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3d morphometric analysis of image data  (KU Leuven)

 
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    KU Leuven 3d morphometric analysis of image data
    3d Morphometric Analysis Of Image Data, supplied by KU Leuven, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/morphometric+image+analysis/3d+image+acquisition+and+quantitative+post+processing+tools/pmc08765013-235-17-26
    Average 90 stars, based on 1 article reviews
    3d morphometric analysis of image data - by Bioz Stars, 2026-09
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    Article Title: Characterizing the pore structure of a porous building material: Impacts of image acquisition, image denoising and image segmentation choices
    Article Snippet: The porous nature of a building material significantly influences its functional properties, with the pore structure being particularly crucial.. Imaging techniques are widely used to characterize pore structures, typically involving image acquisition, image denoising, and image segmentation.. This paper analyses the distinct impacts of these procedures on the resulting pore structure characterization, by application on ceramic brick, a commonly applied building material.

    Article Title: High strength and fatigue performance achieved for L-PBF processed hybrid particle reinforced Al-Cu-Mg composite
    Article Snippet: This study highlights the successful manufacturing of a crack-free, dense, hybrid ex-situ/in-situ particle reinforced (Ti + B4C)/Al-Cu-Mg composite, fabricated by laser powder bed fusion and exhibiting exceptional mechanical performance.. In its as-built (AB) state, the composite displays a unique microstructure characterized by equiaxed grains with an average grain size of 1.0 ± 0.3 μm, notable interdendritic microsegregation of Cu, Mg, Mn, and Fe, randomly distributed ex-situ added Ti and B4C particles featuring a surface interaction layer with the metal matrix, and in-situ formed reinforcing particles, such as TiB2 and TiC.. After subjecting the material to hot isostatic pressing (HIP) and subsequent aging treatment, dissolution of interdendritically segregated elements occurs, and precipitation of Al2Cu, Al12Mg17, and Al-Fe-Cu-Mn phases is observed.

    Article Title: UV-Curing Assisted Direct Ink Writing of Dense, Crack-Free, and High-Performance Zirconia-Based Composites With Aligned Alumina Platelets.
    Article Snippet: The KU Leuven XCT Core facility is acknowledged for the 3D image acquisition and post-processing tools (https://xct.kuleuven.be/).

    Article Title: Fibre misalignments in the split-disk test represented by random fields
    Article Snippet: Fibre misalignment is a major type of manufacturing defect in fibre-reinforced composite materials which has an adverse effect on the mechanical performance of composites.. The present paper utilises stochastic models based on the random fields of fibre misalignment in the finite element analysis (FEA) of the split-disk test for filament wound composites.. Local fibre misalignment characteristics are determined experimentally using X-ray microcomputed tomography (μ-CT) and then used to generate spatially correlated anisotropic random fields further mapped to finite element mechanical properties.

    Article Title: Accuracy of photon-counting computed tomography for the measurement of bone quality in the knee.
    Article Snippet: Visualization and quantification of bone microarchitecture in the human knee allows gaining insight into normal bone structure, and into the structural changes occurring in the onset and progression of bone diseases such as osteoporosis and osteoarthritis.. However, current imaging modalities have limitations in capturing the intricacies of bone microarchitecture.. Photon counting computed tomography (PCCT) is a promising imaging modality that presents high-resolution three-dimensional visualization of bone with a large field of view.

    Article Title: Transverse cracking in glass fibre-reinforced composites monitored with synchrotron X-ray multi-projection imaging
    Article Snippet: The KU Leuven XCT Core facility is acknowledged for the 3D image acquisition and post-processing tools.

    Article Title: Improved Algorithms for Stochastic Pore Network Generation for Porous Materials
    Article Snippet: Pore network modeling is widely applied to investigate transport phenomena in porous media, as this approach allows for efficient and accurate pore-scale simulation.. However, the direct extraction of the pore network (PN) from three-dimensional pore structure images can often not be achieved, due to the conflict between the wide pore size range of many porous materials and the limited image size inherent to many imaging techniques.. This obstacle is typically overcome by stochastic PN generation, and this paper proposes and assesses improved stochastic algorithms to generate such statistically similar PNs.

