Dr. Joseph M. Reinhardt Profile

Dr. Joseph M. Reinhardt

Professor at Univ of Iowa

SPIE Involvement:

Author

Publications (54)

Proceedings Article | 2 March 2018 Presentation + Paper

Sensitivity analysis of Jacobian determinant used in treatment planning for lung cancer

Wei Shao, Sarah Gerard, Yue Pan, Taylor Patton, Joseph Reinhardt, Oguz Durumeric, John Bayouth, Gary Christensen

Proceedings Volume 10574, 1057418 (2018) https://doi.org/10.1117/12.2293920

KEYWORDS: Lung, Computed tomography, Error analysis, Image registration, Lung cancer, Biological research, Radiotherapy, Visualization, Tissues, Clinical trials

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Proceedings Article | 29 March 2013 Paper

Graph-based segmentation of the pediatric trachea in MR images to model growth

Richard Amendola, Joseph Reinhardt, Yutaka Sato, Miriam Zimmerman, Henry Diggelmann, Deborah Kacmarynski

Proceedings Volume 8672, 867210 (2013) https://doi.org/10.1117/12.2006290

KEYWORDS: Image segmentation, Magnetic resonance imaging, Computed tomography, Surgery, Image processing algorithms and systems, Error analysis, Imaging systems, Image analysis, Magnetism, 3D image processing

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Proceedings Article | 16 April 2012 Paper

Estimation of lung lobar sliding using image registration

Ryan Amelon, Kunlin Cao, Joseph Reinhardt, Gary Christensen, Madhavan Raghavan

Proceedings Volume 8317, 83171H (2012) https://doi.org/10.1117/12.911614

KEYWORDS: Lung, Image registration, Computed tomography, Image segmentation, Tissues, Motion analysis, Error analysis, Performance modeling, Distortion, Finite element methods

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Proceedings Article | 6 April 2012 Paper

Correlation of measures of regional lung ventilation from 4DCT vs. hyperpolarized helium-3 MR

Kai Ding, Kunlin Cao, Wilson Miller, Gary Christensen, Joseph Reinhardt, Stanley Benedict, Bruce Libby, Ke Sheng

Proceedings Volume 8317, 83171E (2012) https://doi.org/10.1117/12.912793

KEYWORDS: Lung, Image registration, Tissues, Magnetic resonance imaging, Computed tomography, Radiotherapy, Transform theory, 3D image processing, 3D acquisition, Image processing

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Proceedings Article | 24 February 2012 Paper

Retinal vessel width measurement at branching points using an improved electric field theory-based graph approach

Xiayu Xu, Michael Abràmoff, Geir Bertelsen, Joseph Reinhardt

Proceedings Volume 8314, 83144K (2012) https://doi.org/10.1117/12.911831

KEYWORDS: Image segmentation, Binary data, Blood vessels, Machine learning, Image processing, Arteries, Image analysis, Inspection, Gaussian filters, Biomedical engineering

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Proceedings Article | 23 February 2012 Paper

Automated artery-venous classification of retinal blood vessels based on structural mapping method

Vinayak Joshi, Mona Garvin, Joseph Reinhardt, Michael Abramoff

Proceedings Volume 8315, 83151C (2012) https://doi.org/10.1117/12.911490

KEYWORDS: Image segmentation, Arteries, Veins, Feature extraction, Image classification, Blood vessels, Gold, Fuzzy logic, Visualization, Diagnostics

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Proceedings Article | 14 March 2011 Paper

Simultaneous automatic detection of optic disc and fovea on fundus photographs

Xiayu Xu, Mona Garvin, Michael Abràmoff, Joseph Reinhardt

Proceedings Volume 7962, 79622T (2011) https://doi.org/10.1117/12.877801

KEYWORDS: Feature extraction, Image classification, Eye, Photography, Image segmentation, Blood vessels, Binary data, Feature selection, Image quality, Biomedical optics

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Proceedings Article | 4 March 2011 Paper

Automated method for the identification and analysis of vascular tree structures in retinal vessel network

Vinayak Joshi, Mona Garvin, Joseph Reinhardt, Michael Abramoff

Proceedings Volume 7963, 79630I (2011) https://doi.org/10.1117/12.878712

KEYWORDS: Image segmentation, Arteries, Veins, Blood vessels, Image classification, Feature extraction, Image processing, Algorithm development, Associative arrays, Structural analysis

