VIDEO CONFERENCE SYSTEM AND METHOD FOR MAINTAINING PARTICIPANT EYE CONTACT

• US 20140362170A1
• Filed: 02/15/2012
• Published: 12/11/2014
• Est. Priority Date: 02/15/2012
• Status: Abandoned Application

• Current Assignee: Thomson Licensing (Vantiva SA)
• Original Assignee: Thomson Licensing (Vantiva SA)
• Inventors: Walker, Mark Leroy
• Application Number:
  US14/376,963
• Publication Number:
  US 20140362170A1
• Time in Patent Office: Days
• US Class Current: 348/14.08
• CPC Class Codes: H04N 19/105 Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
• CPC Class Codes: H04N 19/13 Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
• CPC Class Codes: H04N 19/147 according to rate distortion criteria rate-distortion as a criterion for motion estimation H04N19/567
• CPC Class Codes: H04N 19/176 the region being a block, e.g. a macroblock
• CPC Class Codes: H04N 19/44 Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
• CPC Class Codes: H04N 19/46 Embedding additional information in the video signal during the compression process H04N19/517, H04N19/68, H04N19/70 take precedence
• CPC Class Codes: H04N 19/51 Motion estimation or motion compensation
• CPC Class Codes: H04N 19/593 involving spatial prediction techniques
• CPC Class Codes: H04N 19/61 in combination with predictive coding
• CPC Class Codes: H04N 19/91 Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
• CPC Class Codes: H04N 7/15 Conference systems

Abstract

Eye contact between remote and local video conference participants is advantageously maintained by displaying the face of a remote video conference so the remote video conference participant having his or her eyes positioned in accordance with information indicative of image capture of the local video conference participant. In this way, substantial alignment can be achieved between the remote participant'"'"'s eyes with those of the local participant.

Claims

1. A method for maintaining eye contact between a remote and a local video conference participant comprising the step of

displaying a face of a remote video conference participant to a local video conference participant with the remote video conference participant having his or her eyes positioned in accordance with information indicative of image capture of the local video conference participant.

2. The method according to claim 1 further including the step of scaling the face of the remote video conference participant.

3. The method according to claim 2 wherein the face of the remote video conference participant is scaled to life size.

4. The method according to claim 2 wherein the scaling occurs in accordance with metadata specifying face size.

5. A method for conducting a video conference between first and second video conference participants, comprising the steps of:

capturing at least one stereoscopic image pair of the first video conference participant;

interpolating the at least one stereoscopic image pair to yield a first image for transmission to the second participant, said interpolating being with respect to a point on a display observed by the first participant;

receiving an incoming second image of the second video conference participant; and

displaying a face of the second video conference participant so that his or her eyes appear substantially centered at the point.

6. The method of claim 5 wherein the receiving step further includes the steps of

examining the second image to locate the face;

and

processing the second image to center the face within the second image.

7. The method according to claim 6 wherein processing of the second image comprises the steps of:

circumscribing the detected face with a bounding box; and

cropping the second image using the bounding box.

8. The method according to claim 6 further including the step of scaling the face.

9. The method according to claim 8 wherein the face is scaled to life size on the display.

10. The method according to claim 6 wherein the scaling occurs in accordance with metadata specifying face size.

11. The method according to claim 5 wherein the face is positioned in the display in accordance with information indicative of at least one of:

(a) image capture position of the at least stereoscopic image pair, display pixel size, and screen size of the display.

16. The method according to claim 8 wherein the face is scaled to life size.

17. The method according to claim 6 wherein the scaling occurs in accordance with metadata specifying face size.

12. A terminal for conducting a video conference between first and second video conference participants, comprising the steps of:

at least a pair of television cameras for capturing at least one stereoscopic image pair of the first video conference participant;

means for interpolating the at least stereoscopic image pair to yield a first image for transmission to the second participant;

an input signal processing module for processing an incoming second image of the second video conference participant; and

,

a display coupled to the input signal processing module for displaying a face of the second video conference participant with the face of the second video conference participant positioned so that his or her eyes appear substantially at a point on the display;

wherein, said cameras are disposed about the display and the interpolation occurs with respect to positions of the cameras and the point on the display.

13. The terminal according to claim 12 wherein the input signal processing module examines the second image to locate the face and processes the second image to center the face within the second image.

14. The terminal according to claim 12 wherein the input signal processing processes the second image by circumscribing the face with a bounding box and cropping the second image using the bounding box.

15. The terminal according to claim 12 wherein the input signal processing scales the face.