Coverage mask generation for large images
US7912296B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2006 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Jan 6, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30184
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A computer-implemented method is described. The method includes generating a coarse resolution image from a finer resolution image, generating a coarse coverage mask that identifies valid and non-valid data in the coarse resolution image, and determining whether data in the finer resolution image is valid or non-valid data based on whether corresponding data identified by the coarse coverage mask is valid or non-valid data. In certain embodiments, generating a coarse resolution image can include segmenting the finer resolution image into tiles and compressing each tile. Compressing each tile can be preformed using a lossless compression, and at least two tiles can be transmitted to separate computing devices and compressed in parallel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.