MULTI-IMAGING SCANNER FOR READING IMAGES

• US 20100001075A1
• Filed: 07/07/2008
• Published: 01/07/2010
• Est. Priority Date: 07/07/2008
• Status: Abandoned Application

• Current Assignee: Symbol Technologies, Inc. (Zebra Technologies Corporation)
• Original Assignee: Symbol Technologies, Inc. (Zebra Technologies Corporation)
• Inventors: BARKAN, EDWARD
• Application Number:
  US12/168,347
• Publication Number:
  US 20100001075A1
• Time in Patent Office: Days
• US Class Current: 235/462.41
• CPC Class Codes: G06K 7/10722 Photodetector array or CCD scanning
• CPC Class Codes: G06K 7/1096 the scanner having more than one scanning window, e.g. two substantially orthogonally placed scanning windows for integration into a check-out counter of a super-market

Abstract

A multi-camera imaging-based scanner for imaging multiple target objects at substantially the same time and method is provided. The multi-camera imaging-based scanner comprises an image processing system with memory programmed to identify overlapping areas of field-of-views of the multiple cameras with in a scan field, such that if a target object is imaged by more than one camera at substantially the same time in one of the over lapping areas between two or more cameras'"'"' field-of-views, the processing system defines that a single target object has been detected and the decoded information therefrom is processed only once. If multiple target objects are imaged by more than one camera at substantially the same time outside of any of the over lapping areas between two or more cameras'"'"' field-of-views, the processing system defines that multiple target objects have been detected and the decoded information for each target object is processed.

Claims

1. A multi-camera imaging-based scanner for imaging multiple target objects at substantially the same time, the imaging based scanner comprising:

a housing supporting one or more transparent windows and defining an interior region, the housing constructed to accommodate imaging one or more products or packages presented to the scanner having a target object, the scanner imaging packages'"'"' or products'"'"' respective target object at substantially the same time;

an imaging system including a plurality of cameras wherein each camera is positioned within the housing interior region, each camera having a field-of-view that is different than a field-of-view of each other camera of the plurality of cameras, the field-of-views of all the cameras defining a scan field, each camera further comprising a sensor array; and

an image processing system having memory programmed to identify overlapping areas of said field-of-views of said cameras within said scan field, such that if a target object is imaged by more than one camera at substantially the same time in one of said over lapping areas between two or more cameras'"'"' field-of-views, the processing system defines that a single target object has been detected and the decoded information therefrom is processed only once, if multiple target objects are imaged by more than one camera at substantially the same time outside of any of said over lapping areas between two or more cameras'"'"' field-of-views, said processing system defines that multiple target objects have been detected and the decoded information for each target object is processed.

2. The multi-camera imaging-based scanner of claim 1 wherein said processing said decoded information comprises transferring the decoded information to an output of said scanner.

3. The multi-camera imaging-based scanner of claim 2 wherein said output of said scanner is in communication with at least any one of an LED, a speaker, a data port to a host, a display output, and a remote computer.

4. The multi-camera imaging-based scanner of claim 1 wherein said multiple target objects include at least two identical target objects.

5. The multi-camera imaging-based scanner of claim 1 wherein said target object is an image signature or a barcode.

6. The multi-camera imaging-based scanner of claim 1 wherein at least two cameras comprise opposing fields-of-view.

7. The multi-camera imaging-based scanner of claim 1 wherein said plurality of cameras comprise six cameras such that three pairs of said six cameras have opposing field-of-view with respect to each camera in said pair of the three pairs.

8. The multi-camera imaging-based scanner of claim 1 wherein said plurality of cameras are coupled to a single printed circuit board located within said interior of said housing.

