Hardware and system for single-camera stereo range determination
First Claim
Patent Images
1. A range determiner assembly comprising:
- an image sensor configured to obtain image data for each of a plurality of views of a target captured at each of a plurality of different locations of the range determiner assembly moving in relation to the target at a determinable altitude above a surface;
a detector board comprising at least a first line array, a second line array and a third line array, each of the at least first, second and third line arrays receiving a respective sequence of image data for a corresponding one of the plurality of views; and
processing circuitry configured to;
determine the locations of the range determiner assembly when the image data is captured;
determine angular differences to the target at each of the locations; and
determine a relative distance between the range determiner assembly and the target based on the image data, the locations of the ranger determiner assembly when the image data is captured, and the angular differences to the target at each of the locations.
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Abstract
A range determiner assembly may include an image sensor, a detector board and processing circuitry. The image sensor may be configured to obtain image data for each of three views of a target at each of a plurality of different locations along the track of a craft moving at a determinable altitude above a surface of the earth. The detector board may include a first line array, a second line array and a third line array. Each of the first, second and third line arrays may receive a respective sequence of images from a corresponding one of the three views. The processing circuitry may be configured to determine a relative distance between the craft and the target based on the image data.
15 Citations
20 Claims
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1. A range determiner assembly comprising:
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an image sensor configured to obtain image data for each of a plurality of views of a target captured at each of a plurality of different locations of the range determiner assembly moving in relation to the target at a determinable altitude above a surface; a detector board comprising at least a first line array, a second line array and a third line array, each of the at least first, second and third line arrays receiving a respective sequence of image data for a corresponding one of the plurality of views; and processing circuitry configured to; determine the locations of the range determiner assembly when the image data is captured; determine angular differences to the target at each of the locations; and determine a relative distance between the range determiner assembly and the target based on the image data, the locations of the ranger determiner assembly when the image data is captured, and the angular differences to the target at each of the locations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of determining range to a target, the method comprising:
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obtaining, at a craft, image data of the target at three different angles to provide three near-coincident views of the target captured at each of a plurality of different locations along a track of the craft moving at a determinable altitude above a surface of the earth; providing the image data to a detector board comprising a first line array, a second line array and a third line array, each of the first, second and third line arrays receiving a respective sequence of image data for a corresponding one of the three views; determining the locations of the craft when the image data is captured; determining angular differences to the target at each of the locations; and determining a relative distance between the craft and the target based on the image data, the locations of the craft when the image data is captured, and the angular differences to the target at each of the locations. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification