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:
Jun. 04, 1991
Filed:
Nov. 15, 1985
Paul R Haaker, Hamburg, DE;
Erhard P Klotz, Halstenbek, DE;
Reiner H Koppe, Hamburg, DE;
Rolf E Linde, Haseldorf, DE;
U.S. Philips Corp., New York, NY (US);
Abstract
The invention relates to a method of forming images of layers of an object, and a device for performing this method. The layer images are formed from single-shadow images produced from different radiation source positions. The image values of the single-shadow images are first stored in a first as well as in a second memory. From the values of given image points in the second memory, a layer image value is calculated. The layer image value is added to the corresponding image points in a third memory. From the differences between these standardized sums in the third memory and the original image values in the first memory, there are formed correction values for correcting the image values in the second memory. Improved layer images are thus obtained.