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Thin-bed reflectivity inversion and some applications

S. Chopra, J.P. Castagna, Y. Xu
2009 First Break  
Thin-bed reflectivity inversion is a useful process which should be utilized for extracting meaningful information from surface seismic data in the characterization of thin reservoirs.  ...  Thin-bed reflectivity inversion is a form of spectral inversion which produces sparse reflectivity estimates.  ...  The thinbed reflectivity method described here is commercially referred to as ThinMan, a trademark owned by FusionGeo, Houston.  ... 
doi:10.3997/1365-2397.2009009 fatcat:7it752rmnnhupezcvrkbm4bbge

Image Enhancement through Denoising and Retrieval of Vegetation Parameters from Landsat8

K. Sateesh Kumar, G. Sreenivasulu
2018 International Journal on Advanced Science, Engineering and Information Technology  
This paper proposed the enhancement of Landsat8 imagery through an Un-decimated Dual-Tree Complex Wavelet Transform (UDT-CWT) based denoising method and modified homographic filter for edge preservation  ...  The high-resolution image is more preferable than moderate resolution image to retrieve VI. Image denoising and enhancing the spatial resolution helps to retrieve the parameters well and accurate.  ...  Low pass filters, and H represents high pass Filters. , Wavelet functions represent Complex Wavelet .  ... 
doi:10.18517/ijaseit.8.1.4059 fatcat:7rsq6ysxqnfdlapsgbxavrymj4


Антон Андреевич Коросов, Артем Владимирович Моисеев, Дмитрий Викторович Поздняков, Anton Korosov, Artem Moiseev, Dmitry Pozdnyakov
2018 Transactions of the Karelian Research Centre of the Russian Academy of Sciences  
The tool permits to combine high spectral but lower spatial resolution optical data from one satellite sensor with higher spatial resolution but lower spectral resolution data from the other one into an  ...  image possessing simultaneously both high spectral and high spatial resolution qualities.  ...  These deficiencies preclude the use of this sensor for efficient retrieval of water quality parameters in situations of optically complex or shallow waters.  ... 
doi:10.17076/lim692 fatcat:nivqfmpdpve7bfhxe4dfa6qhnu

Satellite hyperspectral remote sensing for estimating estuarine and coastal water quality

V.E. Brando, A.G. Dekker
2003 IEEE Transactions on Geoscience and Remote Sensing  
The successful launch of Hyperion in November 2000 bridged the gap between the high-resolution (spatial and spectral) airborne remote sensing and the lower resolution satellite remote sensing.  ...  A matrix inversion method was applied to retrieve concentrations of chlorophyll, colored dissolved organic matter, and suspended matter, which were comparable to those estimated in the field on the days  ...  Maxwell for the access to the EHMP water quality variables concentrations dataset, J. Anstee and N. Pinnel for the field and lab support, C.  ... 
doi:10.1109/tgrs.2003.812907 fatcat:dgsxuase2rdtzo3ltfjkwkxfk4

Effects of Per-Pixel Variability on Uncertainties in Bathymetric Retrievals from High-Resolution Satellite Images

Elizabeth Botha, Vittorio Brando, Arnold Dekker
2016 Remote Sensing  
Empirical approaches, using spectral information to derive water depth from satellite data, have been implemented for over 30 years [6] [7] [8] .  ...  Increased sophistication of high spatial resolution multispectral satellite sensors provides enhanced bathymetric mapping capability.  ...  We are grateful to Simon Allen, skipper of the RK SCRAP, for acquiring the in situ depth estimates.  ... 
doi:10.3390/rs8060459 fatcat:a7maurlrnndqxcgnkbihgei4x4

Variable-depth streamer acquisition: Broadband data for imaging and inversion

Robert Soubaras, Yves Lafet
2013 Geophysics  
Here, we show results from West African, where a 2.5-150Hz bandwidth was achieved, and Western Australia. The broad bandwidth translates into improved results for acoustic impedance inversion.  ...  The paper then describes how this new technique provides a method of deghosting data acquired with ghost notch diversity, such as slant streamer acquisition.  ...  Acknowledgements We thank Total, the Republic of Gabon and Cobalt for permission to show the real data examples from West Africa.  ... 
doi:10.1190/geo2012-0297.1 fatcat:dx7savg2dfbyvoptfavs2co2iq

2019 Index IEEE Transactions on Geoscience and Remote Sensing Vol. 57

2019 IEEE Transactions on Geoscience and Remote Sensing  
., Refo-cusing and Zoom-In Polar Format Algorithm for Curvilinear Spotlight SAR Imaging on Arbitrary Region of Interest; TGRS Oct. 2019 7995-8010 Hu, T., see Kang, Z., TGRS Jan. 2019 181-193 Hu, T.,  ...  El-Alem, A., +, TGRS Oct. 2019 7955-7971 Novel Spectra-Derived Features for Empirical Retrieval of Water Quality Parameters: Demonstrations for OLI, MSI, and OLCI Sensors.  ...  ., +, TGRS Sept. 2019 6292-6310 A Statistical Inverse Method for Gridding Passive Microwave Data With Mixed Measurements.  ... 
doi:10.1109/tgrs.2020.2967201 fatcat:kpfxoidv5bgcfo36zfsnxe4aj4

Hyperspectral and Multispectral Image Fusion Techniques

2020 International journal of recent technology and engineering  
So to enhance the visual quality of the hyperspectral image, we can perform image fusion with high spatial information multispectral image.  ...  The hyper spectral image covers a broad range of wavelengths in electromagnetic spectrum, spanning from visible to near-infrared region.  ...  [4] proposed a maximum a posteriori(MAP) estimator for improving the spatial resolution of HSI using co-registered high spatial-resolution imagery from an auxiliary sensor.  ... 
doi:10.35940/ijrte.e4904.018520 fatcat:bid4ddgg3fembco3kfbv5wvb7u

