Real-time method of digitally altering a video data stream to remove portions of the original image and substitute elements to create a new image

  • US 5,764,306 A
  • Filed: 03/18/1997
  • Issued: 06/09/1998
  • Est. Priority Date: 03/18/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of digitally altering a video data stream representing an original image in real-time, using a computer system having a memory, and a visual display screen, to remove portions of the original video image and substitute new elements to create a new video image comprising the steps of:

  • storing at least one frame of data representing said original image in a first incoming video data stream in a data structure in a first location in said memory in a computer;

    displaying said stored original image on said visual display;

    capturing real-time video from a second incoming video data stream representing a subsequently modified original image and storing data representing said modified original image in a data structure in a second location in said memory in a computer;

    comparing video data in the second video data stream representing said original image with modifications with said stored original image video data to differentiate the background and foreground elements;

    removing the common background elements of said stored original image and the subsequently modified original image leaving only foreground elements of said subsequently modified original image;

    replacing said background elements of said subsequently modified original image with alternate background replacement elements; and

    displaying only the foreground elements in said subsequently modified original image upon the said alternate background replacement elements to form said new image.

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