Invention Grant
- Patent Title: Quantization processes for residue differential pulse code modulation
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Application No.: US14659358Application Date: 2015-03-16
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Publication No.: US09877035B2Publication Date: 2018-01-23
- Inventor: Feng Zou , Joel Sole Rojals , Rajan Laxman Joshi , Chao Pang , Marta Karczewicz
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: H04N19/126
- IPC: H04N19/126 ; H04N19/463 ; H04N19/196 ; H04N19/157

Abstract:
In an example, system and method for coding encoded video data. A quantized residue differences block associated with a current block of a picture is generated and a reconstructed prediction residue for each quantized residue difference in the block of quantized residue differences is generated. Each reconstructed prediction residue is added to its corresponding original prediction value to produce a current block of a picture. Generating the reconstructed prediction residue includes performing inverse quantization on blocks of quantized residue differences, wherein the inverse quantization reconstructs data to which uniform quantization residue differential pulse code modulation (RDPCM) has been applied and wherein the quantization is of the form: ΔXq=floor((X+αQ)/Q) where Q is quantization step and α is quantization offset.
Public/Granted literature
- US20150264376A1 QUANTIZATION PROCESSES FOR RESIDUE DIFFERENTIAL PULSE CODE MODULATION Public/Granted day:2015-09-17
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