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  1. No Access

    Article

    Digital tomosynthesis (DTS) with a Circular X-ray tube: Its image reconstruction based on total-variation minimization and the image characteristics

    In this paper, we introduce an effective imaging system for digital tomosynthesis (DTS) with a circular X-ray tube, the so-called circular-DTS (CDTS) system, and its image reconstruction algorithm based on the to...

    Y. O. Park, D. K. Hong, H. S. Cho, U. K. Je… in Journal of the Korean Physical Society (2013)

  2. No Access

    Article

    Compressed-sensing (CS)-based 3D image reconstruction in cone-beam CT (CBCT) for low-dose, high-quality dental X-ray imaging

    The most popular reconstruction algorithm for cone-beam computed tomography (CBCT) is based on the computationally-inexpensive filtered-backprojection (FBP) method. However, that method usually requires dense ...

    M. S. Lee, H. J. Kim, H. S. Cho, D. K. Hong… in Journal of the Korean Physical Society (2013)

  3. No Access

    Article

    Sparse-view image reconstruction in inverse-geometry CT (IGCT) for fast, low-dose, volumetric dental X-ray imaging

    As a new direction for computed tomography (CT) imaging, inverse-geometry CT (IGCT) has been recently introduced and is intended to overcome limitations in conventional cone-beam CT (CBCT) such as the cone-bea...

    D. K. Hong, H. S. Cho, J. E. Oh, U. K. Je… in Journal of the Korean Physical Society (2012)

  4. No Access

    Article

    Total variation minimization-based spiral CT reconstruction in a dental panoramic imaging system for cost-effective, low-dose dental X-ray imaging

    In the paper, we proposed a pragmatic method capable of implementing a cost-effective, low-dose CT reconstruction directly onto a dental panoramic X-ray imaging system by adopting a spiral source trajectory. I...

    D. K. Hong, S. H. Lee, H. S. Cho, J. E. Oh… in Journal of the Korean Physical Society (2012)

  5. No Access

    Article

    Compressed-sensing (CS)-based micro-DTS reconstruction for applications of fast, low-dose x-ray imaging

    In this paper, we introduce limited-angle tomography in which the object being imaged is rotated around the center of an inclined X-ray beam, the so-called micro-DTS (digital tomosynthesis), with a few-view image...

    J. E. Oh, H. S. Cho, D. K. Hong, M. S. Lee… in Journal of the Korean Physical Society (2012)