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Multifeature Contrast Enhancement Algorithm for Digital Media Images Based on the Diffusion Equation

Jijun Wang, Yi Yuan, Guoxiang Li, Miaochao Chen
2022 Advances in Mathematical Physics  
These optimizations enable the nonlinear diffusion filter-based image enhancement algorithm to achieve high processing efficiency on the C674xDSP, with a processing speed of 25 posts per second for 640  ...  This paper studies the processing of digital media images using a diffusion equation to increase the contrast of the image by stretching or extending the distribution of luminance data of the image to  ...  Categorized as background: The mathematical model constructed by the image processing method based on the partial differential equation, which is usually improved based on the partial differential equation  ... 
doi:10.1155/2022/1982555 fatcat:qu2bsj6jobhupbpvedz45smw4a

Integration of Beer-Lambert and van 't Hoff Laws for Salinity Detection using Remote Sensing Spectroscopy

A. Dehni, N. Kheloufi
2019 Acta Physica Polonica. A  
This paper presents a technique based on optical detection of the salinity by integrating both Beer-Lambert and van 't Hoff laws regarding remote sensing spectroscopy.  ...  The infra-red short-wave properties are the most diffusing according to sigmoidal model adaptation.  ...  All Landsat 8 images has been downloaded from USGS website and database profile mentioned in this manuscript speclab.cr.usgs.gov/spectral.lib06/ds231/datatable.html.  ... 
doi:10.12693/aphyspola.136.367 fatcat:pgafkvrrqnbgfkhupvviqzrkp4

Mode Decomposition Evolution Equations

Yang Wang, Guo-Wei Wei, Siyang Yang
2011 Journal of Scientific Computing  
Partial differential equation (PDE) based methods have become some of the most powerful tools for exploring the fundamental problems in signal processing, image processing, computer vision, machine vision  ...  The above-mentioned limitation of most current PDE based image/signal processing methods is addressed in the proposed work, in which we introduce a family of mode decomposition evolution equations (MoDEEs  ...  The solution to this partial differential equation (PDE) at a later time is a modified smooth image.  ... 
doi:10.1007/s10915-011-9509-z pmid:22408289 pmcid:PMC3293488 fatcat:f4origxi7zh5zhx2rm2oh2aefm

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

2019 IEEE Transactions on Geoscience and Remote Sensing  
., Insect Biological Parameter Estimation Based on the Invariant Target Parameters of the Scattering Matrix; TGRS Aug. 2019 6212-6225 Hu, C., see Zhang, M., TGRS Sept. 2019 6666-6674 Hu, C., Zhang,  ...  and Hanssen, R.F., Incorporating Temporary Coherent Li, X., Yeo, T.S., Yang, Y., Chi, C., Zuo, F., Hu, X., and Pi, Y., Refo-cusing and Zoom-In Polar Format Algorithm for Curvilinear Spotlight SAR Imaging  ...  ., +, TGRS Jan. 2019 406-415 A Novel Two-Step Registration Method for Remote Sensing Images Based on Deep and Local Features.  ... 
doi:10.1109/tgrs.2020.2967201 fatcat:kpfxoidv5bgcfo36zfsnxe4aj4

Variational approaches to super-resolution with contrast enhancement and anisotropic diffusion

Hyunwoo Kim
2003 Journal of Electronic Imaging (JEI)  
We present super-resolution methods that enhance image contrast and perform anisotropic diffusion simultaneously.  ...  Since we solve the super-resolution problem by encouraging Mach-band profiles while incorporating anisotropic diffusion, our technique not only reconstructs a high-resolution image from several overlapping  ...  We give thanks to A. Zomet and anonymous reviewers for providing the video for the experiment and for giving helpful comments, respectively.  ... 
doi:10.1117/1.1556312 fatcat:75wqcykqkratvnlaoooxwjr43a

Variational Distance-Dependent Image Restoration

Ran Kaftory, Yoav Y. Schechner, Yehoshua Y. Zeevi
2007 2007 IEEE Conference on Computer Vision and Pattern Recognition  
There is a need to restore color images that suffer from distance-dependent degradation during acquisition. This occurs, for example, when imaging through scattering media.  ...  We present a variational method to overcome this problem. It uses a regularization operator which is distance dependent, in addition to being edge-preserving and colorchannel coupled.  ...  Yoav Schechner is a Landau Fellow -supported by the Taub Foundation, and an Alon Fellow.  ... 
doi:10.1109/cvpr.2007.383262 dblp:conf/cvpr/KaftorySZ07 fatcat:b4di3wo6xrb25agifngs6nafry

Active and Passive Electro-Optical Sensors for Health Assessment in Food Crops

Thomas Fahey, Hai Pham, Alessandro Gardi, Roberto Sabatini, Dario Stefanelli, Ian Goodwin, David William Lamb
2020 Sensors  
As in situ techniques are surpassed by multispectral imaging, refinement of hyperspectral imaging and the promising emergence of light detection and ranging (LIDAR), remote sensing will define the future  ...  The added value of LIDAR-based systems stems from their greater flexibility in capturing data, high rate of data delivery and suitability for a high level of automation while overcoming the shortcomings  ...  of remote sensing imaging techniques adapted [76] .  ... 
doi:10.3390/s21010171 pmid:33383831 pmcid:PMC7795220 fatcat:l24zt6a52fft5on23u2fiv4mke

