Inclusion of assessment data in millimeter wave concealed object detection systems

• US 8,547,274 B2
• Filed: 12/18/2008
• Issued: 10/01/2013
• Est. Priority Date: 12/18/2007
• Status: Expired due to Fees

• Current Assignee: Microsemi Corporation (Microchip Technology Incorporated)
• Original Assignee: Microsemi Corporation (Microchip Technology Incorporated)
• Inventors: Reinpoldt, Willem H. III
• Primary Examiner(s): Sotomayor, John B
• Application Number:
  US12/338,780
• Publication Number:
  US 20090184861A1
• Time in Patent Office: 1,748 Days
• Field of Search: 342/22, 342/27, 342/179, 250/208.1, 250/221, 250/225, 250/336.1, 250/341.1, 250/341.8, 250/353, 250/363.02
• US Class Current: 342/22
• CPC Class Codes: G01S 13/887 for detection of concealed objects, e.g. contraband or weapons
• CPC Class Codes: G01S 13/89 for mapping or imaging
• CPC Class Codes: G01S 7/411 Identification of targets based on measurements of radar reflectivity G01S7/415 takes precedence

Abstract

A millimeter wave object detection system includes a millimeter wave imager and a data entry device configured to assign assessment information to events where a concealed object is detected by an operator/observer or automated computer program interrogating imagery produced by the millimeter wave imager. A computer is programmed to store assessment data from the data entry device into a database, and statistical operations can be performed upon the database.

Claims

1. A millimeter wave object detection system, comprising:

a millimeter wave imager;

a data entry device configured to assign assessment information to events where a concealed object on an individual is detected in an image produced by the millimeter wave imager from an imaging zone in which that individual is present; and

a database configured to store a plurality of images produced by the millimeter wave imager from the imaging zone and, for each of the plurality of images, corresponding assessment data from said data entry device is assigned where a concealed object is detected on an individual present in the imaging zone.

2. The millimeter wave object detection system according to claim 1, wherein the database comprises a statistical analysis module configured to perform statistical operations on a plurality of assessment data entries.

3. The millimeter wave object detection system according to claim 1, wherein the data entry device comprises an automatic assessment engine configured to provide automatic entry of assessment information when a concealed object is detected in the imagery produced by the millimeter wave imager.

4. The millimeter wave object detection system according to claim 1, wherein the assessment information comprises one or more pre-defined assessment conditions including at least one of firearm, knife, explosive, electronics, currency, drugs, contraband, documents, merchandise, nuisance and other.

5. The millimeter wave object detection system according to claim 1, wherein the data entry device comprises an operator interface configured to receive an identification of an assessment condition corresponding to imagery produced by the millimeter wave imager.

6. The millimeter wave object detection system according to claim 5, wherein the operator interface comprises one or more pre-defined assessment conditions including:

firearm, knife, explosive, electronics, currency, drugs, contraband, documents, merchandise, nuisance and other.

7. The millimeter wave object detection system according to claim 1, wherein the database is configured to store imagery and corresponding assessment data from a plurality of millimeter wave imagers and data entry devices.

8. The millimeter wave object detection system according to claim 7, wherein the plurality of millimeter wave imagers and data entry devices are in different locations.

9. The millimeter wave object detection system according to claim 1, wherein the database is further configured to generate an alarm based on assessment data from two or more assessment data entries.

10. The millimeter wave object detection system according to claim 9, wherein the two or more assessment data entries are received from data entry devices located at different locations.

18. The system of claim 1, wherein each of the plurality images comprises an image produced when a person is present in the imaging zone.

11. A threat assessment apparatus, comprising:

a database configured to receive and store a plurality of assessment data entries produced by one or more millimeter wave imaging systems, each assessment data entry including an image produced from an imaging zone in which an individual is present and corresponding assessment information; and

an assessment module configured to perform statistical operations on the plurality of assessment data entries.

12. The apparatus of claim 11, wherein the database is configured to store imagery and corresponding assessment data from a plurality of millimeter wave imagers and data entry devices.

13. The apparatus of claim 12, wherein the plurality of millimeter wave imagers and data entry devices are in different locations.

14. The apparatus of claim 11, wherein the assessment module is further configured to generate an alarm based on assessment data from two or more assessment data entries.

15. The apparatus of claim 14, wherein the two or more assessment data entries are received from different locations.

16. The apparatus of claim 14, wherein the two or more assessment data entries are received from different locations within a predefined time period.

17. The apparatus of claim 11, wherein the statistical operations comprise one or more of:

analysis of variance (ANOVA), Chi-square significance tests, cluster analysis, content analysis, correlation, descriptive statistics, dichotomous association, discriminant analysis, hypothesis testing, measures of association, multiple regression analysis, hierarchical linear modeling, multivariate analysis of covariance (MANCOVA), T-tests and time-series analysis.

19. The apparatus of claim 11, wherein each of the plurality of assessment data entries comprises an image produced when a person is present in the imaging zone.