Huawei Technologies Co., Limited

University of Science and Technology of China

Fangdong Chen

Haitao Yang

Li Li

Sixin Lin

Jing Liu

Houqiang Li

Feng Wu

Zhuoyi Lv

The present disclosure provides a reference image encoding method, including: encoding sequence, to obtain a reconstructed image of a first and second reference images; determining whether a local area in the second reference image is suitable for updating first reference image; determining whether the first reference image is updated; when the first reference image is not updated, and it is determined the second reference image is suitable for updating the first reference image, replacing a pixel value of a corresponding area or a related area in the first reference image with a pixel value of the local area in the second reference image; and compiling, into the bitstream.

Reference image encoding method, reference image decoding method, reference image encoding device, and reference image decoding device

A reference image encoding method is provided, including: encoding sequence, to obtain a reconstructed image of a first and second reference images; determining whether a local area in the second reference image is suitable for updating first reference image; determining whether the first reference image is updated; when the first reference image is not updated, and it is determined the second reference image is suitable for updating the first reference image, replacing a pixel value of a corresponding area or a related area in the first reference image with a pixel value of the local area in the second reference image; and compiling, into the bitstream.

A video encoding and decoding method and apparatus are provided. The video encoding method includes: obtaining a first statistical characteristic of previous K frames of images of a video sequence; determining a first background frame; determining, according to the first statistical characteristic, a QP used for encoding the first background frame; encoding the first background frame according to the QP, to obtain a first background long-term reference frame; and encoding the (K+1)frame of image of the video sequence to the (K+L)frame of image of the video sequence according to the first background long-term reference frame. When encoding is performed on the (K+1)frame of image of the video sequence to the (K+L)frame of image of the video sequence, the used QP for encoding the background long-term reference frame is determined according to the first statistical characteristic related to video content of the previous K frames of images.

Video encoding and decoding method and apparatus

Growing community of inventors

Hefei, China

Fangdong Chen