體育視頻分析關(guān)鍵技術(shù)研究與實(shí)現(xiàn).pdf

1、北京工業(yè)大學(xué)碩士學(xué)位論文體育視頻分析關(guān)鍵技術(shù)研究與實(shí)現(xiàn)姓名：崔皓申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：毋立芳20080501北京T業(yè)大學(xué)工學(xué)碩七學(xué)位論文AbstractV撕oussportsg鋤esbringabouttheeXplosiVeincreasingofsportVideos，whichrequiree虢ctiVesportsVideoanalySisIIlthispaper，takingbasketbanVide

2、oforexample，westudythekeyissuesofsportsVideoanalysissuchasshotclassification，locationofscoreboardandrecognitionofscoreAshotsclassi6cationmemodcombiIlingcolorandedgeisproposedFirstly，key覷IrllesareeXtractedinequalintervali

3、nashotThenforaf鋤e，DominantC010rSareobtainedbyHue，如rthenTlore，theVaIianceofDominantC010rsandRatioofclusteredc010rsarecomputed，bywhichthe丘鋤ecouldbeprimamyclassifiedintopla姐ngornon—pla姐ng仔鋤e，then也eedgepixelsofplaying丘鋤ea11e

4、countedandtheratioofedgepixelsiscomputed，bywhichthe矗鋤eareclassifiedintopla姐ngornon—pla如ng6。鋤eFinally；ashotcouldbeclassifiedbythepercentageofplaying矗鋤esAscoreboardlocationmemodcombiningfeatureaIldtemplateisproposedFirst，w

5、eextracttwokey行鋤es，meintervalofwhichisl00Then，theedgepixelsoftwo丘amesareextractedrespectiVelyNext，thescoreboardispIIimarilylocatedby“AND’’oftwoedgeimagesFinaUy；slidingwindowisusedtolocatethescoreboardaccuratelySIFT(Scale

6、Inv撕ant)areextractforreco盟itionofscoresFirst，1inearinte印01ationmethodareusedtoobtainimagesofdifferentscales，andtheseimagearepreprocessedbyGaussianfiltering趿dapyr鋤idimage伊oupareobtained111enmefeaturepointsarefounda11dmefe