Vehicle vision system with front and rear camera integration
First Claim
1. A vehicular control system, said vehicular control system comprising:
- a front camera disposed at a front portion of a vehicle equipped with said vehicular control system;
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;
wherein said front camera comprises a first low-voltage differential signaling (LVDS) serializer;
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;
wherein said rear camera comprises a second LVDS serializer;
an electronic control unit (ECU);
wherein said ECU comprises (i) a first LVDS de-serializer, (ii) a second LVDS de-serializer, (iii) an electrical power source and (iv) an image processor;
wherein said front camera connects with said ECU via a first coaxial cable;
wherein said rear camera connects with said ECU via a second coaxial cable;
wherein image data captured by the imaging sensor of said front camera is converted at said first LVDS serializer to a first image signal and is carried to said ECU via said first coaxial cable;
wherein image data captured by the imaging sensor of said rear camera is converted at said second LVDS serializer to a second image signal and is carried to said ECU via said second coaxial cable;
wherein said first image signal is de-serialized at said first LVDS de-serializer of said ECU;
wherein said second image signal is de-serialized at said second LVDS de-serializer of said ECU; and
wherein at least one selected from the group consisting of;
(i) said image processor of said ECU is operable to process the de-serialized first image signal to detect a vehicle present in the forward field of view of said front camera, and wherein, responsive at least in part to processing at said image processor of the de-serialized first image signal and to determination by said vehicular control system that the equipped vehicle and the detected vehicle may collide, said vehicular control system, at least in part, controls a braking system of the equipped vehicle; and
(ii) said image processor of said ECU is operable to process the de-serialized second image signal to detect objects present in the rearward field of view of said rear camera, and wherein, responsive at least in part to processing at said image processor of the de-serialized second image signal, an object present rearward of the equipped vehicle is detected.
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Abstract
A vehicular control system includes a front camera, a rear camera and an electronic control unit (ECU). The cameras connect with the ECU via respective coaxial cables. Image data captured by the cameras is converted at a respective LVDS serializer to a respective image signal and is carried to the ECU via the respective coaxial cable by LVDS. The image signals are de-serialized at the respective LVDS de-serializer of the ECU. The image processor of the ECU may process a de-serialized image signal to detect a vehicle present in the field of view of the front camera, whereby, responsive to determination that the equipped vehicle and the detected vehicle may collide, the system, at least in part, controls a braking system of the equipped vehicle. The image processor may process a de-serialized image signal to detect objects present in the rearward field of view of the rear camera.
384 Citations
54 Claims
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1. A vehicular control system, said vehicular control system comprising:
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a front camera disposed at a front portion of a vehicle equipped with said vehicular control system; 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; wherein said front camera comprises a first low-voltage differential signaling (LVDS) serializer; 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; wherein said rear camera comprises a second LVDS serializer; an electronic control unit (ECU); wherein said ECU comprises (i) a first LVDS de-serializer, (ii) a second LVDS de-serializer, (iii) an electrical power source and (iv) an image processor; wherein said front camera connects with said ECU via a first coaxial cable; wherein said rear camera connects with said ECU via a second coaxial cable; wherein image data captured by the imaging sensor of said front camera is converted at said first LVDS serializer to a first image signal and is carried to said ECU via said first coaxial cable; wherein image data captured by the imaging sensor of said rear camera is converted at said second LVDS serializer to a second image signal and is carried to said ECU via said second coaxial cable; wherein said first image signal is de-serialized at said first LVDS de-serializer of said ECU; wherein said second image signal is de-serialized at said second LVDS de-serializer of said ECU; and wherein at least one selected from the group consisting of; (i) said image processor of said ECU is operable to process the de-serialized first image signal to detect a vehicle present in the forward field of view of said front camera, and wherein, responsive at least in part to processing at said image processor of the de-serialized first image signal and to determination by said vehicular control system that the equipped vehicle and the detected vehicle may collide, said vehicular control system, at least in part, controls a braking system of the equipped vehicle; and (ii) said image processor of said ECU is operable to process the de-serialized second image signal to detect objects present in the rearward field of view of said rear camera, and wherein, responsive at least in part to processing at said image processor of the de-serialized second image signal, an object present rearward of the equipped vehicle is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A vehicular control system for a vehicle, said vehicular control system comprising:
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a front camera disposed at a front portion of a vehicle equipped with said vehicular control system; wherein the front portion of the equipped vehicle comprises an exterior 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; wherein said front camera comprises a first low-voltage differential signaling (LVDS) serializer; a rear camera disposed at a rear portion of the equipped vehicle; wherein said rear camera comprises a rear backup camera 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; wherein said rear camera comprises a second LVDS serializer; 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; wherein said driver-side camera comprises a third LVDS serializer; 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; wherein said passenger-side camera comprises a fourth LVDS serializer; an electronic control unit (ECU); wherein said ECU comprises (i) a first LVDS de-serializer, (ii) a second LVDS de-serializer, (iii) a third LVDS de-serializer, (iv) a fourth LVDS de-serializer, (v) an electrical power source and (vi) an image processor; wherein said front camera connects with said ECU via a first coaxial cable; wherein said rear camera connects with said ECU via a second coaxial cable; wherein said driver-side camera connects with said ECU via a third coaxial cable; wherein said passenger-side camera connects with said ECU via a fourth coaxial cable; wherein image data captured by the imaging sensor of said front camera is converted at said first LVDS serializer to a first image signal and is carried to said ECU via said first coaxial cable; wherein image data captured by the imaging sensor of said rear camera is converted at said second LVDS serializer to a second image signal and is carried to said ECU via said second coaxial cable; wherein image data captured by the imaging sensor of said driver-side camera is converted at said third LVDS serializer to a third image signal and is carried to said ECU via said third coaxial cable; wherein image data captured by the imaging sensor of said passenger-side camera is converted at said fourth LVDS serializer to a fourth image signal and is carried to said ECU via said fourth coaxial cable; wherein said first image signal is de-serialized at said first LVDS de-serializer of said ECU; wherein said second image signal is de-serialized at said second LVDS de-serializer of said ECU; wherein said third image signal is de-serialized at said third LVDS de-serializer of said ECU; wherein said fourth image signal is de-serialized at said fourth LVDS de-serializer of said ECU; wherein said ECU 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. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A vehicular control system for a vehicle, said vehicular control system comprising:
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a front camera disposed at a front portion of a vehicle equipped with said vehicular control system; wherein the front portion of the equipped vehicle comprises a portion of an in-cabin side of a windshield of the equipped vehicle; wherein said front camera is adapted for attachment at the in-cabin side of the vehicle windshield; wherein, with said front camera attached at the vehicle windshield, an imaging sensor of said front camera views forward through the vehicle windshield and has a forward field of view exterior of the equipped vehicle; said front camera comprising a megapixel array having at least one million photosensors arranged in multiple columns and multiple rows, wherein the imaging sensor of said front camera is operable to capture image data; wherein said front camera comprises a first low-voltage differential signaling (LVDS) serializer; 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; wherein said rear camera comprises a second LVDS serializer; 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; wherein said driver-side camera comprises a third LVDS serializer; 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; wherein said passenger-side camera comprises a fourth low-voltage differential signaling LVDS serializer; an electronic control unit (ECU); wherein said ECU comprises (i) a first LVDS de-serializer, (ii) a second LVDS de-serializer, (iii) a third LVDS de-serializer, (iv) a fourth LVDS de-serializer, (v) an electrical power source and (vi) an image processor; wherein said front camera connects with said ECU via a first coaxial cable; wherein said rear camera connects with said ECU via a second coaxial cable; wherein said driver-side camera connects with said ECU via a third coaxial cable; wherein said passenger-side camera connects with said ECU via a fourth coaxial cable; wherein image data captured by the imaging sensor of said front camera is converted at said first LVDS serializer to a first image signal and is carried to said ECU via said first coaxial cable; wherein image data captured by the imaging sensor of said rear camera is converted at said second LVDS serializer to a second image signal and is carried to said ECU via said second coaxial cable; wherein image data captured by the imaging sensor of said driver-side camera is converted at said third LVDS serializer to a third image signal and is carried to said ECU via said third coaxial cable; wherein image data captured by the imaging sensor of said passenger-side camera is converted at said fourth LVDS serializer to a fourth image signal and is carried to said ECU via said fourth coaxial cable; wherein said first image signal is de-serialized at said first LVDS de-serializer of said ECU; wherein said second image signal is de-serialized at said second LVDS de-serializer of said ECU; wherein said third image signal is de-serialized at said third LVDS de-serializer of said ECU; wherein said fourth image signal is de-serialized at said fourth LVDS de-serializer of said ECU; and wherein, responsive at least in part to processing of image data captured by the imaging sensor of said front camera, said vehicular control system detects an object present in the forward field of view of said front camera. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification