Results 11 to 20 of about 200,465 (268)

A Lossless Watermarking Algorithm Based on Line Pairs for Vector Data

IEEE Access, 2020
With the increasing demand for copyright protection of high-precision and sensitive vector data in Geographical Information System (GIS), research on lossless watermarking has attracted more and more attention.
Na Ren, Qifei Zhou, Changqing Zhu, A-Xing Zhu, Weitong Chen   +4 more
doaj   +1 more source

A new technology for suspended sediment simulation in Lake Taihu, China: Combination of hydrodynamic modeling and remote sensing

Journal of Limnology, 2019
Sediment resuspension is closely related to the endogenetic release of nutrients in Lake Taihu. Thus, understanding the factors associated with sediment resuspension is important. In this study, a new technology, which integrates a hydrodynamic model and
Zhuo Zhang, Changchun Huang, Fei Guo, Zhiyao Song, Di Hu   +4 more
doaj   +1 more source

Automatic Positioning of Street Objects Based on Self-Adaptive Constrained Line of Bearing from Street-View Images

ISPRS International Journal of Geo-Information, 2022
In order to realize the management of various street objects in smart cities and smart transportation, it is very important to determine their geolocation.
Guannan Li, Xiu Lu, Bingxian Lin, Liangchen Zhou, Guonian Lv   +4 more
doaj   +1 more source

Evaluation of Parameterization Schemes for Matric Potential in Frozen Soil in Land Surface Models: A Modeling Perspective

Water Resources Research, 2023
Soil matric potential (SMP) is an important variable in land surface models (LSMs) for regulating soil hydrological processes and highly influenced by soil ice in frozen ground.
Yi Zhao, Zhuotong Nan, Zetao Cao, Hailong Ji, Jianan Hu   +4 more
doaj   +1 more source

Copyright Protection Based on Zero Watermarking and Blockchain for Vector Maps

ISPRS International Journal of Geo-Information, 2021
Zero watermarking does not alter the original information contained in vector map data and provides perfect imperceptibility. The use of zero watermarking for data copyright protection has become a significant trend in digital watermarking research ...
Na Ren, Yazhou Zhao, Changqing Zhu, Qifei Zhou, Dingjie Xu   +4 more
doaj   +1 more source

Virtual System Environments [PDF]

, 2008
Distributed and parallel systems are typically managed with “static” settings: the operating system (OS) and the runtime environment (RTE) are specified at a given time and cannot be changed to fit an application’s needs. This means that every time application developers want to use their application on a new execution platform, the application has to ...
Geoffroy Vallée, Thomas J. Naughton, Hong Ong, Anand Tikotekar, Christian Engelmann, Wesley Bland, Ferrol Aderholdt, Stephen L. Scott   +7 more
openaire   +1 more source

Construction of Stretching-Bending Sequential Pattern to Recognize Work Cycles for Earthmoving Excavator from Long Video Sequences

Sensors, 2021
Counting the number of work cycles per unit of time of earthmoving excavators is essential in order to calculate their productivity in earthmoving projects. The existing methods based on computer vision (CV) find it difficult to recognize the work cycles
Yiguang Wu, Meizhen Wang, Xuejun Liu, Ziran Wang, Tianwu Ma, Yujia Xie, Xiuquan Li, Xing Wang   +7 more
doaj   +1 more source

A New Urban Vitality Analysis and Evaluation Framework Based on Human Activity Modeling Using Multi-Source Big Data

ISPRS International Journal of Geo-Information, 2020
A quantitative study of urban vitality brings new insights for evaluating the external construction environment and internal development power of cities.
Shaojun Liu, Ling Zhang, Yi Long, Yao Long, Mianhao Xu   +4 more
doaj   +1 more source

The virtual computing environment

Proceedings of 3rd IEEE International Symposium on High Performance Distributed Computing, 2002
A network of supercomputers and high-performance workstations appears to be the only reasonable way to provide adequate computing resources for the Grand Challenge problems of the next century. Such a collection of computers and supporting software environments is called a virtual computing environment (VCE).
Rousselle, Philip, Tymann, Paul, Hariri, Salim, Fox, Geoffrey C.   +3 more
openaire   +2 more sources

A Web‐Based Integrated Modeling and Simulation Method for Forest Growth Research

Earth and Space Science, 2019
To facilitate forest research, simulations of the whole forest growth process can be employed to analyze forest dynamics and predict forest yields. Different forest growth models can be integrated for comprehensive process simulation and thus can assist ...
Zaiyang Ma, Min Chen, Beichen Zhang, Ming Wang, Chaoran Shen, Songshan Yue, Yongning Wen, Guonian Lü   +7 more
doaj   +1 more source