Video encoding device, preprocessor, and video encoding method

The video encoding device and method optimize preprocessing and encoding by integrating a picture reference structure, enhancing encoding efficiency and video signal quality through neural network preprocessing and encoding.

JP7880757B2Active Publication Date: 2026-06-26NIPPON HOSO KYOKAI
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
NIPPON HOSO KYOKAI
Filing Date
2022-07-06
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing video encoding methods using neural networks do not effectively utilize the picture reference structure during preprocessing, leading to a potential deterioration in encoding efficiency after decoding.

Method used

A video encoding device and method that utilize a first neural network to perform preprocessing on multiple frames using a picture reference structure, optimizing the pre-processing unit and video encoding unit through a loss function to improve encoding efficiency by integrating the picture reference structure during both training and inference phases.

Benefits of technology

Enhances encoding efficiency by improving the quality of decoded video signals and maintaining encoding efficiency by utilizing the picture reference structure before encoding, thereby outperforming methods that do not use such structures.

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Patent Text Reader

Abstract

To provide a video encoding device, a pre-processing device, and a video encoding method that improves encoding efficiency.SOLUTION: A video encoding device 100 includes a pre-processing unit 110 that performs pre-processing by a first neural network on video signals of a plurality of frames including an input video frame by using a first picture reference structure, and outputs a pre-processed video signal. The video encoding device 100 also includes a video encoding unit 120 that encodes the pre-processed video signal using the first picture reference structure.SELECTED DRAWING: Figure 1
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