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Interpolation filter for an inter prediction apparatus and method for video coding

An inter-frame prediction and filter technology, applied in the field of video coding, can solve the problem of non-translational motion model interpolation filtering needs to be improved, and achieve the effects of improving subjective quality, improving quality, and reducing memory bandwidth

Active Publication Date: 2020-05-26
HUAWEI TECH CO LTD
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Problems solved by technology

The current accuracy of interpolation filtering for non-translational motion models needs to be improved

Method used

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  • Interpolation filter for an inter prediction apparatus and method for video coding
  • Interpolation filter for an inter prediction apparatus and method for video coding
  • Interpolation filter for an inter prediction apparatus and method for video coding

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Embodiment Construction

[0038] The following description is described in conjunction with the accompanying drawings, which form a part hereof, and show by way of illustration specific aspects in which the invention may be practiced. It is to be understood that other aspects may be utilized and structural or logical changes may be made without departing from the scope of the present invention. Accordingly, the following detailed description is not to be taken as limiting, but the scope of the present invention is defined by the appended claims.

[0039] It can be understood that the content related to the described method is also applicable to the corresponding device or system for performing the method, and vice versa. For example, if a specific method step is described, a corresponding device may include means for performing the described method step, even if such means are not elaborated or illustrated in the figures. Furthermore, it should be understood that the features of the various exemplary ...

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Abstract

The invention relates to an apparatus (144) and method for inter prediction of a sample value of a current full-integer pixel of a plurality of pixels of a current block of a current frame of a videosignal. The apparatus (144) comprises a processing unit configured to: determine a motion vector of the current full-integer pixel on the basis of the current frame and a reference frame of the videosignal and / or on the basis of a motion compensation model; determine for the current full-integer pixel a corresponding sub-integer pixel in the reference frame on the basis of the motion vector of the current full-integer pixel; generate on the basis of a predefined set of filter support pixels in the current frame a set of corresponding filter support pixels in the reference frame, wherein the predefined set of filter support pixels in the current frame comprises one or more neighboring sub-integer pixels of the current full-integer pixel; determine a respective sample value of the corresponding sub-integer pixel of the current full-integer pixel and the corresponding filter support pixels in the reference frame; and determine the inter predicted sample value of the current pixel in thecurrent frame by applying a spatial high-pass filter to the sample value of the corresponding sub-integer pixel of the current full-integer pixel in the reference frame and to the sample values of thecorresponding filter support pixels in the reference frame. Moreover, the invention relates to an encoding apparatus (100) and a decoding apparatus comprising such an inter prediction apparatus (144).

Description

technical field [0001] The present invention relates generally to the field of video coding. More particularly, the present invention relates to an interpolation filter for an inter prediction device and method of video encoding, and an encoding device and a decoding device including such an inter prediction device. Background technique [0002] Digital video communication and storage applications are implemented by a range of digital devices such as digital cameras, wireless cellular phones, notebook computers, broadcast systems, video conferencing systems, and more. One of the most important and challenging tasks in these applications is video compression. Video compression is a complex task constrained by two conflicting parameters (compression efficiency and computational complexity). Video coding standards such as ITU-T H.264 / AVC, ITU-T H.265 / HEVC provide good trade-offs for these parameters. Therefore, almost all video compression applications must support video cod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/176H04N19/103H04N19/117H04N19/137H04N19/80H04N19/537H04N19/523H04N19/59
CPCH04N19/176H04N19/103H04N19/117H04N19/137H04N19/80H04N19/537H04N19/523H04N19/59H04N19/105H04N19/132H04N19/159H04N19/182H04N19/52H04N19/593
Inventor 马克西姆·博里索维奇·希切夫
Owner HUAWEI TECH CO LTD
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