Patent ID: 8350922
Filing Date: 2013-01-08
Classification: H04N

Abstract:
1. Method to create a video sequence of a plurality of resultant images from images originating from a rolling shutter acquisition sensor, said method comprising the steps of: acquiring a plurality of images, each image being acquired at a known instant in time for a known possibly varying acquisition duration, all images being of width W and height H when expressed in pixel units, selecting a given image, described hereafter as the current image, with corresponding acquisition start time t decomposing the current and the reference images into blocks and calculating for each block of the current image, of given coordinates (x computing for each block of the said reference image the corresponding block acquisition time t(x computing for each block of the said current image the corresponding block acquisition time t(x selecting a time t* , hereafter reconstruction time and corresponding to the resultant image without rolling shutter effects in the output sequence, recomposing the resultant image, being part of the said video sequence at said reconstruction time t* and corrected from the rolling shutter effect, from the current image by moving each block of the current image in a three dimensional space defined by the image spatial coordinates plus time, the direction of the displacement being given by the line joining the three dimensional position of the block (x