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Spectral Animation Compression

Chao Wang, Yang Liu, Xiaohu Guo, Zichun Zhong, Binh Le, Zhigang Deng
2015 Journal of Computer Science and Technology  
This paper presents a spectral approach to compress dynamic animation consisting of a sequence of homeomorphic manifold meshes.  ...  We compare our results quantitatively with other existing approaches on animation compression, using standard measurement criteria.  ...  In this paper, we propose a spectral animation compression (SAC) approach to perform lossy compression of mesh animations.  ... 
doi:10.1007/s11390-015-1544-z fatcat:msm4byyykbfrlb3e5ja4jhzkiu

Validation of spectral energy for the quantitative analysis of ventricular fibrillation waveform to guide defibrillation in a porcine model of cardiac arrest and resuscitation

Qiyu Yang, Ming Li, Zhaolan Huang, Zhuoyan Xie, Yue Wang, Qin Ling, Xuefen Liu, Wanchun Tang, Longyuan Jiang, Zhengfei Yang
2019 Journal of Thoracic Disease  
However, after the application of CPR and epinephrine, Spectral Energy and AMSA values were significantly increased in animals which were later successfully defibrillated, but did not increase in animals  ...  Receiver operating characteristic (ROC) curves were calculated for both the Spectral Energy and AMSA methods. Spectral Energy and AMSA values gradually decayed during untreated VF in all the animals.  ...  Both the Spectral Energy and AMSA values in the successfully defibrillated animals increased again when CPR and epinephrine were applied, but no responses to CPR and epinephrine were observed in animals  ... 
doi:10.21037/jtd.2019.09.18 pmid:31656658 pmcid:PMC6790466 fatcat:n5htffyox5dinjr52ppi6lh644

Compression of soft-body animation sequences

Zachi Karni, Craig Gotsman
2004 Computers & graphics  
We describe a compression scheme for the geometry component of 3D animation sequences.  ...  The use of these codes will make animated 3D data more accessible for graphics and visualization applications. r  ...  The spectral basis Karni and Gotsman [2] presented a compression technique for static meshes, building on a spectral basis which has properties similar to the PCA eigenvectors.  ... 
doi:10.1016/j.cag.2003.10.002 fatcat:xowntsajyzghjbl7evbkeiuaeu

Microcirculation during cardiac arrest and resuscitation

Michael Fries, Max Harry Weil, Yun-Te Chang, Carlos Castillo, Wanchun Tang
2006 Critical Care Medicine  
In a subset, six animals received 1 mg of epinephrine after 1 min of precordial compression.  ...  Precordial compression partially restored microcirculatory blood flow in each animal but to a significantly greater extent in animals that achieved return of spontaneous circulation.  ... 
doi:10.1097/01.ccm.0000247717.81480.b2 pmid:17114977 fatcat:hs4hgzq6wnbvhitszhhf32a24y

Detection of a spontaneous pulse in photoplethysmograms during automated cardiopulmonary resuscitation in a porcine model

Ralph W.C.G.R. Wijshoff, Toeno van der Sar, Wouter H. Peeters, Rick Bezemer, Paul Aelen, Igor W.F. Paulussen, Simone C.M.A. Ordelman, Alyssa Venema, Paul F.J. van Berkom, Ronald M. Aarts, Pierre H. Woerlee, Gert-Jan Scheffer (+1 others)
2013 Resuscitation  
, if the pulse and compression rates are sufficiently distinct.  ...  Results: In nine animals ROSC was achieved. Throughout the protocol, PPG and ABP frequency content showed strong resemblance.  ...  The spectrograms have been normalized by the magnitude of the spectral compression component in the signal at the beginning of the trace shown. This is the same animal (#N1) as in Fig. 4a.  ... 
doi:10.1016/j.resuscitation.2013.07.019 pmid:23907100 fatcat:kuatofmm2zbsvpcxml2yzgkwl4

Changes of frequency spectrum of the CSF pulse wave caused by supratentorial epidural brain compression

H Takizawa, T Gabra-Sanders, J D Miller
1986 Journal of Neurology, Neurosurgery and Psychiatry  
compression advanced.  ...  The animal was fixed in a stereotaxic frame in the sphinx position.  ...  The animal was fixed in a stereotaxic frame in the sphinx position.  ... 
doi:10.1136/jnnp.49.12.1367 pmid:3806113 pmcid:PMC1029120 fatcat:3ma7rdyqojbxpoxbjlbjwcibce

Compressed dynamic mesh sequence for progressive streaming

Bailin Yang, Zhaoyi Jiang, Jiantao Shangguan, Frederick W. B. Li, Chao Song, Yibo Guo, Mingliang Xu
2018 Computer Animation and Virtual Worlds  
Spectral Wavelet Transform and CSPECK Encoding Wavelet transform is widely used in data compression.  ...  Here, we review some basic definitions about spectral graph theory [33] and show how we extend its application to construct spectral graph wavelets for compressing a DMS.  ... 
doi:10.1002/cav.1847 fatcat:cldurystcbf5lmuzhjcugc2f7u

Introduction to the special issue on image-based modeling, rendering, and animation

