Apparatus and method for motion vector encoding/decoding, and apparatus and method for image encoding/decoding using same
US9363531B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2015 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | May 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/52
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video decoding method using an inter-prediction is disclosed. The method includes at least: determining a motion vector of a current block to be decoded in a current picture; predicting pixels in current block using the motion vector of the current block; extracting quantized transform coefficients by decoding a bitstream; reconstructing residual signals by inversely quantizing and then inversely transform the quantized transform coefficients; and adding the predicted pixels and the reconstructed residual signals which correspond to the predicted pixels, wherein the determination of the motion vector of the current block comprises: obtaining a flag by decoding a bitstream, the flag indicating one among a plurality of modes for determining the motion vector of the current block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.