Relevant bibliographies by topics / Section of geometric images

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Section of geometric images'

Author: Grafiati
Published: 28 May 2022
Last updated: 30 July 2025

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Journal articles on the topic "Section of geometric images"

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Udekwe, Charles Nnamdi, and Akinlolu Adediran Ponnle. "Adaptation of Cardinal Points Symmetry Landmarks Distribution Model to in-vivo B-Mode Ultrasound Images of Transverse Cross-section of Carotid Arteries." European Journal of Engineering and Technology Research 6, no. 7 (2021): 107–13. http://dx.doi.org/10.24018/ejeng.2021.6.7.2633.

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The geometry of the imaged transverse cross-section of carotid arteries in in-vivo B-mode ultrasound images are most times irregular, unsymmetrical, full of speckles and usually non-uniform. We had earlier developed a technique of cardinal point symmetry landmark distribution model (CPS-LDM) to completely characterize the Region of Interest (ROI) of the geometric shape of thick-walled simulated B-mode ultrasound images of carotid artery imaged in the transverse plane, but this was based on the symmetric property of the image. In this paper, this developed technique was applied to completely ch
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Udekwe, Charles Nnamdi, and Akinlolu Adediran Ponnle. "Adaptation of Cardinal Points Symmetry Landmarks Distribution Model to in-vivo B-Mode Ultrasound Images of Transverse Cross-section of Carotid Arteries." European Journal of Engineering and Technology Research 6, no. 7 (2021): 107–13. http://dx.doi.org/10.24018/ej-eng.2021.6.7.2633.

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The geometry of the imaged transverse cross-section of carotid arteries in in-vivo B-mode ultrasound images are most times irregular, unsymmetrical, full of speckles and usually non-uniform. We had earlier developed a technique of cardinal point symmetry landmark distribution model (CPS-LDM) to completely characterize the Region of Interest (ROI) of the geometric shape of thick-walled simulated B-mode ultrasound images of carotid artery imaged in the transverse plane, but this was based on the symmetric property of the image. In this paper, this developed technique was applied to completely ch
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Chen, Z., B. Wu, and W. C. Liu. "DEEP LEARNING FOR 3D RECONSTRUCTION OF THE MARTIAN SURFACE USING MONOCULAR IMAGES: A FIRST GLANCE." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIII-B3-2020 (August 21, 2020): 1111–16. http://dx.doi.org/10.5194/isprs-archives-xliii-b3-2020-1111-2020.

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Abstract. The paper presents our efforts on CNN-based 3D reconstruction of the Martian surface using monocular images. The Viking colorized global mosaic and Mar Express HRSC blended DEM are used as training data. An encoder-decoder network system is employed in the framework. The encoder section extracts features from the images, which includes convolution layers and reduction layers. The decoder section consists of deconvolution layers and is to integrate features and convert the images to desired DEMs. In addition, skip connection between encoder and decoder section is applied, which offers
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Baláž, Vladimír, Marek Vagaš, Ján Semjon, and Rudolf Rusnák. "Camera Systems of Industrial Robots." Applied Mechanics and Materials 844 (July 2016): 68–74. http://dx.doi.org/10.4028/www.scientific.net/amm.844.68.

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The article deals with problems of image capture. There are presented methods of image processing through 2D and 3D camera systems. Section dedicated to image processing refers to the possibility of using different filters images, geometric and brightness transformations.
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HÉBERT, PATRICK, DENIS LAURENDEAU, and ROBERT BERGEVIN. "FROM 3-D SCATTERED DATA TO GEOMETRIC SIGNAL DESCRIPTION: INVARIANT STABLE RECOVERY OF STRAIGHT LINE SEGMENTS." International Journal of Pattern Recognition and Artificial Intelligence 08, no. 06 (1994): 1319–42. http://dx.doi.org/10.1142/s0218001494000668.

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Many tasks, such as pose determination, object recognition and model building rely on a geometrical description of the visible surfaces derived from scene measurements. Even though much effort has been invested in surface description, robust extraction of surface parameters from scattered and noisy 3-D measurements is still a delicate task. For a given visible surface section, the extracted parameters should not depend on the sensor position in the scene nor on a particular measurement set on this surface. In this work, we show that a viewpoint invariant and stable local surface description ca
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Martínez-Casasnovas, José A., Leire Sandonís-Pozo, Alexandre Escolà, Jaume Arnó, and Jordi Llorens. "Delineation of Management Zones in Hedgerow Almond Orchards Based on Vegetation Indices from UAV Images Validated by LiDAR-Derived Canopy Parameters." Agronomy 12, no. 1 (2021): 102. http://dx.doi.org/10.3390/agronomy12010102.

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One of the challenges in orchard management, in particular of hedgerow tree plantations, is the delineation of management zones on the bases of high-precision data. Along this line, the present study analyses the applicability of vegetation indices derived from UAV images to estimate the key structural and geometric canopy parameters of an almond orchard. In addition, the classes created on the basis of the vegetation indices were assessed to delineate potential management zones. The structural and geometric orchard parameters (width, height, cross-sectional area and porosity) were characteriz
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Udekwe, Charles Nnamdi, and Akinlolu Adeniran Ponnle. "Application of Cardinal Points Symmetry Landmarks Distribution Model to B-Mode Ultrasound Images of Transverse Cross-section of Thin-walled Phantom Carotid Arteries." European Journal of Engineering Research and Science 4, no. 12 (2019): 96–101. http://dx.doi.org/10.24018/ejers.2019.4.12.1656.

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We had earlier developed a technique based on cardinal point symmetry landmark distribution model (CPS-LDM) to completely characterize the Region of Interest (ROI) of the geometric shape of thick-walled simulated B-mode ultrasound images of carotid artery imaged in the transverse plane. In this paper, this developed technique was applied to completely characterize the region of interest of the geometric shape of B-mode ultrasound images of thin-walled phantom carotid artery imaged in the transverse plane. The developed model employs a combination of fixed landmarks (FLs) and movable landmarks
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Udekwe, Charles Nnamdi, and Akinlolu Adeniran Ponnle. "Application of Cardinal Points Symmetry Landmarks Distribution Model to B-Mode Ultrasound Images of Transverse Cross-section of Thin-walled Phantom Carotid Arteries." European Journal of Engineering and Technology Research 4, no. 12 (2019): 96–101. http://dx.doi.org/10.24018/ejeng.2019.4.12.1656.

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We had earlier developed a technique based on cardinal point symmetry landmark distribution model (CPS-LDM) to completely characterize the Region of Interest (ROI) of the geometric shape of thick-walled simulated B-mode ultrasound images of carotid artery imaged in the transverse plane. In this paper, this developed technique was applied to completely characterize the region of interest of the geometric shape of B-mode ultrasound images of thin-walled phantom carotid artery imaged in the transverse plane. The developed model employs a combination of fixed landmarks (FLs) and movable landmarks
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Weiss, S., M. C. Zimmerman, R. D. Harten, F. G. Alberta, and A. Meunier. "The Acoustic and Structural Properties of the Human Femur." Journal of Biomechanical Engineering 120, no. 1 (1998): 71–76. http://dx.doi.org/10.1115/1.2834309.

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This study evaluates the variations in the acoustic properties of the human femur at ten evenly spaced locations along its length, as well as differences that exist within given transverse sections. Six pairs of human femora, three male and three female, were sectioned, ground, and polished, and scanned with a microprocessor-driven scanning acoustic microscope. Images with a resolution of approximately 140 μm were used to calculate the average acoustic impedances for each transverse cross section and each quadrant within a cross section. The mean acoustic impedance for all the cross sections w
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Jiao, Niangang, Feng Wang, Bo Chen, Jingxing Zhu, and Hongjian You. "Pre-Processing of Inner CCD Image Stitching of the SDGSAT-1 Satellite." Applied Sciences 12, no. 19 (2022): 9693. http://dx.doi.org/10.3390/app12199693.

