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- research-articleJuly 2024
Enhancing precision of root-zone soil moisture content prediction in a kiwifruit orchard using UAV multi-spectral image features and ensemble learning
- Shidan Zhu,
- Ningbo Cui,
- Li Guo,
- Huaan Jin,
- Xiuliang Jin,
- Shouzheng Jiang,
- Zongjun Wu,
- Min Lv,
- Fei Chen,
- Quanshan Liu,
- Mingjun Wang
Computers and Electronics in Agriculture (COEA), Volume 221, Issue Chttps://doi.org/10.1016/j.compag.2024.108943Graphical abstractDisplay Omitted
Highlights- Extracting pure kiwifruit canopy information improves SMC estimation effectively.
- The optimal band combination algorithm efficiently screens band and FVC variables.
- The ensemble learning model for estimating SMC at different root-...
Accurate and real-time monitoring of soil moisture content (SMC) is of utmost importance for effective field irrigation and maximizing crop water productivity. However, a comprehensive investigation into the inversion study for determining ...
- research-articleApril 2024
Onfield estimation of quality parameters in alfalfa through hyperspectral spectrometer data
Computers and Electronics in Agriculture (COEA), Volume 216, Issue Chttps://doi.org/10.1016/j.compag.2023.108463Highlights- Hyperspectral data from a spectrometer was used for trait estimations in alfalfa.
- LASSO, Elastic net and PLS models were employed to train and validate the dataset.
- Different wavebands were selected as a function of the parameter ...
Alfalfa is a forage of vast importance around the world. In the past, near-infrared spectroscopy (NIRS) technique have been explored in the lab to determine quality traits such as fibre content in dried and ground material. During the last decade,...
- research-articleNovember 2023
Comparing the predictive ability of Sentinel-2 multispectral imagery and a proximal hyperspectral sensor for the estimation of pasture nutritive characteristics in an intensive rotational grazing system
Computers and Electronics in Agriculture (COEA), Volume 214, Issue Chttps://doi.org/10.1016/j.compag.2023.108275Highlights- Models were trained to use Sentinel-2 multispectral data to predict pasture nutrient concentration.
- Sentinel-2 had comparable prediction accuracy to a proximal hyperspectral sensor.
- Sensitive spectral regions varied between the ...
Using remote sensing to estimate the nutritive characteristics of pasture in livestock systems is a rapidly developing area that has the potential to improve pasture management and utilisation and in turn improve livestock productivity. The ...
- research-articleFebruary 2023
UAS-based imaging for prediction of chickpea crop biophysical parameters and yield
- Asaf Avneri,
- Shlomi Aharon,
- Anna Brook,
- Guy Atsmon,
- Evgeny Smirnov,
- Roy Sadeh,
- Shahal Abbo,
- Zvi Peleg,
- Ittai Herrmann,
- David J. Bonfil,
- Ran Nisim Lati
Computers and Electronics in Agriculture (COEA), Volume 205, Issue Chttps://doi.org/10.1016/j.compag.2022.107581Highlights- RGB-based data facilitate biomass LAI and grain yield prediction in chickpea.
- Data fusion improves the prediction accuracy and robustness.
- The SVM model adequately handled non-linear biomass and LAI data sets.
- UAS with RGB ...
Chickpea (Cicer arietinum L.) is a key legume crop grown in many semi-arid areas. Traditionally, chickpea is a rainfed spring crop, but in certain countries it has become an irrigated crop. The main objective of this study was to evaluate the ...
- research-articleDecember 2022
Birdbox: Exploring the User Experience of Crossmodal, Multisensory Data Representations
MUM '22: Proceedings of the 21st International Conference on Mobile and Ubiquitous MultimediaPages 12–21https://doi.org/10.1145/3568444.3568455We contribute to an improved understanding of how physical multisensory data representations are experienced and how specific modalities affect the user experience (UX). We investigate how people make sense of Birdbox, a crossmodal data representation ...
- ArticleOctober 2018
Implementation of Information Security in the EU Information Systems: An Estonian Case Study
Challenges and Opportunities in the Digital EraPages 150–163https://doi.org/10.1007/978-3-030-02131-3_15AbstractIn this paper we present the findings of a case-study on IT system security in the area of EU internal security and justice. We have analyzed the implementation of information security for the EU information systems EURODAC, SIS II and VIS in case ...
- articleJuly 2012
Simulation based knowledge elicitation: Effect of visual representation and model parameters
Expert Systems with Applications: An International Journal (EXWA), Volume 39, Issue 9Pages 8479–8489https://doi.org/10.1016/j.eswa.2012.01.170Since much knowledge is tacit, eliciting knowledge is a common bottleneck during the development of knowledge-based systems. Visual interactive simulation (VIS) has been proposed as a means for eliciting experts' decision-making by getting them to ...
- ArticleJuly 2011
Face synthesis from near-infrared to visual light spectrum using quotient image and kernel-based multifactor analysis
ICME '11: Proceedings of the 2011 IEEE International Conference on Multimedia and ExpoPages 1–4https://doi.org/10.1109/ICME.2011.6012113This paper addresses the problem of synthesizing an artificial visual light (VIS) facial image from near-infrared (NIR) input. After extensively assessing photic characteristics of tissues at human skin surface, we propose a framework for this task. ...
- ArticleMay 2010
VIS Analyzer: A Visual Assistant for VIS Verification and Analysis
ISORC '10: Proceedings of the 2010 13th IEEE International Symposium on Object/Component/Service-Oriented Real-Time Distributed ComputingPages 250–254https://doi.org/10.1109/ISORC.2010.41Formal verification plays an important role in demonstrating the quality of safety-critical systems such as nuclear power plants. We have used the VIS verification system to determine behavioral equivalence between two successive revisions in developing ...
- articleMay 2007
Field-derived spectral characteristics to classify conventional and conservation agricultural practices
Computers and Electronics in Agriculture (COEA), Volume 57, Issue 1Pages 47–61https://doi.org/10.1016/j.compag.2007.01.017Field-derived hyperspectral reflectance of soil and wheat were collected during a wheat-growing season (February, March and April) using a portable spectrophotometer in an experimental field receiving conventional and conservation agricultural ...
- ArticleJuly 2005
Embedded Progressive Joint Source-Channel Coding Based on Zerotree
CGIV '05: Proceedings of the International Conference on Computer Graphics, Imaging and VisualizationPages 141–146https://doi.org/10.1109/CGIV.2005.35This paper proposes a joint source-channel coding scheme based on integer wavelet high frequency zerotree, which can produce embedded progressive code stream with low bit-rate. In this scheme, by scanning the source with a set of pre-set thresholds, ...
- research-articleNovember 2002
Measuring the Performance of Multimedia Instruction Sets
IEEE Transactions on Computers (ITCO), Volume 51, Issue 11Pages 1317–1332https://doi.org/10.1109/TC.2002.1047756Many microprocessor instruction sets include instructions for accelerating multimedia applications such as DVD playback, speech recognition, and 3D graphics. Despite general agreement on the need to support this emerging workload, there are considerable ...
- research-articleApril 1996
UltraSparc I: A Four-Issue Processor Supporting Multimedia
UltraSPARC-I is a general-purpose processor implementing the SPARC V9 64-bit RISC architecture. In addition to supporting this Instruction Set Architecture (ISA), UltraSPARC-I includes over 30 new multimedia instructions (VIS - Visual Instruction Set) ...