REDUCTION OF ECHO DECORRELATION FACILITATING MOTION ESTIMATION
First Claim
1. A method of extracting information pertaining to at least one moving target, said method comprising:
- inputting to a principal components processor, a set of signal data comprising signal data corresponding to at least one waveform acquired from said at least one moving target,forming a complex representation of said set of signal data,calculating, using a principal components processor, at least one complex principal component of said complex representation;
automatically selecting at least one of said at least one complex principal components; and
applying each of said at least one automatically selected complex principal component to extract information about said at least one moving target.
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Accused Products
Abstract
Methods systems and computer readable media are provided for extracting information pertaining to at least one moving target. A set of signal data are inputted to a principal components processor, wherein the set of signal data comprise signal data corresponding to at least one waveform acquired from the at least one moving target. A complex representation of the set of signal data is formed and, using a principal components processor, at least one complex principal component of the complex representation is calculated. At least one of the calculated complex principal components is automatically selected and each of the at least one automatically selected complex principal component is applied to extract information about the at least one moving target. Methods systems and computer readable media are provided extracting information pertaining to at least one moving target. A set of signal data comprising signal data corresponding to at least one waveform acquired from the at least one moving target are inputted to a principal components processor. A complex representation of the set of signal data is formed, and at least one complex principal component of the complex representation is calculated. An estimated value of a physical characteristic of the at least one moving, target is then calculated, using a phase of at least one of the at least one complex principal components.
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Citations
38 Claims
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1. A method of extracting information pertaining to at least one moving target, said method comprising:
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inputting to a principal components processor, a set of signal data comprising signal data corresponding to at least one waveform acquired from said at least one moving target, forming a complex representation of said set of signal data, calculating, using a principal components processor, at least one complex principal component of said complex representation; automatically selecting at least one of said at least one complex principal components; and applying each of said at least one automatically selected complex principal component to extract information about said at least one moving target. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of extracting information pertaining to at least one moving target, said method comprising:
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inputting to a principal components processor, a set of signal data comprising signal data corresponding to at least one waveform acquired from said at least one moving target; forming a complex representation of said set of signal data; calculating, using a principal components processor, at least one complex principal component of said complex representation; and calculating an estimated value of a physical characteristic of said at least one moving target, using a phase of at least one of said at least one complex principal components. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30)
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26. The method of 25, wherein said motion estimation is used in performing sonorheometry.
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31. A system for reducing echo decorrelation for a moving target, said system comprising:
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a computer including an input device configured to input signal data to said computer, a processor configured to transform the signal data from real data to complex data having an imaginary component, to automatically calculate at least one principal component of said complex data, to automatically select at least one calculated principal component, and to extract parameters from said at least one automatically selected principal component to estimate a property of the target. - View Dependent Claims (32, 33, 34, 35, 36)
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37. A computer readable medium that provides instructions, which when executed on a processor, cause the processor to perform a method comprising:
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accessing a set of signal data, wherein said signal data is generated from waves reflected off or emitted from a moving target; forming a complex representation of said set of signal data; calculating, using a principal components processor, at least one complex principal component of said complex representation; automatically selecting at least one of said at least one complex principal components; and applying each of said at least one automatically selected complex principal component to extract information about said at least one moving target.
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38. A computer readable medium that provides instructions, which when executed on a processor, cause the processor to perform a method comprising:
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accessing a set of signal data, wherein said signal data is generated from waves reflected off or emitted from a moving target; forming a complex representation of said set of signal data; calculating, using a principal components processor, at least one complex principal component of said complex representation; and calculating an estimated value of a physical characteristic of said at least one moving target, using a phase of at least one of said at least one complex principal components.
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Specification