Patent · US Active

Method for representing images using quantized embeddings of scale-invariant image features

US8891878B2 · kind B2 · utility

3Cited by

1References

18Claims

0Family size

Assignee

Mitsubishi Electric Research Laboratories, Inc. · US

Inventors

Shantanu Rane · Cambridge, US
Petros Boufounos · Boston, US
Mu-Jing Li · Sunnyvale, US

Key dates

Filing date	Jun 15, 2012
Grant date	Nov 18, 2014
Priority date	—
Expiry date	Dec 12, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG06V10/7715
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Scale-invariant features are extracted from an image. The features are projected to a lower dimensional random projection matrix by multiplying the features by a matrix of random entries. The matrix of random projections is quantized to produce a matrix of quantization indices, which form a query vector for searching a database of images to retrieve metadata related to the image.

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