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Systems and methods for using visual landmarks in initial navigation

A technology of landmarks and navigation instructions, applied in directions such as navigation, surveying and navigation, road network navigator, etc., can solve the problem that it is difficult for portable devices to determine the operation or heading direction.

Active Publication Date: 2019-06-14
GOOGLE LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the portable device is stationary, it is difficult for the portable device to determine its operation or heading

Method used

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  • Systems and methods for using visual landmarks in initial navigation
  • Systems and methods for using visual landmarks in initial navigation
  • Systems and methods for using visual landmarks in initial navigation

Examples

Experimental program
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Embodiment Construction

[0017] general overview

[0018] For a user en route to a destination, the navigation system of the present disclosure may provide relative navigation instructions, ie instructions based on direction of movement. An example of such a navigation instruction includes "turn left onto Main Street." However, at the beginning of navigation, when the user is stationary and has no direction to move, absolute directions such as "go north onto State Street" may be difficult to use. To generate initial navigation instructions, the navigation system identifies candidate navigational landmarks at the portable device's initial location within 360 degrees of that location. The navigation system then generates initial navigation instructions that refer to one or more of these navigational landmarks without restricting the selection to those navigational landmarks arranged in the initial direction of travel.

[0019] In some cases, the navigation system generates initial navigation instruc...

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PUM

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Abstract

A route from a current location of a portable device to a destination is determined, where the route includes a sequence of directed sections. Navigation instructions to guide a user of the portable device along the route to the destination are generated. To this end, candidate navigation landmarks perceptible within a 360-degree range of the current location of the portable device are identified,a navigation landmark disposed in a direction substantially opposite to the direction of the first one in the sequence of directed sections is selected from among the candidate navigation landmarks,and an initial instruction in the navigation instructions is generated and provided via a user interface of the portable device. The initial instruction references the selected navigation landmark.

Description

technical field [0001] The present disclosure relates to navigation instructions, and in particular to using images in navigation instructions. Background technique [0002] The background description provided herein is for the purpose of generally presenting the context of the disclosure. The work of the presently named inventors described in this Background section, as well as aspects of the description that may not otherwise qualify as prior art at the time of filing, should neither be expressly nor implicitly regarded as relevant to this disclosure. recognized as prior art. [0003] Navigation systems that automatically route drivers, cyclists, and pedestrians between geographic locations typically generate navigation instructions based on the route, using indications of distance, street names, building numbers, and the like. For example, these systems could provide the driver with instructions such as "Go a quarter mile and turn right onto Maple Street." For a user e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/36
CPCG01C21/36G01C21/3629G01C21/3644G01C21/3661G06F3/0488G01C21/3647G06V20/56G06F18/24G01C21/3635G01C21/3664G01C21/3691G06F3/04817G06F3/0482G06T2200/24G06T2215/16G06T7/70
Inventor 约书华·S·史巴克
Owner GOOGLE LLC
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