering method and a deblocking filter are provided. The method includes: determining, according to a current pixel value of a to-be-filtered pixel in a picture block and pixel values of pixels in a first neighbouring partition of the to-be-filtered pixel, a first filtering offset value of the to-be-filtered pixel; performing prediction on the pixel value of the to-be-filtered pixel according to pixel values of pixels in a second neighbouring partition of the to-be-filtered pixel to obtain a prediction value of filtered value of the to-be-filtered pixel; and determining an actual filtered value of the to-be-filtered pixel according to the current pixel value, the first filtering offset value, and the prediction value of filtered value.