Method of estimating stride length, method of calculating movement trajectory, and stride length estimating device
First Claim
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1. A method of estimating a stride length, using a navigation apparatus having an acceleration sensor, the method comprising:
- detecting amplitude of acceleration of a user'"'"'s vertical movement;
using the acceleration sensor; and
estimating a stride length using the detected amplitude of acceleration by changing the degree of correlation between the amplitude of acceleration and the stride length, in which the stride length is increased as the detected amplitude of acceleration increases;
wherein the degree of correlation is changed such that, as user'"'"'s speed increases, a rate of change in the stride length with respect to change in the amplitude of acceleration decreases.
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Abstract
A method of estimating a stride length includes: detecting acceleration of a user'"'"'s vertical movement; and estimating a stride length using the detected acceleration by changing the degree of correlation between the acceleration and the stride length, in which the stride length is increased as the detected acceleration increases, based on user'"'"'s speed.
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6 Claims
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1. A method of estimating a stride length, using a navigation apparatus having an acceleration sensor, the method comprising:
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detecting amplitude of acceleration of a user'"'"'s vertical movement;
using the acceleration sensor; andestimating a stride length using the detected amplitude of acceleration by changing the degree of correlation between the amplitude of acceleration and the stride length, in which the stride length is increased as the detected amplitude of acceleration increases;
wherein the degree of correlation is changed such that, as user'"'"'s speed increases, a rate of change in the stride length with respect to change in the amplitude of acceleration decreases. - View Dependent Claims (2, 3, 4, 5)
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6. A stride length estimating device comprising:
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an acceleration detecting unit that detects amplitude of acceleration of a user'"'"'s vertical movement; and a stride length estimating unit that estimates a stride length using the detected amplitude of acceleration by changing the degree of correlation between the acceleration and the stride length, in which, as the acceleration detected by the acceleration detecting unit increases, the stride length is increased, wherein the degree of correlation is changed such that, as user'"'"'s speed increases, a rate of change in the stride length with respect to change in the amplitude of acceleration decreases.
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Specification