Missing Information Reconstruction of Remote Sensing Data: A Technical Review

Huanfeng Shen, Xinghua Li, Qing Cheng, Chao Zeng, Gang Yang, Huifang Li, Liangpei Zhang
2015 IEEE Geoscience and Remote Sensing Magazine  
In the past decades, missing information reconstruction of remote sensing data has become an active research field, and a large number of algorithms have been developed.  ...  Because of sensor malfunction and poor atmospheric conditions, there is usually a great deal of missing information in optical remote sensing data, which reduces the usage rate and hinders the follow-up  ...  This effect can be formalized with partial differential equations (PDEs); therefore, the diffusion inpainting is performed using PDEs [24] .  ... 
doi:10.1109/mgrs.2015.2441912 fatcat:vrhsm6zggjeedhtivusqshphum

Water Column Correction for Coral Reef Studies by Remote Sensing

Maria Zoffoli, Robert Frouin, Milton Kampel
2014 Sensors  
Choosing the best method depends on the marine environment, available input data and desired outcome or scientific application.  ...  However, the water column represents an additional complexity when extracting information from submerged substrates by remote sensing that demands a correction of its effect.  ...  Milton Kampel was supported by a FUNCATE/PETROBRAS fellowship (TC-0050.0066309.11.9).  ... 
doi:10.3390/s140916881 pmid:25215941 pmcid:PMC4208206 fatcat:wfk6ueft6rh4xgh2mfv3wyfvwq

Partial differential equation transform-Variational formulation and Fourier analysis

Yang Wang, Guo-Wei Wei, Siyang Yang
2011 International Journal for Numerical Methods in Biomedical Engineering  
Nonlinear partial differential equation (PDE) models are established approaches for image/signal processing, data analysis, and surface construction.  ...  Moreover, the method is not data adaptive.  ...  feature detection, medical diagnosis, remote sensing, machine vision, and artificial intelligence [1] [2] [3] [4] .  ... 
doi:10.1002/cnm.1452 pmid:22207904 pmcid:PMC3246290 fatcat:44e6otrznbe2pb7bnnuzksakk4

2014 Index IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Vol. 7

2014 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
., Bronstert, A., and Foerster, S  ...  ., +, JSTARS July 2014 3105-3116 Partial differential equations Integrating Spatial Information in Unsupervised Unmixing of Hyperspectral Imagery Using Multiscale Representation.  ...  Buono, A., +, JSTARS July 2014 2811-2820 A New Band Selection Method for Hyperspectral Image Based on Data Quality.  ... 
doi:10.1109/jstars.2015.2397347 fatcat:ib3tjwsjsnd6ri6kkklq5ov37a

Semi-empirical Soil Organic Matter Retrieval Model with Spectral Reflectance

Jing Yuan, Chunhui Hu, Changxiang Yan, ZHIZHONG Li, Shengbo Chen, Shurong Wang, Xin Wang, Zhengyuan Xu, Xueping Ju
2019 IEEE Access  
Based on the Kubelka-Munk (KM) theory, the SOM retrieval model with the absorption coefficient k and scattering coefficient s related to SOM (r = k/s) is derived.  ...  In this paper, for the first time, a semi-empirical SOM content retrieval model is constructed, which has certain theoretical basis, strong applicability and higher accuracy than before.  ...  For remote sensing applications, one need to retrieve SOM content from reflectance data.  ... 
doi:10.1109/access.2019.2941258 fatcat:zdcnwugdwrgjza7e7ojkrqep4a

Image Restoration for Remote Sensing: Overview and Toolbox [article]

Benhood Rasti, Yi Chang, Emanuele Dalsasso, Loïc Denis, Pedram Ghamisi
2021 arXiv   pre-print
Image restoration, which is a vibrant field of research in the remote sensing community, is the task of recovering the true unknown image from the degraded observed image.  ...  The quality of data acquired by remotely sensed imaging sensors (both active and passive) is often degraded by a variety of noise types and artifacts.  ...  of remote sensing scenes and of the degradation process.  ... 
arXiv:2107.00557v2 fatcat:adn5fpdza5h4tbsycg7yw6rqzu

Local Scale Measure from the Topographic Map and Application to Remote Sensing Images

Bin Luo, Jean-François Aujol, Yann Gousseau
2009 Multiscale Modeling & simulation  
These experiments suggest that the proposed method enables a robust and spatially accurate computation of local scales, without the need of complex parameter tuning. 2  ...  In this paper, we propose a spatially accurate definition of scale for images.  ...  Recently, several scale measures based on non-linear partial differential equations have been proposed.  ... 
doi:10.1137/080730627 fatcat:xfkrtjei2nek5pqwc6pgprkqva

Log Transformed Coherency Matrix for Differentiating Scattering Behaviour of Oil Spill Emulsions Using SAR Images

Kinjal Prajapati, Ratheesh Ramakrishnan, Madhuri Bhavsar, Alka Mahajan, Zunnun Narmawala, Archana Bhavsar, Maria Simona Raboaca, Sudeep Tanwar
2022 Mathematics  
Oil spills on the ocean surface are a serious threat to the marine ecosystem.  ...  Automation of oil spill detection through full/dual polarimetric Synthetic Aperture Radar (SAR) images is considered a good aid for oil spill disaster management.  ...  The rotation invariant H/Aparameters (Entropy, Anisotropy (A) and Scattering angle (α) are calculated based on the eigenvalues as shown in Equations ( 4 )-( 6 ), respectively [20] .  ... 
doi:10.3390/math10101697 fatcat:kquwmjzstbbunlnt2vpv3d2giu
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