دانلود مقاله ISI انگلیسی شماره 65340
ترجمه فارسی عنوان مقاله

تشخیص حرکت و رزونانس تصادفی در محیط های دارای نویز

عنوان انگلیسی
Motion detection and stochastic resonance in noisy environments
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
65340 2001 9 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Microelectronics Journal, Volume 32, Issue 12, December 2001, Pages 959–967

ترجمه کلمات کلیدی
سنسور هوشمند؛ تشخیص حرکت؛ اجتناب از برخورد - دید حشرات؛ رزونانس تصادفی؛ مدل های حسی عصبی نویزدار - نویز
کلمات کلیدی انگلیسی
Smart sensors; Motion detection; Collision avoidance; Insect vision; Stochastic resonance; Noisy sensory neural models; Noise
پیش نمایش مقاله
پیش نمایش مقاله  تشخیص حرکت و رزونانس تصادفی در محیط های دارای نویز

چکیده انگلیسی

Several motion detection schemes are considered and their responses to noisy signals investigated. The schemes include the Reichardt correlation detector, shunting inhibition and the Horridge template model. These schemes are directionally selective and independent of the direction of change in contrast. They function by using spatial information and comparing it at successive time intervals. A rudimentary noise analysis is performed on the Reichardt and inhibition detectors to compare their natural robustness against noise. Using these detectors, stochastic resonance (SR) is applied, which is characterised by an improvement in response when noise is added to the input signal. It is found that the performance of the detectors degrades with the addition of noise. Employing Stocks' suprathreshold SR, an improvement can be gained when considering a network of detectors. Furthermore, when using an incorrect threshold setting for the template model, SR can be displayed.