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Temporally coherent completion of dynamic shapes

Hao Li, Linjie Luo, Daniel Vlasic, Pieter Peers, Jovan Popović, Mark Pauly, Szymon Rusinkiewicz
2012 ACM Transactions on Graphics  
We present a novel shape completion technique for creating temporally coherent watertight surfaces from real-time captured dynamic performances.  ...  Temporally coherent dynamics of surface patches are obtained by unwarping all frames within a time window using accurate inter-frame correspondences.  ...  The content of the information does not necessary reflect the position or the policy of the U.S. Government, and no official endorsement should be inferred.  ... 
doi:10.1145/2077341.2077343 fatcat:pwpdh6mpibcwrn57r4joauq4km

Temporally Coherent 4D Reconstruction of Complex Dynamic Scenes

Armin Mustafa, Hansung Kim, Jean-Yves Guillemaut, Adrian Hilton
2016 2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)  
This demonstrates reconstruction of complete temporally coherent 4D scene models with improved nonrigid object segmentation and shape reconstruction.  ...  This paper presents an approach for reconstruction of 4D temporally coherent models of complex dynamic scenes.  ...  The proposed approach overcomes limitations of existing methods allowing an unsupervised temporally coherent 4D reconstruction of complete models for general scenes.  ... 
doi:10.1109/cvpr.2016.504 dblp:conf/cvpr/MustafaKGH16 fatcat:5iz2zxxs35hudkwnqo5hoftf3a

Temporally coherent 4D reconstruction of complex dynamic scenes [article]

Armin Mustafa, Hansung Kim, Jean-Yves Guillemaut, Adrian Hilton
2016 arXiv   pre-print
This demonstrates reconstruction of complete temporally coherent 4D scene models with improved nonrigid object segmentation and shape reconstruction.  ...  This paper presents an approach for reconstruction of 4D temporally coherent models of complex dynamic scenes.  ...  of the complete scene with both static and dynamic objects.  ... 
arXiv:1603.03381v2 fatcat:hvo5vh55arbz3iaqrij7fvvslu

Temporally Coherent General Dynamic Scene Reconstruction [article]

Armin Mustafa, Marco Volino, Hansung Kim, Jean-Yves Guillemaut, Adrian Hilton
2020 arXiv   pre-print
This paper demonstrates unsupervised reconstruction of complete temporally coherent 4D scene models with improved non-rigid object segmentation and shape reconstruction and its application to free-viewpoint  ...  and reconstruction to introduce temporal coherence; and a general robust approach for joint segmentation refinement and dense reconstruction of dynamic scenes by introducing shape constraint.  ...  Temporally coherent 4D Reconstruction Temporally coherent 4D reconstruction refers to aligning the 3D surfaces of non-rigid objects in time for a dynamic sequence.  ... 
arXiv:1907.08195v2 fatcat:pcjsowtlj5ejdpnidxerof2kcy

Semantically Coherent Co-Segmentation and Reconstruction of Dynamic Scenes

Armin Mustafa, Adrian Hilton
2017 2017 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)  
Semantic tracklets are introduced to enforce temporal coherence in semantic labelling and reconstruction between widely spaced instances of dynamic objects.  ...  Tracklets of dynamic objects enable unsupervised learning of appearance and shape priors that are exploited in joint segmentation and reconstruction.  ...  : The shape metric gives a measure of the 2D region shape similarity between pairs of frames for each dynamic object.  ... 
doi:10.1109/cvpr.2017.592 dblp:conf/cvpr/MustafaH17 fatcat:t5hbg5cnjbd5tk45s6n4bm7epy

Temporally Coherent General Dynamic Scene Reconstruction

Armin Mustafa, Marco Volino, Hansung Kim, Jean-Yves Guillemaut, Adrian Hilton
2020 International Journal of Computer Vision  
This paper demonstrates unsupervised reconstruction of complete temporally coherent 4D scene models with improved non-rigid object segmentation and shape reconstruction and its application to various applications  ...  and reconstruction to introduce temporal coherence; and a general robust approach for joint segmentation refinement and dense reconstruction of dynamic scenes by introducing shape constraint.  ...  To view a copy of this licence, visit http://creativecomm ons.org/licenses/by/4.0/.  ... 
doi:10.1007/s11263-020-01367-2 fatcat:k4a6n2l4hbfvdo6pp3gczrfhsq

4D Match Trees for Non-rigid Surface Alignment [chapter]

Armin Mustafa, Hansung Kim, Adrian Hilton
2016 Lecture Notes in Computer Science  
The approach is evaluated on single and multiple view images sequences for alignment of partial surface reconstructions of dynamic objects in complex indoor and outdoor scenes to obtain a temporally consistent  ...  This paper presents a method for dense 4D temporal alignment of partial reconstructions of non-rigid surfaces observed from single or multiple moving cameras of complex scenes. 4D Match Trees are introduced  ...  Methodology The aim of this work is to obtain 4D temporally coherent models from partial surface reconstructions of dynamic scenes.  ... 
doi:10.1007/978-3-319-46448-0_13 fatcat:qngtp7nq6jblpcrkvopc3irixi

Stochasticity, periodicity and localized light structures in partially mode-locked fibre lasers

D. V. Churkin, S. Sugavanam, N. Tarasov, S. Khorev, S. V. Smirnov, S. M. Kobtsev, S. K. Turitsyn
2015 Nature Communications  
Real-time measurements of spatio-temporal intensity dynamics are set to bring new insight into rich underlying nonlinear physics of practical active- and passive-cavity photonic systems.  ...  The evolution mapping of intensity auto-correlation function allows us to reveal variety of spatio-temporal coherent structures and to experimentally study their symbiotic co-existence with stochastic  ...  S.S. conceived the idea of the ACF evolution mapping and made measurements. S.S., N.T. and S.K. processed the data. All the authors analysed the data.  ... 
doi:10.1038/ncomms8004 pmid:25947951 pmcid:PMC4430819 fatcat:vrxq3tr3xbgefbip4p4nxwvriy

