Bruce M. Cameron

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T HE SYNERGISTIC integration of comprehensive and generic tools in software systems for advanced vis~latization, .processing, and quantitative analysis of biomedical images has allowed surgeons, physicians, and basic scientists to explore large multidimensional biomedical image volumes efficiently and productively. The "toolbox" approach to biomedical(More)
We developed a method that models the effect of irregular corneal surface topography on corneal optical performance. A computer program mimics the function of an optical bench. The method generates a variety of objects (single point, standard Snellen letters, low contrast Snellen letters, arbitrarily complex objects) in object space. The lens is the corneal(More)
Cataplexy, a sudden loss of voluntary muscle control, is one of the hallmark symptoms of narcolepsy, a sleep disorder characterized by excessive daytime sleepiness. Cataplexy is usually triggered by strong, spontaneous emotions, such as laughter, surprise, fear or anger, and is more common in times of stress. The Sleep Disorders Unit and the Biomedical(More)
Minimally invasive cardiac catheter ablation procedures require effective visualization of the relevant heart anatomy and electrophysiology (EP). In a typical ablation procedure, the visualization tools available to the cardiologist include bi-plane fluoroscopy, real-time ultrasound, and a coarse 3D model which gives a rough representation of cardiac(More)
Observable objects in biology and medicine extend across a range of scale, from individual molecules and cells; through the varieties of tissue and interstitial interfaces; and to complete organs, organ systems, and body parts. These objects include functional attributes of these systems such as biophysical, biomechanical, and physiologic properties.(More)
Medical imaging data is becoming increasing valuable in interventional medicine, not only for preoperative planning, but also for real-time guidance during clinical procedures. Three key components necessary for image-guided intervention are real-time tracking of the surgical instrument, aligning the real-world patient space with image-space, and creating a(More)
Traditionally, finite element analysis or mass-spring systems are used to calculate deformations of geometric surfaces. Patient-specific geometric models can be comprised of tens of thousands, even hundreds of thousands of polygons, making finite element analysis and mass-spring systems computationally demanding. Simulations using deformable patient(More)
Virtual reality offers the promise of highly interactive, natural control of the visualization process, greatly enhancing the scientific value of the data produced by medical imaging systems. Due to the computational and real time update requirements of virtual reality interfaces, however, the complexity of polygonal surfaces which can be displayed is(More)
Virtual surgery and endoscopy use computer-generated volume renderings and/or models created from 3D medical image scans (CT or MRI) of individual patients. The patient’s anatomy, including organs and other internal structures of interest, are then traversed in a virtual “fly-through,” giving nearly the same visual impression as if the corresponding real(More)