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Optimized Signal Separation for 3D-Polarized Light Imaging [chapter]

Jurgen Dammers, Lukas Breuer, Giuseppe Tabb, Markus Axer
2013 Functional Brain Mapping and the Endeavor to Understand the Working Brain  
Wree, Institute for Anatomy, University of Rostock, for providing us with the postmortem human brain.  ...  The idea behind this is, that the weighted test statistic wrGOF accounts for missing gray and white matter components and improvements in SNR, independently to the metric used for identification of components  ...  the white to gray matter boundary ( Figure 6a ).  ... 
doi:10.5772/55246 fatcat:tc3n25hr7vg7hnroear2nc5uiu

Serial optical coherence scanner for large-scale brain imaging at microscopic resolution

Hui Wang, Junfeng Zhu, Taner Akkin
2014 NeuroImage  
Nerve fiber tracts are globally described in 3D by retardance, and delicately delineated by cross-polarization at the resolution of 15×15×5.5μm(3).  ...  In-plane orientations of the tracts are quantified by optic axis orientation.  ...  Acknowledgments This work was supported by the Graduate School Doctoral Dissertation Fellowship at the University of Minnesota (to HW), and a research grant from National Institute of Biomedical Imaging  ... 
doi:10.1016/j.neuroimage.2013.09.063 pmid:24099843 pmcid:PMC3928112 fatcat:m5awltbbtvdw5m33ekxik7fieu

Foreign object recognition technology for port transportation channel based on automatic image recognition

Liupeng Jiang, Guangyi Peng, Bo Xu, Yuhua Lu, Wei Wang
2018 EURASIP Journal on Image and Video Processing  
In the port transportation, the transportation vehicle is extremely easy to cause a bad condition in the transportation process due to the influence of foreign matter, and the current foreign matter detection  ...  Combined with the experimental analysis, the detection method of this study has certain effects, which can be used for foreign object identification in port transportation channels and can provide theoretical  ...  Availability of data and materials Please contact author for data requests. Authors' contributions All authors take part in the discussion of the work described in this paper.  ... 
doi:10.1186/s13640-018-0390-7 fatcat:oiurlwpd5rdmtjtvwp7rvgbzuu

Polarization sensitive optical coherence microscopy for brain imaging

Hui Wang, Taner Akkin, Caroline Magnain, Ruopeng Wang, Jay Dubb, William J Kostis, Mohammad A Yaseen, Avilash Cramer, Sava Sakadžić, David Boas
2016 Optics Letters  
Polarizationsensitive OCT provides sensitivity to additional contrast mechanisms, specifically the birefringence of myelination, and therefore is advantageous for investigating white matter fiber tracts  ...  In this study, we developed a polarization-sensitive optical coherence microscope (PS-OCM) with 3.5 μm axial and 1.3 μm transverse resolution to investigate fiber organization and orientation at a finer  ...  NIH EB015896, NS055104, NS091230, EB021018, EB018464, AG042026 and NSF 1510674.  ... 
doi:10.1364/ol.41.002213 pmid:27176965 pmcid:PMC5357322 fatcat:j6t6bweqznhrrlx26mqarj6jsu

Physico-chemical study concerning atmospheric particulate matter hazard

Ioan Petean, Aurora Mocanu, Gertrud-Alexandra Păltinean, Raluca Ţărcan, Dana Florina Muntean, Liana Mureşan, George Arghir, Maria Tomoaia-Cotişel
2017 Studia Universitatis Babe?-Bolyai Chemia  
In vivo experiments show that PM10 affects upper respiratory pathways such as nasal cavity and pharynges meanwhile PM2.5 was found in the expectoration matter from tracheal area.  ...  The particulate matter (PM) from the atmosphere is able to penetrate in the respiratory system presenting several health risks such as acute respiratory items, allergic issues, and chronic risks such as  ...  size range, μm 2 -100 1 -20 1 -25 10 -40 5 -50 Color in cross polarized light Green - gray White- Blue Pink Yellow- brown Reddish - brown Table 2 . 2 Pollen particles characteristics  ... 
doi:10.24193/subbchem.2017.4.03 fatcat:ksyc7iycnnfrdgkqn65umrwsze

