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Content Provider | IET Digital Library |
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Author | Lin, Chuan Xu, Guili Cao, Yijun |
Abstract | Psychophysical and neurophysiological investigations on the human visual system show that most neurons in the primary visual cortex (V1) possess a non-classical receptive field (nCRF) region in addition to the CRF region. The nCRF has a modulatory, normally inhibitory, effect on the responses to visual stimuli generated within the CRF. In computational terms, this mechanism suppresses the response to edges in the presence of similar edges in the surroundings. Many computational techniques have been proposed to address the surround suppression mechanism. These methods introduce an inhibition term that is required to suppress the textures and protect the contours. Several studies have found that the spatial summation properties over the receptive fields of retinal X cells are approximately linear, while they are non-linear for Y cells. Inspired by the visual information processing in the X–Y channel and spatial summation properties of X and Y cells, the authors propose a contour detector using linear and non-linear modulations based on nCRF suppression. Extensive experimental evaluations demonstrate that their contour detector significantly outperforms other algorithms. The methods proposed in this study are expected to facilitate the development of efficient computational models in the field of machine vision. |
Starting Page | 993 |
Ending Page | 1003 |
Page Count | 11 |
ISSN | 17519659 |
Volume Number | 12 |
e-ISSN | 17519667 |
Issue Number | Issue 6, Jun (2018) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-ipr/12/6 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-ipr.2017.0679 |
Journal | IET Image Processing |
Publisher Date | 2018-01-22 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Computer Vision And Image Processing Technique Contour Detection Model Contour Detector Contour Protection CRF Region Edge Detection Human Visual System Image Recognition Image Texture Inhibition Term Linear Modulation Machine Vision Modulation Neurophysiological Investigations Nonclassical Receptive Field Region NonCRF Suppression Nonlinear Modulation Primary Visual Cortex Psychophysical Investigations Retinal X Cell Spatial Summation Property Suppression Mechanism Texture Suppression Visual Information Processing X-Y Channel |
Content Type | Text |
Resource Type | Article |
Subject | Signal Processing Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software |
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