نتایج جستجو برای: feature vector

تعداد نتایج: 408797  

ژورنال: محاسبات نرم 2016

In vehicle surveillance systems, one of the appropriate methods for recognition are 3-D models. Several methods have been proposed for this purpose. Feature based methods are most significant and widely used. In this paper, is proposed an algorithm within recognition framework. Proposed algorithm is considered information of image and model edges as feature. A block descriptor has been used ext...

Journal: :journal of biomedical physics and engineering 0
m ghofrani jahromi h parsaei a zamani m dehbozorgi

background: electromyographic (emg) signal decomposition is the process by which an emg signal is decomposed into its constituent motor unit potential trains (mupts). a major step in emg decomposition is feature extraction in which each detected motor unit potential (mup) is represented by a feature vector. as with any other pattern recognition system, feature extraction has a significant impac...

Classical LBP such as complexity and high dimensions of feature vectors that make it necessary to apply dimension reduction processes. In this paper, we introduce an improved LBP algorithm to solve these problems that utilizes Fast PCA algorithm for reduction of vector dimensions of extracted features. In other words, proffer method (Fast PCA+LBP) is an improved LBP algorithm that is extracted ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده فنی و مهندسی 1389

برای مقاوم سازی سیستم بازشناسی گفتار در برابر عوامل مزاحم محیطی (نویز جمع شونده، اثر اعوجاج کانال انتقال و نویزهای گذرا) سه ایده کلی وجود دارد: 1- استخراج وی‍ژگی های مقاوم(robust feature extraction) 2- بهبود کیفیت بردارهای بازنمایی (feature enhancement) 3- اصلاح مدل بازشناسی صوتی (acoustic model compensation) در ایده اول سعی می شود تا از ویژگی ها و پارمترهایی از سیگنال گفتار برای ساخت بر...

P Katibeh, S Kazemi

Background: Migraine headache without aura is the most common type of migraine especially among pediatric patients. It has always been a great challenge of migraine diagnosis using quantitative electroencephalography measurements through feature classification. It has been proven that different feature extraction and classification methods vary in terms of performance regarding detection and di...

2015
Feng Zhihong Miao Changyun Bai Hua

Support Vector Machine is a very good solution to the classification problem of small sample, but when the input feature vector dimension is larger, the classifier has complex structure, long training time and degraded performance. In order to solve this problem, a feature extraction method based on wavelet coefficients cluster was put forward. All the wavelet coefficients was clustered, the en...

Journal: :Indian Journal of Science and Technology 2015

Journal: :Computer Animation and Virtual Worlds 2011

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