Patent ID: 6487323
Filing Date: 2002-11-26
Classification: G06K,G06T,H04N

Abstract:
A method for generating a large static image, such as a sprite or a mosaic, from a video sequence including successive video objects VOs, said method comprising, in view of the accretion of said static image, the steps of:(A) estimating motion parameters related to the current video object V0(n) of the sequence, with respect to the previously generated static image; (B) warping said current video object V0(n), on the basis of said estimated motion parameters; (C) blending the warped video object WV0(n) thus obtained with said previously generated static image; characterized in that: (1) said method also comprises (nâˆ’1) further accretion steps applied to the same video sequence considered in the reverse order, each additional accretion step itself including a warping sub-step, based on each successive video object considered in said reverse order and on the corresponding estimated motion parameters, and a blending sub-step, provided between the warped video object thus considered and the static image generated at the end of the previous accretion step.