Distortions of Space in Stereoscopic 3D Content

In S3D film, many factors affect the relationship between the depth in the acquired scene and depth eventually produced by the stereoscopic display. Many are geometric including camera interaxial, camera convergence, lens properties, viewing distance and angle, screen/projector properties and anatomy (interocular). Spatial distortions follow at least in part from geometry (including the cardboard cut-out effect, miniaturization/gigantism, space-size distortion, and object-speed distortion), and can cause a poor S3D experience. However, it is naïve to expect spatial distortion to be specified only by geometry — visual experience is heavily influenced by perceptual and cognitive factors. This paper will review geometrical predictions and present the results of experiments which assess S3D distortions in the context of content, cognitive and perceptual influences, and individual differences. We will suggest ways to assess the influence of acquisition and display parameters and to mitigate unwanted perceptual phenomena.

Published

2011-06

Content type

Original Research

Keywords

S3D, stereoscopic depth perception, stereoscopic distortions

DOI

10.5594/M001420

ISBN

978-1-61482-951-5