Results 1 to 10 of about 185,121 (161)

A Novel Hierarchical Coding Progressive Transmission Method for WMSN Wildlife Images [PDF]

open access: yesSensors, 2019
In the wild, wireless multimedia sensor network (WMSN) communication has limited bandwidth and the transmission of wildlife monitoring images always suffers signal interference, which is time-consuming, or sometimes even causes failure.
Wenzhao Feng   +4 more
doaj   +4 more sources

View-Dependent Progressive Transmission Method for 3D Building Models

open access: yesISPRS International Journal of Geo-Information, 2021
Complex 3D building models, because of their huge data volume, almost always result in transmission congestion, which leads to poor user experience. To reduce the real-time transmission pressure, a novel view-dependent progressive transmission method was
Yuchang Sun   +4 more
doaj   +3 more sources

Structure-Level 3D Building Model Encoding Method for Progressive Transmission

open access: yesISPRS International Journal of Geo-Information, 2021
Progressive encoding and transmission, i.e., a crucial technical foundation of 3D Web Geographic Information Systems (WebGIS), addresses the contradiction between massive 3D building data and limited network transmission capacity.
Jiwei Dong   +5 more
doaj   +1 more source

Progressive Transmission of 3D Building Models based on String Grammars and Planar Half-Spaces [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
As there are numerous applications for 3D city models with a wide range of model requirements regarding geometric accuracy and granularity, there is also a high demand for such models at different levels of detail (LOD). And although their reconstruction
M. Kada
doaj   +1 more source

A Secret Image Sharing Method Using Integer Wavelet Transform

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
A new image sharing method, based on the reversible integer-to-integer (ITI) wavelet transform and Shamir's (r,m) threshold scheme is presented, that provides highly compact shadows for real-time progressive transmission.
Ching-Chung Li, Chin-Pan Huang
doaj   +2 more sources

Optimal Progressive Pitch for OneWeb Constellation with Seamless Coverage

open access: yesSensors, 2022
Large-scale broadband low earth orbit (LEO) satellite systems have become a possibility due to decreased launch costs and rapidly evolving technology. Preventing huge LEO satellite constellations from interfering with the geostationary earth orbit (GSO ...
Cheng Zou   +5 more
doaj   +1 more source

A method for rapid transmission of multi-scale vector river data via the Internet

open access: yesGeodesy and Geodynamics, 2012
Due to the conflict between huge amount of map data and limited network bandwidth, rapid transmission of vector map data over the Internet has become a bottleneck of spatial data delivery in web-based environment.
Yang Weifang, Jonathon Li
doaj   +1 more source

Progressive transmission of subdivision surfaces

open access: yesComputational Geometry, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ulf Labsik   +3 more
openaire   +3 more sources

Fully spatial and SNR scalable, SPIHT-based image coding for transmission over heterogenous networks

open access: yesJournal of Telecommunications and Information Technology, 2003
This paper presents a fully scalable image coding scheme based on the set partitioning in hierarchical trees (SPIHT) algorithm. The proposed algorithm, called fully scalable SPIHT (FS-SPIHT), adds the spatial scalability feature to the SPIHT algorithm ...
Habibollah Danyali
doaj   +1 more source

Progressive Image Transmission Based on Joint Source-Channel Decoding Using Adaptive Sum-Product Algorithm

open access: yesEURASIP Journal on Image and Video Processing, 2007
A joint source-channel decoding method is designed to accelerate the iterative log-domain sum-product decoding procedure of LDPC codes as well as to improve the reconstructed image quality.
David G. Daut, Weiliang Liu
doaj   +2 more sources

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