Updating an Image

摘要

Various embodiments process updates of an image transmitted between a first terminal and second terminal for screen sharing, wherein updates to the image at the first terminal are also displayed at the second terminal The image is divided into an array of contiguous sub-tiles, each sub-tile comprising more than one picture element of the image. When a plurality of sub-tiles of the image have changed at the first terminal, at least one of said changed sub-tiles and at least one contiguous sub-tile are selected to form a tile. The tile is encoded for transmission to the second terminal, and includes sub-tile data identifying which sub-tiles are included in the tile to enable updating the image at the second terminal in accordance with the changes to said changed sub-tiles. The configuration of the tile is flexible such that the number of contiguous sub-tiles encoded in the tile can be varied.

主权项

1. A device comprising:
at least one processor; and one or more computer-readable storage memories comprising processor-executable instructions which, responsive to execution by the at least one processor, are configured to:
display an image on the device, the image being associated with a shared image between the device and a second device, the image being divided into an array of contiguous sub-tiles, each sub-tile comprising at least one picture element of the image;receive at least a first encoded tile associated with an update to the image from the second device, the at least first encoded tile comprising one or more sub-tiles of the array of contiguous sub-tiles associated with changed sub-tiles of the image, the configuration of the at least first encoded tile being flexible to enable a variety number of sub-tiles within the at least first encoded tile; andupdate the image in accordance with said changed sub-tiles.