有效焦距 的英文怎麼說

中文拼音 [yǒuxiàojiāo]
有效焦距 英文
effective focal distance
  • : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
  • : Ⅰ名詞(效果; 功用) effect; efficiency; result Ⅱ動詞1 (仿效) imitate; follow the example of 2 ...
  • : Ⅰ形容詞1 (物體受熱失去水分 呈現黃黑色並發硬、發脆) burnt; scorched; charred 2 (著急) worried;...
  • : Ⅰ名詞1 (距離) distance 2 (雄雞、雉等的腿的後面突出像腳趾的部分) spur (of a cock etc )Ⅱ動詞...
  • 有效 : effective; valid; efficacious
  • 焦距 : [光學] focal distance; focal length
  1. In course of auto - focusing, the paper takes the sum of the square of gray difference as focal distance evaluation function to decided that image is in focus or not quickly and put forward an effective auto - focus searching way based on threshold value and curve fitting. these improve speed and precision of auto - focusing

    在自動聚過程中,論文採用了圖象的灰度差分的絕對值之和的平方作為評價函數,解決了是否正確聚的快速判斷問題;採用了一種行之的基於閾值和曲線擬合的自動聚搜索方式,使聚速度和精度都得到了很大的提高。
  2. It adopts 60w radio frequency laser producer and cti mirror system imported from america. the electric scissor lift table realizes precise control of focus. infrared ray - demonstrating aiming device can position the marked object more conveniently. it is a comparatively high - quality marking machine, characterized by its high efficiency and convenience, zero materials, zero pollution, and zero poison. applied fields : marking of many non - metal materials, such as cloth, leather, acrylics, wood, paper, pacage of food, electronics, and medicine, etc

    該機使用美國進口60w射頻激光器和cti振鏡系統,電動升降平臺平實現精確控制,用紅光指示結準器,更方便打標對象的定位,具便捷無需耗材,無毒無污染等特點,是一款性價比較高的標記設備。
  3. We revised frequency spectrum functions by using weighting factor - the distance between direct component and alternating component, and improved the acuity of focus measure curve

    提出用交流分量到直流分量的離作為加權因子對頻譜評價函數進行改進,地提高了對評價曲線的靈敏度。
  4. This paper takes the sum of the square of gray difference as the criteria of evaluation function which image is or not focused and takes an effective searching way of autofocusing based on threshold value and curve fitting. this way enhances effectively speed and precision of autofocusing

    在自動聚過程中,本論文採用了圖像的灰度差分的平方和作為評價函數,解決了自動聚過程中是否正確聚的判斷問題;提出了一種行之的基於閾值和曲線擬合的自動聚搜索方式,使聚速度和精度都得到了很大的提高。
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