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1、1000-9825/2003/14(11)1900©2003JournalofSoftware软件学报Vol.14,No.11*彩色图像人脸高光区域的自动检测与校正方法1,2+1陈锻生,刘政凯1(中国科学技术大学电子工程与信息科学系,安徽合肥230027)2(华侨大学计算机科学系,福建泉州362011)AMethodforAutomaticDetectionandCorrectionofHighlightedAreainColorFaceImage1,2+1CHENDuan-Sheng,LIUZheng-Kai1(DepartmentofElectricalEngine
2、eringandInformationScience,UniversityofScienceandTechnologyofChina,Hefei230027,China)2(DepartmentofComputerScience,HuaqiaoUniversity,Quanzhou362011,China)+Correspondingauthor:Phn:86-595-2693985,Fax:86-595-2693985,E-mail:dschen@hqu.edu.cnhttp://www.ustc.edu.cnReceived2002-10-28;Accepted20
3、03-02-28ChenDS,LiuZK.Amethodforautomaticdetectionandcorrectionofhighlightedareaincolorfaceimage.JournalofSoftware,2003,14(11):1900~1906.http://www.jos.org.cn/1000-9825/14/1900.htmAbstract:Differentenvironmentilluminationhasagreatimpactonfacedetectionandrecognition.Theautomaticdetectionan
4、dradiationcorrectionofahighlightedfaceareaishelpfultoanalyzeandidentifyhumanfacescorrectlyinacolorimage.Inthispaper,anovelapproachispresentedbasedonadichromaticreflectionmodeltodetectandcorrecthighlightedskinpixelsintheTSL(tint-saturation-luminance)colorspace.Afterinspectingthedistributi
5、onconfigurationofskinpixelsinvariouscolorspacesandthespectrumreflectionfeaturesofhumanskin,theauthorscarryoutthehighlightedareaanalysisonacriticaltwo-dimensionalplaneinsteadofinathree-dimensionalcolorspace,whichbringsforthcertainadvantages:computationcomplexityisdeduced,ratesbetweeneigen
6、valuesareproducedinstepwisePCAtodetectautomaticallytheexistenceofhighlightedskinandestimaterobustlytheskindichromaticreflectionvectors.Thehighlightedskinregionsarecompensatedbasedonthedichromaticreflectionmodel.Keywords:skinmodel;highlightdetection;radiationcorrection;dichromaticreflecti
7、onmodel摘要:人脸检测和识别受不同环境照明的影响很大,彩色图像中人脸高光区域的自动检测和辐射校正有助于对人脸的正确分析和识别.提出了一种在TSL(tint-saturation-luminance)彩色空间基于双色反射模型进行高光检测和辐射校正的新方法.通过考察肤色在各种不同彩色空间中的分布形态,以及对皮肤光谱反射特性的分析,*SupportedbytheScientificResearchFoundationofOverseaChineseAffairsOfficeofStateCouncilunderGrantNo.02QZR1