Image data processing apparatus and motion compensation processing method used therefor, and recording medium
US6831951B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 2, 2001 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Apr 22, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A compressed data buffer 21 maintains an image data loaded from a storage device 1, and a decoding section 22 conducts variable length decoding, inverse quantization and inverse discrete cosine transform, and a pixel data shifting section 23 shifts each value of pixel data to right by 1 bit, and a motion compensating section 24 applies motion compensation processing to the data shifted to right by 1 bit, and the frame data buffer 25 stores an image data to be displayed, and a reference data calculating section 24a of the motion compensating section 24 obtains a reference data from a reference buffer based on a motion vector, and a reference data adding section 24b adds the reference data to a data to which decoding processing has been applied, and a reference data storing section 24c leaves in the reference buffer the data to which the motion compensation processing has been applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.