Methods and apparatus for high-resolution continuous scan imaging using vold-kalman filtering
First Claim
1. A method of imaging a test subject, comprising:
- providing one or more moveable sensors to sense an attribute of the test subject, the attribute having a tonal noise component and a broadband noise component;
providing a rotational sensor to sense a rotational velocity of a rotational element of the test subject;
moving each of the moveable sensors along a path while continuously acquiring;
rotational sensor test data from the rotational sensor, the rotational sensor test data indicative of the rotational velocity of the rotational element;
moveable sensor test data from the moveable sensors, the moveable sensor test data indicative of the sensed attribute;
a position of each of the moveable sensors; and
an orientation of each of the moveable sensors;
constructing a set of transfer functions corresponding to points in space that have been visited by the moveable sensors, each of the transfer functions relating the moveable sensor test data to the rotational sensor test data; and
producing a visual representation of the tonal noise component of the attribute in a region adjacent the test subject using the set of transfer functions.
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Abstract
A method of imaging a test subject includes providing one or more moveable sensors to sense an attribute of the test subject (e.g., acoustic pressure), wherein the attribute has a tonal noise component and a broadband noise component. A rotational sensor is provided to sense a rotational velocity of a rotational element of the test subject. Each of the moveable sensors are moved along a path while continuously acquiring test data that is indicative of the rotational velocity of the rotational element, the sensed attribute, the position, and the orientation of each of the moveable sensors. A set of transfer functions corresponding to points in space that have been visited by the moveable sensors are constructed, each of the transfer functions relating the test data of the moveable sensors to the test data of the rotational sensor. A visual representation of the tonal noise component of the attribute in a region adjacent the test subject is produced using the set of transfer functions.
11 Citations
20 Claims
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1. A method of imaging a test subject, comprising:
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providing one or more moveable sensors to sense an attribute of the test subject, the attribute having a tonal noise component and a broadband noise component; providing a rotational sensor to sense a rotational velocity of a rotational element of the test subject; moving each of the moveable sensors along a path while continuously acquiring;
rotational sensor test data from the rotational sensor, the rotational sensor test data indicative of the rotational velocity of the rotational element;
moveable sensor test data from the moveable sensors, the moveable sensor test data indicative of the sensed attribute;
a position of each of the moveable sensors; and
an orientation of each of the moveable sensors;constructing a set of transfer functions corresponding to points in space that have been visited by the moveable sensors, each of the transfer functions relating the moveable sensor test data to the rotational sensor test data; and producing a visual representation of the tonal noise component of the attribute in a region adjacent the test subject using the set of transfer functions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for scanning a test subject, comprising:
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one or more moveable sensors to continuously sense an attribute of the test subject during a test mode in which the one or more moveable sensors moves along a path with respect to the test subject, wherein the attribute has a tonal noise component and a broadband noise component; a rotational sensor to sense a rotational velocity of a rotational element of the test subject; a data acquisition system coupled to the moveable sensors and the rotational sensor, wherein during the test mode the data acquisition system acquires;
moveable sensor test data from the moveable sensors, the moveable sensor test data associated with the sensed attribute;
a position of each of the moveable sensors;
an orientation of each of the moveable sensors; and
rotational sensor test data from the rotational sensor, the rotational sensor test data indicative of the rotational velocity of the rotational element;a processor to analyze the acquired data and construct a set of transfer functions relating the moveable sensor test data to the rotational sensor test data; and a display for providing a visual representation of the tonal noise component of the attribute in a region adjacent the test subject using the set of transfer functions. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of imaging a test subject, comprising:
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moving a plurality of moveable sensors along a path around the test subject while continuously acquiring acoustic test data that is indicative of an acoustic property of the test subject and rotational test data associated with a rotational velocity of an element of the test subject; constructing a set of transfer functions corresponding to points in space that have been visited by the plurality of moveable sensors, each of the transfer functions relating the acoustic test data acquired by the plurality of moveable sensors to the rotational test data associated with the rotational velocity; and producing a visual representation of a tonal noise component of the acoustic property in a region adjacent the test subject using the set of transfer functions. - View Dependent Claims (20)
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Specification