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Self-adaptive filtering method and device, electronic equipment and computer readable medium

An adaptive filtering, computer technology, applied in electrical components, digital video signal modification, image communication, etc., can solve problems such as classification and calculation data dependence, and achieve the effect of solving data dependence problems

Inactive Publication Date: 2019-04-19
BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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Problems solved by technology

[0004] In order to overcome the problems existing in related technologies, the present application discloses an adaptive filtering method, device, electronic equipment, and computer-readable medium. In the adaptive filtering stage, virtual pixel samples are used for classification calculation to solve the problems in classification calculation. data dependency problem

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  • Self-adaptive filtering method and device, electronic equipment and computer readable medium
  • Self-adaptive filtering method and device, electronic equipment and computer readable medium

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[0055]Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0056] figure 2 Shown is a schematic diagram of a video coding system incorporating in-loop adaptive filtering processing.

[0057] The input picture is encoded by intra prediction 110 or inter prediction (i.e., motion estimation / motion compensation) 112. For inter prediction, inter prediction 112 provides prediction data based on video data from other single pictures or pictures. A swit...

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Abstract

The application is about a self-adaptive filtering method and device, electronic equipment and a computer readable storage medium. The self-adaptive filtering method comprises the following steps: receiving reconstructed video data related to an image; dividing the image into multiple blocks based on the reconstructed video data; computing measurement information for each block in multiple blocks;determining the category of each block according to the measurement information of each block; when computing the measurement information of each block, if needing to use at least one specific pixelexcept the blocks, replacing at least one specific pixel with a virtual pixel sample, wherein the virtual pixel sample is a pixel value filled according to a set rule at a corresponding location except the block. Through the method disclosed by the application, the image related to the reconstructed video data is divided into multiple blocks, and the measurement information of each block is computed; when needing to use the pixel except the blocks, the corresponding virtual pixel sample is adopted, the data dependency problem between the blocks is solved, and the block processing can be performed in parallel.

Description

technical field [0001] The present application belongs to the field of video image processing, in particular to a loop filtering processing method, device, electronic equipment and computer readable medium. Background technique [0002] In video coding technology, loop filtering is one of the important technologies. This technology filters the reconstructed video data by encoding the filter coefficients to reduce the compression distortion in the image. Before HEVC Test Model 7 (HEVC TestModel 7, HM-7), a loop filtering technique, called Adaptive Loop Filtering (ALF), was included in the test model. To optimize performance, ALF uses Wiener filtering techniques to derive filter coefficients. The filter coefficients are encoded in an Adaptation Parameter Set (APS). [0003] According to High Efficiency Video Coding (HEVC), a frame of image is divided into multiple non-overlapping Largest Coding Units (Largest Coding Units, LCUs), also known as Coding Tree Units (Coding Tree...

Claims

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Application Information

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IPC IPC(8): H04N19/107H04N19/117H04N19/13H04N19/176H04N19/186H04N19/96
CPCH04N19/107H04N19/117H04N19/13H04N19/176H04N19/186H04N19/96
Inventor 陈宇聪闻兴郑云飞陈敏王晓楠蔡砚刚黄跃于冰
Owner BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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