Hidden point detection and warning method and apparatus for navigation system
First Claim
1. A method for displaying a route on a three-dimensional map image for a navigation system, comprising the following steps of:
- displaying a three-dimensional map image which includes an image of a route on which a user or user'"'"'s vehicle is travelling;
detecting a hidden point of the route on the three-dimensional map image at which the route becomes invisible by an obstruction object when viewed from a current position of the user; and
notifying the user about the hidden point on the route thereby enabling the user to know the hidden point on the route in advance;
wherein said step of notifying the user about the hidden point includes a step of displaying a text message regarding a distance and time to the hidden point from the current position.
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Abstract
A method and apparatus for a navigation system detects a hidden point on a route on a monitor screen showing a three-dimensional map when visibility of the route begins to be lost, and provides a warning message including relevant information that is helpful to navigate the hidden point. The method includes steps of displaying a three-dimensional map image which includes an image of a route on which a user or user'"'"'s vehicle is travelling, detecting a hidden point of the route on the three-dimensional map image at which the route becomes invisible by an obstruction object when viewed from a current position of the user, and notifying the user about the hidden point on the route thereby enabling the user to know the hidden point on the route in advance.
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Citations
20 Claims
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1. A method for displaying a route on a three-dimensional map image for a navigation system, comprising the following steps of:
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displaying a three-dimensional map image which includes an image of a route on which a user or user'"'"'s vehicle is travelling; detecting a hidden point of the route on the three-dimensional map image at which the route becomes invisible by an obstruction object when viewed from a current position of the user; and notifying the user about the hidden point on the route thereby enabling the user to know the hidden point on the route in advance; wherein said step of notifying the user about the hidden point includes a step of displaying a text message regarding a distance and time to the hidden point from the current position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for displaying a route on a three-dimensional map image for a navigation system, comprising:
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means for displaying a three-dimensional map image which includes an image of a route on which a user or user'"'"'s vehicle is travelling; means for detecting a hidden point of the route on the three-dimensional map image at which the route becomes invisible by an obstruction object when viewed from a current position of the user; and means for notifying the user about the hidden point on the route thereby enabling the user to know the hidden point on the route in advance; wherein said means for notifying the user about the hidden point includes means for displaying a text message regarding a distance and time to the hidden point from the current position. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification