• Title/Summary/Keyword: 빔추적기법

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Construction of Static 3D Ultrasonography Image by Radiation Beam Tracking Method from 1D Array Probe (1차원 배열 탐촉자의 방사빔추적기법을 이용한 정적 3차원 초음파진단영상 구성)

  • Kim, Yong Tae;Doh, Il;Ahn, Bongyoung;Kim, Kwang-Youn
    • Journal of the Korean Society for Nondestructive Testing
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    • v.35 no.2
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    • pp.128-133
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    • 2015
  • This paper describes the construction of a static 3D ultrasonography image by tracking the radiation beam position during the handy operation of a 1D array probe to enable point-of-care use. The theoretical model of the transformation from the translational and rotational information of the sensor mounted on the probe to the reference Cartesian coordinate system was given. The signal amplification and serial communication interface module was made using a commercially available sensor. A test phantom was also made using silicone putty in a donut shape. During the movement of the hand-held probe, B-mode movie and sensor signals were recorded. B-mode images were periodically selected from the movie, and the gray levels of the pixels for each image were converted to the gray levels of 3D voxels. 3D and 2D images of arbitrary cross-section of the B-mode type were also constructed from the voxel data, and agreed well with the shape of the test phantom.