fourier 源码搜索结果, 第97页, Verysource

Fabrication-tolerant Fourier transform spectrometer on silicon w... We report an advanced Fourier transform spectrometer (FTS) on silicon with significant improvement compared with our previous demonstration in [
Multi-reference lens-less Fourier-transform holography with a Gr... Lens-less Fourier-transform holography has been actively studied because of its simple optical structure and its single-shot ... limits its signal to noise ratio. Here, multi-reference lens-less Fourier-transform holography with a Greek-ladder sieve array is ...
Miniature spectrometer based on a Fourier transform spectrometer... We demonstrate a novel type of miniature spectrometer based on a Fourier transform spectrometer (FTS) chip with a dense output array and a commercial photodetector (PD) array. The FTS chip has an output array cycle of 20 μm and consists of 51 Mach–Zehnder ...
基于奇偶函数和Fourier级数的三球面法绝对检验为获得三维面形的绝对分布,提出一种基于奇偶函数和Fourier级数的三球面面形重建方法。该方法在传统三球面法 ...
Fourier-Mellin矩在图像识别中的应用为了验证Fourier-Mellin矩图像识别中的识别能力，本文研究了其在两种坐标下的计算和重建效果、抗噪性试验。在笛卡尔坐标下，图像重建直接计算，不必转换为极坐标，避免极坐标在了转换时产生的几何和计算误差，试验表明：笛卡尔坐标下，Fourier-Mellin矩的重建比极坐标下更精确，并且OFFM矩对噪声有很好的鲁棒性。
基于Fourier-Mellin变换的液晶显示屏显示缺陷检测 ... 对缺陷检测准确率的影响等问题, 提出一种基于Fourier-Mellin变换的LCD显示缺陷检测方法。基本原理是利用Fourier-Mellin变换对标准图像和待测图像进行粗配准, 通过 ...
Fast gradational reconstruction for Fourier ptychographic micros... We develop an improved global reconstruction method for Fourier ptychographic microscopy, a newly reported technique for wide-field and high-resolution microscopic observation. The gradational strategy and graphic processing unit computing are applied to ...
Fourier–Mellin expansion coefficients of scaled pupils ... their expansion coefficients to arbitrary aperture sizes is a useful technique to analyze systems with different pupil sizes. By employing the orthogonal Fourier–Mellin polynomials and their properties, a new formula is established based on the same
激光冲击作用下材料的非Fourier热弹性响应从修正的Fourier热传导定律出发,讨论了激光在一维半无限介质中产生热击波的传播规律。在短时和长时近似下,得到了解析表达式。短时近似解反映非Fourier行为,长时解则退化为经典Fourier热传导定律下的热力耦合波解。
Mask operations in discrete fractional Fourier transform domains... Mask operations in discrete fractional Fourier transform domains with nearly white real valued wide sense stationary output signals

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