Vehicular multi-camera vision system
First Claim
1. A vision system of a vehicle, said vision system comprising:
- a plurality of cameras disposed at a vehicle and having respective fields of view exterior of the vehicle;
wherein said plurality of cameras comprises a forward viewing camera having at least a forward field of view forward of the vehicle, a rearward viewing camera having at least a rearward field of view rearward of the vehicle, a driver-side sideward viewing camera having at least a sideward field of view at the driver side of the vehicle and a passenger-side sideward viewing camera having at least a sideward field of view at the passenger side of the vehicle;
an image processing system operable to process image data captured by said plurality of cameras;
wherein, responsive to processing of captured image data, said vision system is operable to synthesize a composite image derived from image data captured by said plurality of cameras;
wherein one of said plurality of cameras functions as a master camera and other cameras of said plurality of cameras function as slave cameras, and wherein said vision system, responsive to processing of image data captured by the master camera, determines operating parameters for the master camera;
wherein the determined operating parameters for the master camera are used by the other cameras of said plurality of cameras;
wherein said cameras capture image data for a bird'"'"'s-eye view display system of the vehicle;
wherein each of said cameras is connected via network connection to a vehicle network, and wherein the vehicle network is selected from the group consisting of (i) a CAN bus, (ii) a LIN bus, (iii) an Ethernet bus, (iv) a wireless network and (v) a UART connection;
wherein topology of said network connection comprises star topology or daisy chain topology;
wherein a network hub routes commands from the master camera to the slave cameras;
wherein said network hub is part of one of (i) a multi-camera electronic control unit, (ii) a vehicle electronic control unit and (iii) the master camera; and
wherein, during a reversing maneuver of the vehicle, said vision system selects the rearward viewing camera as the master camera, and wherein, during a forward driving maneuver of the vehicle, said vision system selects the forward viewing camera as the master camera.
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Accused Products
Abstract
A vision system of a vehicle includes a plurality of cameras disposed at the vehicle and having respective fields of view exterior of the vehicle. An image processing system is operable to process image data captured by the cameras. Responsive to processing of captured image data, the vision system is operable to generate a composite image derived from image data captured by at least two cameras of the plurality of cameras. One of the plurality of cameras functions as a master camera and the vision system, responsive to processing image data captured by the master camera, determines operating parameters for the master camera. The determined operating parameters for the master camera are used by the other cameras of the plurality of cameras.
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Citations
19 Claims
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1. A vision system of a vehicle, said vision system comprising:
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a plurality of cameras disposed at a vehicle and having respective fields of view exterior of the vehicle; wherein said plurality of cameras comprises a forward viewing camera having at least a forward field of view forward of the vehicle, a rearward viewing camera having at least a rearward field of view rearward of the vehicle, a driver-side sideward viewing camera having at least a sideward field of view at the driver side of the vehicle and a passenger-side sideward viewing camera having at least a sideward field of view at the passenger side of the vehicle; an image processing system operable to process image data captured by said plurality of cameras; wherein, responsive to processing of captured image data, said vision system is operable to synthesize a composite image derived from image data captured by said plurality of cameras; wherein one of said plurality of cameras functions as a master camera and other cameras of said plurality of cameras function as slave cameras, and wherein said vision system, responsive to processing of image data captured by the master camera, determines operating parameters for the master camera; wherein the determined operating parameters for the master camera are used by the other cameras of said plurality of cameras; wherein said cameras capture image data for a bird'"'"'s-eye view display system of the vehicle; wherein each of said cameras is connected via network connection to a vehicle network, and wherein the vehicle network is selected from the group consisting of (i) a CAN bus, (ii) a LIN bus, (iii) an Ethernet bus, (iv) a wireless network and (v) a UART connection; wherein topology of said network connection comprises star topology or daisy chain topology; wherein a network hub routes commands from the master camera to the slave cameras; wherein said network hub is part of one of (i) a multi-camera electronic control unit, (ii) a vehicle electronic control unit and (iii) the master camera; and wherein, during a reversing maneuver of the vehicle, said vision system selects the rearward viewing camera as the master camera, and wherein, during a forward driving maneuver of the vehicle, said vision system selects the forward viewing camera as the master camera. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A vision system of a vehicle, said vision system comprising:
