Information processing apparatus and method to entropy code upon processing of predetermined number of precincts
US8503809B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2008 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Feb 8, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an information processing apparatus and method which make it possible to transmit image data with high quality and low delay. A wavelet transform unit 101 applies wavelet transform to image data using a reversible filter that performs data transform with a reversible method that completely ensures forward direction and backward direction transform. An entropy coding unit 103 encodes coefficient data using a predetermined entropy coding scheme, with a reversible method that completely ensures forward direction and backward direction transform. The present invention is applicable to, for example, an encoding apparatus or a decoding apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.