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US 12,510,642 B2Granted
Signal processing methods and systems
AssigneeWuhan United Imaging Healthcare Co., Ltd.
InventorsYihui Da, Xin Liu, Yaowen Zhang
Life of this patent
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Abstract
The present disclosure provides a signal processing method, comprising: obtaining a Doppler ultrasound signal; converting two adjacent groups of ultrasound signals of the Doppler ultrasound signal into frequency domain signals, and obtaining a result of the signal filling by filling missing ultrasound signals in a preset time period based on the frequency domain signals, the preset time period being an acquisition time interval of the two adjacent groups of ultrasound signals; and determining a target Doppler ultrasound signal based on the result of the signal filling.
Claims18
A signal processing method, comprising:
- obtaining a Doppler ultrasound signal;
- converting two adjacent groups of ultrasound signals of the Doppler ultrasound signal into frequency domain signals, and obtaining a result of the signal filling by filling missing ultrasound signals in a preset time period based on the frequency domain signals, the preset time period being an acquisition time interval of the two adjacent groups of ultrasound signals, the converting the two adjacent groups of ultrasound signals of the Doppler ultrasound signal into the frequency domain signals, and obtaining the result of the signal filling by filling the missing ultrasound signals in the preset time period based on the frequency domain signals including:
- obtaining, based on the Doppler ultrasound signal, two adjacent groups of first ultrasound signals;
- converting the two adjacent groups of first ultrasound signals into second ultrasound signals, the second ultrasound signals being the frequency domain signals;
- obtaining interpolation processed second ultrasound signals by performing an interpolation process based on the second ultrasound signals;
- obtaining an interpolation result by converting the interpolation processed second ultrasound signals into time domain signals;
- and
- filling the missing ultrasound signals in the preset time period based on the interpolation result;
- and
- determining a target Doppler ultrasound signal based on the result of the signal filling.
7 more elements
A signal processing system, comprising:
- at least one storage device including a set of instructions;
- and
- at least one processor in communication with the at least one storage device, wherein when executing the set of instructions, the at least one processor is directed to cause the system to perform operations including:
- obtaining a Doppler ultrasound signal;
- converting two adjacent groups of ultrasound signals of the Doppler ultrasound signal into frequency domain signals, and obtaining a result of the signal filling by filling missing ultrasound signals in a preset time period based on the frequency domain signals, the preset time period being an acquisition time interval of the two adjacent groups of ultrasound signals, the converting the two adjacent groups of ultrasound signals of the Doppler ultrasound signal into the frequency domain signals, and obtaining the result of the signal filling by filling the missing ultrasound signals in the preset time period based on the frequency domain signals including;
- obtaining, based on the Doppler ultrasound signal, two adjacent groups of first ultrasound signals;
- converting the two adjacent groups of first ultrasound signals into second ultrasound signals, the second ultrasound signals being the frequency domain signals:
- obtaining interpolation processed second ultrasound signals by performing an interpolation process based on the second ultrasound signals;
- obtaining an interpolation result by converting the interpolation processed second ultrasound signals into time domain signals;
- and
- filling the missing ultrasound signals in the preset time period based on the interpolation result;
- and
- determining a target Doppler ultrasound signal based on the result of the signal filling.
10 more elements
A non-transitory computer readable medium, comprising executable instructions that, when executed by at least one processor, direct the at least one processor to perform a method, the method comprising:
- obtaining a Doppler ultrasound signal;
- converting two adjacent groups of ultrasound signals of the Doppler ultrasound signal into frequency domain signals, and obtaining a result of the signal filling by filling missing ultrasound signals in a preset time period based on the frequency domain signals, the preset time period being an acquisition time interval of the two adjacent groups of ultrasound signals, the converting the two adjacent groups of ultrasound signals of the Doppler ultrasound signal into the frequency domain signals, and obtaining the result of the signal filling by filling the missing ultrasound signals in the preset time period based on the frequency domain signals including:
- obtaining, based on the Doppler ultrasound signal, two adjacent groups of first ultrasound signals;
- converting the two adjacent groups of first ultrasound signals into second ultrasound signals, the second ultrasound signals being the frequency domain signals;
- obtaining interpolation processed second ultrasound signals by performing an interpolation process based on the second ultrasound signals;
- obtaining an interpolation result by converting the interpolation processed second ultrasound signals into time domain signals;
- and
- filling the missing ultrasound signals in the preset time period based on the interpolation result;
- and
- determining a target Doppler ultrasound signal based on the result of the signal filling.
7 more elements
Dependencies are inferred from the claim text.