Semantically Coherent 4D Scene Flow of Dynamic Scenes

Armin Mustafa, Adrian Hilton
2019 International Journal of Computer Vision  
, temporally coherent semantic labelling, and reconstruction of dynamic scenes.  ...  views at a single time instant, and temporally, between widely spaced time instants of dynamic objects with similar shape and appearance.  ...  Acknowledgements This research was supported by the Royal Academy of Engineering Research Fellowship RF-201718-17177, and the EPSRC Platform Grant on Audio-Visual Media Research EP/P022529.  ... 
doi:10.1007/s11263-019-01241-w fatcat:czf3b4zytvf4zn5wexeya4quo4

4D Temporally Coherent Light-field Video [article]

Armin Mustafa, Marco Volino, Jean-yves Guillemaut, Adrian Hilton
2018 arXiv   pre-print
EPIs are used to constrain scene flow estimation to obtain 4D temporally coherent representations of dynamic light-fields. Temporal coherence is achieved on a variety of light-field datasets.  ...  The large amount of data and the absence of methods to infer temporal coherence pose major challenges in storage, compression and editing compared to conventional video.  ...  Robust techniques have been introduced for temporal alignment of the reconstructed non-rigid shape to obtain a 4D model based on tracking the complete surface shape or volume for complex motion [8, 9,  ... 
arXiv:1804.11276v1 fatcat:ddlq52jhdfao3fxwu3xmfr5ccq

4D Temporally Coherent Light-Field Video

Armin Mustafa, Marco Volino, Jean-Yves Guillemaut, Adrian Hilton
2017 2017 International Conference on 3D Vision (3DV)  
EPIs are used to constrain scene flow estimation to obtain 4D temporally coherent representations of dynamic light-fields. Temporal coherence is achieved on a variety of light-field datasets.  ...  The large amount of data and the absence of methods to infer temporal coherence pose major challenges in storage, compression and editing compared to conventional video.  ...  Robust techniques have been introduced for temporal alignment of the reconstructed non-rigid shape to obtain a 4D model based on tracking the complete surface shape or volume for complex motion [3, 4,  ... 
doi:10.1109/3dv.2017.00014 dblp:conf/3dim/MustafaVGH17 fatcat:agntgnv5d5gafnjey54gqivnja

Coherent control of photoelectron wavepacket angular interferograms

P Hockett, M Wollenhaupt, T Baumert
2015 Journal of Physics B: Atomic, Molecular and Optical Physics  
Coherent control over photoelectron wavepackets, via the use of polarization-shaped laser pulses, can be understood as a time and polarization-multiplexed process.  ...  Based on this understanding, the use of coherent control with polarization-shaped pulses as a methodology for a highly multiplexed coherent quantum metrology is also investigated, and defined in terms  ...  Financial support by the State Initiative for the Development of Scientific and Economic Excellence (LOEWE) in the LOEWE-Focus ELCH is gratefully acknowledged.  ... 
doi:10.1088/0953-4075/48/21/214004 fatcat:5oflurv335aevfhr2arouqzq34

Fission of solitons in continuous-wave supercontinuum

E. J. R. Kelleher, M. Erkintalo, J. C. Travers
2012 Optics Letters  
Specifically, we show that intensity fluctuations characteristic of temporal partial coherence can be described as a stochastic train of high-order solitons, whose individual dynamics drive continuum formation  ...  We use numerical simulations to revisit the generation of fiber supercontinua pumped by partially coherent continuous-wave (CW) sources.  ...  The intensity is fitted with the functional shape of a temporal soliton, with a duration of T s 0.8 ps and peak power P s 55.4 W.  ... 
doi:10.1364/ol.37.005217 pmid:23258057 fatcat:gll2qgs7knbhfidxtwr7snlgwm

Temporal shape manipulation of intense light pulses by coherent population trapping

V. G. Arkhipkin, I. V. Timofeev
2006 Physical Review A. Atomic, Molecular, and Optical Physics  
We describe how to control the temporal shape of adiabaton using peculiarities of propagation dynamics under coherent population trapping.  ...  Temporal compression is demonstrated as a special case of pulse shaping. The general case of unequal oscillator strengths of two optical transitions in atom is considered.  ...  In this paper we generalize this method for controlling the temporal shape of the intense probe pulse using the peculiarities of CPT propagation dynamics.  ... 
doi:10.1103/physreva.73.025803 fatcat:z6nyes5fj5fjnailnxzm2r2yju

Using Multiple RGB-D Cameras for 3D Video Acquisition and Spatio-Temporally Coherent 3D Animation Reconstruction

Naveed Ahmed, Imran Junejo
2014 Journal of clean energy technologies  
The reconstructed spatio-temporally coherent 3D animation can be used in a number of applications that require time-coherent data, e.g. motion analysis, gesture recognition, compression, free-viewpoint  ...  We present a system for spatio-temporally coherent 3D animation reconstruction from multi-view RGB-D images.  ...  INTRODUCTION First step in obtaining spatio-temporally coherent 3D video is to capture the shape, appearance and motion of a dynamic real-world object.  ... 
doi:10.7763/ijcte.2014.v6.907 fatcat:egqgijxosnaatoj4bmh43ofv6e
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