Results 41 to 50 of about 445,901 (262)

A Dense Optical Flow Field Estimation with Variational Refinement

Journal of Engineering Technology and Applied Physics, 2019
Optical flow has long been a focus of research study in computer vision community. Researchers have established extensive work to solve the optical flow estimation.
Wei Yong Eng, Yang Lang Chang, Tien Sze Lim, Voon Chet Koo   +3 more
doaj   +1 more source

Optical Flow Estimation with Occlusion Detection

Algorithms, 2019
The dense optical flow estimation under occlusion is a challenging task. Occlusion may result in ambiguity in optical flow estimation, while accurate occlusion detection can reduce the error.
Song Wang, Zengfu Wang
doaj   +1 more source

Double-Cycle Alternating-Flow Diode Pumped Potassium Vapor Laser

Photonics
A novel double-cycle alternating-flow diode-pumped potassium vapor laser is proposed, theoretically modeled and simulated. The results show that the optical-to-optical efficiency of the laser increases with increasing gas flow rates, although at high ...
Songyang Liu, Rongqing Tan, Wenning Xu, Fangjin Ning, Zhiyong Li   +4 more
doaj   +1 more source

Complementary Optic Flow [PDF]

, 2009
We introduce the concept of complementarity between data and smoothness term in modern variational optic flow methods. First we design a sophisticated data term that incorporates HSV colour representation with higher order constancy assumptions, completely separate robust penalisation, and constraint normalisation.
Henning Zimmer, Andrés Bruhn, Joachim Weickert, Levi Valgaerts, Agustín Salgado, Bodo Rosenhahn, Hans-Peter Seidel   +6 more
openaire   +2 more sources

“Determining optical flow”: a retrospective [PDF]

Artificial Intelligence, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Horn, Berthold K. P., Schunck, Brian G.
openaire   +3 more sources

An Optical Flow Approach to Tracking Ship Track Behavior Using GOES-R Satellite Imagery

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Ship emissions can form linear cloud structures, or ship tracks, when atmospheric water vapor condenses on aerosols in the ship exhaust. These structures are of interest because they are observable and traceable examples of MCB, a mechanism that has been
Kelsie M. Larson, Lyndsay Shand, Andrea Staid, Skyler Gray, Erika L. Roesler, Don Lyons   +5 more
doaj   +1 more source

Feasibility and Safety of Somato‐Cognitive Coordination Therapy for Cerebellar Ataxia Following Pediatric Brain Tumor Treatment

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cerebellar ataxia after pediatric brain tumor treatment can cause persistent gait, balance, and speech impairment, yet no established rehabilitation strategy exists. Somato‐cognitive coordination therapy (SCCT) is a virtual reality–guided intervention designed to promote sensorimotor integration through visually constrained reaching
Masanobu Takeuchi, Takashi Matsuzawa, Jun Yamanishi, Masahiro Yoshitomi, Junji Ikeda, Shin‐Ichi Tsujimoto, Yasuteru Yamaguchi, Norio Shiba, Dhroov Pathare, Ayumi Kato, Masahiko Hara   +10 more
wiley   +1 more source

Sustained Therapeutic Efficacy of Intravenous Plasminogen Concentrate in Pediatric Patients With Type 1 Plasminogen Deficiency: An Analysis of Dosing Parameters and Clinical Outcomes

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Type 1 plasminogen deficiency (PLGD‐1) is an ultra‐rare autosomal recessive disorder caused by variants in the PLG gene and affects approximately 1.6 individuals per million. The condition is characterized by decreased plasminogen levels and impaired function, resulting in fibrin‐rich lesions on mucous membranes throughout the body.
Charles Nakar, Karen Thibaudeau, Mary Mathias, Heather McDaniel, Madlen Reschke, Klaus Tenbrock, Joseph M. Parker, Amy Shapiro   +7 more
wiley   +1 more source

Direct Optical-Flow-Aware Computational Framework for 3D Reconstruction

IEEE Access, 2019
In this paper, a direct computational method is presented which combines optical flow and structure from motion (SfM) by putting the SfM problem in the framework of optical flow estimation. In other word, the optical flow is reparametrized in term of the
Huijuan Hu, Pei Chen
doaj   +1 more source

Learnable Optical Flow Network for Radar Echo Extrapolation

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The impact of extreme weather on maintaining flight schedules is becoming more pronounced. Currently, radar echo extrapolation technology is widely used in the nowcasting of severe convection, in which the optical flow method is a representative example ...
Chengwei Zhang, Xudong Zhou, Xiaoyong Zhuge, Meng Xu   +3 more
doaj   +1 more source