A Conference on Three-Dimensional Representation held in University of Minnesota on 24-26 May 1989 (original) (raw)

1989

This is the final report for a conference grant entitled: A conference on Three-Dimensional Representation. The two and one-half day conference was held at the University of Minn. on May 24 to 26, 1989 to evaluate the current status of problem associated with three-dimensional representations from current computational, psychological, development, and neurophysiological perspectives. Nineteen presentations were made spanning these approaches.

How are three-dimensional objects represented in the brain?

1995

Abstract In this report we discuss a variety of psychophysical experiments that explore different aspects of the problem of object recognition and representation in human vision. In all experiments, subjects were presented with realistically rendered images of computer-generated 3D objects, with tight control over stimulus shape, surface properties, illumination, and viewpoint, as well as subjects' prior exposure to the stimulus objects.

Representation of three-dimensional visual space in the cerebral cortex

Canadian Journal of Physiology and Pharmacology, 1988

This article reviews two issues relevant to the topic of how three-dimensional space is represented in the cerebral cortex. The first is the question of how individual neurons encode information that might contribute to stereoscopic estimation of visual depth. Particular attention is given to the current understanding of the neural representation of motion through three-dimensional space and to the complexities that arise in interpreting neuronal responses to this complex stimulus parameter. The second issue considered is the disorderliness that exists in the retinotopic mapping of the visual field in some cortical visual areas. Several extrastriate areas have been found to contain maps of the contralateral visual hemifield that are disorderly in the sense that the representation of various parts of the visual field are often misplaced or grossly over-or under-represented. It is suggested that this disorderliness may in some cases represent adaptations to facilitate certain types of...

Representation of similarity in 3D object discrimination

1994

Abstract How does the brain represent visual objects? In simple perceptual generalization tasks, the human visual system performs as if it represents the stimuli in a low-dimensional metric psychological space 1]. In theories of 3D shape recognition, the role of feature-space representations (as opposed to structural 2] or pictorial 3] descriptions) has been for a long time a major point of contention.

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