Fast zero recovery with alpha blending in gyroscopic image stabilization
US8872927B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2011 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Mar 24, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/6842
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for performing fast zero recovery with alpha blending with digital image stabilization implemented in a digital camera. The digital camera includes a gyroscope to measure motion of the digital camera and processes the signals from the gyroscope to track the total displacement of an image sensor over a series of frames of video. If the motion is a sustained motion in a substantially uniform direction, then the digital camera recognizes the motion as a panning-type motion and activates a fast-zero recovery with alpha blending operation to retrace the displacement of active pixel locations to the center of the image sensor. Alpha blending is performed to smooth the transition from a normal image stabilization operation to the fast-zero recovery with alpha blending operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.