point spread的意思

point spread中文翻譯：

分差；讓分

相似詞語短語

cover point spread───覆蓋點擴展

spread───vt.傳播，散布；展開；伸展；鋪開；n.傳播；伸展；vi.傳播；伸展；adj.伸展的

spread operator───擴散算子

spread knowledge───傳播知識

spread over───分散，傳開；傳遍，延續；遍布于…

spread down───延伸；蔓延

spread collar───展開領

spread into───蔓延到……；傳播到……

spread out───展開；鋪開；伸張；伸展，延長; 分散; 鋪設; 衍

雙語使用場景

The point spread function consists of prime point spread function and scatter point spread function.───其點擴展函數分為一次射線點擴展函數和散射點擴展函數兩部分。

point spread function, which was necessary for the deconvolution, was obtained in our experimental measurement.───實驗測量得到了解卷積所必需的點擴展函數。

That's an increase from the 0.48 percentage point spread on January 4.───這是繼1月4日的0.48個百分點之上的進一步擴大。

Mind not to the point spread, penetrate into the sky, the sk. . .───思緒不著邊際四處蔓延，滲透到蒼穹，天空中飛舞的是一片片緒言。

Finally, the question of the point-spread function's unknown parameter solver is settled by using the precision rule and the max-track way.───采用清晰度準則及最大值跟蹤法解決點擴散函數的未知參數求解問題。

Point Spread Function( PSF ) estimation, an essential part for image restoration, has no accurate estimation algorithm at present.───點擴展函數估計是圖像復原的重要內容，目前還沒有精確估計的算法。

Blind image restoration is to recover the original image form the observed degraded image with unknown the Point Spread Function (PSF).───盲圖像恢復就是在點擴散函數未知情況下從降質觀測圖像恢復出原圖像。

The point spread functions under various ellipticity errors and their effects on a round object's reconstruction are obtained.───得到了不同橢圓度偏差下系統傳遞函數的變化，及其對圓形物成像重建的影響。

The key problem in image restoration is to get the point spread function of motion-blurred images and the knowledge about noise.───由運動模糊圖像復原出原圖像關鍵問題是獲取點擴展函數和噪聲信息，其中噪聲通常假設為高斯白噪聲。

英語使用場景

Fluorescence power transfer function, three dimensional point spread function (3D PSF) and three dimensional optical transfer function (3D OTF) for the various fluorescent wavelength are calculated.

Through exploration of the point spread function of the blur of uniform linear motion, a novel method based on frequency-domain algorithm for identification of motion-blur direction was presented.

The imaging equations are derived based on point spread function, the influence of detector on resolution is simulated, and the optimum pinhole radius is proposed.

For infrared optical systems a point spread function is calculated in terms of the spot diagram obtained through geometrical ray trace or the theory of Kirchhoff diffraction.

Point spread function (PSF) and Strehl ratio (SR) are used to evaluate the imaging quality of the system with different defocus parameters.

Based on Fourier optical theory, PSF(Point Spread Function)and OTF(Optical Transfer Function)are introduced. Then the mechanism why digital image is focused in optics imaging system is also analyzed.

A new method is proposed for estimating the PSF(point spread function) values of turbulence from turbulence degraded images.

When point spread function(PSF)is not known or only partially determined, restoration of the degraded images is called blind image restoration (BIR).

This paper used Gaussian function as point spread function, applying in inverse filtering algorithm and Wiener filtering algorithm and improving them.