Statistical feature extraction method for wood species recognition system

2017 ◽  
Vol 76 (1) ◽  
pp. 345-356 ◽  
Author(s):  
Imanurfatiehah Ibrahim ◽  
Anis Salwa Mohd Khairuddin ◽  
Hamzah Arof ◽  
Rubiyah Yusof ◽  
Effariza Hanafi

2012 ◽  
Vol 39 (5) ◽  
pp. 5470-5477 ◽  
Author(s):  
Bilal Bataineh ◽  
Siti Norul Huda Sheikh Abdullah ◽  
Khairuddin Omar


Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Jiang Lin ◽  
Yi Yumei ◽  
Zhang Maosheng ◽  
Chen Defeng ◽  
Wang Chao ◽  
...  

In speaker recognition systems, feature extraction is a challenging task under environment noise conditions. To improve the robustness of the feature, we proposed a multiscale chaotic feature for speaker recognition. We use a multiresolution analysis technique to capture more finer information on different speakers in the frequency domain. Then, we extracted the speech chaotic characteristics based on the nonlinear dynamic model, which helps to improve the discrimination of features. Finally, we use a GMM-UBM model to develop a speaker recognition system. Our experimental results verified its good performance. Under clean speech and noise speech conditions, the ERR value of our method is reduced by 13.94% and 26.5% compared with the state-of-the-art method, respectively.





2021 ◽  
Vol 93 ◽  
pp. 107172
Author(s):  
Husam Ali Abdulmohsin ◽  
Hala Bahjat Abdul wahab ◽  
Abdul Mohssen Jaber Abdul hossen


2010 ◽  
Vol 139-141 ◽  
pp. 2051-2054 ◽  
Author(s):  
Xue Song Chen ◽  
Cheng Wang ◽  
Xue Jun Xu ◽  
Hong Bo Zhu ◽  
Shao Hua Jiang

A good feature extraction method can improve the performance of pattern recognition system or classification system. Using potential energy theory into binary image feature extraction and feature store is a new method for image processing. The skeleton can be better display the whole features of the object. In target recognition system, using potential energy of skeleton-point projection into the plane coordinate system. The method can be better to show a skeleton in the structural feature. In addition, it can better avoid the matrix storage redundancy. In all energy projection method, potential energy projection is better shown its superiority in the structure information, the time of consumption and the storage space. The skeleton potential energy can be used in target recognition and target classification field and so on.



2019 ◽  
Vol 9 (2) ◽  
pp. 4066-4070 ◽  
Author(s):  
A. Mnassri ◽  
M. Bennasr ◽  
C. Adnane

The development of a real-time automatic speech recognition system (ASR) better adapted to environmental variabilities, such as noisy surroundings, speaker variations and accents has become a high priority. Robustness is required, and it can be performed at the feature extraction stage which avoids the need for other pre-processing steps. In this paper, a new robust feature extraction method for real-time ASR system is presented. A combination of Mel-frequency cepstral coefficients (MFCC) and discrete wavelet transform (DWT) is proposed. This hybrid system can conserve more extracted speech features which tend to be invariant to noise. The main idea is to extract MFCC features by denoising the obtained coefficients in the wavelet domain by using a median filter (MF). The proposed system has been implemented on Raspberry Pi 3 which is a suitable platform for real-time requirements. The experiments showed a high recognition rate (100%) in clean environment and satisfying results (ranging from 80% to 100%) in noisy environments at different signal to noise ratios (SNRs).



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