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Feature-Based Multi-video Synchronization with Subframe Accuracy
[chapter]
2012
Lecture Notes in Computer Science
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For multi-video synchronization, the algorithm identifies an informative subset of video pairs which prevents the RANSAC algorithm from being biased by outliers. ...
Our algorithm relies on general image features and it does not require explicitly tracking any specific object, making it applicable to general scenes with complex motion. ...
Two-video synchronization Our algorithm is based on matching trajectories of features appearing in a pair of videos. ...
doi:10.1007/978-3-642-32717-9_27
fatcat:5pev2tyoerh5jesnf5cprr2hum
Accurate Video Alignment Using Phase Correlation
2006
IEEE Signal Processing Letters
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The accuracy of our technique is demonstrated by experimental results using real-world sequences. Index Terms-Multiview video, phase correlation, subframe accuracy, temporal alignment. ...
accuracy. ...
Subframe Ground-Truth via Supplementary Audio In view of difficulty with evaluating the accuracy of subframe video alignment, we come up with a novel approach based on the observation that supplementary ...
doi:10.1109/lsp.2006.879852
fatcat:n6j6zj72wjeflkj5cxe7xof4se
Efficient Subframe Video Alignment Using Short Descriptors
2013
IEEE Transactions on Pattern Analysis and Machine Intelligence
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In addition, we extend the recently introduced ECC image-alignment algorithm to the temporal dimension that allows for spatial registration and synchronization refinement with subframe accuracy. ...
Experiments with real videos by moving or static cameras demonstrate the efficiency of the proposed method and verify its effectiveness with respect to spatio-temporal alignment accuracy. ...
with subframe accuracy. ...
doi:10.1109/tpami.2013.56
pmid:23969383
fatcat:n36uzzpqrne5vff5lwggdkjmya
Synchronization and rolling shutter compensation for consumer video camera arrays
2009
2009 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops
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The first approach is based on strobe illumination, while the second employs a subframe warp along optical flow vectors. ...
the video volume. ...
Most synchronization algorithms are based on some form of feature tracking [6] . ...
doi:10.1109/cvprw.2009.5204340
dblp:conf/cvpr/BradleyAIH09
fatcat:2lziyfk3j5dfpjzoh25uj5s67m
Synchronization and rolling shutter compensation for consumer video camera arrays
2009
2009 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops
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The first approach is based on strobe illumination, while the second employs a subframe warp along optical flow vectors. ...
the video volume. ...
Most synchronization algorithms are based on some form of feature tracking [6] . ...
doi:10.1109/cvpr.2009.5204340
fatcat:7wk7jlahnjdyfbfctwlrtsuljq
Subframe Temporal Alignment of Non-Stationary Cameras
2008
Procedings of the British Machine Vision Conference 2008
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Based on motion trajectory correspondences, the estimation is done in two steps. ...
We verify the robustness and performance of our approach on synthetic data as well as on real video sequences. ...
Main application of the method is multi-view video acquisition. ...
doi:10.5244/c.22.11
dblp:conf/bmvc/MeyerSMP08
fatcat:bhrg3ltcjjhqjhxj3lcdgwljb4
A toolchain for capturing and rendering stereo and multi-view datasets
2011
2011 International Conference on 3D Imaging (IC3D)
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From input data we can either generate new viewpoints employing the Virtual Video Camera a purely image based system or generate 3D scene models. ...
Index Terms-Stereoscopic 3D, Multi-View Stereo, Unsynchronized Cameras. ...
Preferably, the alignment is performed with subframe accuracy. ...
doi:10.1109/ic3d.2011.6584392
dblp:conf/ic3d/KloseLRMM11
fatcat:rp4ceut3nbdpjjrrlocm4o7kki
Optimizing Detection Rate and Characterization of Subtle Paroxysmal Neonatal Abnormal Facial Movements with Multi-Camera Video-Electroencephalogram Recordings
2016
Neuropediatrics
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Conflict of Interests The authors declare no potential conflict of interest with respect to the research, authorship, and/or publication of this article. ...
Therefore, the synchronized video recordings in output from the mixer have a global resolution of 720 Â 576 pixels, divided into four subframes (one for each supported camera) with a resolution of 360 ...
seizures diagnosis. 1 What is generally referred to is a video recording with one single camera synchronized to EEG. ...
doi:10.1055/s-0036-1582245
pmid:27111027
fatcat:6p5rq6a4jfhirknc45fiuazbey
Spatio-temporal motion tracking with unsynchronized cameras
2012
2012 IEEE Conference on Computer Vision and Pattern Recognition
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We reconstruct the pose and motion of a character from a multi-view video sequence without requiring the cameras to be synchronized and without aligning captured frames in time. ...
