Methods and systems for removing artifacts introduced by image registration
US6181832A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1998 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Apr 17, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention features a method for determining a set of post-registration correction terms that correct for artifacts introduced by an algorithm used to register images represented by values at an array of points, the method including: providing a series of images of a reference object; registering the images with each other using the algorithm to produce a series of registered images; and determining the set of post-registration correction terms based on variations among the registered values of the registered images at selected points. The invention also features a method for correcting artifacts introduced into images registered by an algorithm that repositions unregistered images along a selected coordinate, wherein the algorithm repositions each of the unregistered images along the selected coordinate by a repositioning value, the method including: comparing a variation among the image values of the registered images at a selected region of the array with a variation expressed by a superposition of at least one post-registration correction terms, wherein one of the post-registration correction terms is a vector equal to the values of a polynomial in the selected coordinate at…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.