Road estimation device and method for estimating road
First Claim
1. A road estimation device configured to receive data including a core point from an external object, the core point being assigned along a road and being assigned with attributes for identifying the road, the road estimation device further configured to extract a link pertinent to a road represented by the core point for estimating the road on a map, the road estimation device comprising:
- a map data input device configured to input map data including links having attributes corresponding to the attributes of the core point; and
a processor cooperatively operable with the map data input device, and configured toin a link narrowing down unit, narrow down the links into a candidate link being candidate of the road represented by the core point from the map data, according to the attributes of the link and a shape-relevant attribute of the attributes of the core point, the shape-relevant attribute being relevant to a road shape,wherein the link narrowing down unit is further configured to;
set a search area for the core point;
extract links in the search area; and
narrow down the links into the candidate link according to parallel road information being the shape-relevant attribute.
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Accused Products
Abstract
A road estimation device receives data including a core point being assigned along a road and being assigned with attributes including at least a shape-relevant attribute being relevant to a road shape for identifying the road. A map data input unit inputs map data including links having attributes. A link narrowing down unit sets a search area for the core point in a map and extracts links in the search area from the map data, according to the attributes of the link and the shape-relevant attribute of the core point. The link narrowing down unit further narrows down the extracted links into a candidate link being candidate of the road represented by the core point for estimating the road on a map, according to parallel road information being the shape-relevant attribute.
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Citations
8 Claims
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1. A road estimation device configured to receive data including a core point from an external object, the core point being assigned along a road and being assigned with attributes for identifying the road, the road estimation device further configured to extract a link pertinent to a road represented by the core point for estimating the road on a map, the road estimation device comprising:
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a map data input device configured to input map data including links having attributes corresponding to the attributes of the core point; and a processor cooperatively operable with the map data input device, and configured to in a link narrowing down unit, narrow down the links into a candidate link being candidate of the road represented by the core point from the map data, according to the attributes of the link and a shape-relevant attribute of the attributes of the core point, the shape-relevant attribute being relevant to a road shape, wherein the link narrowing down unit is further configured to; set a search area for the core point; extract links in the search area; and narrow down the links into the candidate link according to parallel road information being the shape-relevant attribute. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for estimating a road, the method comprising:
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receiving data including a core point from an external object, the core point being assigned along a road and being assigned with attributes for identifying the road, the attributes of the core point including at least a shape-relevant attribute being relevant to a road shape; inputting map data including links having attributes; setting a search area in a map for the core point; extracting links, which are located in the search area and pertinent to the road represented by the core point, from the map data; and narrowing down the extracted links into a candidate link, which is candidate of the road represented by the core point, from the map data, according to the attributes of the links and parallel road information being the shape-relevant attribute of the core point.
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Specification