25TH SYMPOSIUM ON PHOTONICS AND OPTICS SPO 2024

Session

Imaging Techniques, CT Imaging, and Augmented Reality

Nov 8, 2024, 5:35 AM

Room 103 (Zoom and Faculty of Physics, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine)

Conveners

Imaging Techniques, CT Imaging, and Augmented Reality

• Kateryna Zelenska

54. Spatial Representation of 3D X-ray CT using Mixed Reality that Matches the Practitioner’s Perspective

Dr Hiroki Kase (Shizuoka University)

11/8/24, 5:35 AM

Invited Talk

In recent years, research utilizing Mixed Reality (MR) has garnered attention in medical fields, particularly in radiology. By rendering data acquired from X-ray CT and MRA in 3D and aligning it with the real-world environment, MR can be applied to support diagnostics, simulate surgeries, and assist in medical procedures. However, conventional multi-planar reconstruction (MPR) images of...

29. Simulation of Micro-metal Detection with Backscattered X-ray

Kohei Hayashi (Shizuoka University)

11/8/24, 5:55 AM

Oral

Backscattered X-ray imaging is a nondestructive inspection that uses X-rays scattered backward from an object.　
Compared to X-ray transmission imaging, backscattered X-ray imaging has the advantage that the source and detector can be placed on the same side of the object. It is currently used to inspect thick objects and structures.
Although material decomposition methods using X-ray...

61. Visualization of Radiation Intensity Distribution in Space Using Augmented Reality

Takumi Kawakami (静岡大学)

11/8/24, 6:05 AM

Oral

In recent years, the use of radiation has been increasing in various fields. However, because radiation is invisible, it is difficult to tell which places have high radiation doses and which places have low doses. Therefore, there is a risk of exposure when using radiation.
In this research, we conducted a basic experiment to visualize the radiation intensity distribution in space using AR...

27. Nonlinear Characteristic of Sinogram for White X-ray and Superiority ART method rather than Fourier transform method for CT-imaging Reconstruction

Takaharu Suzuki (Shizuoka University)

11/8/24, 6:15 AM

Oral

So far, the CT-imaging reconstruction algorithm mainly use Fourier transform method and ART(Algebraic Reconstruction Technique)method. Especially Fourier transform method is based on that the sinogram is linear for X-ray(single color)absorption coefficient on the object materials. However strictly speaking, usual CT use White X-ray, then the sinogram is not linear for X-ray absorption...

56. 3D representation for simulation of the feeding situation and feeding of “scalpels and other instruments that approach the body” into the body.

Mr TAKAYA HORIUCHI (Shizuoka University)

11/8/24, 6:25 AM

Oral

In recent years, radiotherapy using diagnostic imaging devices has been used in the medical field. In the treatment of scalpels and other instruments that approach the body, it is now possible to compare CT images for treatment planning and immediately prior to treatment to pinpoint the scalpel insertion. This enables more accurate alignment than the previously possible adjustments made by...

28. Identification of composite material using CT imaging

Shunsuke Takemoto (Shizuoka Univ.)

11/8/24, 6:35 AM

Oral

Many of the various products in the world are composed of multiple materials. For example, snacks such as chocolate are sold packed in plastic or paper, and smartphone charging cables have metal power lines covered with nylon. These products can be distinguished by the eyes, but some composite materials cannot.
In X-ray imaging by photon counting using a CT system, X-rays pass through the...