Several cd1 - xznxte ( with the original concentration of x = 0 . 04 ) crystals of different sizes were grown by bridgman methods modified with the accelerated crucible rotation technique ( acrt - b ) 本實(shí)驗(yàn)采用加入加速柑禍旋轉(zhuǎn)技術(shù)的bridgman法,生長(zhǎng)了兩種不同尺寸的cdl _ xznxte (起始組分為x = 0 . 04 )晶錠。
Based on deep researching of electronic canceling image - rotation technique , it designs high speed digital video processing module of fpga + dsp hardware , provides the relating arithmetic , and adopts fpga to realize video value insert which has a strict timing characteristic and the image - space transformation with the complex control requirement , the trigonometric function with a lot of operation is finished by the dsp 本文在對(duì)電子消像旋技術(shù)深入研究的基礎(chǔ)上,根據(jù)消像旋算法需求和實(shí)時(shí)性要求,設(shè)計(jì)了fpga + dsp硬件構(gòu)架的高速數(shù)字視頻處理平臺(tái)vsb ,并提出一種與之相適應(yīng)的算法解決方案?;趘sb硬件資源采用fpga完成時(shí)序要求較嚴(yán)格的視頻預(yù)插值操作和控制復(fù)雜的圖像坐標(biāo)變換;由dsp完成控制簡(jiǎn)單但運(yùn)算量較大的三角函數(shù)運(yùn)算。
The observation image is often rotated of some angel since the detector ’ s rotation is relative to the hose machine . thus it is necessary to do the real time image - rotation in reverse . it is important for fellow treatment such as observation , target detection and tracking , etc . this image tracker adopts real time electronic canceling image rotation technique by vsb 由于光學(xué)圖像探測(cè)器常常會(huì)相對(duì)于載機(jī)轉(zhuǎn)動(dòng)某一角度而使觀測(cè)圖像發(fā)生旋轉(zhuǎn),因此往往要對(duì)圖像探測(cè)器獲得的目標(biāo)圖像進(jìn)行實(shí)時(shí)反旋轉(zhuǎn)變換,以便更好的人眼觀測(cè)以及對(duì)目標(biāo)圖像的自動(dòng)識(shí)別跟蹤等后續(xù)的圖像處理。