Ultrasonic endoscopic imaging system and method based on labview platform
An imaging method and ultrasonic image technology, applied in the directions of ultrasonic/sonic wave/infrasonic wave diagnosis, acoustic wave diagnosis, infrasonic wave diagnosis, etc., can solve the problems of single signal processing method and complex system structure, etc. The effect of speed increase
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Embodiment 1
[0025] Ultrasound endoscopic method based on the LabVIEW platform, such as figure 1 As shown, including the following steps under the LabVIEW platform: transmit the acquired ultrasound image projection data into the CPU memory; divide the ultrasound image projection data into a multi-block projection data area, determine adjacent projection data Whether the area is partially overlapping, and transmitting the multi-block data area to the GPU memory; through the GPU parallel nuclear function, the pixel value of the adjacent projection data area is superimposed, each projecting data area Reconstruction; synthesize the reconstructed projection data area as a new image.
[0026] In the ultrasonic endoscopic method of the LabVIEW platform, the introduction of the GPU-based unified technical device architecture (CUDA) is introduced into the ultrasound imaging system to perform signal processing and image projection, and achieves low cost on a general-purpose computer with the LabVIEW pla...
Embodiment 2
[0037] A system that implements the implementation of the present invention, such as figure 1 As shown, including signal triggers, ultrasonic transmitters, endoscopic heads, data acquisition cards, computers, image processors, and image display; signal triggers, ultrasound transmitters, and sequential connections The data acquisition card is connected to a signal trigger, an ultrasonic transmit receiver, and a computer connection, the image processor GPU and the image display, respectively, and the image processor GPU and the image display, each with a computer connection; the synchronous trigger signal emitted by the signal trigger triggers an ultrasonic transmit receiver. The emitting excitation voltage, the excitation voltage drives the endoscope head emission ultrasonic signal, the endoscope head returns the ultrasonic signal; the data acquisition card receives the synchronous trigger signal emitted by the signal trigger, triggers the data acquisition card to collect the ultra...
Embodiment 3
[0041] The process of calling the DLL packaged CUDA architecture function using the LabVIEW platform of the library function includes the following sub-steps, such as image 3 Down:
[0042] Sub-step 1: In the CPU side, the working parameters of the ultrasound endoscopic in the LabVIEW platform: the operation parameters of the ultrasound endoscopic include: the number of projection lines N1, the data length N2, and the imaging pixel N3, and set the memory under the LabVIEW platform. N1 * n2, n3 * n3 is used as input memory for the CPU end of the calling DLL;
[0043] Sub-step 2: On the GPU end, the data length N2 and the imaging pixel N3 are configured by the data length N2 and the imaging pixel N3, respectively, according to the set proximity N1 N1. k (t) = n1 * n2, p (i, j) = n3 * n3.
[0044] Sub-step 3: Start the ultrasonic endometer Kernel within the DLL and assign N3 * N3 threads, each thread performs the calculation of corresponding image pixel values P (i, j) according to...
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