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- Noise filtering for interferometric phase image, is one of key problems in InSAR imaging. 摘要干涉相位图的降噪滤波,是干涉合成孔径雷达成像中必须的步骤之一。
- Noise reduction for interferometric phase images in synthetic aperture sonar(SAS) is addressed in this paper. 讨论了合成孔径声纳的干涉相位图降噪问题。
- Using the interferometric phase images gener-ated with simulated data,it is found that only the morphological and modified median filtering algorithm and the vector-filtering algorithm can prod... 通过相位图残留点数和高度图方差对比发现,向量滤波法性能最优,是一种快速有效的噪声抑制方法。
- interferometric phase image 干涉相位图
- Based on geometrical condition of relative height measure, the relations between relative height accuracy and interferometric phase error are deduced. 基于相对测高几何,推导了相对测高精度与干涉相位误差的关系式;
- The influence of baseline decorrelation imposing on interferometric phase error is analyzed in detail,which is an important influence of DEM error. 对干涉车轮和钟摆编队的测高性能、对测高精度与基线矢量的关系进行仿真分析;其次与两种经典近似几何关系下的测高精度分析进行对比。
- The main difficulty in phase unwrapping stems from the noise and residuals in the phase image. 然而,由于磁共振成像噪声比较严重,而且组织交界区域附近相位本身就存在突变,造成解缠绕的精度下降。
- The simulation results show that the phase unwrapping accuracy via multibaseline data fusion is higher than that of direct phase unwrapping of large baseline interferometric phase. 模拟结果表明,经过多基线数据融合的干涉相位展开精度要远远大于长基线干涉相位的直接展开精度。
- MIP and VRT reconstructions were made using diastolic phase image data in all cases, among them 30 cases underwent conventional coronary angiography. 所有患者用舒张期增强扫描重建像行最大密度投影(MIP)重建及容积漫游技术(VRT)重建,其中30例与常规冠状动脉造影对照。
- The abnormal initial contractions in both planar and tomographic phase image were compared with the sites of accessory pathway (ACP) based on ECG and radiofrequency ablation . 用平面和断层时相分析对预激综合征病人进行旁道定位,并分别同射频消融术所证实的旁道定位与心电图的旁道定位对比。
- Interferometric phase estimation 干涉相位估计
- In this paper, an algorithm of generating INSAR unwrapped phase image from SAR single-look complex images is presented. 本文提出了干涉合成孔径雷达(INSAR)从SAR单视复图像到非模糊相位图的一种实用数据处理方法。
- Decomposition of interferometric phase 干涉相位分解
- Equilibrium radionuclide angiography(ERNA) phase image analysis was performed after operation. Ventricular activation sequence and biventricular contraction synchrony during RVS and RVA pacing were compared with those of the intrinsic rhythm. 术后进行核素心室显像位相分析 ,对比自身心律与RVA和RVS起搏时心室激动顺序和双心室同步性的差异。
- Early HCC frequently shows rowing tense on hepatocyte phase image and displastic nodule not show rowing tense on MR for hepatocyte images. 早期HCC肝细胞成像常常出现动态时相,而发育不良结节不显示动态时相。
- With a moving window, we first get the structure similarities of the both phase image visual features and construct the basic probability assignment function (BPAF) necessary for D-S evidence theory. 通过对不同试验区、不同证据组合方式以及算法间的比较实验表明,相对单一特征检测,该算法有效地提高了检测的精度。
- While on CT venous(CTV) phase imaging,medulla veins and central vein arranged radially could be detected on all cases. 静脉期脑CT血管造影15例均清晰显示放射状排列的髓静脉及中央静脉,整个形态似海蛇头。
- interferometric phases unwrapping 干涉相位展开
- The phase images and simultaneous topographies acquired by this circuit were presented. 通过实验获得了一些样品的相位像。
- Only 3 cases got artery phase images and were diagnosed as SHCC in control while 7 cases got optimal artery phase by using FTB technique. 对照组仅 3例获得较好动脉期 ,确诊小肝癌 3例 ; 实验组所有病例均获得最佳动脉期 ,检出小肝癌 7例 ,1 0例确诊的小肝癌均得到手术及病理的证实。