Patent · US Active

Efficient parallel optical flow algorithm and GPU implementation

US11030721B2 · kind B2 · utility

1Cited by

1References

20Claims

0Family size

Assignee

SNAP INC. · US

Inventors

Shah Tanmay Anilkumar · Los Angeles, US
Samuel Edward Hare · Los Angeles, US
Guohui Wang · Los Angeles, US

Key dates

Filing date	Apr 23, 2019
Grant date	Jun 8, 2021
Priority date	—
Expiry date	Aug 6, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/20224
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Systems and methods are provided for initiating transfer of image data corresponding to at least one predetermined level of an image pyramid comprising higher resolution to a graphic processing unit (GPU) of the computing device, calculating, by the central processing unit (CPU) of the computing device, optical flow of at least one predetermined coarse level of the image pyramid, transferring, by the CPU of the computing device, the calculated optical flow of the at least one predetermined coarse level of the image pyramid to the GPU, calculating, by the GPU of the computing device, the optical flow of the at least one predetermined level of the image pyramid comprising higher resolution, and outputting, by the GPU of the computing device, the optical flow of the image data.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.