Results 31 to 40 of about 3,878,820 (309)

Motion Estimation from Spheres [PDF]

open access: yes2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 1 (CVPR'06), 2006
This paper addresses the problem of recovering epipolar geometry from spheres. Previous works have exploited epipolar tangencies induced by frontier points on the spheres for motion recovery. It will be shown in this paper that besides epipolar tangencies, N^2 point features can be extracted from the apparent contours of the N spheres whenN \gt 2.
Guoqiang Zhang 0003   +1 more
openaire   +2 more sources

High-Precision Localization Tracking and Motion State Estimation of Ground-Based Moving Target Utilizing Unmanned Aerial Vehicle High-Altitude Reconnaissance

open access: yesRemote Sensing
This paper focuses on the problem of ground-motion target localization tracking and motion state estimation for high-altitude reconnaissance using fixed-wing UAVs. Our goal is to accurately locate and track ground-moving targets and estimate their motion
Xuyang Zhou, Wei Jia, Ruofei He, Wei Sun
doaj   +1 more source

Vibration-Based Damage Detection in Wind Turbine Blades using Phase-Based Motion Estimation and Motion Magnification [PDF]

open access: yesarXiv.org, 2018
Vibration-based Structural Health Monitoring (SHM) techniques are among the most common approaches for structural damage identification. The presence of damage in structures may be identified by monitoring the changes in dynamic behavior subject to ...
Aral Sarrafi   +3 more
semanticscholar   +1 more source

Fast motion estimation in multi-view video coding

open access: yesTongxin xuebao, 2011
To improve the speed of motion estimation in multi-view video coding system,a fast motion estimation algo-rithm based on Markov chain model was proposed.This algorithm established a predicted motion vector set by making full use of the correlation ...
ZHAO Zhi-jie   +4 more
doaj   +2 more sources

Motion parameters estimation of manoeuvring weak target with multiple motion stages based on range symmetry transform and short‐time fractional Fourier transform

open access: yesElectronics Letters, 2023
With the advancement of manoeuvrability and the increasement of coherent processing interval (CPI), the observed target might be of multiple motion stages.
Zijing Li   +3 more
doaj   +1 more source

A study on sensor position for thigh and lower leg motion sensors during walking (Focusing on the knee sagittal plane angle)

open access: yesNihon Kikai Gakkai ronbunshu, 2018
This paper describes the use of nine-axis motion sensors to evaluate the motion sensor position on the thigh and lower leg during walking. The motion sensors are mounted on a subject's body using adhesive tape.
Ayuko SAITO   +3 more
doaj   +1 more source

Joint Motion Estimation and Layer Segmentation in Transparent Image Sequences—Application to Noise Reduction in X-Ray Image Sequences

open access: yesEURASIP Journal on Advances in Signal Processing, 2009
This paper is concerned with the estimation of the motions and the segmentation of the spatial supports of the different layers involved in transparent X-ray image sequences.
Jean Liénard   +2 more
doaj   +1 more source

Partially Separable Aspects of Spatial and Temporal Estimations in Virtual Navigation as Revealed by Adaptation

open access: yesi-Perception, 2022
Recent studies claim that estimating the magnitude of the spatial and temporal aspects of one's self-motion shows similar characteristics, suggesting shared processing mechanisms between these two dimensions.
Taku Otsuka, Yuko Yotsumoto
doaj   +1 more source

A review of 3D human pose estimation algorithms for markerless motion capture [PDF]

open access: yesComputer Vision and Image Understanding, 2020
Human pose estimation (HPE) in 3D is an active research field that have many applications in entertainment, health and sport science, robotics. In the last five years markerless motion captures techniques have seen their average error decrease from more ...
Yann Desmarais   +3 more
semanticscholar   +1 more source

Central Nervous System Neuroblastoma, FOXR2‐Activated: A Pooled Analysis of Published Clinical Outcomes

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) neuroblastoma, FOXR2‐activated, is a recently recognized entity in the WHO CNS5 classification, defined by activation of the FOXR2 transcription factor and unique histopathological features. This review synthesizes available literature and pooled clinical data, providing insight into demographics ...
Sudarshawn Damodharan   +1 more
wiley   +1 more source

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