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Abstract #2142

Efficient and High-Quality Ray Marched Glyphs for Diffusion Tensor Imaging

Javier Ricardo Guaje Guerra1, Tania Valentina Castillo Delgado2, Serge Koudoro1, Francisco Albeiro Gomez Jaramillo2, and Eleftherios Garyfallidis1
1Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN, United States, 2Department of Mathematics, National University of Colombia, Bogota, Colombia

Synopsis

Keywords: Diffusion Analysis & Visualization, Visualization, Computer Graphics, Ray Marching, Signed Distance Functions

Motivation: Traditional rendering engines represent surfaces using simpler polygons (triangles or quads). This discretization can compromise real-time performance as more polygons are required to build smoother surfaces.

Goal(s): Develop a new efficient method for building and displaying DTI-related glyphs without compromising their visual quality using continuous geometric representations.

Approach: Ray marching is a robust technique for tracing implicit surfaces using signed distance functions (SDFs). Our method uses these techniques to create representations of commonly used DTI-related glyphs.

Results: Our SDFs glyphs make it possible to define smooth surfaces in a more efficient way that allows us to visualize more objects than traditional polygon-based renderers.

Impact: By using SOTA efficient rendering algorithms for complex elements, such as DTI-related glyphs, we improved the performance of scientific visualization systems, enabling the visualization of more extensive datasets and/or multiple types of data in real-time without sacrificing visual quality.

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Keywords