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Proceedings Article | 13 March 2010 Paper

Retinal atlas statistics from color fundus images

Sangyeol Lee, Michael Abramoff, Joseph Reinhardt

Proceedings Volume 7623, 762310 (2010) https://doi.org/10.1117/12.843714

KEYWORDS: Image registration, Image segmentation, Retina, Optical discs, Principal component analysis, Image processing, Distortion, Visualization, Computer aided diagnosis and therapy, Macula

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Proceedings Article | 13 March 2010 Paper

Tissue volume and vesselness measure preserving nonrigid registration of lung CT images

Kunlin Cao, Kai Ding, Gary Christensen, Joseph Reinhardt

Proceedings Volume 7623, 762309 (2010) https://doi.org/10.1117/12.844541

KEYWORDS: Lung, Image registration, Tissues, Computed tomography, Error analysis, Blood vessels, Image processing, Algorithm development, Data acquisition, Image segmentation

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Proceedings Article | 9 March 2010 Paper

Automated measurement of retinal blood vessel tortuosity

Vinayak Joshi, Joseph Reinhardt, Michael Abramoff

Proceedings Volume 7624, 76243A (2010) https://doi.org/10.1117/12.844641

KEYWORDS: Blood vessels, Arteries, Veins, Image segmentation, Retina, Visualization, Algorithm development, Gold, Blood circulation, Eye

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Proceedings Article | 9 March 2010 Paper

Human airway tree structure query atlas

Gary Christensen, Nathan Burnette, Weichen Gao, Matineh Shaker, Joseph Reinhardt, Janice Cook-Granroth, Geoffrey McLennan, Eric Hoffman

Proceedings Volume 7626, 762611 (2010) https://doi.org/10.1117/12.844596

KEYWORDS: Lung, Databases, Computed tomography, Image segmentation, Human-machine interfaces, Data acquisition, Diagnostics, Computer engineering, Oncology, Medicine

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Proceedings Article | 27 February 2009 Paper

Registration-based regional lung mechanical analysis: retrospectively reconstructed dynamic imaging versus static breath-hold image acquisition

Kai Ding, Kunlin Cao, Gary Christensen, Eric Hoffman, Joseph Reinhardt

Proceedings Volume 7262, 72620D (2009) https://doi.org/10.1117/12.813694

KEYWORDS: Lung, Image registration, Computed tomography, Tissues, Xenon, Image acquisition, 3D image processing, Error analysis, Image analysis, 3D acquisition

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Proceedings Article | 11 March 2008 Paper

Retinal image mosaicing using the radial distortion correction model

Sangyeol Lee, Michael Abràmoff, Joseph Reinhardt

Proceedings Volume 6914, 691435 (2008) https://doi.org/10.1117/12.773161

KEYWORDS: Distortion, Image registration, Affine motion model, Cameras, Retina, Image restoration, Retinal scanning, Image processing, Visualization, Diagnostics

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Proceedings Article | 11 March 2008 Paper

Tracking the hyoid bone in videofluoroscopic swallowing studies

Patrick Kellen, Darci Becker, Joseph Reinhardt, Douglas van Daele

Proceedings Volume 6914, 69142D (2008) https://doi.org/10.1117/12.771198

KEYWORDS: Spine, Bone, Gold, Detection and tracking algorithms, Barium, Motion analysis, Radon transform, Automatic tracking, Image segmentation, Kinematics

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Proceedings Article | 29 March 2007 Paper

Three-dimensional murine airway segmentation in micro-CT images

Lijun Shi, Jacqueline Thiesse, Geoffrey McLennan, Eric Hoffman, Joseph Reinhardt

Proceedings Volume 6511, 651105 (2007) https://doi.org/10.1117/12.711213

KEYWORDS: Image segmentation, Lung, 3D image processing, In vivo imaging, Preclinical imaging, Reconstruction algorithms, Visualization, Computed tomography, Image analysis, Imaging systems

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Proceedings Article | 8 March 2007 Paper

Three-dimensional histopathology of lung cancer with multimodality image registration

Jessica de Ryk, Jamie Weydert, Gary Christensen, Jacqueline Thiesse, Eman Namati, Joseph Reinhardt, Eric Hoffman, Geoffrey McLennan

