Method for stitching partial radiation images to reconstruct a full image
US6459094B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2001 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Feb 23, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/2014
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method of forming a composite image from first and second digital images formed by recording first and second contiguous segments of a larger radiographic image in first and second overlapping storage phosphor members, exposed to a source of X-rays wherein the image content in the overlapped region is the same in both images and the end edge of the first member is present both on the first image and as a shadow edge in the second image, the method comprising: correcting for geometric distortion in the first and second digital images; determining any rotational displacement and any vertical displacement between the first and second images by matching the first member end edge in the first image to its shadow in the second image; correcting for image orientation based on any said rotational displacement; determining any horizontal displacement between the first and second images by correlating the image content in the overlapped region of the first and second images; and stitching said first and second images together along the first member end edge based on any said horizontal and vertical displacements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.