Adaptive loop filtering method and device

[0030] According to an embodiment of the present invention, a method embodiment of an adaptive loop filtering method is provided. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions , and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0031] The method embodiment provided in Embodiment 1 of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. figure 1 A hardware structural block diagram of a computer terminal (or mobile device) for implementing the adaptive loop filtering method is shown. Such as figure 1 As shown, the computer terminal 10 (or mobile device 10) may include one or more (shown by 102a, 102b, ..., 102n in the figure) processor 102 (the processor 102 may inc...

[0102] According to an embodiment of the present invention, a device for implementing the above adaptive loop filtering method is also provided, such as Figure 4 As shown, the device includes: a first processing unit 401 and a second processing unit 402 .

[0103] Specifically, the first processing unit 401 is configured to process Y through first sample adaptive offset and joint cross-component adaptive loop filtering to obtain a target joint chroma optimization signal, where Y is the original luminance component;

[0104] The second processing unit 402 is configured to perform compensation processing on the target joint chroma optimization signal to the first Cb component to obtain the target Cb component, wherein the first Cb component is formed by Cb through the second sample adaptive offset and the second self-adaptive offset. Adapted to linear filtering processing, Cb is the original blue chroma;

[0105] To sum up, in the adaptive loop filtering device according to Em...

[0120] Embodiments of the present invention may provide a computer terminal, and the computer terminal may be any computer terminal device in a group of computer terminals. Optionally, in this embodiment, the foregoing computer terminal may also be replaced with a terminal device such as a mobile terminal.

[0121] Optionally, in this embodiment, the foregoing computer terminal may be located in at least one network device among multiple network devices of the computer network.

[0122] In this embodiment, the above-mentioned computer terminal can execute the program code of the following steps in the adaptive loop filtering method of the application program: subject Y to the processing of the first sample adaptive offset and joint cross-component adaptive loop filtering, The target joint chroma optimization signal is obtained, wherein the Y is the original luminance component; the target joint chroma optimization signal is compensated for the first Cb component to obtain the ...