Screen map and standards-based progressive codec for screen content coding

摘要

Methods and systems for delivering screen content to a client device are disclosed. One method includes, for each of a plurality of coding units corresponding to screen regions included in a screen at a particular time, classifying screen content included in the coding unit as having a content type selected from among a plurality of content types, at least one of the content types comprising a screen image type, and, based on a determination that the screen content has a screen image type, applying a progressive standards-based encoding to the screen content of that coding unit. The method also includes transmitting encoded screen content for each of the screen regions to the client device.

主权项

1. A method of compressing screen content for delivery to a client device, the method comprising:
for each of a plurality of coding units corresponding to screen regions included in a screen at a particular time:
classifying screen content, wherein screen content comprises data describing information displayed on a display, the screen content included in the coding unit as having a content type selected from among a plurality of content types, at least one of the content types comprising an image type; andbased on a determination that the screen content has a image type, applying a progressive standards-based encoding to the screen content of that coding unit; based on the classification of the screen content in each coding unit, assigning metadata including information about the classification of the screen content to each coding unit; generating a screen map including the metadata associated with each of the plurality of coding units, the metadata defining to a receiving device whether the screen region associated with each coding unit can be decoded by a special-purpose programmable circuit of the receiving device; and transmitting compressed screen content bitstreams for each of the screen regions to the client device.