Voxel-Based Body Modification Software which Preserves Internal Organs and Structures

Period of Performance: 05/15/2000 - 02/15/2001


Phase 1 SBIR

Recipient Firm

Remcom, Inc.
315 South Allen Street Suite 416
State College, PA 16801
Principal Investigator


The interaction of radio frequency electromagnetic energy with the human body is best computed with finite difference methods. For good accuracy, especially at higher frequencies, the human body must be described by many millions of individual voxels. The voxels fill the entire volume of the body and describe both the outer surface and interior organs of the body. Making one detailed voxel mesh of the human body is a significant project that may take years of effort. The result will be a voxel mesh for only one position of the body. However, different applications will require the body limbs to be repositioned. The body might be seated, keeling, standing, or holding a cellular phone. Modifying the voxel mesh of the body to the new positions while maintaining the integrity of the internal organs is a difficult task, beyond the capabilities of currently-available computer aided design software. In this effort the ability to manipulate large three-dimensional voxel-based meshes, primarily of the human body, while maintaining the fidelity of the mesh, will be developed. The accurate determination of electromagnetic fields inside the human body is an important factor in determining the safety of existing radiation sources, including radar antennas, communication devices, and other devices which radiate electromagnetic energy. The ability to predict the electromagnetic fields that will exist inside a human body due to a new device being designed will decrease design and testing costs and increase product safety, performance,and reliability. Accurate predictions of radiation exposure require that the body be realistically positioned relative to the emitting device and the surroundings. For example, the body might be seated in an aircraft or standing while holding a radio transmitter. Potential commercial customers for this capability includemanufacturers of wireless devices including wireless local area networks,pagers, and cellular telephones. Medical electronics manufacters including thoseof implantable devices such as pacemakers are also potential commercial usersof the proposed research.