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.

Date of Patent:
Jul. 08, 2025

Filed:

Dec. 10, 2021
Applicants:

Duke University, Durham, NC (US);

Ramona Optics Inc., Durham, NC (US);

Inventors:

Kevin Zhou, Durham, NC (US);

Colin Cooke, Durham, NC (US);

Jaehee Park, Durham, NC (US);

Ruobing Qian, Durham, NC (US);

Roarke Horstmeyer, Durham, NC (US);

Joseph Izatt, Durham, NC (US);

Sina Farsiu, Durham, NC (US);

Assignees:

DUKE UNIVERSITY, Durham, NC (US);

RAMONA OPTICS INC., Durham, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 5/50 (2006.01); G06T 5/70 (2024.01); G06T 5/80 (2024.01);
U.S. Cl.
CPC ...
G06T 5/50 (2013.01); G06T 5/70 (2024.01); G06T 5/80 (2024.01); G06T 2207/20084 (2013.01); G06T 2207/20221 (2013.01);
Abstract

A method of mesoscopic photogrammetry can be carried out using a set of images captured from a camera on a mobile computing device. Upon receiving the set of images, the method generates a composite image, which can include applying homographic rectification to warp all images of the set of images onto a common plane; applying a rectification model to undo perspective distortion in each image of the set of images; and applying an undistortion model for adjusting for camera imperfections of a camera that captured each image of the set of images. A height map is generated co-registered with the composite image, for example, by using an untrained CNN whose weights/parameters are optimized in order to optimize the height map. The height map and the composite image can be output for display.


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