Patent · US Expired

Image compression with tile alignment

US7158679B2 · kind B2 · utility

49Cited by
5References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 29, 2002
Grant dateJan 2, 2007
Priority date
Expiry dateSep 27, 2024

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06T9/007
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

An image compression apparatus includes a tile size determiner, an image divider and an image compression processor. The tile size determiner determines an arbitrary size of a rectangular tile for each component of a still image having a plurality of components. The image divider divides the image using the rectangular tiles the sizes of which are determined by the tile size determiner. The image compression processor performs an irreversible compression process on the image divided by said image divider.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.