自由起發密度 的英文怎麼說

中文拼音 [yóu]
自由起發密度 英文
free-rising density
  • : Ⅰ代詞(自己) self; oneself; one s own Ⅱ副詞(自然;當然) certainly; of course; naturally; willin...
  • : causereason
  • : 起Ⅰ動詞1 (站起; 坐起) rise; get up; stand up 2 (取出; 取走) draw out; remove; extract; pull 3...
  • : 名詞(頭發) hair
  • : Ⅰ名詞1 (秘密) secret 2 [紡織] (密度) density 3 (姓氏) a surname Ⅱ形容詞1 (距離近; 空隙小)...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • 自由 : freedomliberty
  1. Abstract : in this paper, a variety of encryption methods for optical image security are comparatively studied. according to the different method, the encrypted image can be transformed into white or color noise. the encryption phase can be the random phase or the chaotic sequence as well as the calculated result by used of the phase retrieval algorithm. the image quality and the correlative recognition ability of decrypted image are affected by the different part of the decryption phase and the amount of high frequency or low frequency used in the process of decryption

    文摘:本文分析比較了多種實現光學圖象相位加的方法,現不同方法獲得的加圖象有不同類型的噪音分佈.無論加相位是隨機相位模板、渾沌序列的相位列陣,還是用相位重構迭代演算法計算的結果,它們都能到加圖象的功能.解圖象的質量或被相關識別的能力與解過程中所使用正確解相位的不同部分以及高低頻分量多少有關,且其依賴程不同的加方法身決定
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