Patent ID: 9036031
Filing Date: 2015-05-19
Classification: G06F,G06T,H04N

Abstract:
1. A method of processing video data, comprising: identifying, from transforms of motion vectors between video frames captured by a camera, a compensation transform representing camera movement to be compensated; and adaptively filtering the compensation transform to prevent excessive over-excursion of a compensation window modeled from an output video frame and superimposed over a captured video frame, based on normalized time-integrated excursions of the compensation window, wherein the compensation window is rotated, shifted, or scaled with respect to the captured video frame, wherein the adaptively filtering includes a scalar combination of: a highly frequency-selective high-order linear time-invariant recursive filter performing strong compensation (SC) filtering of the compensation transform; and a lower frequency-selective high-order or lower-order linear time-invariant recursive filter performing weak compensation (WC) filtering of the compensation transform.