Title:
FISHEYE IMAGE COMPRESSION METHOD, FISHEYE VIDEO STREAM COMPRESSION METHOD AND PANORAMIC VIDEO GENERATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/280266
Kind Code:
A1
Abstract:
The present application relates to a fisheye image compression method, a fisheye video stream compression method and a panoramic video generation method. The fisheye image compression method comprises: acquiring positioning information of a render region of a decoding end; determining a fisheye render region in a corresponding fisheye image according to the positioning information, wherein the region in the fisheye image apart from the fisheye render region is a fisheye non-render region; and compressing the fisheye image to obtain a compressed image, wherein the compression ratio of the fisheye render region in the compressed image is less than the compression ratio of the fisheye non-render region therein, and/or the fisheye render region is not compressed. By means of the method, the aim of compression can be achieved, thereby saving on an image transmission bandwidth; moreover, the compression ratio of a compressed fisheye render region is relatively small, or a fisheye render region is subjected to lossless compression, such that a finally rendered picture cannot be excessively compressed, thereby avoiding a reduction in the quality of the picture, that is, the definition of a picture in a render region can be ensured.
Inventors:
WANG GUO (CN)
JIANG WENJIE (CN)
JIANG WENJIE (CN)
Application Number:
PCT/CN2022/104346
Publication Date:
January 12, 2023
Filing Date:
July 07, 2022
Export Citation:
Assignee:
ARASHI VISION INC (CN)
International Classes:
H04N21/44
Foreign References:
| CN109792490A | 2019-05-21 | |||
| CN107065197A | 2017-08-18 | |||
| CN108665521A | 2018-10-16 | |||
| CN107820012A | 2018-03-20 | |||
| CN111757090A | 2020-10-09 | |||
| CN108391133A | 2018-08-10 | |||
| US20180061084A1 | 2018-03-01 |
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