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AssigneeNippon Telegraph and Telephone Corporation
InventorsHideyuki Tsuboi, Hideki Toshinaga, Kazuto Goto, Yushi Shirato, Naoki Kita, Takeshi Onizawa
Estimating the term…
In two-dimensional map information showing communication equipment installation structures on which communication equipment is installed, roads, and buildings, a narrow region between the buildings is detected based on a distance of an interval of the buildings adjacent to each other and a predetermined length and a connection line connecting the buildings is imparted to an opened portion of the detected narrow region, a line-of-sight detection line is extended with any one of the communication equipment installation structures set as a start point and the line-of-sight detection line is rotated around the start point, intersections of the line-of-sight detection line and a contour line of the building or the connection line is detected and the intersection at a shortest distance from the start point among the detected intersections is detected as a line-of-sight intersection, and, when the line-of-sight intersection and another line-of-sight intersection belong to the same building, a line-of-sight range line along the contour line of the building is imparted to between the two line-of-sight intersections.
A line-of-sight detecting method comprising:
A line-of-sight detecting device comprising:
Dependencies are inferred from the claim text.