Results 11 to 20 of about 65,315 (261)
Spatial correlations in compressible granular flows [PDF]
Physical Review E, 1998 For a freely evolving granular fluid, the buildup of spatial correlations in density and flow field is described using fluctuating hydrodynamics. The theory for incompressible flows is extended to the general, compressible case, including longitudinal velocity and density fluctuations, and yields qualitatively different results for long range ...
Van Noije, T. P. C. +2 more
openaire +5 more sources
Lip forgery detection via spatial-frequency domain combination
网络与信息安全学报, 2022 In recent years, numerous “face-swapping” videos have emerged in social networks, one of the representatives is the lip forgery with speakers.While making life more entertaining for the public, it poses a significant crisis for personal privacy and ...
Jiaying LIN +3 more
doaj +3 more sources
Prioritized Transmission Control of Point Cloud Data Obtained by LIDAR Devices
IEEE Access, 2020 Smart monitoring, particularly at intersections, is a promising service that is being considered for the concept of smart cities. A network of light detection and ranging (LIDAR) sensors, which generates point cloud data in real time, can be used to ...
Keiichiro Sato +6 more
doaj +1 more source
Online vehicle trajectory compression algorithm based on motion pattern recognition
IET Intelligent Transport Systems, 2022 With the popularity of various portable mobile devices with positioning functions, a large amount of spatial‐temporal trajectory data has emerged. To effectively compress large‐scale vehicle trajectory data and serve intelligent transportation system, we
Kaixuan Zhang, Dongbao Zhao, Wenkai Liu
doaj +1 more source
Perifoveal spatial compression
Journal of Vision, 2013 We report a strong compression of space around a visual anchor presented in the near visual periphery (
Zimmermann, E., Fink, G., Cavanagh, P.
openaire +3 more sources
A Multiresolution Vector Data Compression Algorithm Based on Space Division
ISPRS International Journal of Geo-Information, 2020 Vector data compression can significantly improve efficiency of geospatial data management, visualization and data transmission over internet. Existing compression methods are either based on information theory for lossless compression mainly or based on
Dongge Liu +5 more
doaj +1 more source
Image Compression Network Structure Based on Multiscale Region of Interest Attention Network
Remote Sensing, 2023 In this study, we proposed a region of interest (ROI) compression algorithm under the deep learning self-encoder framework to improve the reconstruction performance of the image and reduce the distortion of the ROI.
Jing Zhang +4 more
doaj +1 more source
Spatial regionalization based on optimal information compression
Communications Physics, 2022 Aggregating fine-grained data allows for the reduction of the impact of noise and outliers when analysing real-world systems. Here the author proposes a principled and efficient method based on information theory to compress spatial systems into ...
Alec Kirkley
doaj +1 more source
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Generic text-based compression models are simple and fast but there are two issues that needs to be addressed. They cannot leverage the structure that exists in data to achieve better compression and there is an unnecessary decompression step before the
A. Khandelwal, K. S. Rajan
doaj +1 more source
Social and Economic Space Compression in Border Areas: the Case of the Northwestern Federal District [PDF]
Балтийский регион, 2015 The so-called “compression” of social and economic space has been the subject of quite a few studies in the past decades. There are two principle types of compression: communicative, that is, associated with the development of transport and information ...
Romanova E. +2 more
doaj +1 more source