System and method for producing a still image representation of a motion video
US6665342B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1999 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Jul 2, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A still image from a digital video sequence by a computer system executing a strobe process. After an initialization step, the strobe process interatively selects two of the still frames in a sampled order. An attribute differencing step is performed that determines the difference of the attribute of the selected frames using a frame to frame comparison (attribute difference) and determines if the attribute difference from one frame to the other frame exceeds an attribute sensitivity. The attribute difference is stored along with the motion statistics of the attribute difference and if the attribute difference meets certain conditions, a relevant motion is determined. If a relevant motion is determined, a segmentation mask at one or more mask locations corresponding to the frame locations is updated. A strobe photo is also updated with the relevant motion at one or more photo locations corresponding to the mask and frame locations so that a history of relevant motions is recorded on the strobe photo.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.