Proceedings Volume 6512, 65122F (2007) https://doi.org/10.1117/12.710597

KEYWORDS: Tissues, Tumors, Lung cancer, Image registration, Neural networks, 3D image processing, Computed tomography, Cancer, Lung, Microscopy

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Proceedings Article | 8 March 2007 Paper

Feature-based pairwise retinal image registration by radial distortion correction

Sangyeol Lee, Michael Abràmoff, Joseph Reinhardt

Proceedings Volume 6512, 651220 (2007) https://doi.org/10.1117/12.710676

KEYWORDS: Distortion, Image registration, Affine motion model, Cameras, Retina, Eye models, Image segmentation, Image acquisition, Retinal scanning, Image processing

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Proceedings Article | 10 March 2006 Paper

Automatic segmentation of pulmonary fissures in x-ray CT images using anatomic guidance

Soumik Ukil, Milan Sonka, Joseph Reinhardt

Proceedings Volume 6144, 61440N (2006) https://doi.org/10.1117/12.655090

KEYWORDS: Image segmentation, Lung, X-ray computed tomography, X-ray imaging, X-rays, Computed tomography, Emphysema, Distance measurement, Pathology, Functional analysis

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Proceedings Article | 10 March 2006 Paper

Establishing multi-modality datasets with the incorporation of 3D histopathology for soft tissue classification

Jessica de Ryk, Jacqueline Thiesse, Joseph Reinhardt, Eric Hoffman, Geoffrey McLennan

Proceedings Volume 6144, 614437 (2006) https://doi.org/10.1117/12.654480

KEYWORDS: Tissues, Algorithm development, Image classification, Image registration, Image processing, Lung, Imaging systems, Blood vessels, Imaging arrays, 3D acquisition

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SPIE Journal Paper | 1 September 2005 Open Access

Macro-optical color assessment of the pulmonary airways with subsequent three-dimensional multidetector-x-ray-computed-tomography assisted display

Melissa Suter, Geoffrey McLennan, Joseph Reinhardt, David Riker, Eric Hoffman

JBO, Vol. 10, Issue 05, 051703, (September 2005) https://doi.org/10.1117/12.10.1117/1.2112767

KEYWORDS: Bronchoscopy, 3D image processing, Image fusion, Distortion, Visualization, Endoscopes, Imaging systems, Databases, Image processing, Charge-coupled devices

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SPIE Journal Paper | 1 May 2005 Open Access

Bronchoscopic imaging of pulmonary mucosal vasculature responses to inflammatory mediators

Melissa Suter, Geoffrey McLennan, Joseph Reinhardt, Paul Montague, Peter Taft, John Lee, Joseph Zabner

JBO, Vol. 10, Issue 03, 034013, (May 2005) https://doi.org/10.1117/12.10.1117/1.1924714

KEYWORDS: Imaging systems, Image filtering, Blood circulation, Optical filters, Tissues, Bronchoscopy, Linear filtering, Blood, Image processing, Internal medicine

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Proceedings Article | 29 April 2005 Paper

3D pulmonary airway color image reconstruction via shape from shading and virtual bronchoscopy imaging techniques

Melissa Suter, Joseph Reinhardt, Eric Hoffman, Geoffrey McLennan

Proceedings Volume 5747, (2005) https://doi.org/10.1117/12.596544

KEYWORDS: Bronchoscopy, 3D image processing, Distortion, Image segmentation, Endoscopes, Computed tomography, Visualization, Image registration, 3D image reconstruction, Databases

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Proceedings Article | 29 April 2005 Paper

Automatic lung lobe segmentation in x-ray CT images by 3D watershed transform using anatomic information from the segmented airway tree

Soumik Ukil, Eric Hoffman, Joseph Reinhardt

Proceedings Volume 5747, (2005) https://doi.org/10.1117/12.596752

KEYWORDS: Image segmentation, Lung, X-ray computed tomography, X-ray imaging, X-rays, 3D image processing, Image processing algorithms and systems, Computed tomography, Distance measurement, Image processing

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Proceedings Article | 29 April 2005 Paper

The use and benefit of stereology in choosing a CT scanning protocol for the lung

