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Psychology (9,573)
PSYB51H3 (301)
Chapter 4

chapter 4

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University of Toronto Scarborough
Matthias Niemeier

PSYB51 Chapter 4 Perceiving and Recognizing Objects Page1Perceiving and Recognizing Objects Middle Vision Middle midlevel vision A loosely defined stage of visual processing that comes after basic features have been extracted from the image early vision and before object recognition and scene understand highlevel vision Finding Edges Illusory contour A contour that is perceived even though nothing changes from one side of the contour to the other in the imageNo borders are there but there is a perceived shape ROLES THAT MAKE CONTOURS image will appear to group together The Structuralism Gestalt A school of thought believing that complex In German literally form In perception the original list as assembled by members of the objects or perceptions could be understood by name of a school of thought stressing that the Gestalt school of thought analysis of the components perceptual whole could be greater than the Good continuation apparent sum of the parts A Gestalt grouping rule stating that twoelements will tend to group together if they Gestalt grouping rules A set of rules describing which elements in an seem to lie on the same contour PERCEPTUAL COMMITTEESa metaphor used to describe how the brain organizes the different rules and principles to create a perception of the world OCCLUSIONIllusory contour comes from the notion of another contour occluding the vertical line there fore causing an inference to be made Texture Segmentation and Grouping Texture segmentation Carving an image into regions ofcommon texture propertiesClosely related to two strong Gestalt grouping principles similarity and proximity Similarity Parallelism Common region A Gestalt grouping rule stating that the tendency A rule of figureground assignment stating that A G
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