Colors in atypical nevi: a computer description reproducing clinical assessment

Stefania Seidenari, Giovanni Pellacani, Costantino Grana
2005 Skin research and technology  
Results: Black, white and blue-gray were more frequently found in AN than in clearly BN, but less frequently than in MMs. Color area values significantly differed between the three groups.  ...  Background/purpose: Atypical nevi (AN) share some dermoscopic features with early melanoma (MM), and computer elaboration of digital images could represent a useful support to diagnosis to assess automatically  ...  The authors have no conflict of interest to disclose. The contents of the manuscript have not been previously published and have not been submitted elsewhere.  ... 
doi:10.1111/j.1600-0846.2005.00097.x pmid:15691257 fatcat:h5h7whbbsrg2lgllorvh3vee34

Occurrence State of Iron and Titanium in Kaolinite

Y. Liu, X. Yang, L. Xu
2016 Chemical Engineering Transactions  
The process mineralogy characteristics, such as chemical composition, mineral components and contents, the occurrence of the main mineral, the occurrence state of Ti and Fe, and the mineralogy factors  ...  affecting beneficiation indexes, were studied in detail with the methods of lens-below identification, scanning electron microscope, chemical elements analyses, and the chemical phase analyses.  ...  Kaolinite in micro-crystalline tube form Secondary Electron Image Fe-impregnated kaolinite (K) distributed along the edge of quartz (Q) Cross-polarized light Hematite (H) scatteredly distributed in kaolinite  ... 
doi:10.3303/cet1655057 doaj:ccfdae24c9f54bab80ab3f9b43ccedbf fatcat:edxb4y5ykrbzhcolh6wuiohou4

Micro and nano organization of atmospheric particulate matter in Grigorescu district of Cluj-Napoca

Ioan Petean, Babeş-Bolyai University, Faculty of Chemistry and Chemical Engineering, Gertrud Alexandra Paltinean, Aurora Mocanu, Dana Florina Muntean, Liana Muresan, George Arghir, Maria Tomoaia-Cotisel, Babeş-Bolyai University, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Faculty of Chemistry and Chemical Engineering, Environmental Protection Agency Cluj, Environmental Protection Agency Cluj (+2 others)
2018 Studia Universitatis Babe?-Bolyai Chemia  
The paper is focused on the micro and nano organization of atmospheric particulate matter in Grigorescu district of Cluj-Napoca in April and May 2017.  ...  PM10 contains mainly quartz and calcite followed by fractions of kaolinite and muscovite. PM2.5 contains clay in large amount and less quartz particles. Certain nanoparticles are found among PM2.5.  ...  Cross polarized light microscopy, Figure 1b , allows determining the characteristics of particles from each mineral class data in Table 1 .  ... 
doi:10.24193/subbchem.2018.3.04 fatcat:x6es53t63vekpadzbtjjkrwlhi

Performance Analysis on Automatic Number Plate Recognition System and Methods

2021 International Journal of Advanced Trends in Computer Science and Engineering  
Some condition may be affectthis due to low light or weather condition, size of thenumber plate also matter.  ...  This paper showsthe multiple techniques to implement this system and also show the results of Automatic Number Plate Recognition system  ...  For example: Large visual variations in complex environment, blur image due to unfocused image, light issues like a high reflecting light or dim light day time or nighttime and occlusion etc.  ... 
doi:10.30534/ijatcse/2021/1131022021 fatcat:oschme7x6fgw7niyefvec56rzi

Anatomical Distribution of Lipids in Human Brain Cortex by Imaging Mass Spectrometry

Antonio Veloso, Egoitz Astigarraga, Gabriel Barreda-Gómez, Iván Manuel, Isidro Ferrer, María Teresa Giralt, Begoña Ochoa, Olatz Fresnedo, Rafael Rodríguez-Puertas, José A. Fernández
2011 Journal of the American Society for Mass Spectrometry  
Further comparison between the spectra from lipid extracts devoid of proteins and those recorded directly from the tissue unambiguously show that the differences in lipid composition between gray and white  ...  matter observed in the mass images are not an artifact due to microenvironmental influences of each anatomical area on the signal intensity, but real variations in the lipid composition.  ...  Acknowledgments This study was supported by the Spanish Ministry of Education and Science (SAF2007-60211), the Basque Government (IT-325-07, IT-336-10, IT-440-10 and SAI07/ 46), Biscay County Council (  ... 
doi:10.1007/s13361-010-0024-5 pmid:21472592 fatcat:6hcl6rrmu5a7bhnc4xjbieuf2u

