Methods and apparatus for alignment of images
US5054097A · kind A · utility
41Cited by
5References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1988 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | Nov 23, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus are disclosed for rapid and interactive "warping" of a first image made up of pixels to form a resulting image made up of pixels which are aligned, pixel-for-pixel, with a second image made up of pixels. The images may be stroboscopic voltage contrast images representing operating states of two integrated circuit devices--a failing device and a fully functional device. The aligned images permit an engineer who may have little knowledge of the device to diagnose dynamic failures of the failing device by comparing the aligned images to produce an image showing the differences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.