Image processing apparatus, image processing method, and computer program product
US8295642B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2009 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Aug 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/00785
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A first line sensor optically reads a first surface of an original in a main scanning direction to obtain first line image data. A second line sensor arranged in parallel to the first line sensor at a predetermined distance optically reads a second surface of the original to obtain second line image data. A tilt detecting unit detects main-scanning coordinates of a first edge and a second edge from the first line image data, detects main-scanning coordinates of a third edge and a fourth edge from the second line image data, and detects a tilt of the original with respect to a sub-scanning direction based on the detected main-scanning coordinates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.