Contextual modulation via low-level vision processing

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• 作者：Phillip Sheridan^a ; ^{p.sheridan@griffith.edu.au} ; Barry Thornton^b ; ^c
• 关键词：Gabor wavelet ; Contextual modulation ; Primary visual cortex ; Computational model ; Orientation pinwheels
• 刊名：Image and Vision Computing
• 出版年：2012
• 期刊代码：68_02628856
• 类别：et
• 出版时间：May, 2012
• 卷：30
• 期：4-5
• 页码：367-377
• 文件大小：1628 K

摘要

Gabor wavelets are well established as being useful for modeling neuronal response properties of the primary visual cortex. However, current Gabor models do not account for long-range contextual modulation. This paper introduces a new model which extends a state-of-the-art model of contextual modulation by incorporating long-range convolution at the scale of the visual field. The significance of this new mechanism is that it accounts for perceptual filling-in of occluded receptive fields with purely low-level vision processing.