鏡頭度測 的英文怎麼說
中文拼音 [jìngtóudùcè]
鏡頭度測
英文
frame gage-
Through fully automatic objective measurements including infrared projecting and eye - ground imaging, and with the help of high differentiation ccd lens and 5 monitor screen, computer can calculate patients diopter objectively and accurately
全自動客覺式測量方式,紅外投射,眼底成像反射,通過高解析度的ccd鏡頭和5英寸顯示屏,計算機客觀精確地計算出患者的屈光度。The phase - shifting interference is a osculant and high precision technology base on the wavelength. because of the different size of object being measured leading to different size of interference wave which brings on asymmetry of the interference wave ineluctably we adopt the zoom lens to improve the measurement precision. considering the interferometer ’ s sensitivity to the vibration the interferometer is often used in the lab which restricts it being used widely
移相干涉術是以光波波長為單位的非接觸式高精度測量技術,為了使大小各異的被測元件產生的干涉條紋尺寸大小一致而引入了變焦鏡頭,從而不可避免地導致干涉條紋亮暗不均勻和照度改變的問題,最終影響測量精度。The high sensitive infrared detection and the telecamera with telescope are installed on the satellite. the infrared detection can detect the enemy missile ’ s infrared radiation and sound alert signal when the missile flies upward after it ’ s launched from on the surface or underwater
衛星上裝有高靈敏度的紅外探測器和帶望遠鏡頭的電視攝像機,在敵方從地面或水下發射導彈后數十秒內,紅外探測器即可探測到導彈上升段飛行期間發動機尾焰的紅外輻射,並發出警報。Brilliancy test charts for projection lenses
放映鏡頭用耀度測試標板Influence of distorsion of digital camera ' s lens on precision of deformation supervising measurement and its remedy method
數碼相機鏡頭畸變對變形監測精度的影響及其改正方法Stores photographic data of up to 7 rolls of 36 exposures on aperture, lens focal length, exposure compensation exposure bracketing increments, shutter speed, flash compensation flash bracketing increments ( including flash on off status ), exposure mode, and metering mode
可以儲存7卷36格菲林的光圈、鏡頭焦距、曝光補償包圍式曝光增減值、快門速度、閃燈補償包圍式閃燈增減值(包括:閃燈開啟開關狀態) 、曝光模式及測光模式等拍攝資料A sil flying head is designed to keep the distance between sil and recording medium in near - field range. a sil optical data storage system is built up when the recording head is combined with sil flying head. meanwhile, using astigmatic focusing error detection technology and twin optical pick - up heads, a novel nontouching nanometer measurement method is developed to measure the flying height of sil, and provides us with a powerful tool to optimize the design of sil fly head
在sil存儲技術研究方面,首先提出一種光學玻璃熱熔加工製作sil的新方法,該方法克服了小半徑球透鏡加工的難題,成功製作出了半球固體浸沒透鏡;設計了sil飛行頭系統,並利用光學頭像散法聚焦誤差檢測原理,設計出一種雙光學頭sil飛行高度測量方案,實現了sil飛行頭飛行高度的測量。Import lens provide clear and vivid picture. led installs around lens, provides equal and stable brightness. allow us to examine greasiness, wrinkle and lines and pores blockage
採用進口鏡片,影像清晰,色彩逼真。採用環繞鏡頭的led同軸冷光源導光,亮度均勻,穩定性好。可檢測表皮的油脂,紋理,皮膚堵塞等狀況。But for some special medium materials, such as liquid crystal display controller pcb, magnifiers must be used to gather images to gain enough precision of inspection for the weak contrast between the basic board and the conductor. the images near the light axes are much cleared than that far away from the light axes, so the images can not be simply segmented by black and white and inspected with the methods of pcb which are based on the black white image
但對於一些特殊介質材料,如液晶顯示控制電路板的檢測,由於基板和導體之間對比度不大,而且為了達到檢測精度,必須採用放大鏡頭進行圖像採集,成像系統光軸附近的圖像成像質量較好,而偏離光軸較遠的圖像質量較差。不能通過簡單二值化來很好地分割圖像,而已有的印刷電路板檢測方法都是建立在二值圖像進行分析的基礎上。Development of the measuring instrument of prismatic power for the helmet viewing window
頭盔面窗棱鏡度測試儀的研製To achieve such a hierarchical structure mining, this paper proposed an efficient shot detection algorithm, developed a novel algorithm for measuring video shot similarity and adopt scene change detection ( scd ) to construct video scene based on color, texture and semantic similarity between shots
摘要為了實現視頻層次結構挖掘,提出了一個有效的視頻鏡頭分割演算法和一種鏡頭相似性度量方法,然後根據鏡頭顏色、紋理和語義相似性採用場景邊界探測演算法構造視頻場景。The relation of tthe ccd sensor imaging resolution and the mtf is gotten. when the mtf of space remote sensing camera is higher and the contrast of object is higher, it can be believed that the resolution of ccd sensor imaging is 1. 6 times of the pixel dimension, in the mean while the mtf decreases 32 %
