Research Projects at Research Projects at

Intelligent Systems Intelligent Systems LaboratoryLaboratory

Ardy GoshtasbyArdy GoshtasbyComputer Science and Computer Science and

EngineeringEngineering

Wright State UniversityWright State University

Areas of researchAreas of research

Computer visionComputer vision 3-D reconstruction3-D reconstruction Image (volume) registrationImage (volume) registration

Geometric modelingGeometric modeling Curves and surfaces for designCurves and surfaces for design Curves and surface for data fittingCurves and surface for data fitting

Medical image analysisMedical image analysis Volumetric image segmentation and Volumetric image segmentation and

registrationregistration

04/19/23 2Arthur Goshtasby, CSE, WSU

3-D Scanners3-D Scanners

Micro-meter scannerMicro-meter scanner

Four-head scannerFour-head scanner

Whole-body scannerWhole-body scanner

04/19/23 3Arthur Goshtasby, CSE, WSU

Funded by NIDR, NSF, E-Tailors

Micro-meter ScannerMicro-meter Scanner

04/19/23 4Arthur Goshtasby, CSE, WSU

Architecture Sample scan

Theory

Funded by MLPC and DoD

Dental ScannerDental Scanner

04/19/23 5Arthur Goshtasby, CSE, WSU

Funded by NIDR

Scanning and reconstructing a single tooth

Scanning and reconstructing a dental cast

Four-head ScannerFour-head Scanner

04/19/23 6Arthur Goshtasby, CSE, WSU

Architecture

Theory

Example scan

Funded by NSF and OBR

Whole-body ScannerWhole-body Scanner

04/19/23 7Arthur Goshtasby, CSE, WSU

Funded by E-Tailors

Architecture

Example scanMeasuring tools

Curves and Surfaces for Curves and Surfaces for DesignDesign

04/19/23 8Arthur Goshtasby, CSE, WSU

Curves and Surfaces for Curves and Surfaces for Data FittingData Fitting

04/19/23 9Arthur Goshtasby, CSE, WSU

Surface fitting to range data Surface fitting for data smoothing

Curve fitting to image data

Rational Gaussian Curves and Rational Gaussian Curves and SurfacesSurfaces

04/19/23 10Arthur Goshtasby, CSE, WSU

Non-uniform control mesh Suitable for surface rendering of irregular meshes

Circles and sphere are easily created

Implicit Surface Implicit Surface Approximation to Irregularly Approximation to Irregularly

Spaced Range DataSpaced Range Data

04/19/23 11Arthur Goshtasby, CSE, WSU

Irregularly spaced range data Constructed models

More example surfaces

Image Registration and Image Registration and MosaickingMosaicking

04/19/23 12Arthur Goshtasby, CSE, WSU

Funded by AFRL

Six-camera images Image mosaic

Image RegistrationImage Registration

04/19/23 13Arthur Goshtasby, CSE, WSU

Funded by NIH

CT and PET volume registration for colorectal cancer surgery planning

Image RegistrationImage Registration

04/19/23 14Arthur Goshtasby, CSE, WSU

Funded by KMC

MR and CT registration for spinal surgery planning

CT spinal segmentation

Volumetric Image Volumetric Image SegmentationSegmentation

04/19/23 15Arthur Goshtasby, CSE, WSU

Funded by NASA and OAI

Providing seed point Segmentation results in 2-D and 3-D

Interactive refinement

Volume Image Volume Image RegistrationRegistration

04/19/23 16Arthur Goshtasby, CSE, WSU

Funded by AFRL and KMC

Image registration for brain-shift detection Image to atlas registration

Reconstruction of Reconstruction of Coronary TreesCoronary Trees

04/19/23 17Arthur Goshtasby, CSE, WSU

Funded by FMI Imaging

Coronary trees reconstructed in a CTA

Coronary-tree centerlines