Emphasis and focussing techniques are designed to consider the importance of objects within the rendering process. Such techniques are essential in medical education and therapy planning systems. Non-photorealistic rendering techniques, such as silhouette lines, are essential in this context as they convey the shape of objects without occluding large areas. We discuss emphasis and focussing by ...

We present a novel framework for non-photorealistic rendering (NPR) based on view-dependent geometric simplification techniques. Following a common thread in NPR research, we represent the model as a system of particles, which will be rendered as strokes in the final image and which may optionally overlay a polygonal surface. Our primary contribution is the use of a hierarchical view-dependent ...

This paper proposes the necessity of developing a theory of psychology within non-photorealistic rendering (NPR). Despite the inherent flexibility of NPR within a variety of visual media, the psychological functionality of NPR remains largely unexplored. As such, we consider aspects of NPR in terms of general, biological, social, and environmental psychology paradigms using results from recent ...

This paper presents an algorithm and its applications for artistic rendering of recorded video data following ideas of non-photorealistic rendering. The proposed algorithm does not only work on a variety of artistic rendering styles for static photography but it can also be applied to the creation of artistic videos. Cartoon-like and comic-like styles are the two artistic styles considered in t...

precise localization of the third molars in relation to the inferior alveolar nerve canal is critical from a clinical point of view and strongly affects the surgical treatment outcome. recently, by using three-dimensional modeling software, the relationship of third molar root apices and inferior alveolar nerve canal can be better understood. in this study, the spatial relationship of two surgi...

In the real world, light sources emit photons which normally travel in straight lines until they interact with a surface or a volume. When a photon encounters a surface, it may either be absorbed, reflected or transmitted. Some of these photons may hit the retina of an observer where they are converted into a signal which is then processed by the brain, thus forming an image. Similarly, photons...