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a plurality of cameras disposed at a vehicle and having respective fields of view exterior of the vehicle; wherein said plurality of cameras each comprise a two dimensional CMOS imaging array having a plurality of photosensing pixels; wherein said plurality of cameras comprises at least a forward viewing camera having at least a forward field of view forward of the vehicle, a rearward viewing camera having at least a rearward field of view rearward of the vehicle, a driver side sideward viewing camera having at least a sideward field of view at the driver side of the vehicle and a passenger side sideward viewing camera having at least a sideward field of view at the passenger side of the vehicle; an image processing system operable to process image data captured by said plurality of cameras; wherein, responsive to processing of captured image data, said vision system is operable to synthesize a composite image derived from image data captured by at least two cameras of said plurality of cameras; wherein one of said plurality of cameras functions as a master camera and other cameras of said plurality of cameras function as slave cameras, and wherein said vision system, responsive to processing of image data captured by the master camera, determines operating parameters for the master camera; wherein the determined operating parameters for the master camera are used by the other cameras of said plurality of cameras; wherein said cameras capture image data for a bird'"'"'s-eye view display system of the vehicle; wherein each of said cameras is connected via network connection to a vehicle network, and wherein the vehicle network is selected from the group consisting of (i) a CAN bus, (ii) a LIN bus, (iii) an Ethernet bus, (iv) a wireless network and (v) a UART connection; wherein topology of said network connection comprises star topology or daisy chain topology; wherein a network hub routes commands from the master camera to the slave cameras; wherein said network hub is part of one of (i) a multi-camera electronic control unit, (ii) a vehicle electronic control unit and (iii) the master camera; and wherein, during a reversing maneuver of the vehicle, said vision system selects the rearward viewing camera as the master camera, and wherein, during a forward driving maneuver of the vehicle, said vision system selects the forward viewing camera as the master camera. - View Dependent Claims (13, 14, 15, 16)
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17. A vision system of a vehicle, said vision system comprising:
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a plurality of cameras disposed at a vehicle and having respective fields of view exterior of the vehicle; wherein said plurality of cameras each comprise a two dimensional CMOS imaging array having a plurality of photosensing pixels; wherein said plurality of cameras comprises at least a forward viewing camera having at least a forward field of view forward of the vehicle, a rearward viewing camera having at least a rearward field of view rearward of the vehicle, a driver side sideward viewing camera having at least a sideward field of view at the driver side of the vehicle and a passenger side sideward viewing camera having at least a sideward field of view at the passenger side of the vehicle; an image processing system operable to process image data captured by said plurality of cameras; wherein, responsive to processing of captured image data, said vision system is operable to synthesize a composite image derived from image data captured by said plurality of cameras; wherein the composite image comprises a bird'"'"'s eye view image; wherein one of said plurality of cameras functions as a master camera and other cameras of said plurality of cameras function as slave cameras, and wherein said vision system, responsive to processing of image data captured by the master camera, determines operating parameters for the master camera; wherein said vision system is operable to communicate the determined operating parameters to the other cameras; wherein the determined operating parameters for the master camera are communicated over a vehicle network to the slave cameras; and wherein the determined operating parameters for the master camera are used by the slave cameras; wherein said cameras capture image data for a bird'"'"'s-eye view display system of the vehicle; wherein each of said cameras is connected via network connection to the vehicle network, and wherein the vehicle network is selected from the group consisting of (i) a CAN bus, (ii) a LIN bus, (iii) an Ethernet bus, (iv) a wireless network and (v) a UART connection; wherein topology of said network connection comprises star topology or daisy chain topology; wherein a network hub routes commands from the master camera to the slave cameras; wherein said network hub is part of one of (i) a multi-camera electronic control unit, (ii) a vehicle electronic control unit and (iii) the master camera; and wherein, during a reversing maneuver of the vehicle, said vision system selects the rearward viewing camera as the master camera, and wherein, during a forward driving maneuver of the vehicle, said vision system selects the forward viewing camera as the master camera. - View Dependent Claims (18, 19)
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Specification