Using square error function and the barycenter algorithm of light intensity as the merit function of focusing and alignment respectively , the system analyzed the images captured by charge coupled device ( ccd ) in the projection screen to produce feedback signals 該系統(tǒng)運(yùn)用數(shù)字圖像處理技術(shù),以方差函數(shù)和光強(qiáng)重心算法分別作為清晰度調(diào)節(jié)和三色和色調(diào)節(jié)的評(píng)價(jià)函數(shù),分析電荷藕合器件( ccd )采集的局部圖像,產(chǎn)生反饋信號(hào)。
The thesis discusses the construction and design of the equipment . the design refer a lot of related advanced technology of multimedia and measurement . it also studies the related principle and function of pickup , disc character , charge coupled device ( ccd ) , image single capture , conversion process 在設(shè)計(jì)過(guò)程中,充分借鑒國(guó)內(nèi)外多媒體技術(shù)和檢測(cè)技術(shù)領(lǐng)域的先進(jìn)技術(shù),對(duì)涉及到的光頭的工作原理、功能及光盤(pán)特性、 ccd光電處理、計(jì)算機(jī)圖像信號(hào)的采集與轉(zhuǎn)換原理等內(nèi)容進(jìn)行了研究。
Charge coupled devices ( ccd ) is a photoelectric device with high performance , which is widely applied in many areas , including astronomical imaging , entertainment and manufacturing , etc . the geometrical measure with ccd has an advantage on achieving high accuracy , dynamic detection and non - contact measurement 電荷耦合器件( ccd )是一種高性能的半導(dǎo)體光電器件,近年來(lái)在天文攝像、消費(fèi)電子、工業(yè)檢測(cè)等領(lǐng)域里得到了廣泛的應(yīng)用。將ccd技術(shù)應(yīng)用于幾何量測(cè)量可以實(shí)現(xiàn)高精度、在線動(dòng)態(tài)檢測(cè)和非接觸測(cè)量等要求。
Digital holography is a new imaging technique that uses a charge coupled device ( ccd ) camera for hologram recording and a numerical method for hologram reconstruction . this paper presents the concept and underlying theory for digital holography and its applications in 3 - d object reconstruction and optical metrology 數(shù)字全息術(shù)以ccd等光電探測(cè)器件記錄全息圖,用數(shù)值方法再現(xiàn)全息圖,它是綜合光學(xué)全息原理和計(jì)算機(jī)技術(shù)、電子技術(shù)以及數(shù)字圖像處理技術(shù)發(fā)展起來(lái)的一種新型全息成像技術(shù)。
In this paper , a kind of calibration technology for indicating instruments which based on the machine vision method is dissertate . using the charge coupled device ( ccd ) , and image process as well as image identify technology to achieve the aim that calibrating the indicating instruments automaticly 如何解決上述問(wèn)題已越來(lái)越引起計(jì)量檢測(cè)部門(mén)的關(guān)心,本文論述了基于機(jī)器視覺(jué)方法的指示儀表檢測(cè)技術(shù),以ccd攝像機(jī)為基礎(chǔ),通過(guò)圖像處理和圖像識(shí)別技術(shù)進(jìn)行指示儀表的自動(dòng)校準(zhǔn)。