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銆妉earning from Facial Aging Pattern for Automatic Age Estimation銆?br>銆?a class="l" onmousedown="return clk(0,'','','','1','','0CCEQFjAA')">Automatic Age Estimation Based on Facial Aging Patterns銆?br>
絎旇濡備笅錛?br>鍩轟簬騫撮緞鏍煎眬鑷姩騫撮緞浼拌
1錛?鑷姩騫撮緞浼拌闈復(fù)鐨勪富瑕侀毦棰樺氨鏄勾榫勭浉瀵逛簬鍏朵粬闈㈤儴鍥犵礌鐨勭壒孌婃э細(xì)
1. 鑰佸寲鐨勮繃紼嬩笉鍙帶銆傚鑷存牱鏈暟鎹敹闆嗗緢璐瑰姏
2. 鐙壒鐨勫勾榫勬牸灞銆傛瘡涓涓漢鐨勭殑鍩哄洜錛屽仴搴鋒儏鍐碉紝鐢熸椿鏂瑰紡閮戒笉鍚岋紝閫犳垚騫撮緞鏍煎眬涓嶅悓銆?br>3. 騫撮緞鏍煎眬鏄椂闂寸殑鍑芥暟銆傝佸寲鐨勮繃紼嬪繀欏繪寜鐓ф椂闂撮『搴忥紝鏌愭椂鍒葷殑鑴擱儴鐘舵佽兘澶熷獎(jiǎng)鍝嶅埌鍚庨潰鐨勫勾榫勭殑闈㈤儴琛ㄦ儏錛屼絾鏄笉鑳藉獎(jiǎng)鍝嶅埌騫磋交鏃跺埢鐨勩?br>2.璇曢獙涓紝鏁版嵁鐨勯噰闆嗕嬌鐢‵G-NET Aging Database銆傝鏁版嵁搴撶殑鏈変釜緙虹偣灝辨槸緇濆ぇ澶氭暟鍥懼儚鍙槸琛ㄧず寰堝皯鐨勫勾榫勶紝閫犳垚鏁版嵁涓嶅畬鏁淬傛墍浠ュ勾榫勭畻娉曞繀欏昏鑳藉閫傜敤浜庡鐞嗕笉瀹屾暣鏁版嵁銆?br>3.姣忎釜浜虹嫭鏈夌殑鐗瑰緛涔熼渶瑕佽冭檻榪涘幓錛岃繕鏈夛紝姣忎釜鍒嗙駭閮介渶瑕佹帓鍒楁垚嬈″簭錛屽洜涓烘槸鎸夌収鏃墮棿欏哄簭鏉ョ殑銆?br>4.AGES綆楁硶銆傦紙AGing pattErn Subspace錛夊彇浠d紶緇熺殑浣跨敤浣跨敤鐙珛鐨勬瘡涓寮犱漢鑴稿浘鐗囨潵閲囨牱錛屾妸姣忎竴涓勾榫勬牸灞浣滀負(fù)涓涓牱鏈紙榪欐牱鐨勫ソ澶勬槸灝嗕釜浜虹殑鐗瑰緛鍜屽疄璺墊蹇電粨鍚堣搗鏉ワ紝璁╁涔?fàn)鐨勪徽d姟浠巌mage-class緙栫▼浜?jiǎn)浠巌mage搴忓垪-class搴忓垪錛屼粠鑰屽熀浜庝簡(jiǎn)涓嶅畬鏁存暟鎹級(jí)銆備負(fù)浜?jiǎn)瑙e唽櫩欎釜闂锛屼竴涓凱浠e涔?fàn)绠楁硶琚彂鏄庛?br>5.鏈鏃╃殑涓涓勾榫勪及璁$畻娉曟槸Lanitis鎻愬嚭錛屽湪浠栦滑鐨勫伐浣滀腑錛屽勾榫勬牸灞鏄湁涓涓簩嬈″嚱鏁幫紙縐頒綔騫撮緞鍑芥暟錛夋潵鍐沖畾鐨勩?br>Age = f(b);
鍏朵腑b鏄偅涓劯閮ㄥ浘鍍忕殑鐗瑰緛鍚戦噺銆傝岃繖涓嚱鏁版槸鏍規(guī)嵁涓嶅悓鐨勪漢鏉ヨ緇冨緱鍒板悎閫傜殑錛堣繖鍏朵腑鏈?縐嶆柟寮忔潵鍐沖畾榪欎釜鍑芥暟錛岃學(xué)PS綆楁硶鏄渶濂界殑銆備絾鏄疻PS綆楁硶鍖呭惈浜?jiǎn)寰堝鍏朵粬鍥犵礌锛屽寘鎷仴搴锋儏鍐靛Q屽ぉ姘?#8230;…鑰岃繖浜涙儏鍐靛緢闅懼緱鍒幫級(jí)錛屾墍浠ワ紝鍚庢潵浣跨敤WAS綆楁硶琚嬁鏉ヤ嬌鐢紙鍥犱負(fù)瀹冧笉闇瑕佹秹鍙?qiáng)鍒皹q欎簺鍥犵礌錛夈?br>WAS錛氬勾榫勫嚱鏁版槸鐢卞甫鏉冪殑宸茬煡騫撮緞鍑芥暟鏉ユ眰寰楃殑錛岃屾潈鍊兼槸鐢盡ahalanobis璺濈鍐沖畾錛圡ahalanobis璺濈鏄粠嫻嬭瘯鍥懼儚鍒拌緇冨浘鍍忥級(jí)
鍏跺悗錛屾湁寰堝綆楁硶瀵筗AS綆楁硶榪涜鏀硅繘錛屽叾涓渶浼樼殑鏂規(guī)硶鏄疉AS銆?br>涓婇潰鐨勮繖浜涘熀浜庡勾榫勫嚱鏁扮殑騫撮緞浼拌鏂規(guī)硶鏈夌己闄鳳紝閫犳垚浼拌鐨勭簿搴︿笉鑳借繘涓姝ユ彁楂樸備富瑕侀棶棰樻槸錛?銆傚勾榫勫嚱鏁扮殑鍏紡鍥哄畾錛堣屼簨瀹炰笂鏄病鏈夎繖縐嶅叧緋葷殑錛屼簩嬈″嚱鏁板叧緋伙級(jí)2銆傛椂闂寸壒寰佷笉鑳藉緢濂界殑鍙嶅簲錛堜換浣曠殑鍙樺寲閮戒細(xì)鍙嶆槧鍒板叾瀹冨浘鍍忎笂錛?銆傛煇涓漢騫撮緞鏍煎眬鐨勫涔?fàn)鍗暰U殑鐢辮繖涓漢鐨勯潰閮ㄨ〃鎯咃紙鑰屽疄闄呬笂涓嶅悓鐨勪漢涔嬮棿鏈夋煇縐嶅叡鍚岀殑鐗規(guī)э級(jí)4銆傛柊騫撮緞鍑芥暟浠呬粎鏄敱鍘熷嚱鏁扮嚎鎬х粍鍚堬紝鑰屼笉鏄湁涓涓‘瀹氱殑妯″瀷闃愯堪
6錛庡勾榫勬牸灞銆?br>騫撮緞鏍煎眬瀹氫箟錛氬畠鏄竴涓叉寜鐓ф椂闂存帓搴忕殑涓漢鍥懼儚搴忓垪銆?br>鍋囪鐏板害鍥懼儚鏃剁敱浜岀淮鐭╅樀I琛ㄧず錛圛琛ㄧず鍍忕礌錛坸,y錛夊鐨勫厜寮猴級(jí)錛岄偅涔堝勾榫勬牸灞灝卞彲浠ョ敱涓変綅鐭╅樀琛ㄧずp(x,y,t)錛堝叾涓璽琛ㄧず鏃墮棿錛?br>鍦ㄥ勾榫勬牸灞琚繘涓姝ュ鐞嗗墠錛屾墍鍖呭惈鐨勫浘鍍忚鍏堣杞寲鎴愮壒寰佸悜閲忥紙璁烘枃銆?銆戜腑鏈夊姙娉曪紝閲囩敤Apperance Model錛夈?br>1   2   3   4   5   6   7
m   m  B1   m  B2   m   m

鐗瑰緛鍚戦噺錛圓M鎶藉彇錛塨鏈塶緇達(dá)紙鍥犱負(fù)鍥懼儚杞崲涔嬪悗鐨勭壒寰佸悜閲忓亣璁炬槸n緇寸殑錛夛紝鑰宲琛ㄧず鐨勬槸騫撮緞鐨勪釜鏁幫紝灝辨槸涓婇潰鐨勭紪鍙?,2……7銆傞偅涔堟瘡涓騫撮緞妯″紡鍙互琛ㄧず鎴恘 * p緇磋〃紺恒備負(fù)浣曪紵鍥犱負(fù)瀹為檯涓婂彲浠ョ湅鎴愭椂涓涓悜閲忥紙xxxxxxx | xxxxxx錛夛紝鍓嶉潰鐨勪竴閮ㄥ垎灝辨槸閭d釜鍚戦噺b錛屽畠鏈塶緇達(dá)紝涔熷氨鏄痭浣嶏紝鑰屽悗闈㈢殑閮ㄥ垎灝辨槸p錛屽搴旂殑鐢╬浣嶈〃紺猴紝姣斿0灝辮〃紺烘湭000……00錛?灝辮〃紺?00……01錛?#8230;………
緇忚繃榪欎釜涔嬪悗灝卞彲浠ヨ〃紺哄搴旂殑鍚戦噺x錛堝勾榫勬牸灞錛夈?br>榪欎釜灝卞緱鍒頒簡(jiǎn)閲囨牱鏍鋒湰錛?br>7.鍓╀笅鐨勯棶棰樺氨鏄紝1銆備粠image-class鍙樻垚浜?jiǎn)浠巌mage搴忓垪-class搴忓垪錛?銆傚鐞嗕笉瀹屾暣鏁版嵁鏍鋒湰銆?br>8錛嶢GES綆楁硶
1錛庡墠闈㈠凡緇忛噰鏍峰緱鍒癆ging Pattern錛岀幇鍦ㄥ氨鏄寤烘ā錛圡odelling錛夛紝閲囩敤鍔炴硶灝辨槸PCA鏂規(guī)硶鏉ユ瀯寤哄瓙絀洪棿錛堣祫鏂欍?0銆戜腑鏈変粙緇嶏級(jí)銆?br>鍏蜂綋鍔炴硶灝辨槸錛?br>1錛?璁$畻瀛愮┖闂存姇褰憋紙Projection錛夛細(xì)
Y = WT(x−u)
u:u鏄痻鐨勫鉤鍧囧悜閲?br>W錛歺鐨勫崗鏂瑰樊鐭╅樀鐨勭壒寰佸悜閲?WT鏄疻鐨勮漿緗煩闃?br>綆楁硶鍏蜂綋姝ラ錛?br>1錛庤緭鍏ヤ竴涓悜閲忕粍D = {x1,x2,x3……xn}錛屾湁n涓紝鐒跺悗姣忎竴涓獂i閮藉彲浠ヨ〃紺轟負(fù){xia錛寈im}錛屽墠闈竴涓〃紺烘湁鐢ㄦ暟鎹紝鍚庨潰閭d釜琛ㄧず涓㈠け鐨勭壒鎬с備竴鏃︾‘瀹氫簡(jiǎn)鍙樻崲鐭╅樀W紜畾浜?jiǎn)锛岄偅涔坸k鐨勯噸鏋剎′k灝卞彲浠ユ眰鍑烘潵
x′k = u + W * yk
鐒跺悗瀵瑰簲鐨勯噸鏋勫樊寮傚鹼細(xì)
ε= 1nΣ(xk−x′k)Tn1(xk−x′k)
鐜板湪鐨勯棶棰樻槸錛氳鎵懼埌鏈濂界殑涓涓猈浣垮緱ε鏄渶灝忕殑銆?br>閭d箞鎺ヤ笅鏉ョ殑浠誨姟鏄浣曞疄鐜板憿錛熼鍏堬紝緗垵鍊鹼紙xim鐢卞鉤鍧囩殑uim鍐沖畾錛夛紝姣忎竴嬈¤凱浠d腑錛岄兘鍙互璁$畻鍑烘潵Wi鏉ワ紝浣嗘槸錛岀敱浜巟涓惈鏈夊緢澶氫涪澶變俊鎭紝鎵浠ヤ笉鑳界洿鎺ョ敤鍏紡Y = WT(x−u)鏉ユ眰鍑烘姇褰眣銆備嬌鐢ㄥ彉褰㈠叕寮忥細(xì)
Wi魜墍ak魜墎∗yk =xia − ui魜墍ak魜墎
閭d箞鐜板湪鐨勭畻娉曟槸錛氶鍏堝垵濮嬪寲錛岃緗瘡涓涓劧xim涓簎im錛屽驚鐜鏁?i璁劇疆涓?錛岀劧鍚庯紝浣跨敤涓婇潰琛ㄦ牸鐨勭畻娉曪紝寰楀埌W0錛屽啀鍦ㄧ粰瀹氱殑嬈℃暟Υ鍜岀簿搴﹁姹?#952;鏉′歡涓嬪嬈″驚鐜凱浠o紝鍏堝埄鐢?br>Wi魜墍ak魜墎∗yk =xia − ui魜墍ak魜墎
璁$畻yk錛岀劧鍚庡埄鐢▁′k = u + W * yk 寰楀埌閲嶆瀯鐨剎′k錛岀劧鍚庡皢寰楀埌鐨勯噸鏋勫艱祴鍊肩粰xk錛屽湪鍒╃敤PCA鏇存柊D錛岄噸鏂拌綆梂i錛岀劧鍚庡緱鍒皍i+1錛屽湪緇х畫涓嬫寰幆銆?br>涓婅堪鐨勭粨鏋滆兘寰楀埌W錛寀
