Patent ID: 6069668
Filing Date: 2000-05-30
Classification: H04N

Abstract:
A video effects device for producing live-action video, comprising:input means for capturing a frame of live-action video and for storing said frame in a frame buffer as a set of pixels;means for generating image addresses, each having an x-coordinate and a y-coordinate;a vector offset table addressed by a first index and by a second index, including first means for receiving the x-coordinate and y-coordinate of a first image address respectively as the first index and second index;means for mapping said first image address to a raw activation factor;means for reducing or increasing a raw activation factor to produce an adjusted activation factor, including means for varying the amount of reduction or increase with time;computation means for multiplying an adjusted activation factor with a vector offset to produce an activated vector offset and for adding said activated vector offset to a second image address to produce a frame buffer read address; andmeans for outputting pixels, coupled to said computation means and to said frame buffer to generate a transformed video signal.