Effects of Rendering on Shape Perception in Automobile Design

by: James A. Ferwerda, Stephen H. Westin (Program of Computer Graphics, Cornell University), Randall C. Smith, Richard Pawlicki (General Motors R&D) 31 Mar 2007 | 16 views
Year: 2004 | Document Type: PAPER | File Format: pdf | Language: uk
Effects of Rendering on Shape Perception in Automobile Design
Proceedings of the 1st Symposium on Applied perception in graphics and visualization table of contents - Los Angeles, California, 2004.

Abstract/Summary

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.

(Source: Cornell University - Program of Computer Graphics)

read the paper


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