The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 1987
Filed:
Apr. 06, 1984
John Merchant, Needham, MA (US);
Honeywell Inc., Minneapolis, MN (US);
Abstract
A passive range measurement device and method are described which utilizes a digitized image stream derived from images taken by a camera which is also part of the device. The device also includes a digital processor which operates on the image stream to extract the coefficients of an address modification function from which range to each point in the scene, relative camera-scene, and camera-platform orientations may be derived. The extraction process is based upon calculation of a vector field which describes the pixel-to-pixel misregistration between two images. Improvements in the modification function are found from global, then localized averages of the vector field. Thus, a topographic map of the scene which is referenced to the position of the camera and platform is created, and may be used to create a terrain following capability.