虹膜變性 的英文怎麼說
中文拼音 [hóngmóbiànxìng]
虹膜變性
英文
degeneration of iris-
Anterior segment dysgenesis including aneroid, peter s anomaly and reign s syndrome
眼前段異變，例如先天性虹膜缺失、 petersanomaly和reigerssyndromeIssue 1. 0, national physical laboratory of uk, 2001. 7 wildes r p, asmuth j c
但是，對于求解虹膜圖像之間的非線性變形，傳統的方法有著明顯的缺陷。The main results in this paper are as follows : ( 1 ) study on starting up performance of thermosyphon : according to the study on the states before and after starting up of thermosyphon with the various filling amount, it is considered that the phase change heat transfer inside the copper - water thermosyphon with a large ratio of length and diameter is not only influenced by the boiling degree of superheat, but also controlled by evaporation and companied with the boiling of the thin liquid film
本文的主要研究結果為： （ 1 ）熱虹吸管啟動性能的研究：通過對從不同充液量、啟動前狀態、內部汽化核心狀態對啟動的影響所進行的試驗研究，認為大長徑比的銅?水熱虹吸管管內相變不僅僅為沸騰，而是以蒸發為主，伴有薄液膜的沸騰。Till now, 4 new mutations - - 2 in glaucoma, 1 in aneroid and 1 in faa with chirp - - that have not been reported in the world medical literature before were identified. a number of mutations that have been previously reported to be occurring in caucasian and japanese patients were also found. the research team expects in the coming one to two years a large amount of important genetic data with clinical values will be obtained
研究人員發現了在三種眼疾中四個新的以及在醫學界未發表過的基因變異，分別為在青光眼病例中發現了兩個新的基因變異，在先天性虹膜缺失及家族性腺瘤性息肉病的先天性視網膜色素上皮肥厚癥中各發現了一個；而一些曾在西方人及日本人中發現的基因變異亦在本港出現。Due to the unique, stable and live physiological properties of the iris and non - invasive to users, most stable and reliable for identification in practical applications of iris - based system, iris recognition is receiving extensive attention and becoming an active topic in biometrics. as an application - oriented research project, iris recognition integrates mathematic, computer science, optics, electronics and physiology etc. based on wavelet transform, aimed to improve the recognition performance, centered at wavelet - based iris feature representation and pattern classification, we review and explore the iris sequence image quality assessment, iris image pre - processing, iris recognition performance evaluation and several other linked topics. we mainly investigate on the principles and application methodology of wavelet transform for iris feature representation and iris pattern classification methods
以小波變換技術為基礎，結合圖像處理和模式識別方法，設計並開發了虹膜圖像採集裝置，建立了虹膜識別演算法測試實驗平臺;重點研究了虹膜識別中的小波變換的應用基礎理論與關鍵實現技術;提出了基於小波局部模極大值的虹膜特徵表示及其多重匹配識別、基於小波多尺度信息的一維和二維虹膜紋理特徵量化表示、基於小波過零點技術的虹膜特徵表示及其規范化的部分hausdorff距離匹配識別，這三類方法能夠有效地提取虹膜特徵;基於自建的演算法測試平臺，對上述三類方法和其他三種國內外比較有影響的基於小波變換的虹膜識別方法進行了定量的性能比較和評價，通過實驗數據分析得到了有意義的結論;最後指出了小波變換技術在虹膜識別領域的研究重點與發展方向。This paperproposes a phase correlation based method for iris image registrationwith sub - pixel accuracy. compared with existing methods, it isinsensitive to image intensity and can compensate to a certain extentthe non - linear iris deformation caused by pupil movement. experimentalresults show that the proposed algorithm has an encouragingperformance
一般而言，在拍攝虹膜圖像過程中，由於拍攝時間的不同或頭部不可避免會輕微晃動，眨眼引起眼皮移動，眼睛隨著光照強度變化的縮放特性等原因，不同時刻拍攝到的各幀虹膜圖像之間不一定是一一對應的。A personal identification system based on iris pattern is composed of iris image acquisition, image preprocessing, feature extraction and matching. others " algorithms of iris location are studied and the deficiencies in them are pointed. considered the brim character and hough transform, two different location methods are put forward
在虹膜定位過程中，分析了前人一些演算法中的不足，結合邊緣特徵和hough變換，對內外邊緣提出了兩種不同的定位方法：對內邊緣，採用邊緣跟蹤和hough變換相結合的方法；對外邊緣，根據外邊緣特性結合梯度運算元找到梯度最大值對應的圓參數。分享友人