Zvi Markowitz, Murray Loew, Joseph Reinhardt

Proceedings Volume 5747, (2005) https://doi.org/10.1117/12.595657

KEYWORDS: Lung, Computed tomography, Collimation, Scanners, Solids, Data processing, Data acquisition, 3D image processing, Statistical analysis, Computer engineering

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Proceedings Article | 14 April 2005 Paper

Classification of pulmonary airway disease based on mucosal color analysis

Melissa Suter, Joseph Reinhardt, David Riker, John Scott Ferguson, Geoffrey McLennan

Proceedings Volume 5746, (2005) https://doi.org/10.1117/12.595938

KEYWORDS: Image classification, Image processing, Databases, Charge-coupled devices, Visualization, Principal component analysis, Bronchoscopy, Neural networks, RGB color model, Video

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Proceedings Article | 14 April 2005 Paper

Estimation of regional lung expansion via 3D image registration

Yan Pan, Dinesh Kumar, Eric Hoffman, Gary Christensen, Geoffrey McLennan, Joo Hyun Song, Alan Ross, Brett Simon, Joseph Reinhardt

Proceedings Volume 5746, (2005) https://doi.org/10.1117/12.596617

KEYWORDS: Lung, Image registration, Image segmentation, Tissues, 3D image processing, Computed tomography, X-ray computed tomography, Scanners, Magnetic resonance imaging, Biological research

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Proceedings Article | 14 April 2005 Paper

Virtual bronchoscopy for quantitative airway analysis

Atilla Kiraly, Joseph Reinhardt, Eric Hoffman, Geoffrey McLennan, William Higgins

Proceedings Volume 5746, (2005) https://doi.org/10.1117/12.595283

KEYWORDS: Image segmentation, Stereolithography, 3D image processing, 3D metrology, Bronchoscopy, Analytical research, Visualization, Image processing, Chest, System integration

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Proceedings Article | 14 April 2005 Paper

Three-dimensional visual truth of the normal airway tree for use as a quantitative comparison to micro-CT reconstructions

Jacqueline Thiesse, Joseph Reinhardt, Jessica de Ryk, Eman Namati, Jessica Leinen, Wolfgang Recheis, Eric Hoffman, Geoffrey McLennan

Proceedings Volume 5746, (2005) https://doi.org/10.1117/12.596806

KEYWORDS: Lung, Tissues, Pathology, 3D modeling, Image segmentation, 3D metrology, 3D image processing, Mouse models, Imaging systems, Visualization

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Proceedings Article | 13 July 2004 Paper

A whole organ serial sectioning and imaging system for correlation of pathology to computer tomography

Jessica de Ryk, Eman Namati, Joseph Reinhardt, Christopher Piker, Ye Xu, Le Liu, Eric Hoffman, Geoffrey McLennan

Proceedings Volume 5324, (2004) https://doi.org/10.1117/12.529137

KEYWORDS: Computed tomography, Pathology, Image registration, Tissues, Lung, Algorithm development, Image processing, Composites, Natural surfaces, Imaging systems

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Proceedings Article | 12 May 2004 Paper

Smoothing lung segmentation surfaces in 3D x-ray CT images using anatomic guidance

Soumik Ukil, Joseph Reinhardt

Proceedings Volume 5370, (2004) https://doi.org/10.1117/12.536891

KEYWORDS: Lung, Image segmentation, 3D image processing, Image processing, X-ray computed tomography, Smoothing, Computed tomography, X-ray imaging, X-rays, Statistical analysis

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Proceedings Article | 30 April 2004 Paper

Segmentation of the ovine lung in 3D CT Images

Lijun Shi, Eric Hoffman, Joseph Reinhardt

Proceedings Volume 5369, (2004) https://doi.org/10.1117/12.536971

KEYWORDS: Lung, Image segmentation, Computed tomography, 3D image processing, Computer programming, Data modeling, Tissues, Image processing algorithms and systems, Animal model studies, Physiology

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Proceedings Article | 30 April 2004 Paper

Three-dimensional true color topographical analysis of the pulmonary airways

Melissa Suter, Joseph Reinhardt, Milan Sonka, William Higgins, Eric Hoffman, Geoffrey McLennan

Proceedings Volume 5369, (2004) https://doi.org/10.1117/12.535316

KEYWORDS: 3D image processing, Computed tomography, Imaging systems, Video, Charge-coupled devices, Image segmentation, Endoscopes, Video processing, Image processing, RGB color model

