Classical estimators, like the short-time Fourier transform or the continuous-wavelet transform optimize either temporal or frequency resolution, or find a suboptimal tradeoff. Here, we introduce a spectral estimator enabling time-frequency super-resolution, called superlet, that uses sets of wavelets ...
we introduce a spectral estimator enabling time-frequency super-resolution, called superlet, that uses sets of wavelets with increasingly constrained bandwidth. These are combined geometrically in order to maintain the good temporal resolution of single wavelets and gain frequency resolution in upper ban...
Frequency superresolution with spectrotemporal shaping of photons. Phys. Rev. Appl. 15, 034071 (2021). Article ADS Google Scholar Download references Acknowledgements L.Z., C.C., and L.F. acknowledge the support from U.S. Department of Energy, Office of Advanced Scientific Computing Research...
The ANPA achieves superresolution and a very low SNR threshold and can be computed and implemented in several efficient ways. First, with FFT and a concurrent Gram-Schmidt procedure using Schur's recursions, the notch periodogram can be computed without any costly eigendecomposition and matrix ...
Fourier inversion is applied to the complete high-frequency frequency spectrum image, so that a super-resolution microscopic image of the sample for observing is obtained. The invention also discloses a frequency-shift super-resolution microscopic imaging device based on the microstructure.刘旭...
2.SPB是空域分支,FRB是频域分支,分别经过FRB和SPB的两个分支信息经过FSIB分支进行信息的融合 3. FRB结构: FreBlock 4. FSIB结构: Fuse Block 二. 表达: 1. For PSNR-oriented model, both pixel-level and frequency-level loss functions are adopted to guide the learning of the network....
3.1. Real-World Super-Resolution 最先进的SR模型依赖于成对HR和LR图像上神经网络的完全监督训练。虽然收集图像不是一项困难的任务,但从两个不同的来源获得成对的图像既困难又麻烦。因此,SR场主要依赖于使用双三次降尺度来生成图像对。虽然这种方法有助于开发有前途的SR模型,但它限制了对真实世界图像的推广,因为...
Super-ResolutionFrequencyEstimationoftheSinusoidalSignalswithUnknownLowpass 系统标签: 带信号频率分辨率eigenanalysis估计estimation 基于特征分析和二次规划的窄带 信号超分辨率频率估计 葛凤翔,万群,刘申建,彭应宁 (清华大学电子工程系高速信号处理和网络传输研究所,北京100084) 摘要:本文研究了窄带信号的超分辨率频率估计.在...
A system for obtaining frequency domain interferometric super-resolution of a target scatterer (10), having a first (12) and a second (14) coherent transceivers, a mutual coherent sub-system and an estimation system. The first and second coherent transceivers are operative to produce a plurality...
fCWT shows that super-resolution can be maintained when analyzing hundreds of high-bandwidth LFP data streams simultaneously. Rodent in vivo electrophysiology data from the Allen Brain Observatory data collection47 were analyzed. During randomly alternating full-field, high- and low-contrast flashes, ...