Spatial scale in stereo and shape from shading: Image input, mechanisms, and 
tasks

Mallot, HA

doi:10.1068/p261137

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Spatial scale in stereo and shape from shading: Image input, mechanisms, and tasks

MPS-Authors

/persons/resource/persons84072

Mallot, HA
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

External Resource

https://journals.sagepub.com/doi/10.1068/p261137
(Publisher version)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Mallot, H. (1997). Spatial scale in stereo and shape from shading: Image input, mechanisms, and tasks. Perception, 26(9), 1137-1146. doi:10.1068/p261137.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-E9E8-4

Abstract

The problem of spatial scale in depth perception can be considered at three stages: image input, mechanisms, and depth descriptors specific for certain tasks. A review is presented of a number of earlier experiments supporting the distinction between a coarse, correlation-based mechanism and a feature-matching mechanism of stereopsis in terms of their respective inputs and outputs. In order to measure the influence of the correlation mechanism on the perception of three-dimensional shape, a shape-probe experiment was designed. For smooth intensity profiles with constant disparity, the results show that perceived shape is largely independent of overall disparity but does make use of shape from shading as well as the assumption that brighter parts are in front (proximity - luminance covariance).