| 1. | Design of 2d all - phase image filtering template with window 2维加窗全相位图像滤波模板的设计 |
| 2. | Closure phase imaging 锁相成象 |
| 3. | 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。 |
| 4. | The experimental results show that phase image well overcomes asymmetrical illumination phenomenon and noise is small 实验结果表明,相位图像较好地克服了光照不均现象且噪声较小。 |
| 5. | For the first time , author proposed a quantitative method of evaluate bubble image , and obtained optimal water - gas two - phase image illumination scheme through comparative experiment 首次提出了气泡图像的评价量化方法,并通过对比实验,得到了最佳的水气两相流照明方案。 |
| 6. | After investigating statistical property of the interferogram , the problem of interferogram phase denoising filtering is discussed . the filtering can be aimed at not only the complex image , but also the phase image 分析了干涉图相位统计特性,讨论干涉图相位降噪滤波问题,滤波可以针对干涉复图像进行,也可以直接对干涉相位图进行。 |
| 7. | Chapter three studies the problem of interferometric phase images filtering and estimation , and details spin filtering with curve windows along the fringe tangent orientation and an estimation method based on the technique of joint space - image subspace projection 第三章研究了干涉相位的滤波和估计问题,重点研究了曲线窗口旋滤波算法和子空间正交投影法。 |
| 8. | It increases defect ’ s display definition through infrared image ’ s histogram equalization and computing maximum contrast image , amplitude image and phase image of infrared image sequences , consequently it increases the capability of defect detection 通过红外图像的直方图均衡化,计算红外图像序列的最大对比度图像、幅值图像和相位图像,提高了缺陷的显示清晰度,从而提高了缺陷检测的能力。 |
| 9. | On the basis of the chavacteristic that the interferometric fringes have minimum gradient in the tangent direction , this paper employs the spin filtering with curved windows along the fringe tangent direction for interferometric phase images , and its feasibility and efficiency in keeping the fringe information , suppression the noise and improving the unwrapping precision are proved through comparing the different filtering methods and the corresponding phase unwrapping results 文中根据干涉条纹在切线方向变化最小的特点,利用沿切线方向的曲线窗口对干涉相位图进行旋滤波降噪,并通过对比不同的滤波结果及相应相位解缠结果,证明了旋滤波在保持条纹结构信息,消除噪声和提高相位解缠精度应用中的可行性和有效性。 |
| 10. | Chapter four illustrates the problems of two dimensional phase unwrapping of single and multi - baseline , and again proves the importance of filtering in improving the quality of interferometric phase images and the unwrapping result through comparing the corresponding noisy and filtering phase unwrapping results 第四章研究了单、多基线二维相位解缠问题,通过滤波前后干涉相位图的解缠结果对比和精度分析,再次证明了滤波对于提高干涉相位图质量和改善相位解缠结果的重要性。 |