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智能視(shi)頻分(fen)析到底(di)是(shi)什么(me)
時間:2021-11-04 來源:成(cheng)都萬全安防公司 瀏覽:887次
智能視頻(pin)分析到底(di)是(shi)什么
智能視頻分析是計算(suan)機(ji)圖像(xiang)(xiang)視(shi)覺(jue)技術(shu)在安防領域應用(yong)的(de)(de)一(yi)個(ge)分(fen)支,是一(yi)種基于(yu)目(mu)標(biao)行為(wei)的(de)(de)智(zhi)能監控技術(shu)。區別(bie)于(yu)傳統的(de)(de)移(yi)動偵(zhen)測(ce)技術(shu),智(zhi)能視(shi)頻(pin)分(fen)析(xi)(xi)首先將場景(jing)(jing)(jing)中(zhong)背景(jing)(jing)(jing)和目(mu)標(biao)分(fen)離(li),識別(bie)出真正的(de)(de)目(mu)標(biao),去除背景(jing)(jing)(jing)干擾(如樹葉抖動、水面波浪、燈(deng)光(guang)變(bian)化),進而分(fen)析(xi)(xi)并追蹤在攝(she)像(xiang)(xiang)機(ji)場景(jing)(jing)(jing)內出現的(de)(de)目(mu)標(biao)行為(wei)。
簡單的來說就是通過一系列的算法對智能監控拍攝到的畫面進行分析,由算(suan)法對(dui)特定的人、事、物進行識別,然后(hou)在進行下一步動(dong)作。這樣就不(bu)需要我們(men)人為地盯著視頻畫面去看,這種讓機器自動(dong)分析識別內容的系(xi)統就是智能視頻分析技術。
舉個例(li)子(zi)來說:比(bi)如安(an)(an)全(quan)(quan)(quan)帽(mao)識別(bie),攝像(xiang)頭采集到圖(tu)(tu)像(xiang)之后,系統會(hui)對畫面(mian)中的(de)未佩(pei)(pei)戴(dai)(dai)安(an)(an)全(quan)(quan)(quan)帽(mao)的(de)人進(jin)行分析。這其中涉(she)及到幾個步驟,一是(shi)找(zhao)出圖(tu)(tu)像(xiang)中的(de)人,二是(shi)找(zhao)出安(an)(an)全(quan)(quan)(quan)帽(mao),三是(shi)找(zhao)出圖(tu)(tu)像(xiang)中的(de)人未佩(pei)(pei)戴(dai)(dai)安(an)(an)全(quan)(quan)(quan)帽(mao)。當監(jian)測到人未佩(pei)(pei)戴(dai)(dai)好安(an)(an)全(quan)(quan)(quan)帽(mao)那么(me)系統會(hui)主動抓拍(pai)現(xian)場圖(tu)(tu)片,然后傳輸(shu)到后臺或預定的(de)手(shou)機(ji)端。這樣就(jiu)實現(xian)了(le)對工地未佩(pei)(pei)戴(dai)(dai)安(an)(an)全(quan)(quan)(quan)帽(mao)的(de)管控。同時也可(ke)以實現(xian)攝像(xiang)機(ji)語音提醒,提醒大家佩(pei)(pei)戴(dai)(dai)好安(an)(an)全(quan)(quan)(quan)帽(mao)。
智能視(shi)頻分(fen)析與移動(dong)偵測的區別
智(zhi)能視(shi)頻分(fen)析與(yu)移動(dong)(dong)偵測(ce)的本質(zhi)(zhi)區別是前者(zhe)可以(yi)準確識(shi)別出(chu)視(shi)頻中(zhong)真正活動(dong)(dong)的目(mu)標,而后(hou)者(zhe)只能判斷出(chu)畫面變化的內容,無法區分(fen)目(mu)標和(he)背景(jing)干擾。所以(yi)智(zhi)能視(shi)頻分(fen)析相對于移動(dong)(dong)偵測(ce),抗干擾能力有質(zhi)(zhi)的提高。使(shi)用(yong)智(zhi)能分(fen)析技術,用(yong)戶(hu)可以(yi)根據(ju)的實際應用(yong),在不(bu)同攝像(xiang)機的場景(jing)中(zhong)預設(she)不(bu)同的報(bao)(bao)(bao)(bao)警(jing)規則,一旦目(mu)標在場景(jing)中(zhong)出(chu)現了違(wei)反預定義規則的行(xing)為,系統(tong)會自動(dong)(dong)發(fa)出(chu)報(bao)(bao)(bao)(bao)警(jing)。報(bao)(bao)(bao)(bao)警(jing)信(xin)息(xi)有多種形(xing)式(shi),包括(kuo)本地驅動(dong)(dong)報(bao)(bao)(bao)(bao)警(jing)設(she)備和(he)向后(hou)端監控中(zhong)心發(fa)送報(bao)(bao)(bao)(bao)警(jing)數據(ju),由(you)監控工(gong)作站控制以(yi)彈(dan)出(chu)視(shi)頻、自動(dong)(dong)彈(dan)出(chu)報(bao)(bao)(bao)(bao)警(jing)信(xin)息(xi)、驅動(dong)(dong)報(bao)(bao)(bao)(bao)警(jing)設(she)備等形(xing)式(shi)報(bao)(bao)(bao)(bao)警(jing)。
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