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A method, device, terminal and storage medium for intra-frame prediction

An intra-frame prediction and unified technology, applied in the field of video processing, can solve the problems that the spatial redundancy of 360-degree video cannot be completely eliminated, the 360-degree video cannot obtain better coding performance, and the attributes and characteristics of the spherical domain are not considered. The effect of final encoding performance, eliminating spatial redundancy, and improving accuracy

Active Publication Date: 2022-04-29
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0006] The embodiment of the present application provides an intra-frame prediction method, device, terminal and storage medium to solve the problem that the existing intra-frame prediction algorithm in video coding does not consider the specific attributes and characteristics of the spherical domain, and cannot completely eliminate the problem in 360-degree video Spatial redundancy prevents 360-degree video from achieving better encoding performance

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  • A method, device, terminal and storage medium for intra-frame prediction
  • A method, device, terminal and storage medium for intra-frame prediction
  • A method, device, terminal and storage medium for intra-frame prediction

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Embodiment Construction

[0026] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0027] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude one or more other features. , whole, step, operation, element, component and / or the presence or addition of a collection thereof.

[0028] It shou...

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Abstract

This application is applicable to the technical field of video processing, and provides an intra prediction method, device, terminal and storage medium, wherein the method includes: determining the neighboring pixels of the image block; A reference pixel point corresponding to each pixel point in the image block, each pixel point in the image block and its corresponding reference pixel point are located on the same preset arc; for each pixel point in the image block, and determining the corresponding pixel value of the reference pixel as the predicted value of the pixel. This solution enables the execution of intra-frame prediction to be closer to the distribution of pixels in the 2D plane after 360-degree video projection, eliminates spatial redundancy in 360-degree video, improves the accuracy of intra-frame prediction, and improves the final quality of 360-degree video. Encoding performance.

Description

technical field [0001] The present application belongs to the technical field of video processing, and in particular relates to an intra prediction method, device, terminal and storage medium. Background technique [0002] During the development of multimedia technology, since virtual reality (Virtual Reality, VR) and augmented reality (Augmented Reality, AR) technologies can provide consumers with an immersive experience, they have been gradually applied in many fields. [0003] Among them, 360-degree video is one of the important forms of AR and VR. In addition to providing a wider viewing angle, 360-degree video also provides higher resolution and frame rate, and a better visual experience. [0004] Video usually needs to be encoded to achieve data storage or transmission. In the prior art, in order to adapt the 360-degree video to the current block-based video coding standard, a projection transformation from a 3D sphere to a 2D plane is required before coding. [000...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/11H04N19/147H04N19/176
CPCH04N19/11H04N19/176H04N19/147
Inventor 张云朱林卫李娜皮金勇
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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