Results 31 to 40 of about 13,263 (160)

Volumetric Next Best View by 3D Occupancy Mapping Using Markov Chain Gibbs Sampler for Precise Manufacturing

IEEE Access, 2019
In this paper, we propose a model-free volumetric Next Best View (NBV) algorithm for accurate 3D reconstruction using a Markov Chain Monte Carlo method for high-mix-low-volume objects in manufacturing. The volumetric information gain based Next Best View
Lei Hou, Xiaopeng Chen, Kunyan Lan, Rune Rasmussen, Jonathan Roberts   +4 more
doaj   +1 more source

GPU-Based Acceleration for Interior Tomography

IEEE Access, 2014
The compressive sensing (CS) theory shows that real signals can be exactly recovered from very few samplings. Inspired by the CS theory, the interior problem in computed tomography is proved uniquely solvable by minimizing the region-of-interest's total ...
Rui Liu, Yan Luo, Hengyong Yu
doaj   +1 more source

Three-Dimensional Image Visualization under Photon-Starved Conditions Using N Observations and Statistical Estimation

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

Low-Cost Method to Volumetric Computed Aided Planning of Posttraumatic Sequelae in Orbito-Zygomatic Reconstruction: A Case Report

Craniomaxillofacial Research & Innovation, 2022
Study design The present case report demonstrated a reproducible and low-cost method to planning orbito-zygomatic reconstruction applied to a sequela of facial trauma. Aim This study aims to purpose a method to surgical planning orbito-zygomatic reconstruction and demonstrate it in a clinical report.
Marcelo Marotta Araújo, Mário Francisco Real Gabrielli, Valfrido Antonio Pereira-Filho, Fábio Ricardo Loureiro Sato, Paulo Roberto De Alencar Bártholo, Pedro Henrique De Azambuja Carvalho   +5 more
openaire   +2 more sources

Compression of 3D Optical Encryption Using Singular Value Decomposition

Sensors
In this paper, we propose a compressionmethod for optical encryption using singular value decomposition (SVD). Double random phase encryption (DRPE), which employs two distinct random phase masks, is adopted as the optical encryption technique. Since the
Kyungtae Park, Min-Chul Lee, Myungjin Cho   +2 more
doaj   +1 more source

Three-Dimensional Visualization Using Proportional Photon Estimation Under Photon-Starved Conditions

Sensors
In this paper, we propose a new method for three-dimensional (3D) visualization that proportionally estimates the number of photons in the background and the object under photon-starved conditions.
Jin-Ung Ha, Hyun-Woo Kim, Myungjin Cho, Min-Chul Lee   +3 more
doaj   +1 more source

Three-dimensional imaging and scanning: Current and future applications for pathology

Journal of Pathology Informatics, 2017
Imaging is vital for the assessment of physiologic and phenotypic details. In the past, biomedical imaging was heavily reliant on analog, low-throughput methods, which would produce two-dimensional images.
Navid Farahani, Alex Braun, Dylan Jutt, Todd Huffman, Nick Reder, Zheng Liu, Yukako Yagi, Liron Pantanowitz   +7 more
doaj   +1 more source

Conformal acoustic holographic lenses for wavefront control via geometry-encoded design

Materials & Design
We present a conformal acoustic holographic lens as a functional material system that integrates geometric architecture, acoustic response, and fabrication for subject-specific wave manipulation. Transcranial focused ultrasound (tFUS) enables noninvasive
Ceren Cengiz, Mihir Pewekar, Hrishikesh Kulkarni, Yunruo Ni, Nathan Sambo, Adam Maxwell, Eli Vlaisavljevich, Wynn Legon, Shima Shahab   +8 more
doaj   +1 more source

Advances in 3D imaging and volumetric reconstruction of fluid and melt inclusions by high resolution X-ray computed tomography [PDF]

Chemical Geology, 2019
Fluid and melt inclusions are tiny pockets of fluid and melt trapped in natural and synthetic minerals. Characterizing the 3D distribution of fluid and melt inclusions within minerals, their shape and the volume fraction of their different phases is crucial for determining the conditions of crystal growth and paleostress analysis.
Richard, Antonin, Morlot, Christophe, Créon, Laura, Beaudoin, Nicolas, Balistky, Vladimir, Pentelei, Svetlana, Dyja-Person, Vanessa, Giuliani, Gaston, Pignatelli, Isabella, Legros, Hélène, Sterpenich, Jérôme, Pironon, Jacques   +11 more
openaire   +6 more sources

eTSDF: An Energy-Efficient Accelerator for TSDF-Based 3D Scene Reconstruction in FPGAs

Tsinghua Science and Technology
Three-dimensional (3D) scene reconstruction from the depth sensor is one of the fundamental research problems in many emerging applications such as robotic and virtual reality.
Yu Zhang, Jianing Zheng, Haitao Meng, Chonghao Zhong, Gang Chen   +4 more
doaj   +1 more source