Video correction method and device to generate stabilized video
US11070730B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Apr 17, 2019 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Jun 11, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20132
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is a video correction method comprising: extracting a common feature point from a number of video frames corresponding to a correction window size; extracting a trace of the feature point from the video frames; calculating an average value of the trace in the video frames; extracting a stabilized trace from a circular queue circular queue buffer using the trace and the average value; and applying a repositioning operation and a perspective warping operation to the video frames based on the stabilized trace to generate a stabilized video.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.