http://kadhoai.com.cn 2026-04-25 15:31:39 來源:安森美
如今,攝像頭已隨處可見,工廠、車輛、公共建築、街道……qishulianghaizaibuduanzengduo。dabufenshexiangtouyikaotuxiangchuanganqijiangchangjingzhongdeguangxianzhuanhuanweidianzituxiang,yinertuishengleduituxiangchuanganqidexuqiu。dantuxiangchuanganqizhongleifanduo,gongnengtexinggebuxiangtong,shejirenyuanxuyaoshuxibutongchuanganqidebutonggongnengtexing,cainengweitedingyingyongxuanzeheshideshexiangtou。
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人眼視覺
人(ren)眼(yan)視(shi)覺(jiao)係(xi)統(tong)對(dui)像(xiang)素(su)間(jian)亮(liang)度(du)強(qiang)弱(ruo)差(cha)異(yi)的(de)感(gan)知(zhi)與(yu)機(ji)器(qi)視(shi)覺(jiao)算(suan)法(fa)不(bu)同(tong)。人(ren)眼(yan)對(dui)亮(liang)度(du)的(de)感(gan)知(zhi)是(shi)非(fei)線(xian)性(xing)的(de),也(ye)就(jiu)是(shi)說(shuo),如(ru)果(guo)所(suo)在(zai)環(huan)境(jing)中(zhong)光(guang)子(zi)數(shu)量(liang)增(zeng)加(jia)一(yi)倍(bei),眼(yan)睛(jing)感(gan)知(zhi)到(dao)的(de)亮(liang)度(du)也(ye)隻(zhi)增(zeng)加(jia)了(le)一(yi)倍(bei)。這(zhe)需(xu)要(yao)調(tiao)整(zheng)用(yong)於(yu)人(ren)眼(yan)視(shi)覺(jiao)的(de)攝(she)像(xiang)頭(tou)圖(tu)像(xiang)以(yi)對(dui)應(ying)其(qi)動(dong)態(tai)範(fan)圍(wei),從(cong)而(er)將(jiang)人(ren)眼(yan)感(gan)知(zhi)的(de)較(jiao)亮(liang)區(qu)域(yu)和(he)較(jiao)暗(an)區(qu)域(yu)的(de)細(xi)節(jie)充(chong)分(fen)放(fang)大(da)。此(ci)外(wai),我(wo)們(men)對(dui)一(yi)般(ban)顏(yan)色(se)和(he) LED 光源的閃爍十分敏感(這一問題日益普遍),因(yin)此(ci)如(ru)果(guo)攝(she)像(xiang)頭(tou)導(dao)致(zhi)顏(yan)色(se)失(shi)真(zhen),即(ji)使(shi)圖(tu)像(xiang)清(qing)晰(xi)且(qie)其(qi)他(ta)方(fang)麵(mian)的(de)質(zhi)量(liang)很(hen)高(gao),也(ye)會(hui)影(ying)響(xiang)人(ren)類(lei)的(de)視(shi)覺(jiao)體(ti)驗(yan)。對(dui)於(yu)後(hou)視(shi)攝(she)像(xiang)頭(tou)等(deng)輔(fu)助(zhu)駕(jia)駛(shi)的(de)被(bei)動(dong)安(an)全(quan)係(xi)統(tong),駕(jia)駛(shi)員(yuan)也(ye)比(bi)機(ji)器(qi)視(shi)覺(jiao)係(xi)統(tong)有(you)優(you)勢(shi),因(yin)為(wei)如(ru)果(guo)圖(tu)像(xiang)有(you)缺(que),駕(jia)駛(shi)員(yuan)會(hui)自(zi)動(dong)發(fa)現(xian),而(er)此(ci)時(shi)無(wu)需(xu)依(yi)賴(lai)攝(she)像(xiang)頭(tou)。雖(sui)然(ran)這(zhe)不(bu)會(hui)引(yin)發(fa)重(zhong)大(da)安(an)全(quan)事(shi)故(gu),但(dan)攝(she)像(xiang)頭(tou)喪(sang)失(shi)用(yong)處(chu)也(ye)會(hui)帶(dai)來(lai)不(bu)便(bian),因(yin)此(ci),駕(jia)駛(shi)員(yuan)不(bu)會(hui)依(yi)賴(lai)攝(she)像(xiang)頭(tou)圖(tu)像(xiang),而(er)是(shi)更(geng)多(duo)地(di)進(jin)行(xing)主(zhu)動(dong)判(pan)斷(duan)。
