Vehicle detection apparatus
First Claim
Patent Images
1. A vehicle detection apparatus, comprising:
- a processor configured to perform the following units;
a position detection unit that detects position data including distance information in a real space of each pixel in an image captured by an imaging unit;
a lamp candidate extraction unit that, based on a value of the pixel, extracts a pixel region in the image, as a lamp candidate, the pixel region being likely to correspond to a tail lamp of a vehicle;
a grouping unit that perfoms grouping to make points close to each other in the real space a group based on the distance information in the real space detected by the position detection unit; and
a regrouping unit that perfoms regrouping to make groups which are close within a predetermined distance from each other in the real space a group, whereinthe regrouping unit perfoms the regrouping for the groups which contain the lamp candidate in preference to the groups which do not contain the lamp candidate.
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Abstract
A vehicle detection apparatus includes a lamp candidate extraction unit that extracts a pixel region that may correspond to a tail lamp of a vehicle from pixel regions that an integration processing unit creates by extracting and integrating pixels of an image as a lamp candidate and a grouping unit that regroups groups containing the lamp candidate of the groups generated by grouping position data detected by a position detection unit and then regroups all groups. In the regrouping processing, a threshold used for regrouping groups containing the lamp candidate is set easier for regrouping than a threshold used for subsequently regrouping all groups.
5 Citations
19 Claims
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1. A vehicle detection apparatus, comprising:
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a processor configured to perform the following units; a position detection unit that detects position data including distance information in a real space of each pixel in an image captured by an imaging unit; a lamp candidate extraction unit that, based on a value of the pixel, extracts a pixel region in the image, as a lamp candidate, the pixel region being likely to correspond to a tail lamp of a vehicle; a grouping unit that perfoms grouping to make points close to each other in the real space a group based on the distance information in the real space detected by the position detection unit; and a regrouping unit that perfoms regrouping to make groups which are close within a predetermined distance from each other in the real space a group, wherein the regrouping unit perfoms the regrouping for the groups which contain the lamp candidate in preference to the groups which do not contain the lamp candidate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A vehicle detection apparatus, comprising:
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a processor configured to perform the following units; a position detection unit that detects position data including distance information in the real space of each pixel in an image captured by an imaging unit; a lamp candidate extraction unit that, based on the value of the pixel, extracts a pixel region on the image, as a lamp candidate, the pixel region being likely to correspond to a tail lamp of a vehicle; a grouping unit that perfoms grouping to make points closed to each other in the real space a group based on the distance information in the real space detected by the position detection unit; and a regrouping unit that perfoms regrouping to make the groups which are close within a threshold distance from each other in the real space a group, wherein the regrouping unit sets the threshold distance for peforming the regrouping for the groups which contain the lamp candidate and the threshold distance for peforming the regrouping for the groups which do not contain the lamp candidate, such that the regrouping is performed for the groups which contain the lamp candidate in preference to the groups which do not contain the lamp candidate. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A vehicle detection apparatus, comprising:
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a processor configured to perform the following units; a position detection unit that detects position data including a distance of each pixel in an image captured by an imaging unit; an integration processing unit that extracts the pixels having a brightness equal to or higher than predetermined brightness on the image and, if the extracted pixels are adjacent to each other on the image, integrates the pixels as a same pixel region; a lamp candidate extraction unit that extracts the pixel region that correspond to a tail lamp of a vehicle from among the pixel regions integrated by the integration processing unit as a lamp candidate based on the position data detected by the position detection unit; and a grouping unit that groups position data detected by the position detection unit, determines whether o regroup the generated groups containing the position data belonging to the lamp candidate extracted by the lamp candidate extraction unit, after regrouping the groups determined to be capable of being regrouped, determines whether to regroup all the groups, and then regroups the groups determined to be capable of being regrouped, wherein upon regrouping processing by the grouping unit, a threshold about the position data used for the regrouping of the groups containing the position data belonging to the lamp candidate is set easier for the regrouping than a threshold about the position data for the subsequent regrouping of all the groups.
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Specification