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Spliced optical satellite cameras suffering from low stitching accuracy are influenced by various factors which can greatly restrict their applications. Most previous studies have focused on the geometric precision of stitched images, which is influenced by the stitching consistency and the relationships between different inner CCD (Charge-Coupled Device) images. Therefore, the stitching accuracy is of great significance in multiple CCD image production. Traditionally, the line-time normalization method has been applied for inner CCD image stitching based on designed line-times with the assump
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Dissertations / Theses on the topic "Section of geometric images"

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Лазаренко, А. Д. "Застосування методу послідовних наближень для визначення перетину тіл обертання з просторовими кривими". Thesis, Сумський державний університет, 2018. http://essuir.sumdu.edu.ua/handle/123456789/67058.

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У роботі запропоновано принципово новий підхід у розв’язанні позиційних задач нарисної геометрії [3], який заснований на методі послідовних наближень і відрізняється простотою та можливістю простої чисельної реалізації у інженерному програмному забезпеченні. Точність цього методу контролюється на кожному ітераційному кроці геометричних побудов.
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Lu, Haw-minn. "Geometric theory of images /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1998. http://wwwlib.umi.com/cr/ucsd/fullcit?p9835404.

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Wilczkowiak, Marta. "3D modelling from images using geometric constraints." Grenoble INPG, 2004. http://www.theses.fr/2004INPG0034.

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Hold-Geoffroy, Yannick. "Learning geometric and lighting priors from natural images." Doctoral thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/31264.

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Comprendre les images est d’une importance cruciale pour une pléthore de tâches, de la composition numérique au ré-éclairage d’une image, en passant par la reconstruction 3D d’objets. Ces tâches permettent aux artistes visuels de réaliser des chef-d’oeuvres ou d’aider des opérateurs à prendre des décisions de façon sécuritaire en fonction de stimulis visuels. Pour beaucoup de ces tâches, les modèles physiques et géométriques que la communauté scientifique a développés donnent lieu à des problèmes mal posés possédant plusieurs solutions, dont généralement une seule est raisonnable. Pour résoudr
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Kodipaka, Santhosh. "A novel conic section classifier with tractable geometric learning algorithms." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0024624.

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Feng, Sitao. "Image Analysis on Wood Fiber Cross-Section Images." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-156428.

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Lignification of wood fibers has a significant impact on wood properties. To measure the distribution of lignin in compression wood fiber cross-section images, a crisp segmentation method had been developed. It segments the lumen, the normally lignified cell wall and the highly lignified cell wall of each fiber. In order to refine this given segmentation the following two fuzzy segmentation methods were evaluated in this thesis: Iterative Relative Multi Objects Fuzzy Connectedness and Weighted Distance Transform on Curved Space. The crisp segmentation is used for the multi-seed selection. The
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Yong, Matthew K. M. "Radar cross section reduction : geometric control of discontinuities using serrated edges /." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1998. http://handle.dtic.mil/100.2/ADA343828.

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Thesis (M.S. in Electrical Engineering) Naval Postgraduate School, March 1998.<br>Thesis advisor(s): David C. Jenn. "March 1998."-Cover. Includes bibliographical references (p. 47). Also available online.
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Yang, Li. "Behaviour of masonry columns of geometric section subjected to eccentric axial load." Thesis, University of Manchester, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.705160.

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Allouch, Yair. "Multi scale geometric segmentation on 2D and 3D Digital Images /." [Beer Sheva] : Ben Gurion University of the Negev, 2007. http://aranne5.lib.ad.bgu.ac.il/others/AlloucheYair.pdf.

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Mumtaz, Rafia. "Attitude Determination by Exploiting Geometric Distortions in Stero Earth Images." Thesis, University of Surrey, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.518706.

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Books on the topic "Section of geometric images"

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Beskin, N. M. Images of geometric solids. Mir Publishers, 1985.

