Encoding / decoding device, encoding / decoding method, bitstream transmission device, and storage medium

By encoding and decoding the configuration information of sub-images in the video encoding and decoding devices, ensuring that they are within a consistent clipping window, the problems of low encoding efficiency, poor image quality, large processing volume, and slow speed in the prior art are solved, and more efficient video encoding and decoding is achieved.

CN121967688APending Publication Date: 2026-05-01PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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Patent Information

Application Number
CN202610381307.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2020-03-19
Filing Date
2021-03-18
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing video coding technologies suffer from low coding efficiency, poor image quality, large processing volume, large circuit scale, and slow processing speed when processing large amounts of digital video data. Furthermore, they lack optimization in aspects such as the selection of filters, blocks, sizes, motion vectors, and reference images.

Method used

By designing an encoding device and a decoding device, the configuration information of multiple sub-images is encoded and decoded respectively, ensuring that the pixels of each sub-image are within a consistent clipping window. The parameters representing the sub-image configuration are generated and saved through a bitstream sending device, thus achieving effective encoding and decoding.

Benefits of technology

It improves encoding efficiency, enhances image quality, reduces processing load and circuit size, increases processing speed, and optimizes the selection of filters, blocks, sizes, motion vectors, and reference images, achieving more efficient video encoding and decoding.

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Abstract

The invention relates to a coding and decoding device, a coding and decoding method, a bit stream transmission device and a storage medium. This encoding device is provided with: a circuit that, during operation, designs each of a plurality of sub-pictures included in a picture, encodes configuration information indicating the configuration of each of the plurality of sub-pictures included in the picture, and stores the encoded configuration information; the circuit encodes each of the plurality of sub-pictures, the circuit, in action, designs each of the plurality of sub-pictures such that at least one pixel contained in each sub-picture is contained in the same consistent cropping window in the picture, conditions for designing the plurality of sub-pictures include that an upper end of each of the plurality of sub-pictures is located above a lower end of the consistent clipping window.
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