Results 11 to 20 of about 184,652 (266)

HOW DOES SHANNON’S SOURCE CODING THEOREM FARE IN PREDICTION OF IMAGE COMPRESSION RATIO WITH CURRENT ALGORITHMS? [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Images with large volumes are generated daily with the advent of advanced sensors and platforms (e.g., satellite, unmanned autonomous vehicle) of data acquisition. This incurs issues on the storage, processing, and transmission of images. To address such
X. Cheng, Z. Li, Z. Li
doaj   +1 more source

Accuracy analysis of lossless and lossy disparity map compression

open access: yesAin Shams Engineering Journal, 2022
In this paper, we analysed lossless and lossy compression of disparity (depth) images with low range resolution. For that goal, the well-known publicly available Middlebury dataset is used with stereo image pairs, their disparity ground truths and ...
Saad Merrouche   +3 more
doaj   +1 more source

Investigation on the Potential of High Efficiency for Internal Combustion Engines

open access: yesEnergies, 2018
The current brake thermal efficiency of advanced internal combustion engines is limited to 50%, and how to further improve the efficiency is a challenge.
Haifeng Liu   +5 more
doaj   +1 more source

Experimental Investigation of Diluents Components on Performance and Emissions of a High Compression Ratio Methanol SI Engine

open access: yesEnergies, 2019
Increasing compression ratio and using lean burn are two effective techniques for improving engine performance. Methanol has a wide range of sources and is a kind of suitable fuel for a high-compression ratio spark-ignition lean burn engine.
You Zhou   +5 more
doaj   +1 more source

Compression of Pulsed Infrared Thermography Data With Unsupervised Learning for Nondestructive Evaluation of Additively Manufactured Metals

open access: yesIEEE Access, 2022
Additive manufacturing (AM) of high-strength metals, which is typically based on laser powder bed fusion (LPBF), can introduce microscopic pores in the AM metal.
Xin Zhang   +3 more
doaj   +1 more source

Particle acceleration in thick parallel shocks with high compression ratio [PDF]

open access: yesAstronomy & Astrophysics, 2005
We report studies on first-order Fermi acceleration in parallel modified shock waves with a large scattering center compression ratio expected from turbulence transmission models. Using a Monte Carlo technique we have modeled particle acceleration in shocks with a velocity ranging from nonrelativistic to ultrarelativistic and a thickness extending from
Virtanen, Joni J. P., Vainio, Rami
openaire   +2 more sources

Vessel AIS Trajectory Online Compression Based on Scan-Pick-Move Algorithm Added Sliding Window

open access: yesIEEE Access, 2020
The trajectory data of vessel AIS (automatic identification system) has important theoretical and application value for information supporting decisions. However, large sizes lead to difficulties in storing, querying, and processing.
Shuang Sun   +3 more
doaj   +1 more source

Investigation on axial resistance of steel reinforced concrete cross-shaped columns exposed to high temperature

open access: yesCase Studies in Construction Materials, 2022
Steel reinforced concrete (SRC) special-shaped columns have the advantages of high spatial utilization, flexible layout and good economic benefits, which are used in high-rise buildings.
Yuzhuo Wang   +5 more
doaj   +1 more source

A Fast Fractal Based Compression for MRI Images

open access: yesIEEE Access, 2019
Magnetic resonance imaging (MRI), which assists doctors in determining clinical staging and expected surgical range, has high medical value. A large number of MRI images require a large amount of storage space and the transmission bandwidth of the PACS ...
Shuai Liu   +3 more
doaj   +1 more source

A test pattern generation method with high compression ratio

open access: yesIEICE Electronics Express, 2011
This paper proposes a test pattern generation and compression method to reduce test volume for VLSI testing. Unlike traditional approaches, the proposed scheme predefines linear relationships between vectors or within a vector of a test sequence firstly. Then, it determines test patterns by fault simulation.
Liang, Feng   +2 more
openaire   +2 more sources

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