“Midlink” virtual insertion system

• US 6,525,780 B1
• Filed: 12/18/1998
• Issued: 02/25/2003
• Est. Priority Date: 12/18/1998
• Status: Expired due to Fees

• Current Assignee: Evs International (Swiss) Sàrl
• Original Assignee: Symah Vision, SA
• Inventors: Bruno, Pierre, Grimaud, Jean Jacques, Medioni, Gerard Guy
• Primary Examiner(s): Miller, John
• Assistant Examiner(s): DESIR, JEAN WICEL
• Application Number:
  US09/215,274
• Time in Patent Office: 1,530 Days
• Field of Search: H04/N.5262, 348/598, 348/578, 348/589, 348/600, 348/153, 348/159, 348/584, 348/722, 386/107
• US Class Current: 348/578
• CPC Class Codes: H04N 5/272 Means for inserting a foreground image in a background image, i.e. inlay, outlay

Abstract

A television system is provided wherein a target region in successive video images is replaced by a matching pattern adapted to be inserted into the target region, using a virtual insertion unit located downstream of the originating site. The system includes television cameras for, when active, producing a sequence of video images of a scene, and a switcher or multiplexer for switching between camera images. A broadcast image processor located with the multiplexer in an outside broadcast van receives the video images and adds layers of graphics and special effects to the video images to produce a broadcast feed. The virtual insertion unit, which is located off-site from the van, receives the broadcast feed and modifies the video images of the broadcast feed by replacing the target region of these images with a replacement pattern adapted to be inserted into the target region.

Claims

1. A television system wherein a target region in successive video images is replaced by a matching representation pattern adapted to be inserted into said target region, said system comprising:

at least one television camera for producing a sequence of video images of a scene;

a mobile control room located on-site with said at least one camera and including broadcast image processing means for receiving said video images and for adding layers of graphics and special effects to said video images to produce corresponding video images and means for outputting the corresponding video images in digital form as a broadcast feed; and

virtual insertion means, located off-site from said at least camera and said broadcast image processing means, for receiving said broadcast feed and for modifying said broadcast feed by replacing a target portion of the video images of the broadcast feed with a replacement pattern adapted to be inserted into the target portion and

monitoring means for monitoring the graphics and special effects added to produce the video images of the broadcast feed and for producing an output indicating that a video image received by said virtual insertion means should not be modified thereby based on the nature of the graphics and special effects that have been added to the received video image.

2. A system according to claim 1 wherein said system includes a plurality of cameras which are adapted to be active, wherein said system further includes means for determining which one of said plurality of cameras is presently active and for producing a corresponding output, and wherein said virtual insertion means replaces a target portion of a video image of the broadcast feed from the active camera based on said output.

3. A system according to claim 2 further comprising router means housed separately from said mobile control room for, during calibration of the system, receiving said broadcast feed and individual direct feeds from each of said cameras and for selectively outputting one of said feeds.

4. A system according to claim 1, wherein said system includes a plurality of cameras, and further comprises means for generating camera closure signals for indicating which of said plurality of cameras is active, and means for monitoring said camera closure signals to determine if a camera closure signal has been received for the camera whose video image is currently being received by said virtual insertion means.

5. A system according to claim 1 wherein said monitoring means produces said output when any of the added graphics and special effects is incompatible with the replacement pattern.

6. A system according to claim 1 wherein said monitoring means produces said output when any special effect has been added to the received image to be processed.

7. A system according to claim 1 wherein said monitoring means produces said output when any layer of the added graphics is inconsistent with the replacement pattern.

8. A system according to claim 1, wherein said at least one camera comprises a plurality of instrumented cameras each including sensor means associated therewith for producing operational data with respect to corresponding camera, and said system further comprises means for sending said operational data to said virtual insertion means for use in replacing the target portion of a video image of the broadcast feed with a replacement pattern consistent with said operational data.

9. A system according to claim 8 wherein said operational data includes camera pan, tilt, focus and zoom.

10. A television system wherein a target region in successive video images is replaced by a matching representation pattern adapted to be inserted into said target region, said system comprising:

a plurality of television cameras for, when active, producing a sequence of video images of a scene;

sensor means for each of said cameras for sensing a plurality of operational parameters associated with the corresponding camera and for producing a respective data output;

a mobile control room located on-site with said cameras and including broadcast image processing means for receiving said video images and for adding layers of graphics and special effects to said video images to produce corresponding video images, and means for outputting the corresponding video images in digital form as a broadcast feed;

local control means located on-site with said mobile control room for receiving the data outputs of said sensor means and for outputting a data signal; and

virtual insertion means, located off-site from said cameras and said local control means, for receiving said broadcast feed and said data signal and for modifying said broadcast feed by replacing a target portion of the video images of the broadcast feed with a replacement pattern adapted to be inserted into the target portion,

said local control means further comprising logic control means for monitoring the graphics and special effects added to produce the video images of the broadcast feed and for producing an output indicating that a video image of the broadcast feed received by said virtual insertion means should not be modified thereby based on the nature of the graphics and special effects that have been added to the received video image.

11. A system according to claim 10 wherein said local control means further comprises means for determining which one of said plurality of cameras is presently active and for producing a corresponding output and wherein said virtual insertion means receives a control signal based on that output and, responsive thereto, replaces the target portion of a video image of the broadcasting feed from the camera indicated to be active.

12. A system according to claim 10 wherein said local control means further comprises router means for, during calibration of the system, receiving said broadcast feed and individual direct feed from each of said plurality of cameras and for selectively outputting one of said feeds.

13. A system according to claim 10 wherein said mobile control room includes means for generating camera closure signals for indicating which of said plurality of cameras is active and said local control means includes logic control means for monitoring said camera closure signals to determine if a camera closure signal has been received for the camera whose video image is currently being received by said virtual insertion means and for sending a corresponding signal to said virtual insertion means.

14. A system according to claim 13 wherein said logic control means produces an output indicating that the second in time of two cameras is active when closure signals for a first in time camera and the second in time camera are received at the same time.

15. A system according to claim 10 wherein said logic control means produces said output when any one of the added graphics or the special effect is incompatible with the replacement pattern.

16. A system according to claim 10 wherein said control logic means produces said output when any special effect has been added to the received image to be processed.

17. A system according to claim 10 wherein said control logic means produces said output when any layer of the added graphics is incompatible with the replacement pattern.

18. A television system wherein a target region in successive video images is replaced by a matching representation pattern adapted to be inserted into said target region, said system comprising:

a plurality of television cameras for, when active, producing a sequence of video images of a scene;

sensor means for each of said cameras for sensing a plurality of operational parameters associated with the corresponding camera and for producing a respective data output;

a mobile control room located on-site with said cameras and including broadcast image processing means for receiving said video images and for adding layers of graphics and special effects to said video images to produce corresponding video images, and means for outputting the corresponding video images in digital form as a broadcast feed;

local control means located on-site with said mobile control room for receiving the data outputs of said sensor means and for outputting a data signal; and

virtual insertion means, located off-site from said cameras and said local control means, for receiving said broadcast feed and said data signal and for modifying said broadcast feed by replacing a target portion of the video images of the broadcast feed with a replacement pattern adapted to be inserted into the target portion,

said mobile control room further including means for generating camera closure signals for indicating which of said plurality of cameras is active and said local control means including logic control means for monitoring said camera closure signals to determine if a camera closure signal has been received for the camera whose video image is currently being received by said virtual insertion means and for sending a corresponding signal to said virtual insertion means, and

said logic control means producing an output indicating that the second in time of two cameras is active when closure signals for a first in time camera and the second in time camera are received at the same time.