對圖像傳感器的認識誤區:傳感器類型
發布時間:2023-06-15 來源:安森美 責任編輯:wenwei
【導讀】如今,攝像頭已隨處可見,工廠、車輛、公共建築、街道……其(qi)數(shu)量(liang)還(hai)在(zai)不(bu)斷(duan)增(zeng)多(duo)。大(da)部(bu)分(fen)攝(she)像(xiang)頭(tou)依(yi)靠(kao)圖(tu)像(xiang)傳(chuan)感(gan)器(qi)將(jiang)場(chang)景(jing)中(zhong)的(de)光(guang)線(xian)轉(zhuan)換(huan)為(wei)電(dian)子(zi)圖(tu)像(xiang),因(yin)而(er)推(tui)升(sheng)了(le)對(dui)圖(tu)像(xiang)傳(chuan)感(gan)器(qi)的(de)需(xu)求(qiu)。但(dan)圖(tu)像(xiang)傳(chuan)感(gan)器(qi)種(zhong)類(lei)繁(fan)多(duo),功(gong)能(neng)特(te)性(xing)各(ge)不(bu)相(xiang)同(tong),設(she)計(ji)人(ren)員(yuan)需(xu)要(yao)熟(shu)悉(xi)不(bu)同(tong)傳(chuan)感(gan)器(qi)的(de)不(bu)同(tong)功(gong)能(neng)特(te)性(xing),才(cai)能(neng)為(wei)特(te)定(ding)應(ying)用(yong)選(xuan)擇(ze)合(he)適(shi)的(de)攝(she)像(xiang)頭(tou)。
chengyongcheshexiangtoudazailiangjizeng,youxiehaohuachexingshenzhipeiyoushijigeshexiangtou。qichezhizaoshangxuyaotianjiagengduochuanganqiyitishenganquanxing,haixukaolvmeigeshexiangtoudejingjichengbenhezhanyongkongjian,zheweiqidailailetiaozhan。yushi,qichezhizaoshangkaishixunzhaojiejuefangan,xiwangyongyigeshexiangtoubuhuotongshizhenduirenyanshijiaohejiqishijiaoyouhuadetuxiang。renyanshijiaoyujiqishijiaosuoshiyongdetuxiangzhiliangcunzaiqubie,xuyaoquanhengqushe,yincishishizheyifangfatongyangnandubuxiao。
人眼視覺
renyanshijiaoxitongduixiangsujianliangduqiangruochayideganzhiyujiqishijiaosuanfabutong。renyanduiliangdudeganzhishifeixianxingde,yejiushishuo,ruguosuozaihuanjingzhongguangzishuliangzengjiayibei,yanjingganzhidaodeliangduyezhizengjialeyibei。zhexuyaotiaozhengyongyurenyanshijiaodeshexiangtoutuxiangyiduiyingqidongtaifanwei,congerjiangrenyanganzhidejiaoliangquyuhejiaoanquyudexijiechongfenfangda。ciwai,womenduiyibanyansehe LED 光源的閃爍十分敏感(這一問題日益普遍),yinciruguoshexiangtoudaozhiyanseshizhen,jishituxiangqingxiqieqitafangmiandezhilianghengao,yehuiyingxiangrenleideshijiaotiyan。duiyuhoushishexiangtoudengfuzhujiashidebeidonganquanxitong,jiashiyuanyebijiqishijiaoxitongyouyoushi,yinweiruguotuxiangyouque,jiashiyuanhuizidongfaxian,ercishiwuxuyilaishexiangtou。suiranzhebuhuiyinfazhongdaanquanshigu,danshexiangtousangshiyongchuyehuidailaibubian,yinci,jiashiyuanbuhuiyilaishexiangtoutuxiang,ershigengduodijinxingzhudongpanduan。
機器視覺
yurenyanshijiaobutong,shiyongjiqishijiaodezidonghuaxitonghuizhakantuxiangzhongmeigexiangsudeshuzizhi,yinciqiduiguangzishuchengxianxingfanying。yuyongyurenyanshijiaodetuxiangbutong,yincibixutiaozhengyishuchuduiyingyuceliangxiangsuzhidetuxiang。ciwai,jiqishijiaoxitongbixujingguobianchenghuocaiyongteshudecuowujianceyingjiancainengjiancechutuxiangquexian。queshaogaiyingjiandexitongkenengwufazhengchanggongzuo,qiebuhuigaozhijiashiyuanqigongnengyishousunhuowufayunxing。duiyuxiangzidongjinjizhidongzheyangdezhudonganquanxitong,ruguochuxianguzhang,wubaojiangdaozhixitongzaiwupengzhuangweixianshishishizhidong,erloubaohuishixitongzaifashengweixianshiwanquanshiling,congerzaochengyanzhongdehouguo。ruguojiashiyuanshiyongcileifuzhuxitong,zexuyaoxianshixinxilaizhishiqigongnengbuquan,dankenengwufafachugongnengshousundejinggao。bufenxitonghuitixingjiashiyuanqigongnengshousunhuo“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視覺和感知的傳感器解決方案
好(hao)消(xiao)息(xi)是(shi),部(bu)分(fen)傳(chuan)感(gan)器(qi)已(yi)具(ju)備(bei)同(tong)時(shi)適(shi)用(yong)於(yu)人(ren)眼(yan)和(he)機(ji)器(qi)視(shi)覺(jiao)的(de)出(chu)色(se)功(gong)能(neng),且(qie)可(ke)進(jin)行(xing)優(you)化(hua)並(bing)輸(shu)出(chu)兩(liang)路(lu)同(tong)步(bu)數(shu)據(ju)流(liu),助(zhu)力(li)工(gong)程(cheng)師(shi)設(she)計(ji)可(ke)同(tong)時(shi)用(yong)於(yu)人(ren)眼(yan)和(he)機(ji)器(qi)視(shi)覺(jiao)功(gong)能(neng)的(de)攝(she)像(xiang)頭(tou)係(xi)統(tong)。這(zhe)樣(yang)一(yi)來(lai),汽(qi)車(che)製(zhi)造(zao)商(shang)隻(zhi)需(xu)在(zai)車(che)內(nei)的(de)特(te)定(ding)位(wei)置(zhi)部(bu)署(shu)一(yi)個(ge)攝(she)像(xiang)頭(tou),最(zui)大(da)限(xian)度(du)地(di)減(jian)小(xiao)占(zhan)用(yong)空(kong)間(jian)並(bing)降(jiang)低(di)係(xi)統(tong)成(cheng)本(ben),獲(huo)得(de)可(ke)針(zhen)對(dui)兩(liang)種(zhong)工(gong)作(zuo)負(fu)載(zai)應(ying)用(yong)優(you)化(hua)的(de)圖(tu)像(xiang)。
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