Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Myungjin Cho"'
Publikováno v:
Sensors, Vol 24, Iss 6, p 1731 (2024)
In this paper, we propose a method for the three-dimensional (3D) image visualization of objects under photon-starved conditions using multiple observations and statistical estimation. To visualize 3D objects under these conditions, photon counting i
Externí odkaz:
https://doaj.org/article/270a0287134f47ec9758730fbfc9a23b
Autor:
Byungwoo Cho, Myungjin Cho
Publikováno v:
Sensors, Vol 24, Iss 6, p 1952 (2024)
In this paper, we propose a new optical encryption technique that uses the single random phase mask. In conventional optical encryptions such as double random phase encryption (DRPE), two different random phase masks are required to encrypt the prima
Externí odkaz:
https://doaj.org/article/9d6cfb40f29047b5b93ca15b8a4dbb2d
Publikováno v:
Sensors, Vol 24, Iss 6, p 1950 (2024)
Digital Holographic Microscopy (DHM) is a 3D imaging technology widely applied in biology, microelectronics, and medical research. However, the noise generated during the 3D imaging process can affect the accuracy of medical diagnoses. To solve this
Externí odkaz:
https://doaj.org/article/9577b438e6804351a345f5e7ef1c08d0
Publikováno v:
ETRI Journal, Vol 45, Iss 1, Pp 131-137 (2023)
The phase reconstruction process in digital holographic microscopy involves a trade-off between the phase error and the high-spatial-frequency components. In this reconstruction process, if the narrow region of the sideband is windowed in the Fourier
Externí odkaz:
https://doaj.org/article/bcdb49e13e5e457fbb385efed23cbcfc
Publikováno v:
Biomimetics, Vol 8, Iss 8, p 563 (2023)
Recently, research on disease diagnosis using red blood cells (RBCs) has been active due to the advantage that it is possible to diagnose many diseases with a drop of blood in a short time. Representatively, there are disease diagnosis technologies t
Externí odkaz:
https://doaj.org/article/0a3d91ce419f4572879c3f9891f1cd0f
Publikováno v:
IEEE Access, Vol 10, Pp 134052-134060 (2022)
In this paper, we propose three-dimensional(3D) visualization of objects in heavy scattering media by using peplography and wavelet transform. Conventional haze removal techniques can remove the light haze in the image by using various image processi
Externí odkaz:
https://doaj.org/article/bdcb9d2783704f4fb9099a3911feafa6
Publikováno v:
Sensors, Vol 23, Iss 17, p 7571 (2023)
In recent years, research on three-dimensional (3D) reconstruction under low illumination environment has been reported. Photon-counting integral imaging is one of the techniques for visualizing 3D images under low light conditions. However, conventi
Externí odkaz:
https://doaj.org/article/54071fe9332849b6893b16b3996b5ce7
Autor:
Seung-Chan Lim, Myungjin Cho
Publikováno v:
Sensors, Vol 23, Iss 13, p 6154 (2023)
For the reconstruction of high-resolution 3D digital content in integral imaging, an efficient wireless 3D image transmission system is required to convey a large number of elemental images without a communication bottleneck. To support a high transm
Externí odkaz:
https://doaj.org/article/4cde8c453ab44293b7ca00639d0aa362
Three-Dimensional Photon Counting Optical Encryption With Enhanced Visual Quality and Security Level
Publikováno v:
IEEE Access, Vol 9, Pp 128862-128869 (2021)
In this paper, we propose three-dimensional (3D) photon counting double random phase encryption (DRPE) with enhanced visual quality and security level. Conventional 3D photon counting DRPE can quickly encrypt the data by using the 4f optical system a
Externí odkaz:
https://doaj.org/article/8c6befdc9010401c865baa386bc03871
Autor:
Gilsu Yeo, Myungjin Cho
Publikováno v:
Sensors, Vol 23, Iss 5, p 2645 (2023)
In this paper, we propose new three-dimensional (3D) visualization of objects at long distance under photon-starved conditions. In conventional three-dimensional image visualization techniques, the visual quality of three-dimensional images may be de
Externí odkaz:
https://doaj.org/article/91b3b3b01fe2401bb9e3fdee33d1678b