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:
Apr. 05, 2016
Filed:
Oct. 29, 2013
Gracie Bay Young, San Diego, CA (US);
Corey A. Lane, San Diego, CA (US);
Bryan D. Bagnall, San Diego, CA (US);
Shibin Parameswaran, San Diego, CA (US);
Gracie Bay Young, San Diego, CA (US);
Corey A. Lane, San Diego, CA (US);
Bryan D. Bagnall, San Diego, CA (US);
Shibin Parameswaran, San Diego, CA (US);
The United States of America, as Represented by the Secretary of the Navy, Washington, DC (US);
Abstract
Methods for detecting a horizon in an image with a plurality of pixels can include the step of blurring the image with a noise filter, then dividing the image into an M×N matrix of sub-blocks S. For each sub-block S, horizon features can be coarse-extracted by defining an r-dimensional vector having P feature values for each sub-block S and clustering each r-dimensional vectors into two clusters using a k-means statistical analysis. The corresponding sub-blocks S corresponding to the two clusters can be masked with a binary mask. The methods can further include the step of fine-extracting the horizon features at a pixel level for each sub-block Sand sub-block Swhen the binary mask changes value from sub-block Sto said sub-block S, for i=1 to M and j=1 to N.