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:
Sep. 15, 2020
Filed:
Sep. 11, 2017
Allwinner Technology Co., Ltd., Zhuhai, Guangdong, CN;
ALLWINNER TECHNOLOGY CO., LTD., Zhuhai, CN;
Abstract
A real-time virtual reality (VR) acceleration method, includes: obtaining an input image (); partitioning an output image buffer into M rows and N columns of rectangular grid blocks (); calculating, according to an algorithm integrating anti-distortion, anti-dispersion, and asynchronous time warping (ATW), vertex coordinates of input image grid blocks corresponding to the output image buffer grid blocks (); calculating two-dimensional mapping coefficients of each pair of grid blocks in the output image buffer and the input image (); calculating, according to the two-dimensional mapping coefficients, coordinates of an output image pixel corresponding to an input image pixel (); selecting at least four pixels adjacent to the coordinates of the input image pixel, to calculate the output image pixel value (); and outputting an image after anti-distortion, anti-dispersion, and ATW (). VR experience effect of reducing GPU load, reducing bandwidth consumption, decreasing delay, and no dizziness is achieved.
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