Method of walk-through security inspection and system thereof
US10495748B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2019 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Apr 18, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/89
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There are provided a security inspection system comprising ultra-wideband transmitters (104) and receivers (103) and a method of security inspection. The method comprises scanning a walk-through inspection space (200) along with an inspected person passing there through to yield collected data informative of scattered signals in association with respective channels, wherein the ultra-wideband transmitters and receivers are arranged at both sides of the inspection space. The method further comprises dividing the inspection space into a plurality of subspaces such that each voxel in the inspection space belongs to one and only one subspace, providing image reconstruction separately for each subspace of the plurality of the subspaces, wherein image reconstruction for voxels residing in a given subspace is provided using collected data corresponding to a set of channels selected for the given subspace in accordance with predefined rules; and using image reconstruction results to detect a concealed object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.