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Beskin, N. M. Images of geometric solids. MIR Pub., 1985.

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Shevlin, F. Geometric transformation of images. Trinity College, Department of Computer Science, 1992.

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Caselles, Vicent, and Pascal Monasse. Geometric Description of Images as Topographic Maps. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-04611-7.

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Pascal, Monasse, and SpringerLink (Online service), eds. Geometric description of images as topographic maps. Springer, 2010.

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Yong, Matthew K. M. Radar cross section reduction: Geometric control of discontinuities using serrated edges. Naval Postgraduate School, 1998.

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Yang, L. Behaviour of masonry columns of geometric section subjected to eccentric axial load. UMIST, 1995.

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Yi, Ma, ed. An invitation to 3-D vision: From images to geometric models. Springer, 2004.

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Ma, Yi. An invitation to 3-D vision: From images to geometric models. Springer, 2011.

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Wong, L. K. Further development of a computer program for the analysis of masonry columns of geometric section. UMIST, 1993.

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Book chapters on the topic "Section of geometric images"

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Krampe, Michael, and Bernd Kuhlenkötter. "Experimental Investigation of the Influence of Different Nozzle Exit Geometries on the Depositing of Strands in Fused Layer Modeling." In Annals of Scientific Society for Assembly, Handling and Industrial Robotics 2023. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-74010-7_2.

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Abstract The aim of this paper is to investigate the influence of different exit geometries of the nozzle in the FLM process. In order to determine the effects of nozzle exit shapes, an experimental investigation was carried out. Individual strands were deposited with different nozzle exit shapes, whose shape was subsequently determined by laser scanning and microscopic images of the strand cross-sections. In addition, the orientation in relation to the deposition direction and five different layer heights were investigated. Circular, triangular, square, and hexagonal nozzle exit shapes with c
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King, Bruce. "Geometric Data from Images." In Geographical Data Acquisition. Springer Vienna, 2001. http://dx.doi.org/10.1007/978-3-7091-6183-8_11.

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Cuevas, Erik, and Alma Nayeli Rodríguez. "Geometric Operations in Images." In Image Processing and Machine Learning, Volume 2. Chapman and Hall/CRC, 2024. http://dx.doi.org/10.1201/9781032662466-3.

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Runge, Val M., and Johannes T. Heverhagen. "Geometric Distortion." In The Physics of Clinical MR Taught Through Images. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-85413-3_111.

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Fournier, Alain, and Brian A. Barsky. "Geometric Continuity with Interpolating Bézier Curves." In Computer-Generated Images. Springer Japan, 1985. http://dx.doi.org/10.1007/978-4-431-68033-8_14.

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Ozell, B., and R. Camarero. "A Geometric Modeller for Turbomachinery Applications." In Computer-Generated Images. Springer Japan, 1985. http://dx.doi.org/10.1007/978-4-431-68033-8_29.

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Kimmel, Ron. "Geometric Framework in Image Processing." In Numerical Geometry of Images. Springer New York, 2004. http://dx.doi.org/10.1007/978-0-387-21637-9_10.

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Ngai, W. B., and Y. K. Chan. "Low Cost Geometric Modelling System for CAM." In Computer-Generated Images. Springer Japan, 1985. http://dx.doi.org/10.1007/978-4-431-68033-8_30.

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Kiciak, Przemysław. "Images of surface shape." In Geometric Continuity of Curves and Surfaces. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-031-02590-7_6.

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Schiefermayr, Klaus. "Geometric Properties of Inverse Polynomial Images." In Springer Proceedings in Mathematics. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0772-0_17.

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Conference papers on the topic "Section of geometric images"

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Iliasova, N. Y., A. V. Ustinov, N. D. Bystrov, and L. N. Medinskaya. "Evaluating the geometrical parameters of atomization-jet cross section images in diagnostics of diesel injectors." In Optical Information Science and Technology, edited by Andrei L. Mikaelian. SPIE, 1998. http://dx.doi.org/10.1117/12.302500.

