Methods and apparatus for partitioning transform data
US6925208B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 4, 2002 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Jan 9, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/124
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Transform data is partitioned to more efficiently process requests in a server to transfer source data to a client. The transform data, generated from source data, comprises spatially related coefficients such that a block of coefficients permits reconstruction of identifiable portions of the source data. The transform data is partitioned into a plurality of partitions of coefficients. Each partition consists of coefficients for reconstruction of an identifiable portion of the source data. The client generates a request for one or more partitions of coefficients. The client request is sent to the server. The server extracts the partitions of coefficients set forth in the request, and transfers the partitions of coefficients to the client. Techniques for partitioning of transform data to support lossy compression are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.