The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 2021
Filed:
Aug. 30, 2017
Beijing Qiyi Century Science & Technology Co., Ltd., Beijing, CN;
BEIJING QIYI CENTURY SCIENCE & TECHNOLOGY CO., LTD., Beijing, CN;
Abstract
The present application provides a method and device for constructing a projection image. The method for constructing a projection image comprises: performing projection on an equirectangular panoramic image with a cylindrical surface equal-area projection model to obtain a cylindrical surface equal-area projection image; obtaining a two-dimensional coordinate of each of pixels in the cylindrical surface equal-area projection image; obtaining a two-dimensional coordinate in the equirectangular panoramic image corresponding to each of pixels in the cylindrical surface equal-area projection image; performing pixel interpolation on the cylindrical surface equal-area projection image based on color information of each of pixels in the equirectangular panoramic image and the obtained two-dimensional coordinate in the equirectangular panoramic image corresponding to each of pixels in the cylindrical surface equal-area projection image to generate a panoramic image subjected to the cylindrical surface equal-area projection transformation. The resolution and bit rate of the panoramic image or video can be reduced by the method of the present application.