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Proceedings Article | 15 May 2003 Paper

Classification of mammographic masses: comparison between backpropagation neural network (BNN) and human readers

Lina Arbach, Darus Bennett, Joseph Reinhardt, Ghassan Fallouh

Proceedings Volume 5032, (2003) https://doi.org/10.1117/12.480864

KEYWORDS: Neural networks, Breast cancer, Breast, Biopsy, Image segmentation, Mammography, Feature extraction, Cancer, Image processing, Lung cancer

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Proceedings Article | 2 May 2003 Paper

Atlas-driven lung lobe segmentation in volumetric x-ray CT images

Li Zhang, Eric Hoffman, Joseph Reinhardt

Proceedings Volume 5031, (2003) https://doi.org/10.1117/12.480436

KEYWORDS: Image segmentation, Lung, Computed tomography, X-ray computed tomography, Image analysis, Statistical analysis, Image registration, Image processing algorithms and systems, Ridge detection, X-ray imaging

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Proceedings Article | 24 April 2002 Paper

3D intersubject warping and registration of pulmonary CT images for a human lung model

Baojun Li, Gary Christensen, John Dill, Eric Hoffman, Joseph Reinhardt

Proceedings Volume 4683, (2002) https://doi.org/10.1117/12.463598

KEYWORDS: Lung, Image registration, Computed tomography, 3D image processing, Image segmentation, 3D modeling, Image processing, Visualization, Computer simulations, Scanners

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Proceedings Article | 24 April 2002 Paper

3D human airway segmentation for virtual bronchoscopy

Atilla Kiraly, William Higgins, Eric Hoffman, Geoffrey McLennan, Joseph Reinhardt

Proceedings Volume 4683, (2002) https://doi.org/10.1117/12.463580

KEYWORDS: Image segmentation, 3D image processing, Lung, Image processing algorithms and systems, Digital filtering, Computed tomography, Image filtering, Bronchoscopy, Chest, 3D scanning

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Proceedings Article | 24 April 2002 Paper

Color analysis of the human airway wall

Deepa Gopalakrishnan, Geoffrey McLennan, Martin Donnelley, Angela Delsing, Melissa Suter, Dawn Flaherty, Joseph Zabner, Eric Hoffman, Joseph Reinhardt

Proceedings Volume 4683, (2002) https://doi.org/10.1117/12.463600

KEYWORDS: RGB color model, Calibration, Imaging systems, Cystic fibrosis, Frame grabbers, Light sources, Bronchoscopy, Inflammation, Lung, Video

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Proceedings Article | 3 July 2001 Paper

Automatic generation of object shape models and their application to tomographic image segmentation

Baojun Li, Joseph Reinhardt

Proceedings Volume 4322, (2001) https://doi.org/10.1117/12.431101

KEYWORDS: Image segmentation, 3D modeling, Statistical modeling, Shape analysis, 3D image processing, Statistical analysis, Tomography, Computed tomography, Motion models, Lung

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Proceedings Article | 21 May 2001 Paper

Lung lobe segmentation by graph search with 3D shape constraints

Li Zhang, Eric Hoffman, Joseph Reinhardt

Proceedings Volume 4321, (2001) https://doi.org/10.1117/12.428138

KEYWORDS: Fuzzy logic, Lung, Image segmentation, 3D image processing, X-ray computed tomography, Tissues, Image analysis, Fuzzy systems, Image registration, Image processing

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Proceedings Article | 21 May 2001 Paper

Evaluation and application of 3D lung warping and registration model using HRCT images

Li Fan, Chang Chen, Joseph Reinhardt, Eric Hoffman

Proceedings Volume 4321, (2001) https://doi.org/10.1117/12.428141

KEYWORDS: Lung, 3D modeling, 3D image processing, Motion models, Image registration, Tissues, Computed tomography, Optical flow, Data modeling, Virtual colonoscopy

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Proceedings Article | 20 April 2000 Paper

Computed tomographic-based estimation of airway size with correction for scanned plane tilt angle

Osama Saba, Eric Hoffman, Joseph Reinhardt

Proceedings Volume 3978, (2000) https://doi.org/10.1117/12.383440

KEYWORDS: 3D modeling, Point spread functions, Error analysis, 3D scanning, Lung, Process modeling, Computed tomography, Laser scanners, Data modeling, 3D image processing