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Smith, Austin, and Hamzeh Bardaweel. "Generation and Investigation of Embedded Micro-Channels Network Using Three Dimensional Printing Technology." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70161.

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The work presented here is motivated by the recent growing interest in using additive manufacturing to fabricate micro-channels networks. Distorted shapes and rough geometries influence hydrodynamic characteristics of micro-channels by increasing their flow resistance and pressure drop or altering wall shear stresses inside them. Since geometric conformity and shape fidelity of micro-channels networks are greatly influenced by manufacturing process, this work is focused on dimensional characterization of micro-channels fabricated using additive manufacturing. In this work, circular and rectang
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Fornero, Sofia Alves, Candida Menezes de Jesus, Pamella Paiva Fernandes, and Willian Andrighetto Trevizan. "Pseudo Borehole Images From Outcrop Photographs: Improving Geological Interpretations." In 2024 SPWLA 65th Annual Symposium. Society of Petrophysicists and Well Log Analysts, 2024. https://doi.org/10.30632/spwla-2024-0099.

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The interpretation of geological features on borehole image logs (BHI) is not trivial, and it is susceptible to misinterpretation. Since the BHI are projected on a two-dimensional (2D) cylindrical plane view, any planar feature will be seen as sinusoids, which is very unusual to those who work on the 2D views, such as core slabs, road cuts, or even in a continuous view of a photograph. To interpret BHI with higher confidence, geologists and petrophysicists always search for field analogs, cores, or at least sidewall cores to calibrate their eyes for rock textures and structures that may be pre
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Gabara, Grzegorz, and Piotr Sawicki. "Study on 3D Point Clouds Accuracy of Elongated Object Reconstruction in Close Range – Comparison of Different Software." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.188.

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The image based point clouds generated from multiple different oriented photos enable 3D object reconstruction in a variety spectrum of close range applications. The paper presents the results of testing the accuracy the image based point clouds generated in disadvantageous conditions of digital photogrammetric data processing. The subject of the study was a long shaped object, i.e. the horizontal and rectilinear section of the railway track. DSLR Nikon D5100 camera, 16MP, equipped with the zoom lens (f = 18 ÷ 55mm), was used to acquire the block of terrestrial convergent and very oblique phot
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Boston, D. Matthew, Jose R. Rivas-Padilla, and Andres F. Arrieta. "Design and Manufacturing of a Multi-Stable Selectively Stiff Morphing Section Demonstrator." In ASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/smasis2019-5706.

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Abstract Morphing wings offer potential efficiency and performance benefits for aircraft fulfilling multiple mission requirements. However, the design of shape adaptable wings is limited by the inherent design trade-offs of weight, aerodynamic control authority, and load-carrying capacity. A potential solution to this trilemma is proposed by exploiting the stiffness adaptability of thin, curved structures which geometric instability results in two statically stable states. We design and manufacture a morphing wing section demonstrator composed of two compliant 3D printed ribs monolithically em
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Bloemenkamp, Richard, Elia Haddad, Nadege Bize-Forest, Laetitia Comparon, and Peter Schlicht. "FIELD-TESTING A THROUGH-THE-BIT HIGH-DEFINITION ELECTRICAL BOREHOLE IMAGER FOR OIL-BASED MUD." In 2021 SPWLA 62nd Annual Logging Symposium Online. Society of Petrophysicists and Well Log Analysts, 2021. http://dx.doi.org/10.30632/spwla-2021-0009.

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A new, through-the-bit, ultra-slim wireline borehole-imaging tool for use in oil-based mud provides photorealistic images. The imager is designed to be conveyed through drill-pipe. At the desired well section, it exits the drill pipe through a portal drill bit and starts the logging. Field test measurements in several horizontal, unconventional wells in North America show images of fine detail with a large amount of geological information and high value for well development. A relatively new solution for conveying tools to the deepest point of a high angle or horizontal wells uses a drill bit
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Rajan, Navaneetha Krishnan, Zeying Song, Kenneth R. Hoffmann, Marek Belohlavek, Eileen M. McMahon, and Iman Borazjani. "3D Reconstruction of the Left Ventricle From Four Echocardiographic Projections." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-34463.

