Accession Number : AD1037473

Title :   Development and Verification of Body Armor Target Geometry Created Using Computed Tomography Scans

Descriptive Note : Technical Report,01 May 2016,01 May 2017

Corporate Author : US Army Research Laboratory Aberdeen Proving Ground United States

Personal Author(s) : Kulaga,Autumn R ; Loftis,Kathryn L ; Murray,Eric

Full Text :

Report Date : 13 Jul 2017

Pagination or Media Count : 26

Abstract : This report documents a novel technique for creating target geometry, which includes computed tomography (CT) scanning, segmentation, and retopology of the Improved Outer Tactical Vest and Soldier Protection System (SPS) armor systems. SPS target geometry was created for use in MUVES/ Operational Requirement-based Casualty Assessment (ORCA) preshot prediction modeling analysis. Previous methods of target geometry modeling consisted of manual measurement of armor systems and translating those measurements to computer-aided design geometry, which can be tedious and error prone. Here we demonstrate proof of concept by dressing a foam representation of the ORCA man with the armor systems. The manikin was scanned using a medical CT scanner. The scans were then loaded into Materialises Mimics software, segmented, and exported as 3-D geometry. This geometry was then loaded into Pixologics ZBrush software for geometry cleanup and retopology. The retopologized model was then loaded into Rhino3D software to create target surface geometry for MUVES/ORCA. The completed SPS large ORCA measurements were all within 5 of the physical measurements, verifying that the process used to create the geometry resulted in the appropriate sizes on the ORCA model.

Descriptors :   xray computed tomography , computeraided design , body armor , personal protective equipment , diagnostic imaging , nondestructive testing , high resolution , computer vision , scanning , measurement , geometry , test and evaluation

Subject Categories : Armor
      Protective Equipment
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE