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H.-P.: 3D unsharp masking for scene coherent enhancement (2008)
| Content Provider | CiteSeerX |
|---|---|
| Author | Ritschel, Tobias Smith, Kaleigh Ihrke, Matthias Grosch, Thorsten Myszkowski, Karol Seidel, Hans-Peter Informatik, Mpi |
| Abstract | technique is coherent with the scene itself, not simply with each rendered frame, permits arbitrary lighting and is temporally coherent. We present a new approach for enhancing local scene contrast by unsharp masking over arbitrary surfaces under any form of illumination. Our adaptation of a well-known 2D technique to 3D interactive scenarios is designed to aid viewers in tasks like understanding complex or detailed geometric models, medical visualization and navigation in virtual environments. Our holistic approach enhances the depiction of various visual cues, including gradients from surface shading, surface reflectance, shadows, and highlights, to ease estimation of viewpoint, lighting conditions, shapes of objects and their world-space organization. Motivated by recent perceptual findings on 3D aspects of the Cornsweet illusion, we create scene coherent enhancements by treating cues in terms of their 3D context; doing so has a stronger effect than approaches that operate in a 2D image context and also achieves temporal coherence. We validate our unsharp masking in 3D with psychophysical experiments showing that the enhanced images are perceived to have better contrast and are preferred over unenhanced originals. Our operator runs at real-time rates on a GPU and the effect is easily controlled interactively within the rendering pipeline. |
| File Format | |
| Journal | ACM Trans. Graph. (Proc. of SIGGRAPH |
| Language | English |
| Publisher Date | 2008-01-01 |
| Access Restriction | Open |
| Subject Keyword | Unsharp Masking Scene Coherent Enhancement Holistic Approach Various Visual Cue Surface Shading Enhanced Image Surface Reflectance Geometric Model Medical Visualization Image Context Cornsweet Illusion Aid Viewer Unenhanced Original Recent Perceptual Finding Arbitrary Surface World-space Organization Psychophysical Experiment Real-time Rate New Approach Virtual Environment Temporal Coherence Interactive Scenario Arbitrary Lighting Local Scene Contrast |
| Content Type | Text |
| Resource Type | Article |