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The left ventricle (LV) of a human heart receives oxygenated blood from the lungs and pumps it throughout the body via the aortic valve. Characterizing the LV geometry, its motion, and the ventricular flow is critical in assessing the heart’s health. An automated method has been developed in this work to generate a three-dimensional (3D) model of the LV from multiple-axis echocardiography (echo). Image data from three long-axis sections and a basal section is processed to compute spatial nodes on the LV surface. The generated surfaces are output in a standard format such that it can be importe
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Liang, Xing, Honglin Shu, Jiehui Zhang, et al. "Identifying and Characterizing Mass-Transport Complexes in the Longmaxi Shale in Sichuan Basin, China." In SPE Reservoir Characterisation and Simulation Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/212653-ms.

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Abstract The Lower Silurian Longmaxi Shale Formation of Sichuan Basin is the largest shale gas reservoir in China. It was formed mainly in a deepwater shelf depositional environment with a relatively stable tectonic background. More and more cores and borehole images data from the Longmaxi Shale revealed that the sedimentary features show considerable changes in mineralogy or texture in different regions. Mass-transport complexes (MTC) were identified for the first time in the Longmaxi Shale based on the integration of logs, borehole images, and seismic data. The MTC have led to a clearly abno
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O'Leary, M. A., D. A. Boas, B. Chance, and A. G. Yodh. "Images of Inhomogeneous Turbid Media Using Diffuse Photon Density Waves." In Advances in Optical Imaging and Photon Migration. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/aoipm.1994.apmpdwi.106.

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In this paper we present images derived from measurements of diffuse photon density waves in turbid media. After a brief introduction and description of the experimental set-up, this document is divided into two sections. In the first, we present an analytic solution for the scattering of diffuse photon density waves by spherical and cylindrical inhomogeneities within turbid media and discuss the application of this solution to systems containing multiple objects and multiple sources. This exact solution is a useful tool for simulating the distortion of a diffuse photon density wave due to sim
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Raffalt, Daniel, Berend Denkena, Benjamin Bergmann, and Roman Lang. "Manufacturing Of Graded Grinding Layers." In World Powder Metallurgy 2022 Congress & Exhibition. EPMA, 2022. http://dx.doi.org/10.59499/wp225363762.

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Grinding of end mill cutters leads to an unevenly radial wear of the grinding wheel due to varying geometric engagement conditions along the grinding wheel width. This results in a decreasing precision of the resulting tool geometry. Previous studies showed that simulation-based load-adjusted grinding layers reduce the uneven wear. A grain concentration gradient across the grinding layer width enables load-adjustment on the operational demands. For an effective reduction of the wear differences, an accurate and repeatable manufacturing method for smooth transitions between the concentration zo
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Reports on the topic "Section of geometric images"

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Toutin, Th. Geometric Correction of Remotely Sensed Images. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2003. http://dx.doi.org/10.4095/220030.

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Toutin, Th, R. Chénier, and Y. Carbonneau. 3D Geometric Modelling of IKONOS Geo Images. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2001. http://dx.doi.org/10.4095/219816.

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Toutin, Th. Geometric Processing of IKONOS Geo Images with DEM. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2001. http://dx.doi.org/10.4095/219815.

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Gantzer, Clark J., Shmuel Assouline, and Stephen H. Anderson. Synchrotron CMT-measured soil physical properties influenced by soil compaction. United States Department of Agriculture, 2006. http://dx.doi.org/10.32747/2006.7587242.bard.

