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:
Nov. 30, 2021
Filed:
Feb. 06, 2020
Thanh Phuoc Hong, Toronto, CA;
Ling Guan, Toronto, CA;
Thanh Phuoc Hong, Toronto, CA;
Ling Guan, Toronto, CA;
Other;
Abstract
Systems and method are provided for detecting key-points in at least one image which involves dividing the at least one image into a plurality of image blocks; determining sparse representations of the image blocks using a dictionary D; determining at least one measure for each of the sparse representations of the image block; optionally determining key-points for which the at least one measure for each of the image blocks falls within a specified range; and retaining only the determined key-points with the at least one measure that is a local maxima in a sliding window when performing non-maxima suppression and identifying these retained key-points as detected key-points. In accordance with further teachings provided herein, there is also provided methods and systems for performing scale and/or rotation invariant sparse coding based key-point (SRI-SCK) detection and processing of images.