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System for implanting an image into a video stream
| Details |
Inventors: Kreitman, Haim; Bar-El, Dan; Amir, Yoel; Tirosh, Ehud;
Assignee: Scitex America Corporation (Bedford, MA)
Primary Examiner: Kostak; Victor R.
Assistant Examiner: Miller; John W.
Attorney, Agent or Firm: Skjerven, Morrill, MacPherson, Franklin & Friel
A system and method which mixes images, such as an advertisement, with a video stream of action occurring within a relatively unchanging space, such as a playing field, is disclosed. The system utilizes a model of the background space to change the video stream so as to include the image at some location within the background space. It includes a video frame grabber and an image implantation system. The frame grabber grabs a single frame of the video signal at one time. The image implantation system typically implants the grabbed image into the frame onto a predefined portion of a preselected one of the surfaces of the background space if the portion is shown in the frame. To determine the location of the portion to have implantation, the image implantation system includes a unit for receiving a) a flat model of the fixed surfaces and b) an image mask indicating the portion of the flat model onto which the image is to be mixed. Via the model, the image implantation system identifies if and where the portion is shown in the frame. |
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DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS Reference is now made to FIG.
1 which illustrates a system for mixing images, such as advertisements, with a video stream of action occurring within a relatively unchanging background space.
The images are implanted onto a selected surface of the background space.
The system will be described in the context of a video of a tennis game, illustrated in FIG.
2 to which reference is also made.
It will be understood that the present invention is operative for all situations in which the surfaces in which action occurs are known a priori and are identifiable.
The system of the present invention typically comprises a video frame grabber 10 for converting an input video sequence (such as of a tennis game) into video frames, a design workstation 12 for designing images (such as advertisements) to be implanted onto a selected surface (such as on the tennis court) seen within the video frame, an image implantation system 14 for merging the video frame with the designed image, a control computer system 16 for controlling the action of and providing operator input to the image implantation system 14 and a broadcast monitor 18.
The control computer system 16 typically comprises a central processing unit (CPU) 20, a keyboard 22, a mouse 24, a disk 26, a removable media drive such as a floppy 27, and a monitor 28.
The monitor 28 is typically driven by a graphics adaptor forming part of the CPU 20.
The design workstation 12 typically also includes a removable media drive such as floppy 27.
The control computer system 16 and the image implantation system 14 typically communicate via a system bus 29.
The design workstation and the control computer system 16 typically communicate via removable media.
The video sequence can be received from any source, such as a videotape, a remote transmitting station via satellite, microwave or any other type of video communication, etc.
If the sequence is provided from a satellite, the system has no control over the video rate
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Finance 
