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Title: The role of depth cues on visual object recognition and naming
Author: Salama, F. A. O.
Awarding Body: University College of Swansea
Current Institution: Swansea University
Date of Award: 1995
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In ten experiments, 130 subjects (aged 23035) were shown stereoscopic photographs of three rotated common objects, presented tachistoscopically, for the purpose of examining the effects of stereopsis, angle of view and colour on reaction time for recognition and naming of those objects. The results of these studies show that naming speed is related to viewing condition and angle of view. Angle of view is also related to the speed with which objects are recognized with yes/no paradigm. Furthermore, the results indicate that under these experimental conditions, stereopsis significantly affects naming and recognition but for different reasons. The data provide clues about the interpretation, by the visual system, of shape from stereopsis cues and about the relationship of shape from stereopsis to other depth cues in determining the perception of objects rotated in depth. The results also provide an understanding of how surface details such as colour of object are perceived by the visual system. The results were discussed within the framework of the 2-5-dimensional sketch (Marr 1982), hypothesized as representing the orientations and distances of visible surfaces relative to the viewer.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available