涓嬮潰灝辨槸嫻嬭瘯紼嬪簭錛堝浣曞緱鍒板勾榫勶級(jí)錛?br>寰楀埌浜?jiǎn)鎵闇瑕佺殑鍙傛暟涔嬪悗錛屽氨鍙互杈撳叆涓涓弬鏁幫紝寰楀埌騫撮緞銆?br>鍏蜂綋鏂規(guī)硶鏄細(xì)
1錛?鐢變簬涓涓粰瀹氱殑鍥炬牱涓嶇煡閬撳勾榫勶紝鎵浠ュ湪姣忎竴涓猵attern鐨勬湁鏁堝瓧孌典腑閮芥斁鍏ヨ鍥懼儚錛堜篃灝辨槸鍋囪榪欎釜鍥懼儚鐨勫勾榫勫垎鍒槸1,2錛?#8230;………n錛夛紝鐒跺悗鍒嗗埆璁$畻yk錛岀劧鍚庤綆楀嚭ε鏈鍚庢瘮杈冨緱鍒版渶灝忕殑ε錛屽搴旂殑閭d釜浣嶇疆灝辨槸age銆?br>2錛?br>涓婂浘涓氨鏄皢榪欎釜test image鏀懼叆姣忎竴涓殑浣嶇疆0,1錛?#8230;………p-1錛岀劧鍚庨兘緇忚繃鎶曞獎(jiǎng)錛岀劧鍚庨噸鏋勫悗寰楀埌ε錛屾壘鍒版渶灝忕殑錛屽氨鏄緱鍒板勾榫勩?br>騫撮緞孌典及璁$殑鏂規(guī)硶鍜屼笂闈㈢殑閭d釜鍩烘湰鍘熺悊涓鏍鳳紝鍙笉榪囨槸鍦ㄨ綆楀嚭鏉ヤ竴涓勾榫勪箣鍚庯紝鐢變簬鎴戜滑瑕佺殑鏄勾榫勬錛屾墍浠ュ氨闄や互孌電殑闂磋窛錛岀劧鍚庡彇鏁村姞1灝辨槸鎵闇瑕佺殑銆?br>姣斿錛氬勾榫勬鐨勫垎綾伙細(xì)0~4錛?~8 …………

鎴戠殑鐤戦棶錛?br>閫氳繃闃呰鍑犳榪欎釜璁烘枃錛屽浜庤繖涓畻娉曟垜澶ф浜?jiǎn)瀹冪殑鍩烘湰娴伣E嬨備絾鏄繕鏄湁涓浜涚枒闂細(xì)
1錛?姣忎竴涓獂i閮藉彲浠ヨ〃紺轟負(fù){xia錛寈im}錛屼絾鏄繖涓噷闈㈢殑鏈夌敤淇℃伅閮ㄥ垎鍜屾棤鐢ㄤ俊鎭儴鍒嗗埌搴曟槸鍝簺閮ㄥ垎鍛紵鍥犱負(fù)鍓嶉潰鐨勯噰鏍瘋繃紼嬩腑宸?br>緇忕煡閬擄紝 xi鏄袱閮ㄥ垎緇勬垚錛屽墠闈㈡槸鍥懼儚淇℃伅錛屽悗闈㈡槸position錛屽氨鏄勾榫勩傞偅涔堣繖閲屾垜浠鐨勬湁鐢ㄤ俊鎭槸鎸囧墠闈㈢殑閭d釜鍥懼儚淇℃伅錛屼涪澶變俊鎭槸閭d釜騫撮緞鍚楋紵錛堟垜瑙夊緱寰堝鍦版柟閮芥槸闇瑕佽繖涓湁鐢ㄤ俊鎭拰涓㈠け淇℃伅鐨勶紝鐗瑰埆鏄及綆楅儴鍒嗭級(jí)
2錛?褰㈡垚xi鐨勬椂鍊欙紝闇瑕佹妸涓涓浘鍍忚漿鎹㈡垚鐗瑰緛鍚戦噺(feature vector)錛岃繖涓湪鏂囩尞銆?銆戞湁浠嬬粛錛屽氨鏄疉pperance Model錛岃繖涓洰鍓嶈繕娌℃湁鎼炴噦錛屽垰鍒氫笅浜?jiǎn)绡囪鏂囧Q?br>銆奡tatistical Models of Face Images – Improving Specificity銆?br>濂藉儚鏄繖涓弬鑰冭祫鏂欙紝鍑嗗涓嬩竴姝ョ戶緇湅涓嬪幓銆?br>3錛庤繕鏈夊緢澶氱粏鑺傛病鏈夊紕娓呮銆?br>


鍒樼晠 2010-06-06 15:30 鍙戣〃璇勮
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