External environment recognizing device for vehicle and light distribution control system using the same
First Claim
1. An external environment recognizing device for vehicle comprising:
- an image acquiring unit comprising a camera configured to acquire an image obtained by picking up an image of an area ahead of an own vehicle;
one or more computers configured with;
a light-source extracting unit configured to extract a light source from the acquired image to determine a position of the light source;
an own-vehicle-speed acquiring unit configured to acquire own vehicle speed;
an oncoming-vehicle-presence-possible-region setting unit configured to estimate an oncoming vehicle presence possible region on the basis of the own vehicle speed; and
an oncoming-vehicle detecting unit configured to detect an oncoming vehicle on the basis of the oncoming vehicle presence possible region estimated by the oncoming-vehicle-presence-possible-region setting unit and the light source extracted by the light-source extracting unit, whereinthe oncoming-vehicle-presence-possible-region setting unit is configured to estimate a minimum turning radius of a traveling road on the basis of the own vehicle speed, a minimum curvature radius of the traveling road corresponding to a speed limit determined in advance, and traffic information indicating whether driving on the traveling road is driving on a right side or driving on a left side and estimate the oncoming vehicle presence possible region on the basis of the estimated minimum turning radius such that certain areas are excluded from the presence possible region based upon whether driving on the traveling road is driving on a right side or driving on a left side and which direction the vehicle is turning.
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Accused Products
Abstract
An external environment recognizing device for vehicle includes an image acquiring unit configured to acquire image obtained by picking up image of an area ahead of an own vehicle, a light-source extracting unit configured to extract light source from the acquired image, an own-vehicle-speed acquiring unit configured to acquire own vehicle speed, an oncoming-vehicle-presence-possible-region estimating unit configured to estimate oncoming vehicle presence possible region on the basis of own vehicle speed, and an oncoming-vehicle detecting unit configured to detect an oncoming vehicle on the basis of the oncoming vehicle presence possible region and the light source. The oncoming-vehicle-presence-possible-region estimating unit estimates oncoming vehicle presence possible region on the basis of the own vehicle speed, a minimum curvature radius of traveling road corresponding to a speed limit determined in advance, and traffic information indicating whether driving on the traveling road is driving on the right side or the left side.
11 Citations
16 Claims
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1. An external environment recognizing device for vehicle comprising:
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an image acquiring unit comprising a camera configured to acquire an image obtained by picking up an image of an area ahead of an own vehicle; one or more computers configured with; a light-source extracting unit configured to extract a light source from the acquired image to determine a position of the light source; an own-vehicle-speed acquiring unit configured to acquire own vehicle speed; an oncoming-vehicle-presence-possible-region setting unit configured to estimate an oncoming vehicle presence possible region on the basis of the own vehicle speed; and an oncoming-vehicle detecting unit configured to detect an oncoming vehicle on the basis of the oncoming vehicle presence possible region estimated by the oncoming-vehicle-presence-possible-region setting unit and the light source extracted by the light-source extracting unit, wherein the oncoming-vehicle-presence-possible-region setting unit is configured to estimate a minimum turning radius of a traveling road on the basis of the own vehicle speed, a minimum curvature radius of the traveling road corresponding to a speed limit determined in advance, and traffic information indicating whether driving on the traveling road is driving on a right side or driving on a left side and estimate the oncoming vehicle presence possible region on the basis of the estimated minimum turning radius such that certain areas are excluded from the presence possible region based upon whether driving on the traveling road is driving on a right side or driving on a left side and which direction the vehicle is turning. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A light distribution control system comprising:
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an external environment recognizing device for vehicle including an image acquiring unit comprising a camera configured to acquire an image obtained by picking up an image of an area ahead of an own vehicle, one or more computers configured with;
a light-source extracting unit configured to extract a light source from the acquired image to determine a position of the light source, an own-vehicle-speed acquiring unit configured to acquire own vehicle speed, an oncoming-vehicle-presence-possible-region setting unit configured to estimate an oncoming vehicle presence possible region on the basis of the own vehicle speed, and an oncoming-vehicle detecting unit configured to detect an oncoming vehicle on the basis of the oncoming vehicle presence possible region estimated by the oncoming-vehicle-presence-possible-region setting unit and the light source extracted by the light-source extracting unit and output information concerning the oncoming vehicle; anda light distribution control device including a beam control unit configured to control irradiation intensity of a headlight, wherein the external environment recognizing device for vehicle includes an oncoming-vehicle-information transmitting unit configured to transmit information concerning the oncoming vehicle output from the oncoming-vehicle detecting unit to the light distribution control device, the oncoming-vehicle-presence-possible-region setting unit is configured to estimate a minimum turning radius of a traveling road on the basis of the own vehicle speed, a minimum curvature radius of the traveling road corresponding to a speed limit determined in advance, and traffic information indicating whether driving on the traveling road is driving on a right side or driving on a left side and estimate the oncoming vehicle presence possible region on the basis of the estimated minimum turning radius such that certain areas are excluded from the presence possible region based upon whether driving on the traveling road is driving on a right side or driving on a left side and which direction the vehicle is turning. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification