对一种基于图像几何重心的特征点提取算法进行了改进。
%&'()*+!,"-."++!."-/"01((2.#/*.&"3 !""# $% ! /*
-./*+#$%&,()
!"#'$%&''$()*!+%,-'
789:;<=>2?$@-.A@B2<CD2E?$9F-G9D2E<H1D!$@-.AFD2E<I:B2'
' &'k(wb)(*@+,&'J'/444
! vz-.(*$4!/@,'J'44!%
'K82LH>H;HBDM0DNO;HBP+Q>B2QB@R12012,2>SBPL>H3@R12012@+:112T>J'/444@0:>21!K$4!U>S>L>D2DMH:B+BQD2C-PH>==BP3V2E>2BBP>2E0D==BEB@W>012J?""!%@0:>21
$%&'()*+,0-./0-1,)23,40&5.6&3,4)7830178*#.298,:121;7<8:7+,48*43<+7'=>3<1241>187(<1?3+,7@#A3=?(71<B,4+,11<+,48,2.??*+:87+3,@0"CCD0EF1"23GH)GF#
.I@7<8:7 X:>LO1OBPNDC>M>BL1Y>2CDMMB1H;PBBTHP1QH>2E1=EDP>H:NZ1LBCD2>N1EBBCEBK[>PLH@>N1EBBCEBD;H=>2B>LBTHP1QHBCK+BQD2C@EBDNBHP>QEP1S>H3QB2HBPDMBCEBD;H=>2B>LQ1=Q;=1HBCKX:>PC@1PE;NB2H\OD=1PP1C>;LQ;PSBDMOD=1PQDDPC>21HBL3LHBN]:DLBOD=B>LEBDNBHP>QEP1S>H3>LMDPNBC@12CN1T>N;N12CN>2>N;NS1=;BOD>2HL1PBLB1PQ:BC^-H=1LH@MB1H;PBOD>2HL1PBDZH1>2BCZ3LB=BQH>2EN1T>N;NýN>2>N;NþS1=;BOD>2HL1QQDPC>2EHD=DQ1=2D2\N1T>N;NýN>2>N;NþCBOPBLL>D2OP>2Q>O=BKX:BPBL;=H>2C>Q1HBLH:1HH:B1=EDP>H:N>LL>NO=B12C>HLLH1Z>=>H3>LEDDCK8H>L>NODPH12HMDPDZ_BQHPBQDE2>H>D212CH:PBB\C>NB2L>D2PBQD2LHP;QH>D2KJ1KL3<2@ MB1H;PBOD>2HL EBDNBHP>QEP1S>H3QB2HBP OD=1PP1C>;L 1PE;NB2H12E=B
453!"#$%&'()*+,-./0123456748749,23:;01<=>?@ABCD,-.E8F$GHIJKLM01&',>?NO@KP2QR>?@STQR>?@,()*+UVW;*+XYEKZ>?EY[\]K^_`a\Ybc@Kdec@AfghiYjYklEUmWnohiTYjpkqrstuZYjvkwlE451xyz-.E8{|}~ 23P2 8 301,-.E \ ^ KZ \ ; * * ¡l¢
6783-.E£*+£Yb£`aM6%3'4K*JJ`a_K>LL2K?55!\`**?K!55#K5!K5?J
9:;<3 = #>5!\55/*\5*
9?@AB3
CDEF<3Xb*5?K/
!!"
!"#$%&'()*#$%&+!,-./*0123456789:;<%&=>+?@1AB23CDEF'GHIEFJK@LMNOEPQRSTUVW+!"XYZV[\@]^_<?`abcd6eTfghijkl@m(nop'67bq
&'(!)
""#!
#$%&'()*+#$&,
»¼"%&Ì(Í+_<@ÎÏÐ ÑÒ+ÓUÔÕT
+,+-.bc&/)"8Ö À×+ `abqTI01223bcØÙ@+,+-.bq Ú@ÛÀy~+bq×p@ÜÝ}Þgßhwb@àáâ:ãäT
+,+-.bqåæ¦çèÃéêën%&ìÜíeîïð>+ñêTåçè\òón%&+ô8õöó£@wb÷è\ò?!4I÷èÓøÎ&ù?!ÛÀØúût+?+õü"ý!5þ1|Êÿ&ù"!"%& ?T"ý!"þ" #wb
"ý!"þ6 #ý!@!5þ
!
r(nstut'67b5
&*($)
Tv8lb5wb
xyk@vzlb5{|>}~T &%)6e 8 (n ?+_<?67bqT bq @ CDT U1 v8@ " + @ } C vz@¡¢+_<? " £opk+¤?@ ¥nEF+¦§+¨©"ª«}¬+T®¥£© @6e ¯°+ q@¯°±+bq²167³´lµ £¶¤·+_<?T ¸:{|¹ºEF+¦§»¼@¥EF+JK½NOQR+¾MS¿À¾g+ÁÂTÃÄÅÆQÇbqwb È{|>~ÈÉÊ>ËT
ý'þ
#\@#ý!@!5þQ$÷èÓ?!+ûtý$!þI÷è\ò?!5+ûtý$!5þØ%[tT
GHIJ31234(56ET
KLMN3789@:@;<@fgYZü=%&>?I@ABC D E@F@GHI@fgYZ%&ü=>? JKL@F@;<MN@YZOP ü
QRISJR DTU@:@V<@fgYZü=%&>?T
OPQR3!55J\?!\??
