Video file playback system capable of previewing image, method thereof, and computer program product
US10382717B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Nov 9, 2016 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Dec 3, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/36
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video file playback system capable of previewing an image, a method thereof, and a computer program product can sequentially compare change amounts between chronological two of frame images, select the frame images, of which the change amounts exceed a preset value, in at least one time interval, and select a frame image, which has a maximum change amount, in the frame images in each time interval as a preview image. By displaying a preview image corresponding to each time interval, a user can quickly browse key images of each time interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.