描述
立體視覺(jué)方法,屬于多目或者雙目視覺(jué),采用兩個(gè)或者多個(gè)攝像機(jī)從不同的位置拍攝圖像,通過(guò)三角測(cè)距原理得到物體的三維尺寸。其缺點(diǎn)是設(shè)備安裝復(fù)雜,需要在多幅圖像之間進(jìn)行對(duì)應(yīng)點(diǎn)的匹配。
光流法:當(dāng)目標(biāo)在相機(jī)前運(yùn)動(dòng)或相機(jī)在一個(gè)固定的環(huán)境中運(yùn)動(dòng)時(shí),都能獲得對(duì)應(yīng)的圖像變化,這些變化可用來(lái)恢復(fù)(獲得)相機(jī)和目標(biāo)間的相對(duì)運(yùn)動(dòng)以及場(chǎng)景中多個(gè)目標(biāo)間的相互關(guān)系。在具體技術(shù)上就是通過(guò)求解光流方程來(lái)求取表面朝向。此方法有一定的限制,要求圖像要有足夠的采樣密度,同時(shí)在圖像平面中每一點(diǎn)上的灰度變化應(yīng)該完全是由圖像中模式的運(yùn)動(dòng)引起的,不應(yīng)該包括反射性質(zhì)變化帶來(lái)的影響。其缺點(diǎn)是需要控制照明或物體運(yùn)動(dòng)且條件要求苛刻,適用范圍窄。
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主營(yíng):世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國(guó)AB)系列產(chǎn)品》
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REXROTH VT5015S31 USPP VT5015S31
Rexroth Proportional Valve Card with Holder
REXROTH 524-001-439-0/523-599-640-2 CYLINDER NEW!!!
R902117357 HOUSING BOSCH REXROTH
Rexroth HLB01.1C-01K0-N?06R0 A-007-NNNN
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REXROTH P-031590-00000 NSFP P03159000000
REXROTH VT5013-37/R5E NSFP VT501337R5E
rexroth NY4960 LMS-MUX interface NEW
Bosch REXROTH GT10042-0909 Pneu Solenoid valve 4 units
REXROTH BOSCH,CL03 R 480 029 743 Valve Terminal System
Enlarge
Rexroth Amplifier Card Model VT-2000K43/2 Rebuilt
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Rexroth Control Valve MNR R900553481 4WE6J1/EW110N9D?AL
REXROTH VT5010S22R1 NSPP VT5010S22R1
Rexroth Indramat RME12.2-32-DC02?4 NEW RME12232DC024
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REXROTH H-2-FM CONTROLAIR PNEUMATIC CONTROL VALVE NEW
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Rexroth Hydraulic Flow Control Valve
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4562 NEW Rexroth R900423271 Hydraulic Control Valve
4736 Rexroth R900423271 Hydraulic Valve
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Rexroth R90093805 LC63A05E7X LC63 A05E7X Logic Valve
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*NICE*Rexroth Hydraulic Pump AA10VS071DFR/30?R*NICE*
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LOT OF 4 NEW REXROTH STACKMASTER VALVE R432009142 BOSCH
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