Labview-platform-based ultrasound endoscopic imaging device and method
An imaging method and ultrasonic image technology, which is applied in the directions of ultrasonic/acoustic/infrasonic diagnosis, acoustic diagnosis, infrasonic diagnosis, etc., can solve the problems of single signal processing method and complex system structure, etc., achieve simple signal processing method and improve signal-to-noise ratio , cost-saving effect
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Embodiment 1
[0026] Ultrasonic endoscopic imaging method based on Labview platform, such as figure 1 As shown, the following steps are included under the Labview platform: the acquired ultrasound image projection data is transferred to the CPU memory through the CPU; the ultrasound image projection data is divided into multiple projection data areas by the CPU, and adjacent projection data are judged Whether there is partial overlap in the area, and send the multiple projection data areas to the GPU memory; through the GPU parallel kernel function, and superimpose the pixel values in the adjacent projection data areas that have partial overlapping areas, each projection data area Perform reconstruction; synthesize the reconstructed projection data regions into a new image.
[0027] The ultrasonic endoscopic imaging method based on the Labview platform of the present invention introduces a GPU-based unified technical equipment framework (CUDA) into the ultrasonic imaging system for signal...
Embodiment 2
[0039] A system for implementing a method of the present invention, such as figure 1 As shown, it includes a signal trigger, an ultrasonic transmitter receiver, an endoscopic scanning head, a data acquisition card, a computer, an image processor GPU, and an image display; the signal trigger, an ultrasonic transmitter receiver and an endoscopic scanning head are sequentially connected , the data acquisition card is respectively connected with the signal trigger, the ultrasonic transmitting receiver and the computer, and the image processor GPU and the image display are all connected with the computer; the synchronous trigger signal sent by the signal trigger triggers the ultrasonic transmitting receiver Transmit an excitation voltage, the excitation voltage drives the endoscopic scanning head to emit an ultrasonic signal, and the endoscopic scanning head returns an ultrasonic signal; the data acquisition card receives the synchronous trigger signal sent by the signal trigger, tr...
Embodiment 3
[0043] The process of using the library function of the Labview platform to call the CUDA framework function encapsulated in the DLL to perform ultrasound imaging includes the following sub-steps, as follows: image 3 Shown:
[0044] Sub-step 1: On the CPU side, set the working parameters of the ultrasonic endoscopic imaging on the Labview platform: the working parameters of the ultrasonic endoscopic imaging include: projection line number N1, data length N2 and imaging pixels N3, and set the memory under the Labview platform N1*N2, N3*N3 are used as the input memory of the CPU side that calls the DLL;
[0045] Sub-step 2: On the GPU side, according to the set projection line number N1, data length N2 and imaging pixel N3, respectively configure the GPU two video memory sizes: S k (t)=N1*N2, P(i,j)=N3*N3.
[0046] Sub-step 3: start the ultrasonic endoscopic algorithm Kernel in the DLL, and allocate N3*N3 threads, each thread simultaneously calculates the corresponding image ...
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