کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
411210 | 679184 | 2007 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Criticality of lateral inhibition for edge enhancement in neural systems
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
هوش مصنوعی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Criticality of lateral inhibition for edge enhancement in neural systems Criticality of lateral inhibition for edge enhancement in neural systems](/preview/png/411210.png)
چکیده انگلیسی
Although the role of lateral inhibition in edge (contrast) enhancement is well known, it has not been parametrized. This paper investigates the imbalance between the lateral inhibitory and excitatory stimuli and its effect on the edge enhancement and stability. It is shown that this imbalance can be expressed through γγ, a ratio of inhibitory to excitatory weights in a neuron. Stability requires γγ to be less than the critical ratio ΘΘ. As γγ approaches ΘΘ, edge enhancement increases, the rise being the sharpest just before instability. The increase in edge enhancement is also accompanied by an increase in the lateral spread of perturbations across the neuron layer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neurocomputing - Volume 70, Issues 4–6, January 2007, Pages 991–999
Journal: Neurocomputing - Volume 70, Issues 4–6, January 2007, Pages 991–999
نویسندگان
Pradeep Arkachar, Meghanad D. Wagh,