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High-Ratio Lossy Compression: Exploring the Autoencoder to Compress Scientific Data
IEEE Transactions on Big Data, 2023Scientific simulations on high-performance computing (HPC) systems can generate large amounts of floating-point data per run. As compared to lossless compressors, lossy compressors, such as SZ and ZFP, can reduce data volume more aggressively while maintaining the usefulness of the data.
Tong Liu 0030 +5 more
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High compression ratio image compression
1993 IEEE International Symposium on Circuits and Systems, 2002An image compression method is proposed. It makes use of the wavelet transform (WT) with better frequency localization and the adaptive hierarchical vector quantization (AHVQ) technique. The WT provides a multifrequency channel representation for the image from which proper coding methods can be drawn.
Sheng Zhong, Qing-Yun Shi, Min-Teh Cheng
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THUDDING in High Compression Ratio Engines
SAE Technical Paper Series, 1959<div class="section abstract"><div class="htmlview paragraph">THUD—a noise due to high rates of pressure rise in the absence of surface ignition—is the subject of the investigations described in this paper. The tests were performed on 12/1 compression ratio engines.</div><div class="htmlview paragraph">The authors found that ...
W. E. Morris, D. C. Fariss
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Structural transformations in metals at high compression ratios
Physics-Uspekhi, 2009As analysis of crystal structure stability against homogeneous deformation is carried out for simple and transition metals with body-centered cubic (bcc) and face-centered cubic (fcc) lattices under pressure. It is shown that at high compression ratios a crystal lattice can turn unstable against shear deformations, leading to new lower-symmetry ...
Yurii Kh Vekilov, Oleg M Krasilnikov
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An Investigation Into OME3 on a High Compression Ratio Engine
ASME 2020 Internal Combustion Engine Division Fall Technical Conference, 2020Abstract For decades, alternative fuels have been studied to further engine efficiency and lower combustion emissions. Of these fuels, biodiesel, alcohols, and ethers have shown advantageous benefits of improved mixing capability or reduced combustion emissions.
Simon LeBlanc +6 more
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High compression ratio algorithm for power quality signals
2015 IEEE 24th International Symposium on Industrial Electronics (ISIE), 2015This paper presents a compression algorithm for power quality (PQ) signals, which does not separate the signal into stationary and transient components. The proposed algorithm is composed of a number of different compression techniques which are combined to improve both compression ratio and total computing time.
Roque Eduardo Dapper +3 more
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Improving Diagnosis Resolution and Performance at High Compression Ratios
2018 IEEE International Test Conference (ITC), 2018Recent innovations in Test Compression are enabling implementation of very high compression ratios. This paper analyzes the impact of high compression on resolution and performance of conventional diagnosis methods. The diagnosis resolution is observed to be unaffected by increasing the compression ratio if there are sufficient failures and patterns ...
Sameer Chillarige +5 more
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Optica Imaging Congress (3D, COSI, DH, FLatOptics, IS, pcAOP), 2023
We propose a simple yet powerful mask design for high-speed, high-pixel count compressive temporal imaging. Simulation and experimental results demonstrate a reconstruction quality of over 30dB when recovering 512 frames of 2K videos from a single snapshot.
Felipe Guzmán +3 more
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We propose a simple yet powerful mask design for high-speed, high-pixel count compressive temporal imaging. Simulation and experimental results demonstrate a reconstruction quality of over 30dB when recovering 512 frames of 2K videos from a single snapshot.
Felipe Guzmán +3 more
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Error-Controlled Lossy Compression Optimized for High Compression Ratios of Scientific Datasets
2018 IEEE International Conference on Big Data (Big Data), 2018Today’s scientific simulations require a significant reduction of the data size because of extremely large volumes of data they produce and the limitation of storage bandwidth and space. If the compression is set to reach a high compression ratio, however, the reconstructed data are often distorted too much to tolerate.
Xin Liang 0001 +7 more
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