準勻質膜 的英文怎麼說

中文拼音 [zhǔnyúnzhí]
準勻質膜 英文
quasi-homogenous membrane
  • : Ⅰ名詞1 (標準) standard; guideline; criterion; norm 2 (目標) aim; target Ⅱ動詞1 (依據; 依照)...
  • : Ⅰ形容詞(均勻) even Ⅱ動詞1. (使均勻) even up; divide evenly 2. (分出一部分) spare
  • : Ⅰ名詞1 (性質; 本質) nature; character; essence 2 (質量) quality 3 (物質) matter; substance;...
  • : 名詞1. [生物學] (像薄皮的組織) membrane 2. (像膜的薄皮) film; thin coating
  1. At first we improve the methods of iris image preprocessing, including an efficient arithmetic of evaluation iris images, an improving method of locating iris, calibrating iris image by the translation of coordinate and the circular shift of code, a eatimate of the background illumination by bicubic spline, and the image enhancement by the dual tree complex wavelet transform. next we designed the recognition arithmetic based on the location of the local maxima of the wavelet transform modulus. in the thesis lots of simulation are performed by means of matlab and visual c + +

    首先改進了虹預處理方法,實現了一種快速高效的虹量評價演算法;設計了一種改進的兩步虹定位演算法,確的定位了虹的內外邊界;利用坐標轉換和編碼的循環移位實現了對虹圖像的配;利用雙三次樣條函數擬合虹圖像背景,去除了非均光照對虹識別的影響;使用二分樹復數小波方法增強了虹圖像的對比度;在識別演算法方面,本文設計了一種「基於小波模極值點位置的虹識別演算法」 。
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