KR101732767B1

Title

Quantized pulse code modulation in video coding

Application Number:

KR20137026274

Publication Date:

04-05-2017

Current Assignee:

Family ID:

Application Date:

01-02-2012

Declaring Company:

Publication Country:

US

Priority Date:

04-03-2011

Title

Quantized pulse code modulation in video coding

Application Number:

KR20137026274

Family ID:

Publication Country:

US

Publication Date:

04-05-2017

Application Date:

01-02-2012

Priority Date:

04-03-2011

Current Assignee:

Declaring Company:

Abstract  Abstract

The quantized PCM mode includes quantizing the samples to add distortion to the coded video. In this way, video blocks coded with quantized PCMs appear more uniform with adjacent video blocks coded with other lossy compression techniques such as inter-prediction coding or intra-prediction coding. The video encoder may first quantize the input video samples into a quantization step prior to PCM coding the quantized samples. This quantization step may be signaled to the decoder in the encoded video bitstream. The video decoder may receive an encoded video bitstream comprising quantized PCM coded video samples. These samples are first decoded using pulse code demodulation and dequantized into the same quantization steps used to encode the next video. The video decoder may extract this quantization step from the output bit-depth in the encoded video bitstream.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.