ULTRASONIC DIAGNOSTIC APPARATUS, IMAGE PROCESSING APPARATUS, AND IMAGE PROCESSING METHOD
First Claim
1. An ultrasonic diagnostic apparatus comprising:
- a Doppler processing circuitry configured tocalculate a correlation matrix using a first data string that is a set of reflected wave data generated based on reflected waves that are generated by transmitting ultrasonic waves without making time intervals of transmission pulses uniform on an identical scan line;
calculate a filter coefficient based on a result of principal component analysis using the correlation matrix;
extract a second data string that is included in the first data string, and that is a set of reflected wave data originated from reflected waves of the ultrasonic waves that are reflected on a moving object present on the identical scan line, using the filter coefficient;
estimate moving object information of the moving object based on the extracted second data string;
an image generating circuitry configured to generate ultrasonic image data based on the moving object information; and
a control circuitry configured to cause a display to display the ultrasonic image data thereon.
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Accused Products
Abstract
An ultrasonic diagnostic apparatus includes a Doppler processing circuitry, an image generating circuitry, and a control circuitry. The Doppler processing circuitry calculates a correlation matrix using a first data string that is a set of reflected wave data generated based on reflected waves that are generated by transmitting ultrasonic waves without making time intervals of transmission pulses uniform on an identical scan line. The Doppler processing circuitry calculates a filter coefficient based on a result of principal component analysis using the correlation matrix. The Doppler processing circuitry extracts a second data string that is included in the first data string, and that is a set of reflected wave data originated from reflected waves of the ultrasonic waves that are reflected on a moving object present on the identical scan line, using the filter coefficient. The Doppler processing circuitry estimates moving object information of the moving object based on the extracted second data string. The image generating circuitry generates ultrasonic image data based on the moving object information. The control circuitry causes a display to display the ultrasonic image data thereon.
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Citations
18 Claims
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1. An ultrasonic diagnostic apparatus comprising:
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a Doppler processing circuitry configured to calculate a correlation matrix using a first data string that is a set of reflected wave data generated based on reflected waves that are generated by transmitting ultrasonic waves without making time intervals of transmission pulses uniform on an identical scan line; calculate a filter coefficient based on a result of principal component analysis using the correlation matrix; extract a second data string that is included in the first data string, and that is a set of reflected wave data originated from reflected waves of the ultrasonic waves that are reflected on a moving object present on the identical scan line, using the filter coefficient; estimate moving object information of the moving object based on the extracted second data string; an image generating circuitry configured to generate ultrasonic image data based on the moving object information; and a control circuitry configured to cause a display to display the ultrasonic image data thereon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An image processing apparatus comprising:
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a Doppler processing circuitry configured to calculate a correlation matrix using a first data string that is a set of reflected wave data generated based on reflected waves that are generated by transmitting ultrasonic waves without making time intervals of transmission pulses uniform on an identical scan line; calculate a filter coefficient based on a result of principal component analysis using the correlation matrix; extract a second data string that is included in the first data string, and that is a set of reflected wave data originated from reflected waves of the ultrasonic waves that are reflected on a moving object present on the identical scan line, using the filter coefficient; estimate moving object information of the moving object based on the extracted second data string; an image generating circuitry configured to generate ultrasonic image data based on the moving object information; and a control circuitry configured to cause a display to display the ultrasonic image data thereon.
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18. An image processing method comprising:
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calculating a correlation matrix using a first data string that is a set of reflected wave data generated based on reflected waves that are generated by transmitting ultrasonic waves without making time intervals of transmission pulses uniform on an identical scan line; calculating a filter coefficient based on a result of principal component analysis using the correlation matrix; extracting a second data string that is included in the first data string, and that is a set of reflected wave data originated from reflected waves of the ultrasonic waves that are reflected on a moving object present on the identical scan line, using the filter coefficient; estimating moving object information of the moving object based on the extracted second data string; generating ultrasonic image data based on the moving object information; and displaying the ultrasonic image data on a display.
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Specification
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- Resources
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Current AssigneeCanon Medical Systems Corporation (Canon Inc.)
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Original AssigneeToshiba Medical Systems Corporation (Canon Inc.), Kabushiki Kaisha Toshiba (Toshiba Corporation)
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InventorsSato, Takeshi
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current1/1
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CPC Class CodesA61B 8/461 Displaying means of special...A61B 8/488 involving Doppler signalsA61B 8/5207 involving processing of raw...G01S 15/8979 Combined Doppler and pulse-...
