feature extraction and classification
Báo cáo " Isolated Handwritten Vietnamese Character Recognition with Feature Extraction and Classifier Combination " docx
Ngày tải lên :
14/03/2014, 13:20
... Vietnamese handwritten recognition [9, 23] on both aspects of feature extraction and classifier combination Feature extraction 4.1 Gradient feature extraction The method of gradient feature extraction ... three kinds of feature extraction: gradient, structural feature, and concavity extraction, each of which corresponds to a feature set Note that we also integrate all these three feature sets for ... GSC feature vector consists of 512 features Note that in this paper, we will investigate each of the three feature sets as well as the GSC feature set separately Fig Feature of concavity and...
- 17
- 345
- 0
nixon, m. s. (2002) feature extraction and image processing
Ngày tải lên :
18/04/2014, 12:28
... our parents To Gloria and to Joaquin Aguado, and to Brenda and the late Ian Nixon Feature Extraction and Image Processing Mark S Nixon Alberto S Aguado Newnes OXFORD AUCKLAND BOSTON JOHANNESBURG ... eye that it would be difficult to include, and would often be unwanted, in a computer vision system: Mach Feature Extraction and Image Processing bands and sensitivity to unsensed phenomena These ... they contain enough information to perform feature extraction and image analysis Should the image be originally colour, we will 32 Feature Extraction and Image Processing (a) Original image (b)...
- 360
- 769
- 0
Báo cáo hóa học: " Research Article A Minimax Mutual Information Scheme for Supervised Feature Extraction and Its Application to EEG-Based Brain-Computer Interfacing" pot
Ngày tải lên :
21/06/2014, 22:20
... F Oveisi and A Erfanian Original feature creation EEG Ch-n Feature extraction Original feature creation EEG Ch-2 Feature extraction Original feature creation EEG Ch-1 Feature extraction ... purpose of feature extraction, namely minimax feature extraction, as follows: J = I yi ; c − β I yi ; ys ; yi = wT xi , (8) ys ∈S where yi and ys are the new and already extracted features, respectively ... number of already extracted features The proposed feature extraction method is an iterative process which begins with an empty feature set and additional features are created and included one by one...
- 8
- 424
- 0
approaches to visual feature extraction and fire detection based on digital images
Ngày tải lên :
20/01/2015, 21:12
... popular approaches to the classification of the multidimensional feature vectors obtained from each candidate flame region are Bayes classification and SVM classification Other classification methods ... components: the analysis of visual features and the classification techniques The visual features include color, temporal changes, spatial variance, texture and flickering The classification techniques ... using fire-color process for pixel classification, temporal change detection, and recover lack pixel; textural features of potential fire region extraction; and SVM classification for distinguishing...
- 27
- 336
- 0
Báo cáo toán học: " DWT and LPC based feature extraction methods for isolated word recognition" pptx
Ngày tải lên :
20/06/2014, 20:20
... coefficients and its temporal derivatives (first and second derivatives) were extracted and concatenated to form a final LPCC feature vector (this gives feature dimension 39) In MFCC feature extraction ... and MFCC feature vectors (7 LPC/MFCC coefficients and their first and second derivatives) The performances of LPCC, MFCC, and WLPC (UWLPC/ DWLPC) features have been tested on TI-20 database and ... decomposed LPC (UWLPC) feature extraction from subbands of uniform bandwidth The subbands are obtained by two-level wavelet packet decomposition [21] Then, the UWLPC feature vector is formed...
- 31
- 580
- 1
Báo cáo hóa học: "Research Article A Joint Time-Frequency and Matrix Decomposition Feature Extraction Methodology for Pathological Voice Classification" doc
Ngày tải lên :
21/06/2014, 19:20
... purpose, and quantification and parametrization of TFD for feature extraction and automatic classification have not been explicitly studied so far In this paper, we explore TF feature extraction ... where ftLF and ftHF are the input feature vectors, and THF and TLF are the total numbers of test feature vectors for HF and LF components, respectively Next, the number of all the features that ... interpretable features, and they are not suitable for feature extraction Therefore, in this paper, we use NMF for TF matrix decomposition NMF algorithm starts with an initial estimate for W and H and performs...
