Bit depth enhancement for scalable video coding

A bit depth, coding technology, applied in the direction of digital video signal modification, television, electrical components, etc., can solve problems such as coding inefficiency
CN101459845AInactive Publication Date: 2009-06-17INTEL CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INTEL CORP
Publication Date
2009-06-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

A video system includes an analyzer and a bit depth predictor. The analyzer receives a first coded video signal, which is indicative of first values for pixels. The first values are associated with a first bit depth. The analyzer, for each pixel, analyzes the first values for the pixels located in a neighborhood that contains said each pixel. The bit depth predictor, based at least in part on the analysis, generates a second coded video signal that is indicative of second values for the pixels. The second values are associated with a second bit depth that is different than the first bit depth.
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Description

technical field

[0001] The present invention relates to bit depth enhancement for scalable video coding. Background technique

[0002] The present invention generally relates to bit depth enhancement for scalable video coding.

[0003] A particular video can be viewed by many different viewers using many different devices and connections. For example, a particular Internet site can broadcast a video stream that can be viewed over a variety of wired and wireless networks, on mobile devices, desktop computers, and televisions, etc., with varying capabilities, connected to the site. To accommodate this different environment, a concept called scalable video coding can be employed.

[0004] In scalable video coding, multiple layers of compressed video streams are provided, which allow each end device to extract the information matching the device's capabilities and ignore the rest. The compressed video stream can be encoded to accommodate a number of different scalable feature...

Claims

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