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Proceedings Article | 20 April 2000 Paper

3D pulmonary CT image registration with a standard lung atlas

Li Zhang, Joseph Reinhardt

Proceedings Volume 3978, (2000) https://doi.org/10.1117/12.383441

KEYWORDS: Image registration, Lung, Image segmentation, Computed tomography, 3D image processing, Image processing, Image analysis, Image restoration, 3D imaging standards, Human subjects

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Proceedings Article | 20 May 1999 Paper

Detection of lung lobar fissures using fuzzy logic

Li Zhang, Joseph Reinhardt

Proceedings Volume 3660, (1999) https://doi.org/10.1117/12.349589

KEYWORDS: Lung, Fuzzy logic, Image segmentation, Image analysis, X-ray computed tomography, 3D image processing, Error analysis, Image registration, Image processing, X-rays

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Proceedings Article | 3 July 1998 Paper

Automatic axis generation for 3D virtual-bronchoscopic image assessment

Roderick Swift, William Higgins, Eric Hoffman, Geoffrey McLennan, Joseph Reinhardt

Proceedings Volume 3337, (1998) https://doi.org/10.1117/12.312590

KEYWORDS: 3D image processing, Optical spheres, 3D modeling, Image segmentation, Navigation systems, Spherical lenses, Computed tomography, Information operations, Image analysis, Bronchoscopy

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SPIE Journal Paper | 1 February 1998

Paradigm for shape-based image analysis

Joseph Reinhardt, William Higgins

OE, Vol. 37, Issue 02, (February 1998) https://doi.org/10.1117/12.10.1117/1.601857

KEYWORDS: Image segmentation, Image processing, Image analysis, 3D image processing, Lung, Optical engineering, Heart, Solids, Optical components, Shape analysis

Proceedings Article | 9 May 1997 Paper

Intrathoracic airway measurement: ex-vivo validation

Joseph Reinhardt, Stephen Raab, Neil D'Souza, Eric Hoffman

Proceedings Volume 3033, (1997) https://doi.org/10.1117/12.274031

KEYWORDS: Model-based design, Lung, Gold, Pathology, X-ray computed tomography, Tissues, Computed tomography, Microscopes, Data modeling, Scanners

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High-resolution x-ray CT (HRCT) provides detailed images of the lungs and bronchial tree. HRCT-based imaging and quantitation of peripheral bronchial airway geometry provides a valuable tool for assessing regional airway physiology. Such measurements have been sued to address physiological questions related to the mechanics of airway collapse in sleep apnea, the measurement of airway response to broncho-constriction agents, and to evaluate and track the progression of disease affecting the airways, such as asthma and cystic fibrosis. Significant attention has been paid to the measurements of extra- and intra-thoracic airways in 2D sections from volumetric x-ray CT. A variety of manual and semi-automatic techniques have been proposed for airway geometry measurement, including the use of standardized display window and level settings for caliper measurements, methods based on manual or semi-automatic border tracing, and more objective, quantitative approaches such as the use of the 'half-max' criteria. A recently proposed measurements technique uses a model-based deconvolution to estimate the location of the inner and outer airway walls. Validation using a plexiglass phantom indicates that the model-based method is more accurate than the half-max approach for thin-walled structures. In vivo validation of these airway measurement techniques is difficult because of the problems in identifying a reliable measurement 'gold standard.' In this paper we report on ex vivo validation of the half-max and model-based methods using an excised pig lung. The lung is sliced into thin sections of tissue and scanned using an electron beam CT scanner. Airways of interest are measured from the CT images, and also measured with using a microscope and micrometer to obtain a measurement gold standard. The result show no significant difference between the model-based measurements and the gold standard; while the half-max estimates exhibited a measurement bias and were significantly different than the gold standard.