9. A method of operating a multi-camera imaging-based scanner for determining the number of target objects to be processed when the scanner is exposed one or more target objects, the method comprising the steps of;

providing an imaging-based scanner, including a housing supporting one or more transparent windows and defining an interior region of said scanner;

positioning multiple cameras having sensor arrays within the housing interior to define different a field-of-view for each of said plurality of cameras, the different field-of-views collectively forming a scan field such that one or more target objects cannot pass through said scan field without being imaged by at least one of said cameras;

providing an image processing system in communication with said scanner having memory programmed to identify overlapping areas of said cameras'"'"' field-of-views within said scan field;

processing only decoded information from a single target object if the single target object is imaged by more than one camera at substantially the same time in one of said over lapping areas between two or more cameras'"'"' field-of-views.

10. The method of claim 9 further comprising the step of processing decoded information for each target object imaged within said scan field at substantially the same time where said target objects are outside of said over lapping areas.

11. The method of claim 9 wherein said step of processing decoded information comprises communicating the data to an output coupled at least any one of an LED, a speaker, a data port to a host, a display output, and a remote computer.

12. The method of claim 10 wherein at least two of said target objects imaged within said scan field at substantially the same time have identical indicium and data content.

13. A multi-camera imaging-based scanner for imaging multiple identical target objects at substantially the same time, the imaging based scanner comprising:

a housing means supporting one or more transparent windows and defining an interior region, the housing means constructed to accommodate imaging one or more products or packages presented to the scanner having a target object, the scanner imaging packages'"'"' or products'"'"' respective target object at substantially the same time;

an imaging means including a plurality of camera wherein each camera is positioned within the housing means interior region, each camera having a field-of-view that is different than a field-of-view of each other camera of the plurality of cameras, said field-of-views of all the cameras defining a scan field, each camera further comprising a sensor means; and

an image processing means having memory means programmed to identify overlapping areas of said field-of-views of said cameras within said scan field, such that if a target object is imaged by more than one camera at substantially the same time in one of said over lapping areas between two or more cameras'"'"' field-of-views, the processing means defines that a single target object has been detected and the decoded information therefrom is processed only once, if multiple identical target objects are imaged by more than one camera at substantially the same time outside of any of said over lapping areas between two or more cameras'"'"' field-of-views, said processing means defines that multiple target objects have been detected and the decoded information for each target object is processed.

14. The multi-camera imaging-based scanner of claim 13 wherein said processing said decoded information comprises transferring the decoded information to an output of said scanner.

15. The multi-camera imaging-based scanner of claim 14 wherein said output of said scanner is in communication with at least any one of an LED, a speaker, a data port to a host, a display output, and a remote computer.

16. The multi-camera imaging-based scanner of claim 14 wherein at least two cameras comprise opposing fields-of-view.

17. The multi-camera imaging-based scanner of claim 14 wherein said plurality of cameras comprise six cameras such that three pairs of said six cameras have opposing field-of-view with respect to each camera in said pair of the three pairs.

18. The multi-camera imaging-based scanner of claim 14 wherein said plurality of cameras are coupled to a single printed circuit board located within said interior of said housing.

19. Computer-readable media having computer-executable instructions for performing a method of operating an imaging-based scanner having multiple cameras for imaging multiple target objects at substantially the same time, the steps of the method comprising:

providing an imaging-based scanner, including a housing supporting one or more transparent windows and defining an interior region of said scanner;

positioning multiple cameras having sensor arrays within the housing interior to define different a field-of-view for each of said plurality of cameras, the different field-of-views collectively forming a scan field such that one or more target objects cannot pass through said scan field without being imaged by at least one of said cameras;

providing an image processing system in communication with said scanner having memory programmed to identify overlapping areas of said cameras'"'"' field-of-views within said scan field;

processing only decoded information from a single target object if the single target object is imaged by more than one camera at substantially the same time in one of said over lapping areas between two or more cameras'"'"' field-of-views.

20. The computer readable medium of claim 19 wherein the instructions further comprise the step of processing decoded information for each target object imaged within said scan field at substantially the same time where said target objects are outside of said over lapping areas and wherein at least two of said target objects imaged within said scan field at substantially the same time have identical indicium and data content.