Image processing method for video conferencing, video conferencing device

Abstract

An image processing method for videoconferencing comprising an analysis step of an input image sequence obtained from a camera, the input images being composed of a plurality of pixels, characterized in that the analysis step comprises: a comparison, on an image border area, of the pixels of each image in the input image sequence with the same pixels of a reference image, and an operation aimed at masking the pixels located in the image border area of ​​the input image when said pixels exhibit, with respect to the same pixels of the reference image, a deviation greater than a first threshold. FIG.2

Claims

detection of an unauthorized person triggers the replacement of the output image with a still image.

15. Method according to one of claims 11 to 14, characterized in that said operation comprises a filtering by region to modify the first mask in order to make visible objects of the input image which have at least one of the following characteristics: large object and / or object which extends outside the image border area and / or object which does not touch the edge of the image.

16. Videoconferencing device comprising means for executing the image processing method according to one of claims 1 to 1

17. 1 J. Television decoder comprising a videoconferencing device according to claim 16.

18. Computer program product comprising instructions which when executed by at least one processor cause the execution of the image processing method according to one of claims 1 to 15 by said at least one processor.

19. A non-transitory storage medium comprising instructions which when executed by at least one processor cause the image processing method according to one of claims 1 to 15 to be executed by said at least one processor. [Fig. 4] [Fig. 6]

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