A parallel high-throughput approach to liquid crystal screening

Tobias Cull, Mark Goulding, Mark Bradley
2005 Review of Scientific Instruments  
plane of polarized light.  ...  A camera was used to monitor optical changes observed in arrays of LC samples upon heating, when illuminated with plane polarized light and viewed through a second polarizer aligned perpendicular to the  ...  large mixture libraries can be formulated and tested in a matter of hours.  ... 
doi:10.1063/1.1906125 fatcat:a72djuyfmne67ivlpcwcqgox2y

as -PSOCT: Volumetric microscopic imaging of human brain architecture and connectivity

Hui Wang, Caroline Magnain, Ruopeng Wang, Jay Dubb, Ani Varjabedian, Lee S. Tirrell, Allison Stevens, Jean C. Augustinack, Ender Konukoglu, Iman Aganj, Matthew P. Frosch, Jeremy D. Schmahmann (+2 others)
2018 NeuroImage  
In this study, we developed a fully automatic serial sectioning polarization sensitive optical coherence tomography (as-PSOCT) system to enable volumetric reconstruction of human brain samples with unprecedented  ...  Polarization sensitive optical coherence tomography (PSOCT) with serial sectioning has enabled the investigation of 3D structures in mouse and human brain tissue samples.  ...  In addition, BF has a financial interest in CorticoMetrics, a company whose medical pursuits focus on brain imaging and measurement technologies.  ... 
doi:10.1016/j.neuroimage.2017.10.012 pmid:29017866 pmcid:PMC5732037 fatcat:tr6imkudzfbbrdkn5pfn2ugdtu

Automatic and Accurate Extraction of Sea Ice in the Turbid Waters of the Yellow River Estuary Based on Image Spectral and Spatial Information

Huachang Qiu, Zhaoning Gong, Kuinan Mou, Jianfang Hu, Yinghai Ke, Demin Zhou
2022 Remote Sensing  
In this study, a set of sea ice automatic extraction method systems combining image spectral information and textural information is developed.  ...  The accuracy of sea ice extraction in the Yellow River Estuary is low due to the large dynamic changes in the suspended particulate matter (SPM).  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/rs14040927 fatcat:gxv6w3pevzaypitiwcadnewtfq

QUICK DETERMINATION OF CRYSTAL SIZE DISTRIBUTIONS OF ROCKS BY MEANS OF A COLOR SCANNER

Simone Tarquini, Pietro Armienti
2011 Image Analysis and Stereology  
The procedure implies the acquisition of four images with crossed polarizers and one parallel light image.  ...  Crystal boundaries are extracted from fields in crossed polarizers, while markers for mineral recognition are obtained thresholding the parallel light image.  ...  In NP images, the simple mineralogical composition of the samples permits the identification of the three principal components: olivine, pyroxenes and spinel.  ... 
doi:10.5566/ias.v22.p27-34 fatcat:wnnxeeatova2xn3unbz3b4g4lq

Automatic Segmentation of Human Cortical Layer-Complexes and Architectural Areas Using Ex vivo Diffusion MRI and Its Validation

Matteo Bastiani, Ana-Maria Oros-Peusquens, Arne Seehaus, Daniel Brenner, Klaus Möllenhoff, Avdo Celik, Jörg Felder, Hansjürgen Bratzke, Nadim J. Shah, Ralf Galuske, Rainer Goebel, Alard Roebroeck
2016 Frontiers in Neuroscience  
Several groups of adjacent layers could be distinguished in human primary motor and premotor cortex.  ...  We discuss the strengths and weaknesses of the automatic clustering approach and its appeal for MR-based cortical histology.  ...  The outer white/gray matter and the pial boundaries themselves were avoided to avoid partial volume effects with white matter tissue and embedding fluid.  ... 
doi:10.3389/fnins.2016.00487 pmid:27891069 pmcid:PMC5102896 fatcat:isrov2tvbngb7b7fabguqjyz2e
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