SIGNALS FEATURES EXTRACTION
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Transcript of SIGNALS FEATURES EXTRACTION
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SIGNALS FEATURES EXTRACTIONSIGNALS FEATURES EXTRACTION
1. AMPLITUDE FEATURES
2. SIGNALS FIRST-ORDER AMPLITUDE HISTOGRAMFEATURES
3. SIGNALS SECOND-ORDER AMPLITUDEHISTOGRAM FEATURES
4. FOURIER TRANSFORM FEATURES
5. FOURIER DESCRIPTORS
6. SIGNALS MOMENTS FEATURES
7. TEXTURE FEATURES
8. TOPOLOGICAL ATTRIBUTES
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AMPLITUDE FEATURES
Average signal amplitude in a pixel neighborhood
where W = 2w + 1.
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AMPLITUDE FEATURES
Th !"#h$%&h%%' ()*!'*&' '+"*)"%!
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SIGNALS AMPLITUDE HISTOGRAM
FEATURES
The first-order probability distribution
where rb denotes the signals level
for 0
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SIGNALS FIRST-ORDER
HISTOGRAM FEATURES
where M is the total nuber of pi!els in aneighborhood window "entered in aroundof #$%&'( )#b' is the nuber of pi!els of
aplitude rb in the sae window
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SIGNALS FIRST-ORDER
HISTOGRAM FEATURES
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SIGNALS FIRST-ORDER
HISTOGRAM FEATURES
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SIGNALS FIRST-ORDER
HISTOGRAM FEATURES
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SIGNALS SECOND-ORDER
HISTOGRAM FEATURES
Th ,%"!) '"()&"$)"%! % "/*# */0")' +*(
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SIGNALS SECOND-ORDER
HISTOGRAM FEATURES
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SIGNALS SECOND-ORDER
HISTOGRAM FEATURES
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SIGNALS SECOND-ORDER
HISTOGRAM FEATURES
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SIGNALS SECOND-ORDER
HISTOGRAM FEATURES
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FOURIER TRANSFORM
FEATURES
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FOURIER TRANSFORM FEATURES
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FOURIER TRANSFORM FEATURES
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FOURIER TRANSFORM FEATURES
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FOURIER TRANSFORM FEATURES
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FOURIER TRANSFORM
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FOURIER TRANSFORM
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FOURIER TRANSFORM
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FOURIER DESCRIPTORS
Th %/0 !)"%! /* $ 0&((' "! )&/( % ")( &*
*!' "/*#"!*& 0*&)( *(
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Geometry for curvature
definition
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GEOMETRICALGEOMETRICAL
SIGNALS MOMENTS FEATURESSIGNALS MOMENTS FEATURES
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NORMALIED UNDER DISPLACEMENTNORMALIED UNDER DISPLACEMENT
AND SCALE SMFAND SCALE SMF
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NORMALIED UNDERNORMALIED UNDER
ANGULAR ORIENTATION SMFANGULAR ORIENTATION SMF
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NORMALIED GEOMETRICAL SMFNORMALIED GEOMETRICAL SMF
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THE ALUES OF PARAMETERS
DISTORTION
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TEXTURES
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INDICATRS F DIFFERENCES
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TEXTURE MEASURE
OF EDGED SIGNAL
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AUTOCORRELATION SPREAD
MEASURES
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AUTOCORRELATION FUNCTIONS OF
TEXTURE FIELDS
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TPLGICAL ATTRI!UTES
Th circularity % *! %$,)
& A& AOO"( *&* P"( *&* POO"( 0&"/)&"( 0&"/)&
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TPLGICAL ATTRI!UTES
Th *+&*# *&* *!' 0&"/)& % %!!)' %/0%!!)(
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E "( )h E& !/$&
E 9 C : H
C- )h !/$& % %!!)' %/0%!!)(
H - )h !/$& % h%(
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TPLGICAL ATTRI!UTES
Th *+&*# %$,) !#)h *!' "')h