Optically-augmented microwave imaging system and method

• US 7,940,208 B2
• Filed: 07/13/2005
• Issued: 05/10/2011
• Est. Priority Date: 06/08/2004
• Status: Active Grant

• Current Assignee: Agilent Technologies, Inc.
• Original Assignee: Agilent Technologies, Inc.
• Inventors: Baharav, Izhak, Taber, Robert C., Rosner, S. Jeffrey
• Primary Examiner(s): Gregory; Bernarr E
• Application Number:
  US11/180,276
• Publication Number:
  US 20050270220A1
• Time in Patent Office: 2,127 Days
• Field of Search: 382/113, 382/100, 345/619, 342/22, 342 25 R- 25 F, 342 27- 28, 342 52- 59, 342 82-103, 342175-176, 342179-180, 342190-196, 342/365, 324/632, 343/753
• US Class Current: 342/179
• CPC Class Codes: G01N 22/00 Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more G01N3/00 - G01N17/00, G01N24/00 take precedence
• CPC Class Codes: G01S 13/867 Combination of radar systems with cameras
• CPC Class Codes: G01S 13/89 for mapping or imaging

Abstract

An image processor includes an optical processor and a microwave processor. The optical processor is configured to extract optical image information from optical image data provided by a sensor, the optical image data representing an optical image of an object. The microwave image processor is configured to produce microwave image data representing a microwave image of the object in response to the extracted optical image information and microwave measurements provided by a microwave imager based on illuminating the object with microwave radiation.

Claims

1. An image processing system, comprising:

an optical processor configured to extract optical image information from optical image data provided by a sensor, the optical image data representing an optical image of an object; and

a microwave image processor configured to produce microwave image data representing a microwave image of the object in response to the extracted optical image information and microwave measurements provided by a microwave imager based on illuminating the object with microwave radiation.

2. The image processing system of claim 1, wherein said microwave image processor is further operable to identify data points corresponding to spatial regions associated with the object in response to the optical image information, and to solve for the identified data points using the microwave measurements to produce the microwave image data.

3. The image processing system of claim 2, wherein said microwave image processor is further operable in response to the optical image information to cause the microwave radiation to be directed to the spatial regions.

4. The image processing system of claim 1, wherein said microwave image processor is further operable in response to the optical image information to track motion of the object.

5. An imaging processing system, comprising:

a processor for extracting optical image information from optical image data provided by an optical imager, the optical image data representing an optical image of an object, and for producing microwave image data representing a microwave image of the object based on the extracted optical image information and microwave measurements corresponding to the object provided by a microwave imager, which obtains the microwave measurements by illuminating at least a portion of the object with microwave radiation.

6. The system of claim 5, further comprising:

a memory for storing at least the microwave image data.

7. The system of claim 6, further comprising:

a display connected to at least one of the processor and the memory, the display being configured to display the microwave image of the object.

8. The system of claim 6, wherein the memory comprises one of a flash memory or an electronically erasable programmable read-only memory (EEPROM).

9. The system of claim 6, wherein the memory comprises a random access memory.

10. The system of claim 6, wherein the memory stores the optical image information extracted by the processor.

11. The system of claim 10, wherein the memory stores at least one processing parameter used by the processor to extract the optical image information.

12. The system of claim 5, wherein the processor comprises:

an optical image processor configured to extract the optical image information; and

a microwave image processor configured to produce the microwave image data in response to the optical image information received from the optical image processor and the microwave measurements.

13. The system of claim 12, wherein the microwave image processor is further configured to identify data points corresponding to spatial regions associated with the object in response to the optical image information.

14. The system of claim 13, wherein the microwave image processor is further configured to solve for the identified data points using the microwave measurements to produce the microwave image data.

15. The system of claim 14, wherein the microwave image processor is further operable in response to the optical image information to cause the microwave radiation to be directed to the spatial regions.

16. The image processing system of claim 12, wherein the microwave image processor is further operable in response to the optical image information to track motion of the object.

17. An imaging processing system, comprising:

a processor that receives optical image data representing an optical image of an object from an optical imager and receives at least one microwave measurement corresponding to the object from a microwave imager, the processor determining optical image information based on the optical image data and determining microwave image data based on the optical image information and the at least one microwave measurement; and

a memory that stores at least the microwave image data,

wherein the microwave image data represents a microwave image of the object.

18. The system of claim 17, wherein the at least one microwave measurement is obtained by illuminating at least a portion of the object with microwave radiation.

19. The system of claim 18, wherein the processor provides the microwave imager at least one data point corresponding to a spatial region associated with the object based on the optical image information, the portion of the object illuminated with microwave radiation comprising the spatial region.

20. The system of claim 19, wherein the microwave imager comprises a transceiver and an antenna to provide the microwave radiation, wherein the processor controls the transceiver to direct the microwave radiation to the spatial region through the antenna based on the optical image information.