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. 24, 1997
Filed:
Dec. 08, 1994
Kennth G Leib, Wantagh, NY (US);
Grumman Aerospace Corporation, Los Angeles, CA (US);
Abstract
Established text characteristics help generate a random ergodic ensemble of characters constituting a random text image. The image is scaled in accordance with different optical parameters such as lens position, focal length, and change in focal length. The test image is printed or displayed so that a Fourier Transform of the image can be taken and recorded. The recorded image is printed and constitutes an inverse filter. The inverse filter is positioned in an inverse Fourier Transform. An actual image (blurred text) undergoes a Fourier Transform and is then filtered by the inverse filter positioned at the inverse Fourier plane. The resulting filtered image then undergoes an inverse Fourier Transform so as to restore or at least greatly enhance the blurred image.