Orientation determination
First Claim
Patent Images
1. A system for determining orientation relative to a remote object comprising:
- imaging apparatus for producing an image of a remote object;
processing apparatus for processing the produced image to determine the orientation;
characterised in that the system further comprises;
a lens located between the remote object and the imaging apparatus, the lens having a non-linearity dependent on the distance of the remote object from the is axis of the imaging apparatus.
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Abstract
An improved orientation system includes a lens pre-distorting an image generated by imaging apparatus such that a non-linearity, the degree of which is dependent on the off-axis distance of an imaged object, is generated so as to increase the strength of a signal indicating said non-linearity.
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Citations
8 Claims
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1. A system for determining orientation relative to a remote object comprising:
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imaging apparatus for producing an image of a remote object;
processing apparatus for processing the produced image to determine the orientation;
characterised in that the system further comprises;
a lens located between the remote object and the imaging apparatus, the lens having a non-linearity dependent on the distance of the remote object from the is axis of the imaging apparatus. - View Dependent Claims (2, 3, 4)
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5. A method of determining orientation relative to a remote object, the method comprising the steps of:
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receiving an image of the remote object;
producing a non-linearity in the received image, the degree of non-linearity being dependent on the distance of the remote object from a central axis;
producing an image of the remote object, the image including the introduced non-linearity;
processing the produced image by using the non-linearity in the image to determine orientation. - View Dependent Claims (6, 7, 8)
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Specification