Results 121 to 130 of about 17,389 (226)

detection for steganography based on hilbert huang transform [PDF]

open access: yes, 2011
This paper will introduce the Hilbert-Huang Transform for Analysis of Universal blind steganalysis detection task. Firstly, This method use its efficient unsteady-state modeling ability to constucte features of steganography object and adopt independent ...
Wu Suyan, Shi Yanqin, Li Wenbo
core  

An orthogonal technique for empirical mode decomposition in Hilbert-Huang transform

open access: yesMATEC Web of Conferences, 2015
First, it is indicated that the intrinsic mode functions (IMF) obtained by the empirical mode decomposition (EMD) are not orthogonal. Then an orthogonal technique based on Gram-Schmidt method is proposed to obtain the complete orthogonal intrinsic mode ...
Lou Menglin, Huang Tianli
doaj   +1 more source

Hyperspectral Image Analysis Using Hilbert-Huang Transform [PDF]

open access: yes, 2013
高光譜影像具有豐富且細緻的地物光譜資訊,有助於地物的判釋,並且提升影像分類之精度。然而受限於高光譜影像之高維度資料統計特性,在訓練樣本數不足的情況下,傳統以統計為基礎的影像分類方法並無法直接適用,這樣的問題一般稱為「維度的詛咒」。若在高光譜影像分類前,先透過適當的特徵萃取方法縮減高光譜影像的資料維度,將可有效解決「維度的詛咒」之問題。本研究應用Hilbert-Huang transform(HHT)方法於高光譜影像之光譜曲線分析與特徵萃取,以獲得有利於高光譜影像分類之光譜特徵 ...
Huang, Xiu-Man, 黃琇蔓
core  

Comparison of Different Time-Frequency Analyses Techniques Based on sEMG-Signals in Table Tennis: A Case Study

open access: yesInternational Journal of Computer Science in Sport, 2018
The surface EMG signal in the action of dynamic contraction has more movement interference compared to sustained static contractions. In addition, the recruitment and de-recruitment of motor units causes a faster change in the surface EMG signal’s ...
Lin B., Wong S. F., Baca A.
doaj   +1 more source

Hilbert-Huang transform

open access: yesScholarpedia, 2008
Norden E. Huang   +2 more
openaire   +1 more source

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