Object detection system for vehicle

  • US 7,038,577 B2
  • Filed: 04/30/2003
  • Issued: 05/02/2006
  • Est. Priority Date: 05/03/2002
  • Status: Active Grant
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First Claim
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1. An imaging system for a vehicle comprising:

  • an imaging array sensor comprising a plurality of photo-sensing pixels, said imaging array sensor being positioned at the vehicle and having a field of view exteriorly of the vehicle, said imaging array sensor being operable to capture an image of a scene occuring exteriorly of the vehicle, wherein said imaging system comprises a lane departure warning system with said imaging array being directed forwardly relative to the subject vehicle;

    a control for processing said captured image, said captures image comprising an image data set representative of the exterior scene, said control including a microprocessor comprising an edge detection algorithm, said control applying said edge detection algorithm to a reduced image data set of said image data set, said reduced image data set being representative of a target zone of said captured image, said control being operable to process said reduced image data set more than other image data, which are representative of areas of said captured image outside of said target zone, to detect edges of objects present exteriorly of the vehicle and within said target zone; and

    said lane departure warning system being operable to provide a warning indication to a driver of the subject vehicle in response to at least two conditions detected by said imaging system, wherein said lane departure warning system provides a first warning in response to a detection that the subject vehicle is on course to leave the road surface and travel onto the shoulder of the road and a second warning in response to a detection that the subject vehicle is on course to leave the shoulder and the road surface.

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