Patent ID: 8754827
Filing Date: 2014-06-17
Classification: G06F,G06T,G09G,H04L,H04N

Abstract:
1. A method of processing updates of an image for transmission from a first terminal to a second terminal for use in screen sharing between the first terminal and the second terminal wherein updates to the image displayed on a first display at the first terminal are also displayed on a second display at the second terminal, the image being divided into an array of contiguous sub-tiles, each sub-tile comprising more than one picture element of the image, the method comprising: determining that a plurality of sub-tiles of the image have changed at the first terminal; selecting at least one of said changed sub-tiles and at least one contiguous sub-tile and forming a tile by: encoding the tile for transmission to the second terminal, said encoding determining sub-tile data identifying which sub-tiles are included in the tile such that the image can be updated at the second terminal in accordance with the changes to said changed sub-tiles, wherein the configuration of the tile is flexible such that the number of contiguous sub-tiles encoded in the tile can be varied.