    Article Title: Effectiveness of a 3D simulation tool to teach the designing of metal removable partial dentures: A mixed-method study.
    Article Snippet: © 2023 John Wiley & Sons A/S.. Published by John Wiley & Sons Ltd. 1School of Dentistry, Université de Lille, Lille, France 2INSERM U1008 – Controlled Drug Delivery Systems and Biomaterials, Université de Lille, Lille, France 3ITEC, IMEC Research Group, KU Leuven, Leuven, Belgium 4School of Dentistry, KU Leuven, Leuven, Belgium 5Centre for Instructional Psychology and Technology (CIP&T), KU Leuven, Leuven, Belgium 6Centre Interuniversitaire de Recherche en Education de Lille (ULR 4354), Villeneuved'Ascq, France



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    Third harmonic generation (THG) brain imaging in groups of Danionella dracula 3 to 90 dpf. A . Left: Side view of a male. Scale bar indicates 3mm. Right: Head-on view of male extending its hypertrophied lower jaw during mid-lunge at another male. B . Dorsal views of fish imaged from 90-3 dpf (left to right). Scale bar left indicates 500 μm for all images. Top insert at 90 dpf is zoom-in on fangs (indicated by arrows; dashed outline on left fang), which are first apparent in 90 dpf males along with hypertrophied lower jaw. C . Schematic of imaging apparatus (see Materials and Methods). Left: profile drawing of animal placement under objective. Right: dorsal view of adult placed in putty holder with perfusion mouthpiece. Fish imaged less than 60 dpf were imaged using an alternative setup than pictured (see Materials and Methods, Fish stabilization for imaging). D. 30, 21, and 14 dpf example fish depicting changes in swim bladder (SB) separation into anterior and posterior chambers. Scale bar indicates 500 μm for all images. E . Schematic of representative D. dracula brain; illustrations based on pictures of dissected whole brains. Brain regions of <t>morphometric</t> analysis indicated in lateral and dorsal views; green, OB (olfactory bulb); blue, telencephalon; orange, TL (torus longitudinalis); pink, TeO (optic tectum). Insert indicates horizontal slice in midbrain depicting TeO (pink), periventricular gray zone (PGZ) of TeO (purple, included in TeO measurement), depicted for indication of boundary between TeO and TS (yellow, torus semicircularis). F . Scatterplot of age in dpf of animals in this study and gross brain volume in μm 3 . Boxplots indicate median, upper and lower quartiles and 1.5× interquartile range for each Age. Gross brain volume calculation is described in and Materials and Methods. Different ages depicted by different colored dots as shown in legend: red, 5 dpf; yellow, 14 dpf; green, 21 dpf; teal, 30 dpf; blue, 60 dpf; purple, 90 dpf. As is described in Materials and Methods, we performed the best fitting quadratic regression (F 2,30= 120.8, R 2 = 0.8821, p<0.001) on log-transformed data to normalize the residuals. The green line displayed here represents the quadratic regression line based on the original (non-transformed) data, for best visual clarity and understanding.
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    Third harmonic generation (THG) brain imaging in groups of Danionella dracula 3 to 90 dpf. A . Left: Side view of a male. Scale bar indicates 3mm. Right: Head-on view of male extending its hypertrophied lower jaw during mid-lunge at another male. B . Dorsal views of fish imaged from 90-3 dpf (left to right). Scale bar left indicates 500 μm for all images. Top insert at 90 dpf is zoom-in on fangs (indicated by arrows; dashed outline on left fang), which are first apparent in 90 dpf males along with hypertrophied lower jaw. C . Schematic of imaging apparatus (see Materials and Methods). Left: profile drawing of animal placement under objective. Right: dorsal view of adult placed in putty holder with perfusion mouthpiece. Fish imaged less than 60 dpf were imaged using an alternative setup than pictured (see Materials and Methods, Fish stabilization for imaging). D. 30, 21, and 14 dpf example fish depicting changes in swim bladder (SB) separation into anterior and posterior chambers. Scale bar indicates 500 μm for all images. E . Schematic of representative D. dracula brain; illustrations based on pictures of dissected whole brains. Brain regions of <t>morphometric</t> analysis indicated in lateral and dorsal views; green, OB (olfactory bulb); blue, telencephalon; orange, TL (torus longitudinalis); pink, TeO (optic tectum). Insert indicates horizontal slice in midbrain depicting TeO (pink), periventricular gray zone (PGZ) of TeO (purple, included in TeO measurement), depicted for indication of boundary between TeO and TS (yellow, torus semicircularis). F . Scatterplot of age in dpf of animals in this study and gross brain volume in μm 3 . Boxplots indicate median, upper and lower quartiles and 1.5× interquartile range for each Age. Gross brain volume calculation is described in and Materials and Methods. Different ages depicted by different colored dots as shown in legend: red, 5 dpf; yellow, 14 dpf; green, 21 dpf; teal, 30 dpf; blue, 60 dpf; purple, 90 dpf. As is described in Materials and Methods, we performed the best fitting quadratic regression (F 2,30= 120.8, R 2 = 0.8821, p<0.001) on log-transformed data to normalize the residuals. The green line displayed here represents the quadratic regression line based on the original (non-transformed) data, for best visual clarity and understanding.
