Patent · US Active

Keypoint detection with trackability measurements

US9747516B2 · kind B2 · utility

2Cited by

3References

30Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Daniel Wagner · Wien, AT
Kiyoung Kim · Wien, AT

Key dates

Filing date	Sep 4, 2015
Grant date	Aug 29, 2017
Priority date	—
Expiry date	Sep 5, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06V10/62
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Disclosed embodiments facilitate keypoint selection in part by assigning a similarity score to each candidate keypoint being considered for selection. The similarity score may be based on the maximum measured similarity of an image patch associated with a keypoint in relation to an image patch in a local image section in a region around the image patch. A subset of the candidate keypoints with the lowest similarity scores may be selected and used to detect and/or track objects in subsequent images and/or to determine camera pose.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.