Digital image stabilization method

Details Digital image stabilization method Digital image stabilization method

2011-06-07

2011-06-07

Hannett, James M (Department: 2622)

Television

Camera, system and detail

Camera image stabilization

Reexamination Certificate

active

07956898

ABSTRACT:
A digital image stabilization method that integrates a digital stabilization device and a digital video encoder is disclosed. The digital stabilization device comprises a determining module for determining background regions, a comparison module for calculating motion vectors, and an adjustment module for adjusting jerky image motion in frames. When there are frame jiggles, the motion vector between an I frame and a P frame is used for motion estimation to get a first motion vector and also define a background region of the P frame. Next, a second motion vector of a B frame is calculated according to the background region to adjust jerky motion of the P frame and the B frame for stabilization. The next P frame then uses the background region of the preceding P frame as its background region.

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Homer H. Chen, et al., Integration of Digital Stabilizer with Video Codec for Digital Video Cameras, IEEE Transactions on Circuits and Systems for Video Technology, vol. 17, No. 7, Jul. 2007, pp. 801-813.

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