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:
Sep. 15, 2026
Filed:
May. 19, 2022
Yamzz Ip, Roosendaal, NL;
Martin Chudik, Acton, MA (US);
Yorick Bruyn, Ermelo, NL;
YAMZZ IP, Roosendaal, NL;
Abstract
The invention provides an image pre-processing method. In level 1, the method comprises transforming the image () in a low frequency and at least one high frequency subband (). In level n, with n from 2 to N, and N at least 2, the method comprises: transforming the level n−1 low frequency subband () in a level n low frequency and at least one high frequency subband (); resizing the level n at least one high frequency subband () to the corresponding level n−1 at least one high frequency subband () size; subtracting the resized level n at least one high frequency subband (') from the corresponding level n−1 at least one high frequency subband () to obtain level n−1 at least one subtracted subband (); and storing the level n−1 at least one subtracted subband () in a pre-processed image (). In level N, the method comprises storing the level N−1 low frequency subband () in the pre-processed image ().