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Encoding method and device and decoding method and device for hierarchical video

A technology of video coding and base layer video, applied in the field of video coding and decoding, can solve the problems of inefficiency and limited improvement effect, and achieve the effect of improving coding efficiency and quality

Active Publication Date: 2021-04-23
BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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Problems solved by technology

However, the existing technology has not yet applied deep learning to the improvement of the efficiency of scalable video coding. At present, it is still stuck in manual statistical data rules to artificially design algorithms to improve the quality of the inner reference video frame. The improvement effect is limited and inefficient.

Method used

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  • Encoding method and device and decoding method and device for hierarchical video
  • Encoding method and device and decoding method and device for hierarchical video
  • Encoding method and device and decoding method and device for hierarchical video

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Embodiment Construction

[0065] In order to enable ordinary persons in the art to better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings.

[0066] It should be noted that the terms "first" and "second" in the specification and claims of the present disclosure and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein can be practiced in sequences other than those illustrated or described herein. The implementations described in the following examples do not represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspect...

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Abstract

The invention provides a layered video coding method and device and a layered video decoding method and device, and the layered video coding method comprises the steps: obtaining a current basic layer video frame, a previously reconstructed basic layer video frame and a previously reconstructed enhancement layer video frame of a to-be-coded video; generating a quality-enhanced inner-layer video frame based on the current base-layer video frame, the previously reconstructed base-layer video frame and the previously reconstructed enhancement-layer video frame using a convolutional neural network; and performing motion prediction for the current enhancement layer video frame by using the quality-enhanced inner layer video frame as an inter-layer reference video frame.

Description

technical field [0001] The present disclosure relates to the technical field of video coding and decoding, and in particular, to a coding method and device for layered video, a decoding method and device, electronic equipment, and a computer-readable storage medium. Background technique [0002] The High Efficiency Video Coding Standard (HEVC / H.265) is an effective means to reduce video redundant data during video transmission, which can greatly save network bandwidth, reduce transmission pressure, and adapt to wider transmission conditions. Scalable Video Coding (SHVC), as an extension technology of HEVC, is an efficient and robust video coding technology adopted to adapt to the heterogeneity, fluctuation and congestion of IP networks. This technology regards a basic layer and several enhanced layers as a multi-layer video system, and generates several layers of high and low ordered compressed code streams for a single video sequence. SHVC can be implemented by using a sin...

Claims

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Application Information

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IPC IPC(8): H04N19/30
CPCH04N19/30
Inventor 何刚于冰戴宇荣闻兴
Owner BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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