STQR3!55`\5!\!?
对一种基于图像几何重心的特征点提取算法进行了改进。
!""# $% ! !"#$%&'()*+,*''(,*+-*./$$0,1-&,"*2
()3!
($45%("$)!
1!("("
"#&'
!!$
&'"&()*+,-./0"123*+4567&8"1%("("#&*.
9:;"<=>?@ABCDEFG"HIDJKLMNNOPQRASTU6VWXDEF.YZ[\]^JK_;D`a3"<bcde3fDJKLMWghi.Wg[jYkl+DmnopqDWro.
%*$3Dl+-ms.tuv+Dw6xyz+{LM|Dl+Dmno.JK3%6*"7*$x%6!"7!$Dv+}+xyz~T ( %+#x %$#.
#)8*)()8!)#$8"%+##) *)() !)#$ "
%$#
&'"8"x "T Yv+}+,-xyz +,-.
%!#pqDWro.LM3%6!"7!#t xLM3%6*"7*#Wg bc 3%6!"7!#P3%6*"7*#D .
8 %*#x%!#"j cdJKe_Wghi.
!"#$%&'
P | 3 D" <3 0 ¡¢"0 £ < Dx.¤LDLM3¥<l+¦o"§¨©]^D`a3PJKª«_;"JK¤L ¬-®¤L"¯¤LDl+°±"²³"t ´YJK¤L µ¶·¸" JKª«_D ¹ ' .
º]^DJK_ »¼½¾¿"JKª«_t T2wÀk¼½ª«xÁ¼½ª«"G®T ¢ÃÄD .
%*$¼½ª«_D ¢
7 ż½DÆÇj®¤È"ÉJK3DÊËY%6,"7,$"*$,$*"*YJK3DÅÌ"& ' ÊË%6""7"$¢ÍGk
*
*
6"&*
%6*,"7"&7
%%$
,&*
%,&*
,
ÎÏ ^D ¥<Ð o.:ÑÒÓÔ¤*%,$ ).%!$Á¼½ª«_D ¢
Õ7®;ÆÖ_D+Å3 _o°±D"× ÈD ÊË Ð ØÙD.²³" 7 VÚAÛDÜ_"t ÝÞÕJK_D2ß3à'|3áUD× È"0 & .ÍÓ JK_Æ âÚAâÛ"j &ãäTV.:ÑÒÓÔ¤*%-# )" Ü_/!
9º:3ãäTV"åT æ/!
:x:!
!D .
3*
45()678%!"#$3
()*%+,-.
YZyç¢JK3;è3pq Dé+àêë"
cdJK3ìÊËí. Yì3"ͤ! )"îïð Ô %.#.
'
))) &#),&%6,46"#/%7,47"()%.#
))) 7,47"
,&,012,3
*
,"
"
ìÊËí DJK3ÈUZìñ(} DÜ_"ͤ+ ).&'"òÊËYJK3} "âê^æ+óôÊËYJK3
Dìñ.
/0*%12
ìÊËíõö÷HIøí"yçPùúûüì-3"0
åã ý\Ø`a3.G®T þÿì-3x`a3D!^"#.
%*#ì-3D\Ø
$} %|4 *" !# Dìw-3u;5,6()"j;5,6t uG &'
;5,6& 5,6+4 % #
%8#
*" !7
("$} %|4 *" !# Dì6-3u;593()"j;593
t uG &';593& 5,6+4 " % #
*!7
%:#
¤+ )Dìñ(} Ü_;Dùúìw-3xì6-3DÜ_T Ô¤$x¤% )"¤)'"%||)^*" "** .
%
!#`a3D\Ø+,D`a3 -ùú% Áìw%6#-./D0j1^D.²³"2 %|Dìw%6#-3xm %| Dìw6#-3ãä34"$5ìw%6#-3Dìñw%6#7m 2Å%|ìw%6#-3Dìñ"j´Y `a3.¤$x¤%Dìw-xì6-Ü_ã ý]^D2 `a3Dìñ(} Ü_¤Ô¤. )"+ ]^D`a3Ô¤8 ).
