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Processor and processing method for generating a panoramic image for a vehicle

  • US 7,782,374 B2
  • Filed: 03/02/2006
  • Issued: 08/24/2010
  • Est. Priority Date: 03/03/2005
  • Status: Active Grant
First Claim
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1. An image processor for a vehicle having a plurality of cameras and a monitor that displays a panoramic image derived from multiple images generated by the plurality of cameras, the image processor comprising:

  • input buffers adapted to receive and store camera image data generated by the plurality of cameras;

    an output buffer adapted to store panoramic image data for display on the monitor;

    a default address conversion table that describes a default correspondence between memory addresses of camera images from an arrangement of cameras assumed to be free of installation errors and memory addresses of a panoramic image generated using the camera images;

    a controller adapted to;

    detect installation errors in the plurality of cameras based on deviations between a template image and a respective camera image obtained while the vehicle is stationary and at a prescribed position, the template image representing the prescribed position and generated assuming the plurality of cameras are free of installation errors;

    prepare a reconfigured address conversion table from the default address conversion table that describes a calibrated correspondence between memory addresses of the respective camera image and memory addresses of a panoramic image generated using the respective camera image to correct for the installation errors;

    read the camera image data stored on the input buffers;

    translate the camera image data into the panoramic image data using the reconfigured address conversion table; and

    store the panoramic image data on the output buffer.

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