An experimental evaluation of computer graphics imagery
ACM Transactions on Graphics (TOG)
Pictorial communication in virtual and real environments
Pictorial communication in virtual and real environments
Measuring and modeling anisotropic reflection
SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Toward a psychophysically-based light reflection model for image synthesis
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Choosing Rendering Parameters for Effective Communication of 3D Shape
IEEE Computer Graphics and Applications
Comparing Real & Synthetic Scenes using Human Judgements of Lightness
Proceedings of the Eurographics Workshop on Rendering Techniques 2000
Enhancing interactive particle visualization with advanced shading models
APGV '06 Proceedings of the 3rd symposium on Applied perception in graphics and visualization
Verification of rendering quality from measured BTFs
APGV '06 Proceedings of the 3rd symposium on Applied perception in graphics and visualization
Distortion in 3D shape estimation with changes in illumination
Proceedings of the 4th symposium on Applied perception in graphics and visualization
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The goal of this project was to determine if advanced rendering methods such as global illumination allow more accurate discrimination of shape differences than standard rendering methods such as OpenGL.To address these questions, we conducted two psychophysical experiments to measure observers' sensitivity to shape differences between a physical model and rendered images of the model. Two results stand out:• The rendering method used has a significant effect on the ability to discriminate shape. In particular, under the conditions tested, global illumination rendering improves sensitivity to shape differences.• Further, viewpoint appears to have an effect on the ability to discriminate shape. In most of the cases studied, sensitivity to small shape variations was poorer when the rendering and model viewpoints were different.The results of this work have important implications for our understanding of human shape perception and for the development of rendering tools for computer-aided design.