Results 1 to 10 of about 93 (70)

Three-Dimensional Integral Imaging with Enhanced Lateral and Longitudinal Resolutions Using Multiple Pickup Positions

Sensors, 2022
In this paper, we propose an enhancement of three-dimensional (3D) image visualization techniques by using different pickup plane reconstructions. In conventional 3D visualization techniques, synthetic aperture integral imaging (SAII) and volumetric ...
Jiheon Lee, Myungjin Cho
doaj   +1 more source

Three-Dimensional Digital Zooming of Integral Imaging under Photon-Starved Conditions

Sensors, 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 ...
Gilsu Yeo, Myungjin Cho
doaj   +1 more source

Three-Dimensional Photon Counting Optical Encryption With Enhanced Visual Quality and Security Level

IEEE Access, 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 and ...
Jaehoon Lee, Myungjin Cho, Min-Chul Lee
doaj   +1 more source

Three-Dimensional (3D) Visualization under Extremely Low Light Conditions Using Kalman Filter

Sensors, 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, conventional
Hyun-Woo Kim, Myungjin Cho, Min-Chul Lee
doaj   +1 more source

Noninvasive rapid observation of volumetric calcium transients in human cortical organoids using light field microscopy with annular scanning [PDF]

APL Photonics
Volumetric calcium imaging in three-dimensional neural cultures requires high temporal throughput, cellular-level spatial discrimination, and low phototoxicity; however, conventional axial-scanning methods trade volumetric speed against cumulative ...
Cheol Hong Min, Seungwon Jeong, Jeong-Sun Choi, Sangjun Park, Hyun-jong Jang, Kyung-Ok Cho, Moonseok Kim   +6 more
doaj   +1 more source

Three-Dimensional Image Transmission of Integral Imaging through Wireless MIMO Channel

Sensors, 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.
Seung-Chan Lim, Myungjin Cho
doaj   +1 more source

TomoPhantom, a software package to generate 2D–4D analytical phantoms for CT image reconstruction algorithm benchmarks

SoftwareX, 2018
In the field of computerized tomographic imaging, many novel reconstruction techniques are routinely tested using simplistic numerical phantoms, e.g. the well-known Shepp–Logan phantom.
Daniil Kazantsev, Valery Pickalov, Srikanth Nagella, Edoardo Pasca, Philip J. Withers   +4 more
doaj   +1 more source

Creating high-resolution 3D cranial implant geometry using deep learning techniques

Frontiers in Bioengineering and Biotechnology, 2023
Creating a personalized implant for cranioplasty can be costly and aesthetically challenging, particularly for comminuted fractures that affect a wide area. Despite significant advances in deep learning techniques for 2D image completion, generating a 3D
Chieh-Tsai Wu, Chieh-Tsai Wu, Yao-Hung Yang, Yau-Zen Chang, Yau-Zen Chang, Yau-Zen Chang   +5 more
doaj   +1 more source

Multi‐Scale Label‐Free Human Brain Imaging with Integrated Serial Sectioning Polarization Sensitive Optical Coherence Tomography and Two‐Photon Microscopy

Advanced Science, 2023
The study of aging and neurodegenerative processes in the human brain requires a comprehensive understanding of cytoarchitectonic, myeloarchitectonic, and vascular structures.
Shuaibin Chang, Jiarui Yang, Anna Novoseltseva, Ayman Abdelhakeem, Mackenzie Hyman, Xinlei Fu, Chenglin Li, Shih‐Chi Chen, Jean C. Augustinack, Caroline Magnain, Bruce Fischl, Ann C. Mckee, David A. Boas, Ichun Anderson Chen, Hui Wang   +14 more
doaj   +1 more source

Axial Imaging Technologies in Multiphoton Microscopy

Advanced Devices & Instrumentation
Axial imaging is critical for high-speed volumetric multiphoton microscopy, particularly in neuroscience and functional imaging. This review systematically summarizes 3 major paradigms, single-point scanning, multifocus imaging, and continuous-beam ...
Hongsen He, Minghui Shi, Yan Xie, Xin Dong, Kenneth K. Y. Wong   +4 more
doaj   +1 more source