Proceedings Article | 9 May 1997 Paper

Segmentation and quantitation of the primary human airway tree

Rajendra Chiplunkar, Joseph Reinhardt, Eric Hoffman

Proceedings Volume 3033, (1997) https://doi.org/10.1117/12.274066

KEYWORDS: Image segmentation, Lung, Image processing, Pathology, Stochastic processes, Visualization, Medical imaging, Data modeling, Bronchoscopy, Data acquisition

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Proceedings Article | 9 May 1997 Paper

Intrathoracic airway wall detection using graph search and scanner PSF information

Joseph Reinhardt, Wonkyu Park, Eric Hoffman, Milan Sonka

Proceedings Volume 3033, (1997) https://doi.org/10.1117/12.274033

KEYWORDS: Image segmentation, Data modeling, Computed tomography, X-ray computed tomography, Lung, Fuzzy logic, In vivo imaging, Model-based design, Error analysis, 3D image processing

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Proceedings Article | 8 April 1996 Paper

ASAP: interactive quantification of 2D airway geometry

Neil D'Souza, Joseph Reinhardt, Eric Hoffman

Proceedings Volume 2709, (1996) https://doi.org/10.1117/12.237860

KEYWORDS: Image segmentation, Lung, Computed tomography, Image analysis, X-ray computed tomography, Scanners, Control systems, 3D metrology, Physiology, X-ray technology

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Evaluation of most normal and patho-pulmonary physiology has relied upon indirect measures of pulmonary function which yield global estimates of underlying structural and functional deficits, which are usually very heterogeneous in nature. Early signs of disease are not recognizable by these techniques, nor are they usually recognizable by the manifestation of physical symptoms. As X-ray CT technology has improved, imaging has held a promise to provide the detailed information here-to-fore missing in standard pulmonary function evaluations. A full solution to the imaging and analysis problem requires true dynamic volumetric approaches to facilitate tracking the lung through space during respiratory maneuvers, and following the radiopacified blood and airflow tracers as they pass through the pulmonary vascular bed or wash in or out of the alveolar air spaces. However, high- resolution, high-speed, stacked single-slice approaches for lung imaging have brought the state-of-the-art to a point where quantitative airway evaluation can play an important role in the study of lung disease and normal lung physiology, if one limits the evaluation to those airway segmented sliced in true cross-sections, or to the evaluation of those airway segments for which a true cross-sectional image can be reformatted from the original stacked sections. This paper presents a software system, called ASAP (for Airway Segmentation and Analysis Program), which provides a rapid, minimally-interactive method for objective identification of airway borders and the reporting of associated geometric measures of diameters and wall thicknesses. We demonstrate that this system yields highly reproducible results both within and between observers, and quantitative measures are accurate to within the resolution of the scanner when phantoms of known geometry are evaluated. Results included here demonstrate that the well-accepted half-max criteria for border definition is a rough approximation, which when applied to structures such as intrathoracic airways yields incorrect results. Our analysis shows that the inner and outer wall detection thresholds must be customized based upon the size of the structure of interest.

Proceedings Article | 8 April 1996 Paper

Semiautomatic 4D analysis of cardiac image sequences

William Higgins, Andrien Wang, Joseph Reinhardt

Proceedings Volume 2709, (1996) https://doi.org/10.1117/12.237878

KEYWORDS: Image segmentation, Image analysis, 3D image processing, Biopsy, Heart, Image processing, Medical imaging, Image enhancement, Binary data, Distance measurement

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Proceedings Article | 9 September 1994 Paper

Semiautomatic construction of 3D medical image-segmentation processes

William Higgins, Joseph Reinhardt, Werner Sharp

Proceedings Volume 2359, (1994) https://doi.org/10.1117/12.185216

KEYWORDS: Image segmentation, 3D image processing, Image processing, Surgery, Image filtering, Copper, Biopsy, Medical imaging, 3D metrology, Computing systems

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Proceedings Article | 1 May 1994 Paper

Graphical user interface system for 3D medical image analysis

William Higgins, Werner Sharp, M. Hansen, Joseph Reinhardt

Proceedings Volume 2164, (1994) https://doi.org/10.1117/12.174045

KEYWORDS: 3D image processing, 3D displays, Image analysis, Image processing, Copper, Medical imaging, 3D metrology, Visualization, Biopsy, Human-machine interfaces

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Proceedings Article | 22 October 1993 Paper

Flexible search-based approach for morphological shape decomposition

Joseph Reinhardt, William Higgins

Proceedings Volume 2094, (1993) https://doi.org/10.1117/12.157901

KEYWORDS: Chemical elements, Mathematical morphology, Shape analysis, Image compression, Binary data, Image processing, Error analysis, Computer programming, Aluminum, Chlorine

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