Systems and methods for improving directed people screening

• US 8,199,996 B2
• Filed: 06/20/2008
• Issued: 06/12/2012
• Est. Priority Date: 06/21/2007
• Status: Active Grant

• Current Assignee: Rapiscan Systems Incorporated (OSI Systems Incorporated)
• Original Assignee: Rapiscan Systems Incorporated (OSI Systems Incorporated)
• Inventors: Hughes, Ronald J.
• Primary Examiner(s): Ho, Allen C.
• Application Number:
  US12/142,978
• Publication Number:
  US 20100034451A1
• Time in Patent Office: 1,453 Days
• Field of Search: 378/57, 378/87, 378/88, 378/89, 378/90, 382/131, 382/132
• US Class Current: 382/132
• CPC Class Codes: G01V 5/222 measuring scattered radiation

Abstract

The present invention is a system and method for screening subjects at security locations while preserving the privacy of subjects and retaining the efficiency and thus, throughput, of the screening process. More specifically, the present invention is an improved X-ray detection system and method that allows for maximum threat detection performance with improved verbal and visual communication between the screening and imaging system operator and an image analyst, either proximally or remotely located, thus allowing for an accurate, directed physical search and minimal “pat-down” of subjects under inspection.

Claims

1. A method for improving communication efficiency in an imaging system for inspecting a human body comprising:

creating at least one first image of said human body using said imaging system, wherein said first image is a generic representation of the human body;

displaying said at least one first image of said human body on a first display;

receiving data indicative of a plurality of physical dimensions of the human body, wherein said data is generated by measuring at least one height point, at least one left point, and at least one right point of the human body;

identifying at least one region of interest of said at least one first image that requires further inspection;

repositioning said at least one region of interest with respect to said at least one first image based on said data;

creating at least one second image wherein said at least one second image is a visual representation of said at least one region of interest of said at least one first image that requires further inspection; and

displaying said at least one second image on a second display.

2. The method of claim 1 wherein the at least one second image comprises a modified at least one first image.

3. The method of claim 2 wherein the at least one first image is modified to improve inspection efficiency.

4. The method of claim 2 wherein the at least one first image is modified to preserve privacy of the human subject.

5. The method of claim 1 wherein the first display is located at an inspector station for viewing by an image analyst and the second display is located at the imaging system for viewing by a screening system operator.

6. The method of claim 5 wherein the image analyst uses the first display to communicate scan information to the screening system operator at the second display.

7. The method of claim 6 wherein the image analyst communicates perceived threat information to the screening system operator by annotating a region of interest on said at least one first image.

8. The method of claim 7 wherein said annotations comprise a suitable indicator for communicating a perceived threat region of interest.

9. The method of claim 7 wherein said annotations on the region of interest on said at least one first image can be adjusted by using a software algorithm and subsequently displayed on said at least one second image.

10. The method of claim 7 wherein said annotations on the region of interest on said at least one first image can be manually adjusted by the image analyst and subsequently displayed on said at least one second image.

11. The method of claim 1 wherein the at least one first image is modified to enhance scan information available at said first display.

12. A method for improving communication efficiency in an imaging system for inspecting a human body comprising:

positioning said human body in an imaging area;

operating an X-ray tube to produce a pencil beam of X-rays toward said imaging area;

scanning said pencil beam of X-rays over said imaging area at a sufficiently high rate, wherein said pencil beam is of a sufficiently low dosage;

detecting X-rays that are backscattered from said pencil beam as a result of interacting with matter positioned in said imaging area;

creating at least one first image of said human body using said imaging system, wherein said at least one first image is a generic representation of the human body;

displaying said at least one first image of said human body on a first display;

receiving data indicative of a plurality of physical dimensions of the human body, wherein said data is generated by measuring at least one height point, at least one left point, and at least one right point of the human body;

identifying at least one area of said at least one first image that requires further inspection;

repositioning said at least one area with respect to said at least one first image based on said data;

creating at least one second image wherein said at least one second image is a visual representation of said at least one area of said at least one first image that requires further inspection; and

displaying said at least one second image on a second display.