Moving body position estimating device, moving body position estimating method, and non-transitory recording medium
First Claim
1. A moving body position estimating device, comprising:
- a memory; and
processing circuitry configured to;
acquire information including first data and second data, the first data relating to a first image, the second data relating to a second image, the second image including a difference from the first image accompanying a movement of a moving body, the first image including a first region and a second region;
estimate, based on the information, a direction of a rotation accompanying the movement; and
detect, based on the direction of the rotation, a plurality of first feature points inside the first region and a plurality of second feature points inside the second region, a first density of the first feature points inside the first region being higher than a second density of the second feature points inside the second region, whereinthe direction of the rotation is a first direction, anda second direction from the second region toward the first region has a component in a reverse direction of the first direction.
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Abstract
A moving body position estimating device includes an acquisition unit and a processor. The acquisition unit acquires information including first data relating to a first image and second data relating to a second image including a difference between the first image and the second image accompanying a movement of a moving body. The processor implements estimating, based on the information, a direction of a rotation accompanying the movement; detecting, based on the direction of the rotation, first feature points inside a first region inside the first image and second feature points inside a second region inside the first image; and determining first corresponding points inside a third region inside the second image and estimating a change of a position of the moving body based on each of the first feature points and each of the first corresponding points.
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Citations
20 Claims
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1. A moving body position estimating device, comprising:
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a memory; and processing circuitry configured to; acquire information including first data and second data, the first data relating to a first image, the second data relating to a second image, the second image including a difference from the first image accompanying a movement of a moving body, the first image including a first region and a second region; estimate, based on the information, a direction of a rotation accompanying the movement; and detect, based on the direction of the rotation, a plurality of first feature points inside the first region and a plurality of second feature points inside the second region, a first density of the first feature points inside the first region being higher than a second density of the second feature points inside the second region, wherein the direction of the rotation is a first direction, and a second direction from the second region toward the first region has a component in a reverse direction of the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A moving body position estimating device, comprising:
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a memory; and processing circuitry configured to; acquire information including first data and second data, the first data relating to a first image, the second data relating to a second image, the second image including a difference from the first image accompanying a movement of a moving body; estimate, based on the information, a direction of a change of a position of the moving body accompanying the movement; and detect, based on the direction of the change of the position, a plurality of first feature points inside a first region inside the first image and a plurality of second feature points inside a second region inside the first image, a first density of the first feature points inside the first region being higher than a second density of the second feature points inside the second region. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A moving body position estimating method, comprising:
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acquiring information including first data and second data, the first data relating to a first image, the second data relating to a second image, the second image including a difference from the first image accompanying a movement of a moving body; estimating, based on the information, a direction of a rotation accompanying the movement; and detecting, based on the direction of the rotation, a plurality of first feature points inside a first region inside the first image and a plurality of second feature points inside a second region inside the first image, a first density of the first feature points inside the first region being higher than a second density of the second feature points inside the second region.
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20. A non-transitory recording medium storing a moving body position estimating program which, when executed, causes a computer to execute:
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acquiring information including first data and second data, the first data relating to a first image, the second data relating to a second image, the second image including a difference from the first image accompanying a movement of a moving body; estimating, based on the information, a direction of a rotation accompanying the movement; and detecting, based on the direction of the rotation, a plurality of first feature points inside a first region inside the first image and a plurality of second feature points inside a second region inside the first image, a first density of the first feature points inside the first region being higher than a second density of the second feature points inside the second region.
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Specification