Heung-Yeung Shum, E. Petajan, J. Ostermann
2003 IEEE transactions on circuits and systems for video technology (Print)  
These papers are organized into four sections: survey, modeling and rendering, compression and animation.  ...  The first, "Spectral Analysis for Sampling Image-Based Rendering Data" by Zhang and Chen, presents a spectral analysis of the surface plenoptic function, which collects all the rays emitted/reflected from  ... 
doi:10.1109/tcsvt.2003.817349 fatcat:kf2scx4la5f3zldcigtapiqj74

Suitability of VVC and HEVC for Video Telehealth Systems

Muhammad Arslan Usman, Muhammad Rehan Usman, Rizwan Ali Naqvi, Bernie Mcphilips, Christopher Romeika, Daniel Cunliffe, Christos Politis, Nada Philip
2021 Computers Materials & Continua  
Video compression in medical video streaming is one of the key technologies associated with mobile healthcare.  ...  The presented analysis highlights the impact of compression artefacts on the perceptual quality of HEVC and VVC processed videos.  ...  Like HEVC compressed videos, similar trend can be seen for VVC compressed videos when it comes to videos containing high spectral content.  ... 
doi:10.32604/cmc.2021.014614 fatcat:rhhatjhltncz3iqvpqenhdeiwe

Fast Spatio-temporal Compression of Dynamic 3D Meshes [article]

Gerasimos Arvanitis, Aris S. Lalos, Konstantinos Moustakas
2021 arXiv   pre-print
In this work, we present an approach for dynamic 3D mesh compression, that effectively exploits the spatio-temporal coherence of animated sequences, achieving low compression ratios without noticeably  ...  affecting the visual quality of the animation.  ...  the animated mesh.  ... 
arXiv:2111.10105v1 fatcat:5djqgg42rnhgtm55prguvk4dlu

Study on cerebral vascular image of spectral domain optical coherence tomography with compressive sensing

Ping Xu, Zhaoyang Jin, Yong Yang
We propose a novel compressed sensing method to retrieve cerebral vascular image for spectral-domain optical coherence tomography (SD OCT).  ...  The compressed sensing method based on l1 norm minimization is applied to reconstruct each A-scan data.  ...  Animal Preparation An adult Sprague-Dawley rat weighing 250±20 g (from Zhejiang Animal Center) is anesthetized with an intraperitoneal injection of urethane (800 mg/kg).  ... 
doi:10.24297/ijct.v11i3.1165 fatcat:6hkvwhrw2zavfi54kjwmqem2f4

Photoplethysmography-Based Algorithm for Detection of Cardiogenic Output During Cardiopulmonary Resuscitation

Ralph W. C. G. R. Wijshoff, Antoine M. T. M. van Asten, Wouter H. Peeters, Rick Bezemer, Gerrit Jan Noordergraaf, Massimo Mischi, Ronald M. Aarts
2015 IEEE Transactions on Biomedical Engineering  
The frequency spectrum of the compression-free PPG signal was estimated via an autoregressive model, and the relationship between the spectral peaks was analyzed to identify the pulse rate (PR).  ...  A compression-free PPG signal which estimates the spontaneous pulse waveform, was obtained by subtracting the compression component, modeled by a harmonic series.  ...  CC: chest compressions; PR: pulse rate; PSD: power spectral density.  ... 
doi:10.1109/tbme.2014.2370649 pmid:25415981 fatcat:3vh4ryffeffb5n2eg4bbawx2bm

Page 105 of None Vol. 16, Issue 5 [page]

1987 None  
Compressed spectral array (CSA) spectral edge. of 1 representative animal from group of animals (40% of total) that experienced an abolition of spectral edge after fluid-percussion brain injury and treatment  ...  with Win-(+). of animals), frontal cortex (80% of animals), striatum (80% of animals), midbrain/thalamus (100% of animals), hippocampus (50% of animals), hypothalamus (80% of animals), pons (100% of animals  ... 

The hearing aid dilemma: amplification, compression, and distortion of the neural code [article]

Alex Armstrong, Chi Chung Lam, Shievanie Sabesan, Nicholas A Lesica
2020 bioRxiv   pre-print
the spectral and temporal contrast of incoming sounds, and amplification, which produces high intensities that distort the neural code even with normal hearing.  ...  To identify the reasons for this failure, we studied the underlying neural code using large-scale single-neuron recordings in gerbils, a common animal model of human hearing.  ...  The amplification and compression parameters for the hearing aid were custom fit to each 110 ear of each animal based on the measured ABR threshold shifts.  ... 
doi:10.1101/2020.10.02.323626 fatcat:ls3ipvj2trdzhj4dtxkwp6rqua

Accelerated chemical shift imaging of hyperpolarized13C metabolites

Jian-Xiong Wang, Matthew E. Merritt, A. Dean Sherry, Craig R. Malloy
2016 Magnetic Resonance in Medicine  
Results-Imaging results from phantoms and in-vivo animals using hyperpolarized 13 C tracers demonstrate that when the entire CSI data set is treated as a single object, compressed sensing can be satisfactorily  ...  advantage of conventional CSI in providing high sensitivity and a large spectral bandwidth.  ...  The authors acknowledge the hyperpolarization operation and animal handling team Dr. L. Fidelino, Dr. X.D. Wen and T. Hever.  ... 
doi:10.1002/mrm.26286 pmid:27373705 pmcid:PMC5370552 fatcat:vcbwx6s7vnhqrd6tifwbagypmy
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