%
对一种基于图像几何重心的特征点提取算法进行了改进。
!"#$%&'$()*+,-./0123456789!""# $% ! &%
+,-.
mn"opq1rshi]>fgdetuvwxy/-..z,{|}~e = k 1 >]
-.! = k fg -./ = "fg= >hi]/
.% 1 1J -'/% d '
) 1_ "> ] ¡1 ¢)* d £ !% 1¤'
'!% ¥ ¦ 1§ ¦ >[¨7 £©ª«1§¬k p®1¯l°±Z®> ) 1_ ] ¡
/% ) ²³]1 ]k ³´ µ '
'$% ³¶+³·>¦ "g³I'K%|]
'%%J ¸¹£³I'K%|º»¼§½ £³I'K%|]1¾¿>]À hi]7
-.$ = {±ZÁ )*Âu'.% '%% -.%ÃÄ7
'A%defg>hi]
&Q
'@%jkldefg>hi]'()*
ëìíî1QÛLHï¦é>hi]fgðe4ñò1 dóK7Ù Þ >ôÆõö÷ øùúèû>)üMýþÿ)!
>B|7" 1#de¥$,L %>= 1&' ( de)*1+! = k >},7
!"#$%
2.3S?M:O1:M8DTSGUDEM?6?E?BE85D5V65C8DADEN58DE75D68>8EA9
BW0X?72P3<YZZZS0AD7[AEE?0D=DA95DFABM8D?YDE?998>?DB?1.#Q#1..'Q%/Q%#+QR!<
2!3[?8\:1O50D>PO<:50D?0N58DE6?E?BE85DW78D>D?7EC5X8D>AX
?0A>?2P3<[AEE?0DT?B5>D8E85D1.##$1!R'..%/.%//+.%/R<
2/3OA0087:1\E?NM?D7F<=B5C@8D?6B50D?0AD6?6>?6?E?BE502:3]]
FAEEM?I7FF<[05B??68D>75VEM?^5W0EM=9X?_`8785D:5DV?0?DB?<FADBM?7E?0/EM?aD8X?078E_5V\M?VV8?96[08DE8D>aD8E1.#QQ/.$R+.%.<2$3\C8EM\F1b0A6_PF<\a\=H+AD?IANN05ABME595I9?X?98CA>?
N05B?778D>2P3<YDE?0DAE85DA9P5W0DA95V:5CNWE?0`8785D1.##R1!/'.%/$%+RQ<
2%3-./10121345<67Þ ôÆ{ÛL ]89hi]>
de2P3< d:;Q+,1!,,!1/Q'!!%/.,$+.,%<
'{?%1= pq2F3<!@<aA/BCïDD@2&3<=><= :;
E1!,,%<
'()*
Å=Q'A% '@%pƲ¼de rsjkl>defg>ÇÈÃÉ7ÊÃÉ"Ë ÌÍ1jkl>deÎÏÐL¼de7¥ÑfgÒ©Ó>hi]1«Ó>hi]ÔÕÖ×Ø7 ÙÚhi]1Ûr"ÕÜÝÞ > ßà7
)/
= áâãä{1hi]>fgdeZå æçEF>)]7rs ÛL= hi]de>jk7ÇÈÃÉèÎ1jkl>de¥ÑÕÖ×Ø= "¦éI>]1ê
!"#&!$%
'& !(!%) ' &*& '& !+'(( ' ('&,& '& !(!(( ' ('&'& '& !(!(- ' +!&.& .& !(/(
)*+,"-./
' &,& .& !%( ' (.&,& .& !(.%( ' (.&.& .& !(.%- ' (!&.& .& !(!%) ' &,& .&!%( ' (.&,& .&.%( ' (.&.& .&.%- ' (!&.& .&,%) ' &,& .&.%( ' (.&,& .&,%( ' (.&.& .&,%) ' &,& .%0 ' 1,& .& !%( ' (.&,& .& !(.%) ' (.&.& .& !(.%( ' !&.& .& !(!%- ' &,& .%) ' (!&!& .& !(!%( ' (/&!& .& !(/%- ' &,& .%- ' (.&.& .%) ' (/&/& .& !(/%( ' ($&/& .& !($%-
' (' (.%&,& .& !(' (.%%( ' &,& .& !( %)
' & (' (.%& %
) (.
.
'0%'0-'%
' &,& '& !( %) ' & ( & '%
)
3-''%&'!%&2&'0-'%456/ ' 1,1 '1 !%) '
),
)
1 ( 1 '17
!"#$%
2.3456789:;<=9>?@0A8BB5C@8DAE508B72F3GH?IJ50KL5D65D/:MANCAD
AD6OA991.##/G
2!389:G;<=>?@AB<2P3GCDEF&!"""&!G!.Q+!!!G2/389:G?@HIJKL!>=>?@MB<2P3GNOPDQCD&
' &,& .%- ' (.&.& .%- ' (!&!& .%)2) ' & & .%
),
' &,& .& !%( ' (.&,& .& !(.%) ' & & .%
),
'.%
!""/&/G//R+/$!G
2$3RST1UVWGXL;<=>?@YZ[2P3G+,CD1.#Q#1!/
!%+/!G
2%389\G]^_=>?@MB=<2P3G`abIDc1!""&1/Q'$%G
/&+$"G
' (.&,& .& !(.%( ' (!&,& .& !(!%) ' & (.& .%'!%
).
2