Patent · US Active

Systems, circuits, and methods for efficient hierarchical object recognition based on clustered invariant features

US9204112B2 · kind B2 · utility

91Cited by

15References

13Claims

0Family size

Assignee

STMicroelectronics SA

Inventors

Paolo Pasteris · Biella, IT
Giovanni Condello · Pavia, IT
Danilo Pau · Sesto San Giovanni, IT

Key dates

Filing date	Feb 7, 2013
Grant date	Dec 1, 2015
Priority date	—
Expiry date	Feb 7, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06F2218/08
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

One embodiment is a method for selecting and grouping key points extracted by applying a feature detector on a scene being analyzed. The method includes grouping the extracted key points into clusters that enforce a geometric relation between members of a cluster, scoring and sorting the clusters, identifying and discarding clusters that are comprised of points which represent the background noise of the image, and sub-sampling the remaining clusters to provide a smaller number of key points for the scene.

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