Notebook information processor and projective transformation parameter calculating method
US7907171B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2008 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Nov 4, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A notebook information processor includes a lid including an image photographing unit and a display, and a main body, wherein the control unit includes a live view displaying unit that displays a live view obtained by photographing at least a portion of the main body within a photographing area of the image photographing unit on the display, a rectangle detecting unit that detects a rectangle for calculating a projective transformation parameter from the live view, a projective transformation parameter calculating unit that calculates the projective transformation parameter from a coordinate of the rectangle, and a still image obtaining unit that performs a projective transformation on the live view so as to obtain a live view photographed from a front direction, using the projective transformation parameter, obtains a still image from the live view after the projective transformation, and stores the still image in the storage unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.