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Methods to quantify soil conditions of pore connectivity, tortuosity, and pore size as altered by compaction were done. Air-dry soil cores were scanned at the GeoSoilEnviroCARS sector at the Advanced Photon Source for x-ray computed microtomography of the Argonne facility. Data was collected on the APS bending magnet Sector 13. Soil sample cores 5- by 5-mm were studied. Skeletonization algorithms in the 3DMA-Rock software of Lindquist et al. were used to extract pore structure. We have numerically investigated the spatial distribution for 6 geometrical characteristics of the pore structure of
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Letcher, Theodore, Julie Parno, Zoe Courville, Lauren Farnsworth, and Jason Olivier. A generalized photon-tracking approach to simulate spectral snow albedo and transmittance using X-ray microtomography and geometric optics. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47122.

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A majority of snow radiative transfer models (RTMs) treat snow as a collection of idealized grains rather than an organized ice–air matrix. Here we present a generalized multi-layer photon-tracking RTM that simulates light reflectance and transmittance of snow based on X-ray micro- tomography images, treating snow as a coherent 3D structure rather than a collection of grains. The model uses a blended approach to expand ray-tracing techniques applied to sub-1 cm3 snow samples to snowpacks of arbitrary depths. While this framework has many potential applications, this study’s effort is focused o
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Wendelberger, James G. Localized Similar Image Texture in Images of Sample Laser Confocal Microscope for Area: FY15 DE07 SW C1 Zone 1 & 2 Section b. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1496724.

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Yan, Yujie, and Jerome F. Hajjar. Automated Damage Assessment and Structural Modeling of Bridges with Visual Sensing Technology. Northeastern University, 2021. http://dx.doi.org/10.17760/d20410114.

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Recent advances in visual sensing technology have gained much attention in the field of bridge inspection and management. Coupled with advanced robotic systems, state-of-the-art visual sensors can be used to obtain accurate documentation of bridges without the need for any special equipment or traffic closure. The captured visual sensor data can be post-processed to gather meaningful information for the bridge structures and hence to support bridge inspection and management. However, state-of-the-practice data postprocessing approaches require substantial manual operations, which can be time-c
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Vorjohann, Felix, and Reinhard Schiffers. Analysis of spiral mandrel dies with novel channel geometries to draw conclusions on the purging time of the melt using CFD. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.gs.ex.1.

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Spiral mandrel dies are deeply integrated into the extrusion process and are the predominant die type for manufacturing products with a ring-shaped cross-section, e.g. blown film. The geometry of the axial spiral mandrel die is characterized by a spiral mandrel with one or more feed holes that merge into the spiral channels. The spiral channels themselves are embedded in the mandrel and have a characteristic u-shape in cross-section, which is dictated by the milling head used during manufacturing. In the past, numerous geometric parameters of the conventional axial spiral mandrel distributor h
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Tao, Yang, Amos Mizrach, Victor Alchanatis, Nachshon Shamir, and Tom Porter. Automated imaging broiler chicksexing for gender-specific and efficient production. United States Department of Agriculture, 2014. http://dx.doi.org/10.32747/2014.7594391.bard.

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Extending the previous two years of research results (Mizarch, et al, 2012, Tao, 2011, 2012), the third year’s efforts in both Maryland and Israel were directed towards the engineering of the system. The activities included the robust chick handling and its conveyor system development, optical system improvement, online dynamic motion imaging of chicks, multi-image sequence optimal feather extraction and detection, and pattern recognition. Mechanical System Engineering The third model of the mechanical chick handling system with high-speed imaging system was built as shown in Fig. 1. This syst
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Domínguez, Roberto. Perceptions of the European Union in Latin America. Fundación Carolina, 2023. http://dx.doi.org/10.33960/issn-e.1885-9119.dt76en.

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This working paper examines the puzzle of the gaps between the images that the EU projects, voluntarily and involuntarily, and the perceptions of the EU in Latin America. After reviewing some of the debates related to the role of perceptions in public policy and EU Public Diplomacy (EUPD), the paper analyzes some critical developments in global perceptions of the EU based on the study Update of the 2015 Analysis of the Perception of the EU and EU Policies Abroad (2021 Update Study), which assessed the attitudes of the EU in 13 countries. The third section examines some studies on the attitudes
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