Image coding, decoding method and device

Abstract

The invention discloses image encoding and decoding methods and devices. The encoding method comprises the following steps of carrying out region segmentation on an original image according to the attention level; determining whether to carry out reduction processing on the corresponding region according to the attention level of each region, determining reduction parameters of reduction processing for the regions which need reduction processing, and carrying out reduction processing on the corresponding region according to the determined reduction parameters; and after reduction processing is carried out on the corresponding region, carrying out regional integration on all regions to obtain an integrated image, and encoding the integrated image to obtain a media file. Through reducing the data volume of some regions in the image, the data volume after compression is reduced, so that the compression rate is minimized and the overall compression ratio is improved under the conditions that the video quality of the important regions is guaranteed and the satisfaction of a looker is kept.

Description

technical field [0001] The present invention relates to encoding and decoding technology, especially to an image encoding and decoding method and device. Background technique [0002] 360-degree panoramic video, panoramic pictures, etc., because they usually come from the imaging results of more than two cameras, and when they are rendered to the screen and displayed to the viewer, only a part of a specific window is intercepted, so the resolution of the rendering display effect Usually lower than the original video resolution. In order to achieve a higher resolution of the actual display effect, a higher original resolution is required, and 4K video and pictures are often required to meet the demand. [0003] Therefore, 360-degree video and pictures have high resolution, high bit rate, and huge data volume. On the one hand, they will take up a lot of network resources during transmission, and the display effect is likely to be poor due to network instability; on the other ...

AI Technical Summary

Problems solved by technology

[0002] 360-degree panoramic video, panoramic pictures, etc., because they usually come from the imaging results of more than two cameras, and when they are rendered to the screen and displayed to the viewer, only a part of a specific window is intercepted, so the resolution of the rendering display effect Usually lower than the original video resolution

[0003] Therefore, 360-degree video and pictures have high resolution, high bit rate, and huge data volume. On the one hand, they will take up a lot of network resources during transmission, and the display effect is likely to be poor due to network instability; on the other hand, use Large storage capacity, only relatively short videos can be stored on common storage media

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