NAVIGATION DEVICE
1 Assignment
0 Petitions
Accused Products
Abstract
A navigation device includes: a map database 5 that holds map data; a location and heading measurement unit 4 that measures the current location and heading of a vehicle; a route calculation unit 12 that, based on the map data read from the map database, calculates a guidance route from the current location measured by the location and heading measurement unit to a destination; a camera 7 that captures video images ahead of the vehicle; a video image acquisition unit 8 that acquires the video images ahead of the vehicle captured by the camera; a side road acquisition unit 16 that acquires a side road connected at a location between the current location on the guidance route calculated by the route calculation unit and a guidance waypoint; a video image composition processing unit 14 that composes a picture representing the side road acquired by the side road acquisition unit onto the video images acquired by the video image acquisition unit; and a display unit 10 that displays the video image composed by the video image composition processing unit in a superimposing manner.
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Citations
12 Claims
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1-7. -7. (canceled)
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8. A navigation device, comprising:
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a map database that holds map data; a location and heading measurement unit that measures a current location and heading of a vehicle; a route calculation unit that, based on the map data read from the map database, calculates a guidance route from the current location measured by the location and heading measurement unit to a destination; a camera that captures a video image ahead of the vehicle; a video image acquisition unit that acquires the video image ahead of the vehicle that is captured by the camera; an intersection acquisition unit that acquires an intersection existing between a current location of the guidance route calculated by the route calculation unit and a guidance waypoint; a video image composition processing unit that composes a picture representing the presence of a side road onto the video image acquired by the video image acquisition unit at an intersection acquired by the intersection acquisition unit in a superimposing manner without being overlapped onto a building; and a display unit that displays the video image composed by the video image composition processing unit. - View Dependent Claims (9, 11)
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10. A navigation device, comprising:
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a map database that holds map data; a location and heading measurement unit that measures a current location and heading of a vehicle; a route calculation unit that, based on the map data read from the map database, calculates a guidance route from the current location measured by the location and heading measurement unit to a destination; a camera that captures a video image ahead of the vehicle; a video image acquisition unit that acquires the video image ahead of the vehicle that is captured by the camera; a landmark acquisition unit that acquires a landmark existing around an intersection that is present between a current location of the guidance route calculated by the route calculation unit and a guidance waypoint; a video image composition processing unit that composes a picture of the landmark acquired by the landmark acquisition unit onto the video image acquired by the video image acquisition unit in a superimposing manner; and a display unit that displays the video image composed by the video image composition processing unit. - View Dependent Claims (12)
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Specification