Patent Document ID: 5566251
Application ID: 08456020
Patent Status: 1

Claim One:
1. In a sequence of successive 1-dimensional video image frames of a scene defined by its pictorial content, wherein each of said successive video image frames of said sequence is composed of a set of digital pixels, and wherein said scene may or may not include respective first subsets of pixels in at least some of said successive video image frames of said sequence that define a first pattern that may move in its relative location and change in its orientation in each of said successive video image flames of said sequence; the improvement in apparatus for replacing said respective first subsets of pixels defining said first pattern in video image frames of said sequence which include said first pattern with respective second sets of pixels defining a second pattern wherein none of said pictorial content of said scene is specified whereby said scene may be composed of any type of pictorial content rather than any part of said scene being unique; wherein said first pattern is an uncoded first pattern and said second pattern is an uncoded second pattern, and wherein said improved apparatus comprises: first means responsive to the respective sets of pixels defining the video images manifested by said successive frames of said sequence that employs dynamic pattern recognition for detecting the relative location of said uncoded first pattern in those video image frames that do include said first pattern and for estimating the pose of said detected uncoded first pattern in accordance with those pixels defining said respective first subsets of pixels of said successive video image frames of said sequence, said first means comprising means responsive to said sequence of successive 1-dimensional video image frames derived from a camera view of at least one object, said one object defining said uncoded first pattern, and employing affine precise alignment to provide perspective transformation for estimating the pose of said detected uncoded first pattern with respect to said camera's view in each said sequence of successive 1-dimensional video image frames; second means for geometrically transforming said respective second sets of pixels defining said uncoded second pattern using the pose estimate of said detected uncoded first pattern; and third means responsive to said detected uncoded first pattern for replacing said detected uncoded first pattern with said geometrically transformed uncoded second pattern.