Obscuring identification information in an image of a vehicle

• US 8,823,798 B2
• Filed: 12/23/2011
• Issued: 09/02/2014
• Est. Priority Date: 12/23/2011
• Status: Active Grant

• Current Assignee: Conduent Business Services, LLC (Conduent, Inc.)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: Bernal, Edgar A.
• Primary Examiner(s): JONES, HEATHER RAE
• Application Number:
  US13/336,850
• Publication Number:
  US 20130162817A1
• Time in Patent Office: 984 Days
• Field of Search: None
• US Class Current: 348/149
• CPC Class Codes: G06T 11/00 2D [Two Dimensional] image generation
• CPC Class Codes: G06V 20/52 Surveillance or monitoring of activities, e.g. for recognising suspicious objects recognising microscopic objects G06V20/69
• CPC Class Codes: G06V 20/56 exterior to a vehicle by using sensors mounted on the vehicle
• CPC Class Codes: G06V 20/62 Text, e.g. of license plates, overlay texts or captions on TV images
• CPC Class Codes: G06V 40/161 Detection; Localisation; Normalisation

Abstract

What is disclosed is a system and method for processing an image to obscure information which can be used for identification purposes. In one embodiment, an image is received as part of a traffic enforcement activity. A motor vehicle in the image has a visibly discernible license plate. The vehicle'"'"'s license plate is first isolated in the image. Content in the image which can be used for identification purposes is thereafter identified. The identified content is compared to the license plate. Any content in the image which is different than the license plate is obscured by, for instance, pixelating the content in the image, introducing a distortion into the image at a location of the content, replacing content with other content, or by blurring the content of the image. The modified image containing the obscured content is then provided to an image output device for rendering. Various embodiments are disclosed.

Claims

1. A method for processing an image to obscure information which can be used for identification purposes, the method comprising:

receiving an image containing at least a motor vehicle driven by a driver, said image being captured in response to a traffic violation having occurred;

isolating a license plate of said motor vehicle in said image;

isolating said driver of said motor vehicle in said image;

identifying other content in said image which is not said isolated license plate and which is not said isolated driver that can be used for identification purposes of third parties in said image;

obscuring said identified other content in said image which is different than said isolated license plate and said isolated driver to obtain a modified image; and

outputting said modified image to an image output device.

2. The method of claim 1, wherein identifying content in said image which can be used for identification purposes comprises any of:

a face detection algorithm, a license plate detection algorithm, and a text detection algorithm.

3. The method of claim 1, wherein obscuring content comprises any of:

blurring said content using one of;

a Gaussian, Butterworth, and weighted averaging blur filter;

pixelating said content in said image;

extracting said content from said image;

introducing a distortion into said image at a location of said content; and

replacing said content with other content.

4. The method of claim 1, wherein said content comprises any of:

names, addresses, phone numbers, account numbers, email addresses, an image of a person, a likeness of a person, and other license plate numbers.

5. The method of claim 1, wherein outputting said modified image to said image output device comprises providing said modified image to any of:

a color marking device a display device, a fax machine, a workstation, a storage device, a cellular device, and a remote device over a network.

6. A system for processing an image to obscure information which can be used for identification purposes, the system comprising:

a camera system; and

a processor in communication with said camera system and a memory, said processor executing machine readable instructions for performing;

receiving an image containing at least a motor vehicle, said image being captured by said camera system in response to a traffic violation having occurred;

isolating a license plate of said motor vehicle in said image;

isolating said driver of said motor vehicle in said image;

identifying other content in said image which is not said isolated license plate and which is not said isolated driver that can be used for identification purposes of third parties in said image;

obscuring said identified other content in said image which is different than said isolated license plate and said isolated driver to obtain a modified image; and

outputting said modified image to an image output device.

7. The system of claim 6, wherein identifying content in said image which can be used for identification purposes comprises any of:

a face detection algorithm, a license plate detection algorithm, and a text extraction algorithm.

8. The system of claim 6, wherein obscuring content comprises any of:

blurring said content using one of;

a Gaussian, Butterworth, and weighted averaging blur filter;

pixelating said content in said image;

extracting said content from said image;

introducing a distortion into said image at a location of said content; and

replacing said content with other content.

9. The system of claim 6, wherein said content comprises any of:

names, addresses, phone numbers, account numbers, email addresses, an image of a person, a likeness of a person, and other license plate numbers.

10. The system of claim 6, wherein outputting said modified image to said image output device comprises providing said modified image to any of:

a color marking device a display device, a fax machine, a workstation, a storage device, a cellular device, and a remote device over a network.

11. A computer implemented method for processing an image to obscure information which can be used for identification purposes, the method comprising:

receiving an image containing at least a motor vehicle driven by a driver, said image being captured in response to a traffic violation having occurred;

isolating a license plate of said motor vehicle in said image;

isolating said driver of said motor vehicle in said image;

identifying other content in said image which is not said isolated license plate and which is not said isolated driver that can be used for identification purposes of third parties in said image;

obscuring said identified other content in said image which is different than said isolated license plate and said isolated driver to obtain a modified image; and

outputting said modified image to an image output device.

12. The computer implemented method of claim 11, wherein identifying content in said image which can be used for identification purposes comprises any of:

a face detection algorithm, a license plate detection algorithm, and a text detection algorithm.

13. The computer implemented method of claim 11, wherein obscuring content comprises any of:

blurring said content using one of;

a Gaussian, Butterworth, and weighted averaging blur filter;

pixelating said content in said image;

extracting said content from said image;

introducing a distortion into said image at a location of said content; and

replacing said content with other content.

14. The computer implemented method of claim 11, wherein said content comprises any of:

names, addresses, phone numbers, account numbers, email addresses, an image of a person, a likeness of a person, and other license plate numbers.

15. The computer implemented method of claim 11, wherein outputting said modified image to said image output device comprises providing said modified image to any of:

a color marking device a display device, a fax machine, a workstation, a storage device, a cellular device, and a remote device over a network.