Patent · US Active

Image matching method based on cascaded binary encoding

US9996764B2 · kind B2 · utility

3Cited by

5References

5Claims

0Family size

Assignee

Institute of Automation, Chinese Academy of Sciences · CN

Inventors

Jian Cheng · Jingwei, CN
Cong Leng · Beijing, CN
Jiaxiang Wu · Lo Wu, CN
Hanqing Lu · Beijing, CN

Key dates

Filing date	Apr 29, 2014
Grant date	Jun 12, 2018
Priority date	—
Expiry date	Apr 29, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06V10/761
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An image matching method based on cascaded binary encoding includes using a hashing look-up with multiple hashing tables to coarsely filter candidate key-points in an image to produce a candidate subset of key-points, projecting the candidate subset into a high-dimensional Hamming space, and building a “Hamming distance-memory address” hashing table. An optimal matching key-point is discovered by querying the hashing table. The image matching method has high processing speed and matching quality, which can be used for efficient and accurate image matching.

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