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:
Oct. 29, 2019
Filed:
Jul. 18, 2017
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Stephan Liwicki, Cambridge, GB;
Christopher Zach, Cambridge, GB;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Abstract
A camera pose estimation method determines the translation and rotation between a first camera pose and a second camera pose. Features are extracted from a first image captured at the first position and a second image captured at the second position, the extracted features comprising location, scale information and a descriptor, the descriptor comprising information that allows a feature from the first image to be matched with a feature from the second image. Features are matched between the first image and the second image. The depth ratio of matched features is determined from the scale information. n matched features are selected, where at least one of the matched features is selected with both the depth ratio and location. The translation and rotation are calculated between the first camera pose and the second camera pose using the selected matched features with depth ratio derived from the scale information.