Media processing systems

When a producer processing unit, such as a video decoder, of a media processing system is producing 600 a data output for use by a consumer processing unit, such as a display processor, the producer processing unit also generates 602 metadata for the data output that it is producing and provides 603...

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Bibliographic Details
Main Authors Brian Paul Starkey, Viacheslav Chesnokov, Alex Kornienko, Ertunc Erdil, Sven Ola Johannes Hugosson, Dominic Hugo Symes, Damian Piotr Modrzyk, Guney Kayim, Michal Karol Bogusz
Format Patent
LanguageEnglish
Published 01.01.2020
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:When a producer processing unit, such as a video decoder, of a media processing system is producing 600 a data output for use by a consumer processing unit, such as a display processor, the producer processing unit also generates 602 metadata for the data output that it is producing and provides 603 that metadata for use by the consumer processing unit. The consumer processing unit then uses 605, 606 the metadata provided by the producer processing unit when processing 607 the data output to which the metadata relates. Metadata may represent absolute characteristic(s) of data or data output (frame) changes, and may be used for image enhancement, scene change detection, scene-aware colour management, scaling or tone mapping. For data output as a YUV frame, metadata can comprise average YUV values and a low resolution luminance layer derived from the full resolution YUV frame. Other metadata parameters may comprise noise level information, or gradients and/or edge sharpness in data output regions. The system and associated method facilitates provision of metadata to assist consumer unit processing, while reducing or avoiding the need for consumer or user units (clients) themselves to generate metadata.
Bibliography:Application Number: GB20180007782