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THREE-DIMENSIONAL OBJECT DETECTION DEVICE

  • US 20150009292A1
  • Filed: 02/26/2013
  • Published: 01/08/2015
  • Est. Priority Date: 03/01/2012
  • Status: Active Grant
First Claim
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1. A three-dimensional object detection device comprising:

  • an image capturing unit arranged to capture images of a predetermined area relative to an adjacent lane rearward of a host vehicle equipped with the three-dimensional object detection device;

    an image conversion unit programmed to convert a viewpoint of the images obtained by the image capturing unit to create bird'"'"'s-eye view images;

    a three-dimensional object detection unit programmed to detect a presence of a three-dimensional object within the adjacent lane in which the bird'"'"'s-eye view images obtained at different times by the image conversion unit are aligned, and based on difference waveform information is generated by counting and creating a frequency distribution of a number of pixels that indicate a difference having a predetermined first threshold value or higher in a difference image of the bird'"'"'s-eye view images that were aligned to detect the presence of the three-dimensional object within the adjacent lane upon determining the difference waveform information is at a predetermined second threshold value or higher; and

    a light source detection unit programmed to detect a light source present rearward of the host vehicle based on the images obtained by the image capturing unit,the three-dimensional object detection unit setting at least one of the first and second threshold values lower so that the three-dimensional object is more readily detected in a rearward area than a forward area with respect to a line connecting the light source and the image capturing unit in the predetermined area.

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