Retrieval of Water Quality from UAV-Borne Hyperspectral Imagery: A Comparative Study of Machine Learning Algorithms

Qikai Lu, Wei Si, Lifei Wei, Zhongqiang Li, Zhihong Xia, Song Ye, Yu Xia
2021 Remote Sensing  
In this study, nine machine learning algorithms are systematically evaluated for the inversion of water quality parameters including chlorophyll-a (Chl-a) and suspended solids (SS) with UAV-borne hyperspectral  ...  inversion of water quality parameters.  ...  Acknowledgments: The datasets are provided by the Intelligent Data Extraction and Remote Sensing Analysis Group of Wuhan University (RSIDEA).  ... 
doi:10.3390/rs13193928 fatcat:jafgz2xhgzezvl6jueznafwr7q

Monitoring Beach Topography and Nearshore Bathymetry Using Spaceborne Remote Sensing: A Review

Edward Salameh, Frédéric Frappart, Rafael Almar, Paulo Baptista, Georg Heygster, Bertrand Lubac, Daniel Raucoules, Luis Pedro Almeida, Erwin W. J. Bergsma, Sylvain Capo, Marcello De Michele, Deborah Idier (+6 others)
2019 Remote Sensing  
Traditional methods such as ground, ship-borne, and airborne surveys suffer from limited spatial coverage and temporal sampling due to logistical constraints and high costs which limit their ability to  ...  With high anthropogenic pressure and the effects of climate change (e.g., sea level rise) on coastal regions, there is a greater need for accurate and up-to-date information about the topography of these  ...  Bathymetry Inversion from Aquatic Color Data Aquatic color radiometry (ACR) is a technique used to retrieve biogeochemical and water quality parameters of the marine and continental water near-surface  ... 
doi:10.3390/rs11192212 fatcat:c2uhgi4mkzdefbbhj27wuckb7q

2015 Index IEEE Transactions on Geoscience and Remote Sensing Vol. 53

2015 IEEE Transactions on Geoscience and Remote Sensing  
., +, TGRS Jan. 2015 51-69 A Wavelet-Enhanced Inversion Method for Water Quality Retrieval From High Spectral Resolution Data for Complex Waters.  ...  Evaluation of a MISR-Based High-Resolution Aerosol Retrieval Method Using AERONET DRAGON Campaign Data.  ...  Radiofrequency interference A Methodology to Determine Radio-Frequency Interference in AMSR2 Observations.  ... 
doi:10.1109/tgrs.2015.2513444 fatcat:zuklkpk4gjdxjegoym5oagotzq

Application of acoustic full waveform inversion to retrieve high-resolution temperature and salinity profiles from synthetic seismic data

J. Kormann, B. Biescas, N. Korta, J. de la Puente, V. Sallarès
2011 Journal of Geophysical Research  
Sallarès (2011), Application of acoustic full waveform inversion to retrieve high-resolution temperature and salinity profiles from synthetic seismic data,  ...  The results demonstrate the applicability of the method for synthetic data, as well as its potential to define oceanographic features along 2-D transects at full ocean depth with excellent lateral resolution  ...  The authors are grateful to REPSOL for supporting this work through the Kaleidoscope project. Likewise, we also acknowledge the EU-funded GO-project (EC-NEST-15603) as well as  ... 
doi:10.1029/2011jc007216 fatcat:m5lfv4my2bdf5nt7j2ggokqotq

Inversion of Nearshore X-Band Radar Images to Sea Surface Elevation Maps

Pavel Chernyshov, Teodor Vrecica, Yaron Toledo
2018 Remote Sensing  
Then, after a phase shift correction, an inverse continuous wavelet transform is applied. The procedure is finalized by a calibration of the retrieved maps.  ...  A new method to invert X-band radar images for linear shoaling conditions is proposed. The commonly used approach for this type of inverse problems is the Fourier transform.  ...  Inversion of the Simulated Radar Images into Surface Elevations (Wavelet Analysis) In this section, a wavelet method for radar image inversion to surface elevation maps is introduced.  ... 
doi:10.3390/rs10121919 fatcat:u4fiokgufjemtcyjnf6ij6o5ve

2012 Index IEEE Transactions on Geoscience and Remote Sensing Vol. 50

2012 IEEE Transactions on Geoscience and Remote Sensing  
Synthesis Method for High Spatial Resolution Remote Sensing Image Segmentation.  ...  ., +, TGRS Jan. 2012 221-231 A Scale-Synthesis Method for High Spatial Resolution Remote Sensing Image Segmentation.  ...  Radar resolution A Novel Method for Imaging of Group Targets Moving in a Formation. Bai, X., +, TGRS Jan. 2012  ... 
doi:10.1109/tgrs.2012.2229656 fatcat:hjrotpfsqzhxlnnme27ftv33cu

Geospatial Artificial Intelligence (GeoAI) in the Integrated Hydrological and Fluvial Systems Modeling: Review of Current Applications and Trends

Carlos Gonzales-Inca, Mikel Calle, Danny Croghan, Ali Torabi Haghighi, Hannu Marttila, Jari Silander, Petteri Alho
2022 Water  
Overall, selecting a particular GeoAI method depends on the application's objective, data availability, and user expertise.  ...  This paper reviews the current GeoAI and machine learning applications in hydrological and hydraulic modeling, hydrological optimization problems, water quality modeling, and fluvial geomorphic and morphodynamic  ...  Water 2022, 14, 2211 Acknowledgments: We kindly thank the Freshwater Competence Centre (Available online: www. (accessed on 21 June 2022)).  ... 
doi:10.3390/w14142211 fatcat:tjiod5qz45f67kbmkm3f6kuv7i
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