通過模擬得到了ccd探測器的目標影像的分辨力與ccd像元尺寸的關系,當航天光學遙感相機的mtf較高(模擬中鏡頭的mtf = 1 )且目標為高對比度時,得到ccd探測器的目標影像分辨力是其像元尺寸a的1 . 6倍,其光學調制度傳遞函數mtf下降32的結果。The system is on the basis of fourier optics. by using knife edge as object, cmos sensor as device for image reception, we get edge spread function from the image histogram and use differential operation and fft to achieve mtf of the lens, then its image quality is obtained
本系統以傅立葉光學為依據,以刀口為目標物,以cmos為圖像接收器件,採用獨特的演算法,從刀口圖像的灰度直方圖中獲得其刀口邊緣函數,經微分和fft運算,得到待測鏡頭的mtf ,從而得知其成像品質。Optional optics range from microscopic through wide - angle and telescopic to meet diverse applications requirements. innovative, miniature wearable infrared heads - up displays ir - hud are available, which can augment situational awareness
無論目標尺寸距離和溫度變化如何, s65多種可選的放大顯微廣角鏡頭滿足各種溫度測量要求。Temperature measurement and thermal testing in non - destructive evaluation, research and development, product design validation, quality control, target signature analysis and medical applications
如在檢測極小或遠距離目標時,通過外加的光學鏡頭使得圖像質量解析度和靈敏度不會損失。If it turns out that the lens circuitry needs calibration, then the only way it could possibly have an adverse effect on another eos body in terms of focusing accuracy would be if that particular body was not correctly calibrated, in which case we go back to square one and calibrate that body with a tool lens
如果測試的如果是鏡頭電路需要校準,唯一可能的情況就是按照此鏡頭的對焦精度在其他eos機身(此機身未正確的校準)上使用時會產生相反的效果,這種情況下我們要回過頭來把那個機身和標準鏡頭放在一起重新校準。An approach of event - oriented feature abstracting is presented. we devise and improve some media processing algorithms including : text detection in video frames, audio shot detection, scene detection, evaluation of scene significance
設計和改進了部分媒體處理演算法,包括:視頻幀中的文字探測演算法、音頻鏡頭探測演算法、融合聲像特徵的場景檢測演算法、場景重要程度的評價演算法等。In order to further video analysis, an algorithm of abrupt shot boundary detection based on fuzzy clustering neural network ( fcnn ) is proposed, and it has the advantages of high precision as well as robust to fast move. caption segmentation is the key to the whole process, fcnn can also be utilized to locate caption region, however, the technique is time - consuming. thus an improved projection segmentation method is presented, and the experimental results show that it is simple and practical, and fits for real - time processing
為了便於后續的視頻分析,提出了一種基於模糊聚類神經網路( fcnn )的鏡頭突變檢測演算法,實現視頻鏡頭分割,該演算法具有檢測精度高、對運動穩健等優點;區域定位是字幕提取的關鍵一環,同樣利用fcnn分類器可實現字幕定位,但其運算量大,定位精度不高,因此提出了一種改進的投影分割方法實現字幕區域定位分割,實驗表明其簡單實用,適于實時處理;考慮到單個字元背景相對簡單,為此提出了一種基於單字元的字幕二值化演算法,最終在經由字元分割、二值化及殘留背景像素清除之後,得到了清晰、高質的字幕圖像,字元識別結果證明了這一點。The study on query system using the basketball video fragments as an example is involved in such areas : first, in the condition of " video - flash " and " jump " phenomenon, the " two - level video segmentation algorithm " solves the mistaken detection of the shot edge ; second, the part or the whole video as the result of detection can be well played ; third, the text on the complex background can be detected and fixed, not only the speed but also the right proportion have been improved ; forth, the text can be divided into " regular detection " and " irregular detection "
本課題以籃球比賽的視頻片斷為例,主要進行了以下幾個方面的研究: 1 )針對視頻中的「閃動」和「急跳」現象,提出了「二級鏡頭分割演算法」 ,解決了鏡頭邊緣的誤識別問題。 2 )對所檢測出的視頻片斷或整個視頻流進行播放。 3 )基本解決了復雜背景下文字檢測與定位問題,提高了數字的識別速度與正確率。According to the features of precision, efficiency, inspection dimension and accuracy varying great range, designed closed - loop control system composition of servomechanism and grating to assure system ’ s precision, smooth, efficiency, and to realize the great dimension range measurement ; designed image capture system composition of ccd, automatic variable power lens and self - adaptive lighting, to realize integration of large inspection precision range ; designed electric control and software system to make the inspection convenience and fast. finally, developed the prototype instrument
針對微電子產品視覺檢測的精密、高效、檢測精度和測量范圍變換大的特點,設計了伺服驅動、精密光柵採集組成閉環控制系統以保證運動精密、平穩、高效,和大的尺寸測量范圍;設計了由ccd攝像機、大范圍自動變倍鏡頭和自適應光源組成的圖像採集系統,集不同精度等級的檢測於一體;設計了電氣控制和軟體系統使檢測方便快捷。分享友人