Patent · US Active

Small object detection from a large image

US10621725B2 · kind B2 · utility

4Cited by

5References

17Claims

0Family size

Assignee

HERE GLOBAL B.V. · NL

Inventors

Xiaochuan Fan · Mountain View, US
Zibo Meng · Palo Alto, US

Key dates

Filing date	Apr 12, 2017
Grant date	Apr 14, 2020
Priority date	—
Expiry date	Jun 24, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/20084
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Embodiments include apparatus and methods for training and/or using a convolutional neural network. An image pyramid is calculated from an original image including at least one object of interest. The image pyramid includes a first image under analysis and a second image under analysis. Image patches are calculated at a first predetermined size relative to the first image under analysis and a second plurality of image patches having a second predetermined size relative to the second image under analysis. The convolutional neural network is trained using the image patches and subsequent images are analyzed by the convolutional neural network using similar image patches.

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