Moving image encoding apparatus and control method, and computer program
US8275034B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 15, 2007 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | Feb 10, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A moving image encoding apparatus, comprising, a first image transformation unit adapted to transform image data into first image information, with reference to reference image data, a second image transformation unit adapted to inverse transform the first image information into reconstructed image data and a determination unit adapted to determine, based on the image data and the reconstructed image data, whether or not to use the reconstructed image data as the reference image data, wherein the determination unit calculates a peak signal-to-noise ratio (PSNR) from the reconstructed image data and the image data, and, if the PSNR is greater than or equal to a predetermined threshold, determines to use the reconstructed image data as the reference image data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.