Back to results
US 2006/0131485 A1Published application
Method and system for determining motion based on difference image correlation
AssigneeMicron Technology, Inc.
InventorsS. Rosner, Geraint Owen, George Clifford
Life of this patent
Estimating the term…
Abstract
An imager captures successive images of an object. One image is then subtracted from another image to generate difference images. Each difference image is then correlated with itself or with one of the images used to generate the difference image to determine the relative motion between the imager an the object.
Claims19
A method for determining a navigation vector for a device, comprising:
- capturing a first image of an object;
- capturing a second image of the object;
- subtracting the first image from the second image to generate a difference image;
- performing a correlation using the difference image;
- and
- determining the navigation vector from a result of the correlation, wherein the navigation vector represents relative motion between the device and the object.
3 more elements
A system for determining the relative motion of a device, comprising:
- an imager configured to capture a plurality of images;
- a correlator;
- and
- a difference image generator electrically coupled to the imager and the correlator and configured to generate difference images using pairs of captured images.
1 more element
Dependencies are inferred from the claim text.