- 11
- 223
- 0
Báo cáo hóa học: " Research Article Telescopic Vector Composition and Polar Accumulated Motion Residuals for Feature Extraction in Arabic Sign Language Recognition" pdf
Ngày tải lên :
22/06/2014, 19:20
... Table FEATURE EXTRACTION SCHEMES Two solutions for feature extraction schemes are proposed: motion estimation and motion residuals Both solutions are discussed with respect to two different extraction ... found in [10] and references within Feature extraction follows the estimation of motion vectors using one of the following approaches: time-dependent and time-independent feature extraction schemes ... train and classify such time-dependent feature vectors (b) Time-independent feature extraction On the other hand, the motion vectors of a gesture video can be accumulated into one image prior to feature...
- 10
- 314
- 0
Báo cáo hóa học: " Image Analysis of Soil Micromorphology: Feature Extraction, Segmentation, and Quality Inference Petros Maragos" doc
Ngày tải lên :
23/06/2014, 01:20
... (an)isotropy, and complexity, (5) contrast: degree to which the feature being described is clearly differentiable from other features, and (6) sharpness: transition between the particular feature and other ... derived image features shown in Table CLASSIFICATION AND AUTOMATED CORRESPONDENCE Finally, the segmentation results (homogeneous areas), the postsegmentation features (shape and texture) and the granulometric ... “IF feature (1) and and feature (n) THEN category (i).” Each rule consists of an antecedent (its IF part) and a consequence (its THEN part), it is given in symbolic form by the experts and...
- 11
- 290
- 0
Spatio temporal approaches to denoising and feature extraction in rapid image triage
Ngày tải lên :
09/09/2015, 17:57
... specific approaches for character extraction (Kurniawan and Mohamad, 2009; Khan and Mohammad, 2008) and character recognition (Rakshit and Basu, 2010; Adankon and Cheriet, 2009; Natarajan et al., ... depends on extraction and comparison of individually unique biometric (Jain et al., 1999), such as the characteristics of ridges (Jain et al., 2007; Ji and Yi, 2008) and minutia points (Jea and Govindaraju, ... procedure) and a black box (brain signal decoding) The task procedure includes the preparation and presentation of images, while brain signal decoding consists of denoising, feature extraction and classification...
- 199
- 291
- 0
Khai thác dữ liệu chuỗi thời gian dựa vào rút trích đặc trưng bằng phương pháp điểm giữa và kỹ thuật xén = time series data mining based on feature extraction with middle points and clipping method
Ngày tải lên :
26/02/2016, 20:11
... chứng minh rằng: D(Q, O) ≤ Dfeature (Q’, O’) ≤ Điều hiển nhiên Dfeature (Q’, O’) ≤ D(Q, O) ≤ Do bắt buộc phải có: Dfeature (Q’, O’) ≤ D(Q, O) □ Ngoài ra, Dfeature (Q’, O’) gần với D(Q, ... time series data, several dimensionality reduction methods, which is based on feature extraction, have been proposed and used However, a number of these methods did not provide any formal proof ... R*-tree combined with the idea of early abandoning in Euclidean distance computation and (2) the algorithm using MP_C associated with Skyline index; and between the two algorithms, the latter...
- 168
- 646
- 4
Harvesting, oil extraction, and conversion of local filamentous algae growing in wastewater into biodiesel
Ngày tải lên :
05/09/2013, 15:28
... Healthcare, Bucks, England, UK) between the wavelengths of 400 and 700 nm in increments of 10 nm The peak absorption of light in the red portion of the spectrum was between 650 and 680 nm, and light at ... the algal pulp and needed pressing and filtration for recovery, as already described The extraction required over 100 hours to release most of the chlorophyll Subsequent successive extractions with ... viable lipid extraction method for obtaining oil from algal cells and analyzing its quality, (iii) increasing the quantity of algal oil to generate a reasonable amount of biodiesel fuel, and (iv)...
- 6
- 488
- 0
Feature Extraction
Ngày tải lên :
12/09/2013, 00:09
... Engineering Feature Extraction -2- Digital Image Processing Department of Biomedical Engineering Feature Extraction -3- Digital Image Processing Department of Biomedical Engineering Feature Extraction ... Engineering Feature Extraction -5- Digital Image Processing Department of Biomedical Engineering Feature Extraction -6- Digital Image Processing Department of Biomedical Engineering Feature Extraction ... Engineering Feature Extraction -8- Digital Image Processing Department of Biomedical Engineering Feature Extraction -9- Digital Image Processing Department of Biomedical Engineering Feature Extraction...