機器視覺
與yu人ren眼yan視shi覺jiao不bu同tong,使shi用yong機ji器qi視shi覺jiao的de自zi動dong化hua係xi統tong會hui查zha看kan圖tu像xiang中zhong每mei個ge像xiang素su的de數shu字zi值zhi,因yin此ci其qi對dui光guang子zi數shu呈cheng線xian性xing反fan應ying。與yu用yong於yu人ren眼yan視shi覺jiao的de圖tu像xiang不bu同tong,因yin此ci必bi須xu調tiao整zheng以yi輸shu出chu對dui應ying於yu測ce量liang像xiang素su值zhi的de圖tu像xiang。此ci外wai,機ji器qi視shi覺jiao係xi統tong必bi須xu經jing過guo編bian程cheng或huo采cai用yong特te殊shu的de錯cuo誤wu檢jian測ce硬ying件jian才cai能neng檢jian測ce出chu圖tu像xiang缺que陷xian。缺que少shao該gai硬ying件jian的de係xi統tong可ke能neng無wu法fa正zheng常chang工gong作zuo,且qie不bu會hui告gao知zhi駕jia駛shi員yuan其qi功gong能neng已yi受shou損sun或huo無wu法fa運yun行xing。對dui於yu像xiang自zi動dong緊jin急ji製zhi動dong這zhe樣yang的de主zhu動dong安an全quan係xi統tong,如ru果guo出chu現xian故gu障zhang,誤wu報bao將jiang導dao致zhi係xi統tong在zai無wu碰peng撞zhuang危wei險xian時shi實shi施shi製zhi動dong,而er漏lou報bao會hui使shi係xi統tong在zai發fa生sheng危wei險xian時shi完wan全quan失shi靈ling,從cong而er造zao成cheng嚴yan重zhong的de後hou果guo。如ru果guo駕jia駛shi員yuan使shi用yong此ci類lei輔fu助zhu係xi統tong,則ze需xu要yao顯xian示shi信xin息xi來lai指zhi示shi其qi功gong能neng不bu全quan,但dan可ke能neng無wu法fa發fa出chu功gong能neng受shou損sun的de警jing告gao。部bu分fen係xi統tong會hui提ti醒xing駕jia駛shi員yuan其qi功gong能neng受shou損sun或huo“不可用”,它們通常依賴特殊的硬件功能來檢測傳感器中的錯誤或故障。此類功能須遵循汽車安全完整性等級 (ASIL) 等相關的行業標準,支持 ASIL 的(de)傳(chuan)感(gan)器(qi)將(jiang)具(ju)有(you)檢(jian)測(ce)和(he)報(bao)告(gao)故(gu)障(zhang)的(de)功(gong)能(neng),可(ke)提(ti)高(gao)安(an)全(quan)性(xing)。以(yi)上(shang)就(jiu)是(shi)用(yong)於(yu)機(ji)器(qi)視(shi)覺(jiao)的(de)傳(chuan)感(gan)器(qi)與(yu)用(yong)於(yu)人(ren)眼(yan)視(shi)覺(jiao)的(de)傳(chuan)感(gan)器(qi)需(xu)要(yao)進(jin)行(xing)不(bu)同(tong)配(pei)置(zhi)的(de)兩(liang)個(ge)原(yuan)因(yin)。

120 度視場傳感器 RYYCy 圖像,經過彩色處理
使用單個攝像頭實現觀察和感知的傳感器解決方案
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