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1、基于視頻的行人檢測研究摘要隨著中國經(jīng)濟(jì)的快速發(fā)展,公路交通日益發(fā)達(dá),更加便利,但交通事故頻繁發(fā)生,并且有著進(jìn)一步惡化的趨勢,這個問題是亟待解決的。為了保證行人的人生安全,保證交通的有序通暢,保證中國社會的和諧安定,視頻的行人檢測技術(shù)研發(fā)勢在必行。本論文主要是針對于基于視頻的行人檢測進(jìn)行了研究,主要內(nèi)容包括:(1)對視頻文件進(jìn)行預(yù)處理,將視頻一幀一幀地分離開來,以圖片的形式進(jìn)行保存,同時對其進(jìn)行灰度化和去噪,加強(qiáng)視頻圖像的對比度,便于之后的目標(biāo)識別和提取。(2)目標(biāo)圖像的提取方法主要有背景差分法和幀間差分法,這兩種方
2、法各自有自己的優(yōu)點(diǎn)和缺點(diǎn),可以通過將兩者相互結(jié)合,提取出完整的目標(biāo)人物。(3)當(dāng)然二值化后的目標(biāo)很可能產(chǎn)生空洞和斑點(diǎn),致使圖像走形,我們可以通過形態(tài)學(xué)處理,填充目標(biāo)的空洞,從而呈現(xiàn)于實體相一致的二值圖像。關(guān)鍵詞:行人檢測;背景差分法;幀間差分法;MATLAB;視頻ThePedestrianDetectionBasedVideoAbstractWiththerapiddevelopmentofChina'seconomy,qualityoflifecontinuestoimprove,roadtransportinc
3、reasinglydeveloped,moreconvenient,butaccidentsoccurfrequently,andhasafurtherdeterioration,theproblemissolved.Inordertoensurethesafetyofpedestriansinlife,toensuresmoothandorderlytraffic,toensureharmonyandstabilityofChinesesociety,videopedestriandetectiontechnol
4、ogydevelopmentimperative.Inaddition,insomelargesupermarkets,shoppingmalls,cinemas,especiallybanks,arelikelytoexisttheft,robberyevil,inordertocrackdownoncrimeandhelppolicecrackcasesmoreeffectively,weneedontheseoccasionsinstallationofpedestriandetectionsystem.Th
5、ispaperismainlyaimedatvideo-basedpedestriandetectionhasbeenstudied,themaincontentsinclude:(1)Pre-processingofthevideofile,thevideoframebyframeseparated,intheformofpicturestosave,whileitsgray,strengthenthecontrastofvideoimages,objectrecognitionandextractiontofa
6、cilitatelater.(2)Extractionmethodsmainlytargetimagebackgroundsubtractionandframedifferencemethod,thesetwomethodseachhavetheirownadvantagesanddisadvantages,youcancombinethetwotoeachother,toextractthecompletetargetfigure.(3)Ofcourse,afterthetargetbinaryislikelyt
7、ohavevoidsandspots,causingtheimagetotakeshape,wecanmorphologicalprocessing,fillingtheemptygoal,therebyrenderingtheentityconsistentbinaryimage.Keywords:PedestrianDetection;BackgroundSubtraction;FrameDifferenceMethod;MATLAB;Video目錄1緒論............................
8、............................................................................................................11.1研究背景及意義.............................................................