Dynamic image encoding method and device and program using the same
US8428136B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 8, 2007 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Feb 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A dynamic image encoding technique provides high image quality encoding while eliminating the formation of a subjectively undesirable vector field. A dynamic image encoding device includes: an inter-frame predictor, a motion vector calculator, a prediction motion vector calculator, a skip mode motion vector calculator, and a skip mode validity judger. The skip mode validity judger calculates a code amount of a differential motion vector of the motion vector estimated by considering the motion vector of the skip mode and the subjective image quality, and uses a value of the code amount of the differential motion vector weighted by a block quantization parameter for the skip mode validity judgment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.