- 29
- 262
- 0
13-signal-detection-and-classification-13803335538269
Ngày tải lên :
05/11/2013, 17:20
... undertaken by radar and radio engineers in the early 1950s [3, 4] This chapter provides a brief and limited overview of some of the theory and practice of signal detection and classification The ... false alarm and miss are functions of γ given by PF A = P (RK |H ) and PM = 1−P (RK |K) where P (A|H ) and P (A|K) denote the probabilities of arbitrary event A under hypothesis H and hypothesis ... where the zi ’s are independent univariate complex Gaussian random variables with zero mean and unit variance and where ρ is scalar and d is a (row) vector of positive scalars The complex noncentral...
- 15
- 292
- 0
13-signal-detection-and-classification-13804470939958
Ngày tải lên :
05/11/2013, 17:20
... undertaken by radar and radio engineers in the early 1950s [3, 4] This chapter provides a brief and limited overview of some of the theory and practice of signal detection and classification The ... false alarm and miss are functions of γ given by PF A = P (RK |H ) and PM = 1−P (RK |K) where P (A|H ) and P (A|K) denote the probabilities of arbitrary event A under hypothesis H and hypothesis ... where the zi ’s are independent univariate complex Gaussian random variables with zero mean and unit variance and where ρ is scalar and d is a (row) vector of positive scalars The complex noncentral...
- 15
- 240
- 0
13 Signal Detection and Classification
Ngày tải lên :
08/11/2013, 12:15
... undertaken by radar and radio engineers in the early 1950s [3, 4] This chapter provides a brief and limited overview of some of the theory and practice of signal detection and classification The ... false alarm and miss are functions of γ given by PF A = P (RK |H ) and PM = 1−P (RK |K) where P (A|H ) and P (A|K) denote the probabilities of arbitrary event A under hypothesis H and hypothesis ... where the zi ’s are independent univariate complex Gaussian random variables with zero mean and unit variance and where ρ is scalar and d is a (row) vector of positive scalars The complex noncentral...
- 15
- 451
- 0
Tài liệu Changing Feature Licenses and System pptx
Ngày tải lên :
11/12/2013, 13:15
... client and connect to ftp.cisco.com Use your CCO username and password Step Enter the command cd /cisco/web/tftp and use the ls command to view the directory contents Step Use the get command to ... address, server, and file commands, and then enter the tftp command to start the download The commands are as follows: a If needed, use a question mark (?) or enter the help command to list the ... and connect to ftp.cisco.com Use your CCO username and password Step You can view the files in the main directory by entering the ls command Step Enter the cd /cisco/ciscosecure/pix command and...
- 16
- 518
- 0
Tài liệu Diagnostic Standards and Classification of Tuberculosis in Adults and Children doc
Ngày tải lên :
15/02/2014, 12:20
... droplet nuclei and molded to fit tightly around the nose and mouth Measures such as disposing of such personal items as clothes and bedding, sterilizing fomites, using caps and gowns and gauze or ... neoplastic diseases, and drug abuse, to name but a few The signs and symptoms of these diseases and their complications can easily obscure or modify those of tuberculosis and result in considerable ... predominate and systemic symptoms are less common (59, 60) Dysuria, hematuria, and frequent urination are common, and flank pain may also be noted However, the symptoms may be subtle, and, often,...
- 20
- 635
- 1
Tài liệu Báo cáo khoa học: "Extraction and Approximation of Numerical Attributes from the Web" pdf
Ngày tải lên :
20/02/2014, 04:20
... any pre-specified (e.g., (Riloff and Jones, 1999; Chklovski and Pantel, 2004)) and unspecified (e.g., (Banko et al., 2007; Rosenfeld and Feldman, 2007; Davidov and Rappoport, 2008b)) relation types ... extraction of attributes from resources such as Wikipedia and top Google snippets In order to test this, we randomly selected 100 object-attribute pairs from our Web QA and WordNet datasets and ... 1.695m and reject other values Thus we can increase the precision of value extraction by finding and analyzing an entire group of comparable objects Second, while it is usually meaningless and impossible...
- 10
- 465
- 0
Tài liệu Báo cáo khoa học: "A Mobile Touchable Application for Online Topic Graph Extraction and Exploration of Web Content" ppt
Ngày tải lên :
20/02/2014, 05:20
... on such a node expands it, as shown in Fig A single touch on a node that cannot be expanded adds its label to the initial user query and triggers a new search with that expanded query Figure ... one of the extended noun tags2 , and elements of a verb Topic Graph Extraction We consider the extraction of a topic graph as a specific empirical collocation extraction task However, instead ... questions like EEUU and NLF, questions about persons like Justin Bieber, David Beckham, Pete Best, Clark Kent, and Wendy Carlos , and general themes like Brisbane, Balancity, and Adidas The task...
- 6
- 458
- 0