Non-Photorealistic Rendering of Layered Materials: A Multispectral Approach
This work addresses the limitation of traditional non-photorealistic rendering techniques that ignore information outside the visible spectrum, specifically for experts in biological sciences, though it is incremental in applying multispectral data to an existing domain.
The paper tackled the problem of visualizing layered materials in biological specimens by introducing multispectral rendering techniques that use near-infrared and ultraviolet data, resulting in a system that experts found effective for biological science applications.
We present multispectral rendering techniques for visualizing layered materials found in biological specimens. We are the first to use acquired data from the near-infrared and ultraviolet spectra for non-photorealistic rendering (NPR). Several plant and animal species are more comprehensively understood by multispectral analysis. However, traditional NPR techniques ignore unique information outside the visible spectrum. We introduce algorithms and principles for processing wavelength dependent surface normals and reflectance. Our registration and feature detection methods are used to formulate stylization effects not considered by current NPR methods including: Spectral Band Shading which isolates and emphasizes shape features at specific wavelengths at multiple scales. Experts in our user study demonstrate the effectiveness of our system for applications in the biological sciences.