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    Third harmonic generation (THG) brain imaging in groups of Danionella dracula 3 to 90 dpf. A . Left: Side view of a male. Scale bar indicates 3mm. Right: Head-on view of male extending its hypertrophied lower jaw during mid-lunge at another male. B . Dorsal views of fish imaged from 90-3 dpf (left to right). Scale bar left indicates 500 μm for all images. Top insert at 90 dpf is zoom-in on fangs (indicated by arrows; dashed outline on left fang), which are first apparent in 90 dpf males along with hypertrophied lower jaw. C . Schematic of imaging apparatus (see Materials and Methods). Left: profile drawing of animal placement under objective. Right: dorsal view of adult placed in putty holder with perfusion mouthpiece. Fish imaged less than 60 dpf were imaged using an alternative setup than pictured (see Materials and Methods, Fish stabilization for imaging). D. 30, 21, and 14 dpf example fish depicting changes in swim bladder (SB) separation into anterior and posterior chambers. Scale bar indicates 500 μm for all images. E . Schematic of representative D. dracula brain; illustrations based on pictures of dissected whole brains. Brain regions of <t>morphometric</t> analysis indicated in lateral and dorsal views; green, OB (olfactory bulb); blue, telencephalon; orange, TL (torus longitudinalis); pink, TeO (optic tectum). Insert indicates horizontal slice in midbrain depicting TeO (pink), periventricular gray zone (PGZ) of TeO (purple, included in TeO measurement), depicted for indication of boundary between TeO and TS (yellow, torus semicircularis). F . Scatterplot of age in dpf of animals in this study and gross brain volume in μm 3 . Boxplots indicate median, upper and lower quartiles and 1.5× interquartile range for each Age. Gross brain volume calculation is described in and Materials and Methods. Different ages depicted by different colored dots as shown in legend: red, 5 dpf; yellow, 14 dpf; green, 21 dpf; teal, 30 dpf; blue, 60 dpf; purple, 90 dpf. As is described in Materials and Methods, we performed the best fitting quadratic regression (F 2,30= 120.8, R 2 = 0.8821, p<0.001) on log-transformed data to normalize the residuals. The green line displayed here represents the quadratic regression line based on the original (non-transformed) data, for best visual clarity and understanding.
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    Third harmonic generation (THG) brain imaging in groups of Danionella dracula 3 to 90 dpf. A . Left: Side view of a male. Scale bar indicates 3mm. Right: Head-on view of male extending its hypertrophied lower jaw during mid-lunge at another male. B . Dorsal views of fish imaged from 90-3 dpf (left to right). Scale bar left indicates 500 μm for all images. Top insert at 90 dpf is zoom-in on fangs (indicated by arrows; dashed outline on left fang), which are first apparent in 90 dpf males along with hypertrophied lower jaw. C . Schematic of imaging apparatus (see Materials and Methods). Left: profile drawing of animal placement under objective. Right: dorsal view of adult placed in putty holder with perfusion mouthpiece. Fish imaged less than 60 dpf were imaged using an alternative setup than pictured (see Materials and Methods, Fish stabilization for imaging). D. 30, 21, and 14 dpf example fish depicting changes in swim bladder (SB) separation into anterior and posterior chambers. Scale bar indicates 500 μm for all images. E . Schematic of representative D. dracula brain; illustrations based on pictures of dissected whole brains. Brain regions of <t>morphometric</t> analysis indicated in lateral and dorsal views; green, OB (olfactory bulb); blue, telencephalon; orange, TL (torus longitudinalis); pink, TeO (optic tectum). Insert indicates horizontal slice in midbrain depicting TeO (pink), periventricular gray zone (PGZ) of TeO (purple, included in TeO measurement), depicted for indication of boundary between TeO and TS (yellow, torus semicircularis). F . Scatterplot of age in dpf of animals in this study and gross brain volume in μm 3 . Boxplots indicate median, upper and lower quartiles and 1.5× interquartile range for each Age. Gross brain volume calculation is described in and Materials and Methods. Different ages depicted by different colored dots as shown in legend: red, 5 dpf; yellow, 14 dpf; green, 21 dpf; teal, 30 dpf; blue, 60 dpf; purple, 90 dpf. As is described in Materials and Methods, we performed the best fitting quadratic regression (F 2,30= 120.8, R 2 = 0.8821, p<0.001) on log-transformed data to normalize the residuals. The green line displayed here represents the quadratic regression line based on the original (non-transformed) data, for best visual clarity and understanding.
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    Third harmonic generation (THG) brain imaging in groups of Danionella dracula 3 to 90 dpf. A . Left: Side view of a male. Scale bar indicates 3mm. Right: Head-on view of male extending its hypertrophied lower jaw during mid-lunge at another male. B . Dorsal views of fish imaged from 90-3 dpf (left to right). Scale bar left indicates 500 μm for all images. Top insert at 90 dpf is zoom-in on fangs (indicated by arrows; dashed outline on left fang), which are first apparent in 90 dpf males along with hypertrophied lower jaw. C . Schematic of imaging apparatus (see Materials and Methods). Left: profile drawing of animal placement under objective. Right: dorsal view of adult placed in putty holder with perfusion mouthpiece. Fish imaged less than 60 dpf were imaged using an alternative setup than pictured (see Materials and Methods, Fish stabilization for imaging). D. 30, 21, and 14 dpf example fish depicting changes in swim bladder (SB) separation into anterior and posterior chambers. Scale bar indicates 500 μm for all images. E . Schematic of representative D. dracula brain; illustrations based on pictures of dissected whole brains. Brain regions of morphometric analysis indicated in lateral and dorsal views; green, OB (olfactory bulb); blue, telencephalon; orange, TL (torus longitudinalis); pink, TeO (optic tectum). Insert indicates horizontal slice in midbrain depicting TeO (pink), periventricular gray zone (PGZ) of TeO (purple, included in TeO measurement), depicted for indication of boundary between TeO and TS (yellow, torus semicircularis). F . Scatterplot of age in dpf of animals in this study and gross brain volume in μm 3 . Boxplots indicate median, upper and lower quartiles and 1.5× interquartile range for each Age. Gross brain volume calculation is described in and Materials and Methods. Different ages depicted by different colored dots as shown in legend: red, 5 dpf; yellow, 14 dpf; green, 21 dpf; teal, 30 dpf; blue, 60 dpf; purple, 90 dpf. As is described in Materials and Methods, we performed the best fitting quadratic regression (F 2,30= 120.8, R 2 = 0.8821, p<0.001) on log-transformed data to normalize the residuals. The green line displayed here represents the quadratic regression line based on the original (non-transformed) data, for best visual clarity and understanding.