By formulating the model-to-image similarity measure as a temporally continuous functional, we are also able to reconstruct motion in much higher temporal detail than was possible with previous synchronized ...
Multi-view calibration is performed using a structure-from-motion approach, and subframe accurate synchronization is achieved by optimizing correlation of the audio channels of each video. ...
doi:10.1109/cvpr.2012.6247886
dblp:conf/cvpr/ElhayekSHKST12
fatcat:3cpuyejl5fagbdgiuebprnwyxm
Optimization of Symmetric Transfer Error for Sub-frame Video Synchronization
[chapter]
2008
Lecture Notes in Computer Science
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Unlike existing methods that synchronize videos of similar events (i.e., videos related to each other through the motion in the scene) up to an integer alignment, we establish sub-frame video synchronization ...
To this end, we propose a novel symmetric transfer error which is dynamically minimized, and reduces the propagation of error from feature extraction and spatial mapping into temporal synchronization. ...
Comparative analysis with a rank-constraint based method demonstrated a marked improvement in video synchronization with our method. ...
doi:10.1007/978-3-540-88688-4_41
fatcat:gm2a5nht3fexjha4x3kqaafhky
Towards 5G Enabled Tactile Robotic Telesurgery
[article]
2018
arXiv
pre-print
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However, the performance of robotic telesurgery largely depends on the network performance in terms of latency, jitter and packet loss, especially when telesurgical system is equipped with haptic feedback ...
Based on this, a viable network architecture enabled by the converged edge and core cloud is presented and the relevant research challenges, open issues and enabling technologies in the 5G communication ...
in working with robotic surgery. ...
arXiv:1803.03586v1
fatcat:sohmkhvkhzahvef6qofer6oq3i
Adaptive Subframe Allocation for Next Generation Multimedia Delivery Over Hybrid LTE Unicast Broadcast
2016
IEEE transactions on broadcasting
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This paper presents a novel Hybrid Unicast Broadcast Synchronisation (HUBS) framework to synchronously deliver multi-stream content. ...
Interactive viewing experiences including 3D or Free-Viewpoint Video (FVV) require the synchronous delivery of multiple video streams. ...
doi:10.1109/tbc.2016.2570020
fatcat:rw5k7qlldzbwnfvwr3lraynl5y
Design and Implementation of WiMAX Baseband System
[chapter]
2012
Advanced Transmission Techniques in WiMAX
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In this current scenario, having a flexible and reprogrammable product is necessary to provide a standards-agnostic or multi-protocol base station. ...
In addition, new network architecture is designed with the goal to support packet-switched traffic with seamless mobility, quality of service and minimal latency. ...
Firstly, functional code is created carefully based on the MATLAB simulation platform for each block. Then verify the code's syntax accuracy and logical accuracy with picoTools. ...
doi:10.5772/28805
fatcat:hqvhvy5rjvfsteuiwg7ihk6zwy
Efficient video sequences alignment using unbiased bidirectional dynamic time warping
2011
Journal of Visual Communication and Image Representation
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We also establish sub-frame accuracy video alignment. The advantages of our approach are validated by tests conducted on several pairs of real and synthetic sequences. ...
In this paper, we propose an efficient technique to synchronize video sequences of events that are acquired via uncalibrated cameras at unknown and dynamically varying temporal offsets. ...
However, to align video sequences to subframe accuracy, we need to interpolate between the discrete representations. ...
doi:10.1016/j.jvcir.2011.06.003
fatcat:pmnyymwzbbafzl3327vo7ngmfm
Design and Implementation of a TDD-Based 128-Antenna Massive MIMO Prototyping System
[article]
2016
arXiv
pre-print
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Based on the system hardware design demonstrated in this paper, both uplink real-time video and downlink data transmissions are realized, and the experiment results show that 268.8 Mbps rate was achieved ...
The maximum spectral efficiency of the designed system will be 80.64 bit/s/Hz by twelve single-antenna users with 256-QAM modulation. ...
University students Zijian Han and Feng Ji, Nanjing University of Posts and Telecommunications student Yu Yu, and Zhiya Information Technology engineers Xiaolong Miao and Wankai Tang for their assistance with ...
arXiv:1608.07362v1
fatcat:xg5d5h5otvbhvmnp756pofsjwi
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