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1、基于多層次信息的連續(xù)手寫中文的自適應分割方法AdaptiveCharacterExtractionfromContinuousHandwritingChineseTextBasedonMultilevelConstrains張習文,高秀娟,戴國忠ZhangXiwen,GaoXiujuan,DaiGuozhong中國科學院軟件研究所,人機交互技術(shù)與智能信息處理實驗室,北京,100080LaboratoryofHuman-ComputerInteractionandIntelligentInformationProcessing,InstituteofSoftw
2、are,theChineseAcademyofSciences,Beijing100080摘要:單字提取是連續(xù)手寫中文識別的前提。本文給出了一種基于多層次信息的自適應單字提取方法。以候選單字個數(shù)與字寬度方差之比為處理滿意度。以行筆劃為處理單元,先根據(jù)候選單字最小包圍矩形的水平間距構(gòu)建多層次樹表示,然后對最滿意層中的每個候選單字進行多層次分析和自適應處理。如果候選單字的寬度大于或小于字寬度的較大值或較小值,則遍歷其下層子節(jié)點或上層父節(jié)點,進行候選單字的分裂或合并,選擇提高滿意度的候選單字,同時更新字寬度閾值。測試結(jié)果表明該方法對連續(xù)手寫中文具有較好的分割效果。
3、AbstractItisprerequisitetoextractcharacterfromthecontinuoushandwritingChinesetextforitsrecognition.ThepaperproposesanovelapproachtoadaptivelyextractingcharacterfromthecontinuoushandwritingChinesetextbasedonmultilevelconstrains.Itaimstoextractmorecharacterswithsmallercharacterwidths
4、tandarddeviation.Thesegmentationisfeedintostrokesbyline.Atreeisconstructedtorepresentthemultilevelcombinationofalineofstrokesaccordingtogapsbetweenstrokesorcandidatecharacters.Thecandidatecharacterssharedthesamelevel,withthemostsatisfactorycandidatecharacters,arerefinedtobemergedor
5、splitunderconstrainsofcandidatecharactersoftheirlowerlevelsorupperlevelsinthestroketree.Ifonecandidatecharacter’swidthexceedsorislessthanthebiggercharacterwidththresholdorthesmallerone,thecandidatecharacterwillbesplitormerged.Thecandidatecharactersareidentifiedasthecorrectonesifthe
6、yincreasethesatisfactionofthesegmentationresult.Thecharacterwidththresholdsareupdatedtogetherwithcharacterextraction.ManyapplicationsshowthattheapproachiseffectiveandrobustforcharacterextractionfromcontinuoushandwritingChinesetext.關(guān)鍵詞:連續(xù)手寫中文,單字提取,樹表示KeywordscontinuoushandwritingChi
7、nesetext,characterextraction,treerepresentation中圖法分類號:TP391作者簡介:張習文,生于1971年,男,遼寧大連人,副研究員,主要研究方向為連續(xù)手寫中文處理、多通道融合、模式識別等。通訊地址:北京市海淀區(qū)中關(guān)村南四街四號,中科院軟件所人機交互技術(shù)與智能信息處理實驗室4號樓305室郵編:100080聯(lián)系電話:010-62540434E-mail:zxw@iel_mail.iscas.ac.cn20currencydeposit,weprescribeapassonaregularbasis,qilucarda
8、ccountonaregularbasis),cer