Acoustic holography has attained a high lateral resolution but a poor axial resolution.
感音全息摄影技术已经取得了较高的横向分辨率,但轴向分辨率并不理想。
Meanwhile, the existence of the acoustic attenuation coefficient benefits the axial resolution.
同时,声衰减系数的存在有利于轴向分辨率的提高。
With the intensity distribution function of Gaussian beam, the lateral and axial resolution expressions were deduced.
结合高斯光束的强度分布函数,推导了横向与轴向分辨率的表达式。
The most adopted approach for achieving high axial resolution in OCT is using a light source with a broaden bandwidth.
提高光学相干层析成像术轴向分辨力的方法主要基于带宽光源技术。
The digital beam forming technique can improve the contrast, lateral and axial resolution of ultrasound imaging equipment.
数字声束形成技术可以提高超声成像设备的对比分辨力、横向和纵向分辨力。
The experimental results show that the axial resolution of confocal microscope can be improved by 17.8 %, in the case of a finite-sized detector.
实验结果说明,在探测器为有限大小的情况下,利用该滤波器可以使共焦显微系统的纵向分辨率提高17.8%。
The effect of various factors on axial resolution in confocal scanning microscopy is discussed, and some preliminary experimental results are given.
着重分析了共焦扫描术中影响轴向分辨率的各种因素,并给出了初步的实验结果,同时讨论了优化轴向分辨率的可能途。
Axial resolution in optical coherence tomography (OCT) imaging is determined by the coherence length of light source and the beam-focusing condition.
其轴向分辨率由光源带宽和探测光束的聚焦条件共同决定。
The experimental results indicate that mode competitive effects of orthogonal polarized lights can effectively improve axial resolution of scan microscope.
实验结果表明,利用偏振态相互垂直的光之间的模竞争效应可以有效地提高扫描显微镜的轴向分辨率。
This implicitly indicates that in OCT, the axial resolution is de-coupled from the transverse resolution, which is dependent on the sample arm imaging optics.
这暗示了在OCT中,轴向分辨率从横向分辨率开始解耦,该过程依赖于样品臂的成像光学技术。
For a confocal microscope with a finite-sized detector, the improvement in axial resolution by a phase-only filter with two zones was experimentally investigated.
针对采用有限大小探测器的共焦显微系统,利用两区相位型滤波器提高系统的纵向分辨率。
The results show that the digital confocal microscopy has high resolution improve ratio, and can restore lateral and axial resolution of thick specimen effectively.
研究结果表明,数字共焦显微技术具有很高的分辨率改善比,可以有效地恢复厚样本横向和轴向分辨率。
In this thesis we propose an alternative method to increase the axial resolution of OCT by combining coherence gating with superresolution through an appropriate phase filter.
本文提出一种将光学超分辨术与OCT相干门有机结合的方法来提高OCT的轴向分辨率。
The numerical results show that the transverse resolution, the axial resolution, and the intensity of the spot increase as the rate of fluorescent wavelength to illustrated wavelength increases.
研究了不同荧光波长对双光子荧光共焦显微镜横向、纵向分辨率和光斑强度的影响。
Objective To investigate the practical value of axial plus coronal scanning high resolution ct (HRCT) in the diagnosis of nasal bone fracture.
目的探讨高分辨率CT (HRCT)冠状及横断位扫描在鼻骨骨折诊断中的应用价值。
Objective To assess the value of axial high resolution computed tomography(HRCT)scans in the diagnosis of the large vestibular aqueduct malformation.
目的评价横轴位高分辨率CT扫描对前庭导水管扩大畸形的诊断价值。
The transverse resolution of two zone leaky annular pupil filter increases with the central transmissivity decreasing, and in common cases axial resol.
二区漏光环型光瞳滤波器横向分辨率随中心透过率的减小而增大,一般情况下轴向分辨率随中心透过率的增大而增大。
Numerical results show that this new kind of pupil filters can realize not only axial superresolution, but also not influence transverse resolution.
模拟结果表明,这种新型滤波器不仅可以提高高数值孔径物镜的纵向分辨率,同时基本上不影响横向分辨率。
The invention has the advantages of simple structure and low processing cost and can simultaneously improve the transverse and axial processing resolution of an original system.
本发明结构简单、加工成本低,可同时提高原系统的横向和轴向加工分辨率。
The second kind of pupil filter can increase the axial and transverse resolution at the same time, which is applicable in 3 dimensional imaging in confocal microscopy.
第二种滤波器在提高系统轴向分辨率的同时,又能提高其横向分辨率,适用于系统的三维成像。
The second kind of pupil filter can increase the axial and transverse resolution at the same time, which is applicable in 3 dimensional imaging in confocal microscopy.
第二种滤波器在提高系统轴向分辨率的同时,又能提高其横向分辨率,适用于系统的三维成像。
应用推荐