Comparison of real-time visualization of volumetric OCT data sets by CPU-slicing and GPU-ray casting methods
2009
We describe and compare two volume visualization methods for Optical Coherence Tomography (OCT) retinal
data sets. One of these methods is CPU-slicing, which is previously reported and used in our visualization engine.
The other is GPU-ray casting. Several metrics including image quality, performance, hardware limitations and
perception are used to grade the abilities of each method. We also discuss how to combine these methods to
make a scalable volume visualization system that supports advanced lighting and dynamic volumetric shadowing
techniques on a broad range of hardware. The feasibility of each visualization method for clinical application as
well as potential further improvements are discussed.
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