METHOD FOR IMAGE PROCESSING OF IMAGE DATA RECORDED WITH AN OPTICAL SENSOR IN A MOTOR VEHICLE, AND A MOTOR VEHICLE

• US 20130063597A1
• Filed: 09/06/2012
• Published: 03/14/2013
• Est. Priority Date: 09/13/2011
• Status: Abandoned Application

• Current Assignee: Audi AG (Volkswagen AG)
• Original Assignee: Audi AG (Volkswagen AG)
• Inventors: Wender, Stefan, Mhlisch, Mirko, Kleinsorge, Alexander
• Application Number:
  US13/605,568
• Publication Number:
  US 20130063597A1
• Time in Patent Office: Days
• US Class Current: 348/148
• CPC Class Codes: G06T 2207/10016 Video; Image sequence
• CPC Class Codes: G06T 2207/30252 Vehicle exterior; Vicinity of vehicle
• CPC Class Codes: G06T 7/269 using gradient-based methods
• CPC Class Codes: G08G 1/16 Anti-collision systems road vehicle drive control systems for predicting or avoiding probable or impending collision otherwise than by control of a particular sub-unit B60W30/08
• CPC Class Codes: H04N 19/139 Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
• CPC Class Codes: H04N 19/521 for estimating the reliability of the determined motion vectors or motion vector field, e.g. for smoothing the motion vector field or for correcting motion vectors
• CPC Class Codes: H04N 19/527 Global motion vector estimation

Abstract

In a method for image processing of image data recorded in a motor vehicle with an optical sensor, in particular with a camera, wherein the image data include images sequentially recorded with a defined image recording rate, an optical flux is determined from the image data and useful information is determined from the optical flux by at least one vehicle system, in particular a driver assist system. The optical flux is determined during compression of the image data and/or from flux information determined during the compression of the image data.

Claims

1. A method for image processing of image data comprising sequential images recorded with a defined image recording rate in a motor vehicle using an optical sensor, comprising the steps of:

determining from the image data an optical flux during compression of the image data or from flux information obtained during the compression of the image data, and

determining with at least one vehicle system from the optical flux useful information.

2. The method of claim 1, wherein the obtained flux information is used as input data for initializing a computation method for the optical flux.

3. The method of claim 1, wherein the image data are transmitted via a transmission line and the image data are compressed before being transmitted via the transmission line.

4. The method of claim 3, wherein the compressed image data and motion vectors derived as a result of the compression are transmitted together and read out downstream of the transmission line.

5. The method of claim 1, wherein the image data are compressed using a microchip specifically designed for efficiently performing the compression.

6. The method of claim 1, wherein the image data are compressed using H264 or MJPEG compression.

7. The method of claim 1, wherein the optical sensor comprises a camera.

8. The method of claim 1, wherein the at least one vehicle system comprises a driver assist system.

9. A motor vehicle, comprising:

an optical sensor, and

a device for image processing of image data recorded with the optical sensor, wherein the device for image processing is configured to

determine from the image data an optical flux during compression of the image data or from flux information obtained during the compression of the image data, and

determine with at least one vehicle system from the optical flux useful information.

10. The motor vehicle of claim 9, further comprising

a chip for compressing the image data,

a control device, which performs additional image processing, and

a transmission line for transmitting the compressed image data from the chip to the control device,

wherein the chip, the control device and the transmission line are arranged downstream of the optical sensor.

11. The motor vehicle of claim 9, wherein the optical sensor comprises a camera.