Invention Grant
- Patent Title: Quantization for hybrid video coding
- Patent Title (中): 混合视频编码的量化
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Application No.: US12531025Application Date: 2008-03-10
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Publication No.: US08634462B2Publication Date: 2014-01-21
- Inventor: Matthias Narroschke , Hans-Georg Musmann
- Applicant: Matthias Narroschke , Hans-Georg Musmann
- Agency: Seed IP Law Group PLLC
- Agent Robert Iannucci
- International Application: PCT/EP2008/052824 WO 20080310
- International Announcement: WO2008/110535 WO 20080918
- Main IPC: H04N7/18
- IPC: H04N7/18

Abstract:
Method for coding a video signal using hybrid coding, comprising: reducing temporal redundancy by block based motion compensated prediction in order to establish a prediction error signal; performing quantization on samples of the prediction error signal or on coefficients resulting from a transformation of the prediction error signal into the frequency domain to obtain quantized values, representing quantized samples or quantized coefficients respectively; calculating a quantization efficiency for the quantized values; calculating a zero efficiency for a quantization, when the quantized values are set to zero; selecting the higher efficiency; and maintaining the quantized values or setting quantized values to zero, for further proceeding, depending on the selected efficiency.
Public/Granted literature
- US20100189180A1 QUANTIZATION FOR HYBRID VIDEO CODING Public/Granted day:2010-07-29
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