Vision system for vehicle

  • US 10,640,040 B2
  • Filed: 09/10/2018
  • Issued: 05/05/2020
  • Est. Priority Date: 11/28/2011
  • Status: Active Grant
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First Claim
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1. A vehicular vision system, said vehicular vision system comprising:

  • a plurality of cameras disposed at a vehicle equipped with said vehicular vision system, each having a respective field of view exterior of the vehicle;

    said plurality of cameras comprising a front camera disposed at a front portion of the equipped vehicle, said front camera comprising an imaging sensor comprising an array of a plurality of photosensor elements arranged in multiple columns and multiple rows, the imaging sensor of said front camera having a forward field of view exterior of the equipped vehicle and operable to capture image data;

    said plurality of cameras comprising a rear camera disposed at a rear portion of the equipped vehicle, said rear camera comprising an imaging sensor comprising an array of a plurality of photosensor elements arranged in multiple columns and multiple rows, the imaging sensor of said rear camera having a rearward field of view exterior of the equipped vehicle and operable to capture image data;

    said plurality of cameras comprising a driver-side camera disposed at a driver-side portion of the equipped vehicle, said driver-side camera comprising an imaging sensor comprising an array of a plurality of photosensor elements arranged in multiple columns and multiple rows, the imaging sensor of said driver-side camera having a sideward field of view exterior of the equipped vehicle and operable to capture image data;

    said plurality of cameras comprising a passenger-side camera disposed at a passenger-side portion of the equipped vehicle, said passenger-side camera comprising an imaging sensor comprising an array of a plurality of photosensor elements arranged in multiple columns and multiple rows, the imaging sensor of said passenger-side camera having a sideward field of view exterior of the equipped vehicle and operable to capture image data;

    a central video/image processor;

    wherein said front camera connects with said central video/image processor via a first mono coaxial cable;

    wherein said rear camera connects with said central video/image processor via a second mono coaxial cable;

    wherein said driver-side camera connects with said central video/image processor via a third mono coaxial cable;

    wherein said passenger-side camera connects with said central video/image processor via a fourth mono coaxial cable;

    wherein image data captured by the imaging sensor of said front camera is carried as captured to said central video/image processor via said first mono coaxial cable as a Low Voltage Differential Signal (LVDS);

    wherein image data captured by the imaging sensor of said rear camera is carried as captured to said central video/image processor via said second mono coaxial cable as an LVDS;

    wherein image data captured by the imaging sensor of said driver-side camera is carried as captured to said central video/image processor via said third mono coaxial cable as an LVDS;

    wherein image data captured by the imaging sensor of said passenger-side camera is carried as captured to said central video/image processor via said fourth mono coaxial cable as an LVDS;

    wherein said first mono coaxial cable functions as a bidirectional channel carrying control data from said central video/image processor to said front camera and carrying image data captured by the imaging sensor of said front camera from said front camera to said central video/image processor;

    wherein said second mono coaxial cable functions as a bidirectional channel carrying control data from said central video/image processor to said rear camera and carrying image data captured by the imaging sensor of said rear camera from said rear camera to said central video/image processor;

    wherein said third mono coaxial cable functions as a bidirectional channel carrying control data from said central video/image processor to said driver-side camera and carrying image data captured by the imaging sensor of said driver-side camera from said driver-side camera to said central video/image processor;

    wherein said fourth mono coaxial cable functions as a bidirectional channel carrying control data from said central video/image processor to said passenger-side camera and carrying image data captured by the imaging sensor of said passenger-side camera from said passenger-side camera to said central video/image processor;

    wherein said central video/image processor generates an output provided to a video display device of the equipped vehicle, said video display device comprising a video display screen viewable by a driver of the equipped vehicle;

    wherein said video display screen is operable to display a birds-eye view of an area around the equipped vehicle; and

    wherein the birds-eye view of the area around the equipped vehicle is derived, at least in part, from image data captured by the imaging sensors of (i) said front camera, (ii) said rear camera, (iii) said driver-side camera and (iv) said passenger-side camera.

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