    Journal: bioRxiv

    Article Title: Label-free multiphoton imaging reveals volumetric shifts across development in sensory-related brain regions of a miniature transparent vertebrate

    doi: 10.1101/2024.07.18.604134

    Figure Lengend Snippet: Third harmonic generation (THG) brain imaging in groups of Danionella dracula 3 to 90 dpf. A . Left: Side view of a male. Scale bar indicates 3mm. Right: Head-on view of male extending its hypertrophied lower jaw during mid-lunge at another male. B . Dorsal views of fish imaged from 90-3 dpf (left to right). Scale bar left indicates 500 μm for all images. Top insert at 90 dpf is zoom-in on fangs (indicated by arrows; dashed outline on left fang), which are first apparent in 90 dpf males along with hypertrophied lower jaw. C . Schematic of imaging apparatus (see Materials and Methods). Left: profile drawing of animal placement under objective. Right: dorsal view of adult placed in putty holder with perfusion mouthpiece. Fish imaged less than 60 dpf were imaged using an alternative setup than pictured (see Materials and Methods, Fish stabilization for imaging). D. 30, 21, and 14 dpf example fish depicting changes in swim bladder (SB) separation into anterior and posterior chambers. Scale bar indicates 500 μm for all images. E . Schematic of representative D. dracula brain; illustrations based on pictures of dissected whole brains. Brain regions of morphometric analysis indicated in lateral and dorsal views; green, OB (olfactory bulb); blue, telencephalon; orange, TL (torus longitudinalis); pink, TeO (optic tectum). Insert indicates horizontal slice in midbrain depicting TeO (pink), periventricular gray zone (PGZ) of TeO (purple, included in TeO measurement), depicted for indication of boundary between TeO and TS (yellow, torus semicircularis). F . Scatterplot of age in dpf of animals in this study and gross brain volume in μm 3 . Boxplots indicate median, upper and lower quartiles and 1.5× interquartile range for each Age. Gross brain volume calculation is described in and Materials and Methods. Different ages depicted by different colored dots as shown in legend: red, 5 dpf; yellow, 14 dpf; green, 21 dpf; teal, 30 dpf; blue, 60 dpf; purple, 90 dpf. As is described in Materials and Methods, we performed the best fitting quadratic regression (F 2,30= 120.8, R 2 = 0.8821, p<0.001) on log-transformed data to normalize the residuals. The green line displayed here represents the quadratic regression line based on the original (non-transformed) data, for best visual clarity and understanding.

    Article Snippet: Morphometric image analysis was performed using the software Imaris (BITPLANE, Oxford Instruments).

    Techniques: Imaging, Transformation Assay