弦上位置 的英文怎麼說
中文拼音 [xiánshàngwèizhì]
弦上位置
英文
chord station-
The proposed method accurately and fleetly locates the inner boundary of the iris by means of detecting the diameter of the pupil in the binary image. then, the outer boundary is detected by a deformable circular template
它利用了虹膜瞳孔的生理特徵,在二值化后的虹膜圖像中尋找水平最長弦,從而定位瞳孔的大致位置,在此基礎上經過進一步的細化提取準確的瞳孔中心位置。The sinusoidal gray fringes are simulated by computer and projected on the object by the liquid - crystal light valve in this method, in with the phase - shifting is controlled by computer. then the deformed fringes modulated by object is collected by ccd camera, so optical 3 - d phase measurement for large - scale object can be realized
( b )針對目前大尺寸物體光學位相測量輪廓中存在的問題,提出一種用液晶光閥把模擬正弦分佈及多幅有一定相移量的灰度條紋投影到大尺寸三維物體上,通過控制計算機在同一位置進行窗口變換,直接實現相移,進行物體的光學位相三維面形測量。From the perspective of an observer in the spacetime, boundary strings of different thicknesses appear to be strings ( all of them thin ) at different radial locations
以位於時空中觀察者的觀點而言,位於邊界上具有各種粗細的弦,看起來像是位於不同徑向位置上的弦(全都是細弦) 。
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