Structure from Motion with Impaired Local-Speed and Global Motion-Field Computations
Abstract
Humans can recover the three-dimensional structure of moving objects from their changing two-dimensional retinal image, in the absence of other cues to three-dimensional structure (Wallach and O'Connell 1953; Braunstein 1976). In this paper, we describe a patient, A.F., with bilateral lesions involving the visual cortex who is severely impaired on computing local-speed and global-motion fields, but who can recover structure from motion. The data suggest that although possibly useful, global-motion fields are not necessary for deriving structure from motion. We discuss these results from the perspective of theoretical models for this computation.
Cite
Text
Vaina et al. "Structure from Motion with Impaired Local-Speed and Global Motion-Field Computations." Neural Computation, 1990. doi:10.1162/NECO.1990.2.4.420Markdown
[Vaina et al. "Structure from Motion with Impaired Local-Speed and Global Motion-Field Computations." Neural Computation, 1990.](https://mlanthology.org/neco/1990/vaina1990neco-structure/) doi:10.1162/NECO.1990.2.4.420BibTeX
@article{vaina1990neco-structure,
title = {{Structure from Motion with Impaired Local-Speed and Global Motion-Field Computations}},
author = {Vaina, Lucia Maria and Grzywacz, Norberto M. and LeMay, Marjorie},
journal = {Neural Computation},
year = {1990},
pages = {420-435},
doi = {10.1162/NECO.1990.2.4.420},
volume = {2},
url = {https://mlanthology.org/neco/1990/vaina1990neco-structure/}
}