Pre - attentive segmentation inthe primary visual
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منابع مشابه
Pre-attentive segmentation in the primary visual cortex.
The activities of neurons in primary visual cortex have been shown to be significantly influenced by stimuli outside their classical receptive fields. We propose that these contextual influences serve pre-attentive visual segmentation by causing relatively higher neural responses to important or conspicuous image locations, making them more salient for perceptual pop-out. These locations includ...
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This paper analyzes computational strategies for segmentation, and argues that an initial stage of human visual segmentation, corresponding to pop-out, is a pre-attentive process we call segmentation without classification, i.e., separating an image into regions without classifying and comparing features within and between regions. This process has been proposed to be implemented in the primary...
متن کاملVisual segmentation by contextual influences via intra-cortical interactions in the primary visual cortex.
Stimuli outside classical receptive fields have been shown to exert a significant influence over the activities of neurons in the primary visual cortex. We propose that contextual influences are used for pre-attentive visual segmentation. The difference between contextual influences near and far from region boundaries makes neural activities near region boundaries higher than elsewhere, making ...
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تاریخ انتشار 1998