Results 11 to 20 of about 10,534,508 (304)
An optimization method of observation matrix based on QR decomposition
Dianzi Jishu Yingyong, 2021 In compressed sensing theory, the most critical issue is the construction of the observation matrix. The factors that affect the image reconstruction quality include the independence between the observation matrix column vectors and the cross-correlation
Zhou Qibin, Wu Jing, Yu Bo
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Geographies, 2023 Social media platforms are valuable data sources in the study of public reactions to events such as natural disasters and epidemics. This research assesses for selected countries around the globe the time lag between daily reports of COVID-19 cases and ...
Innocensia Owuor, Hartwig H. Hochmair
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The Vegetation–Climate System Complexity through Recurrence Analysis
Entropy, 2021 Multiple studies revealed that pasture grasslands are a time-varying complex ecological system. Climate variables regulate vegetation growing, being precipitation and temperature the most critical driver factors.
Andrés F. Almeida-Ñauñay +4 more
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Relationship between El Niño Southern Oscillation and Mexico’s orange yield anomalies
Terra Latinoamericana, 2020 El Niño-Southern Oscillation (ENSO) effects can be measured as its impacts on crop yields. Nonetheless, those effects on main Mexican crops have been scarcely studied.
Fidel Blanco-Macías +5 more
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Retrieving Temperatures and Abundances of Exoplanet Atmospheres with High-resolution Cross-correlation Spectroscopy [PDF]
Astronomical Journal, 2018 High-resolution spectroscopy (R ≥ 25,000) has recently emerged as one of the leading methods for detecting atomic and molecular species in the atmospheres of exoplanets.
M. Brogi, M. Line
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Vital-Signs Detector Based on Frequency-Shift Keying Radar
Sensors, 2020 A frequency-shift keying (FSK) radar in the 2.45-GHz band is proposed for highly accurate vital-signs detection. The measurement accuracy of the proposed detector for the heartbeat is increased by using the cross-correlation between the phase differences
Jae Young Sim +2 more
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Spatiotemporal Variation of the Meteorological and Groundwater Droughts in Central Taiwan
Frontiers in Water, 2021 In recent years, Taiwan has been facing severe water shortages due to extreme drought. In addition, changes in rainfall patterns have resulted in an increasingly notable drought phenomenon, which affects the management and utilization of water resources.
Hsin-Fu Yeh
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Proceedings of the AAAI Conference on Artificial Intelligence, 2018 Cross-correlator plays a significant role in many visual perception tasks, such as object detection and tracking. Beyond the linear cross-correlator, this paper proposes a kernel cross-correlator (KCC) that breaks traditional limitations.
Chen Wang 0033 +3 more
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Sand-Dust Image Enhancement Using Chromatic Variance Consistency and Gamma Correction-Based Dehazing
Sensors, 2022 In sand-dust environments, the low quality of images captured outdoors adversely affects many remote-based image processing and computer vision systems, because of severe color casts, low contrast, and poor visibility of sand-dust images.
Jong-Ju Jeon, Tae-Hee Park, Il-Kyu Eom
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Parameter constraints from cross-correlation of CMB lensing with galaxy clustering [PDF]
Physical Review D, 2017 The lensing convergence measurable with future CMB surveys like CMB-S4 will be highly correlated with the clustering observed by deep photometric large scale structure (LSS) surveys such as the LSST, with cross-correlation coefficient as high as 95 ...
M. Schmittfull, U. Seljak
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