We propose a single-pixel imaging(SPI)method to achieve a higher-resolution image via the Hadamard transform matrix.Unlike traditional SPI schemes,this new method recovers images by correlating single-pixel signals wi...We propose a single-pixel imaging(SPI)method to achieve a higher-resolution image via the Hadamard transform matrix.Unlike traditional SPI schemes,this new method recovers images by correlating single-pixel signals with synchronized transformed patterns of Hadamard bases that are actually projected onto the digital micromirror device.Each transform pattern is obtained through the inverse Fourier transform of the pattern acquired by Gaussian filtering of each Hadamard basis in the frequency domain.The proposed scheme is based on a typical SPI experimental setup and does not add any hardware complexity,enabling the transformation of Hadamard matrices and image reconstruction through data processing alone.Therefore,this approach could be considered as an alternative option for achieving fast SPI in a diffraction-limited imaging system,without the need for additional hardware.展开更多
As one of the three main elements of language English,vocabulary is the basis of English learning and plays an important role in English learning.How to improve students’vocabulary learning efficiency and help studen...As one of the three main elements of language English,vocabulary is the basis of English learning and plays an important role in English learning.How to improve students’vocabulary learning efficiency and help students apply vocabulary flexibly has gradually become a research focus in English teaching.This paper focuses on the current situation of students’vocabulary learning and attempts to put forward more scientific,reasonable and effective vocabulary teaching suggestions.展开更多
基金Project supported by the National Key Research and Development Program of China (Grant No.2018YFB0504302)。
文摘We propose a single-pixel imaging(SPI)method to achieve a higher-resolution image via the Hadamard transform matrix.Unlike traditional SPI schemes,this new method recovers images by correlating single-pixel signals with synchronized transformed patterns of Hadamard bases that are actually projected onto the digital micromirror device.Each transform pattern is obtained through the inverse Fourier transform of the pattern acquired by Gaussian filtering of each Hadamard basis in the frequency domain.The proposed scheme is based on a typical SPI experimental setup and does not add any hardware complexity,enabling the transformation of Hadamard matrices and image reconstruction through data processing alone.Therefore,this approach could be considered as an alternative option for achieving fast SPI in a diffraction-limited imaging system,without the need for additional hardware.
文摘As one of the three main elements of language English,vocabulary is the basis of English learning and plays an important role in English learning.How to improve students’vocabulary learning efficiency and help students apply vocabulary flexibly has gradually become a research focus in English teaching.This paper focuses on the current situation of students’vocabulary learning and attempts to put forward more scientific,reasonable and effective vocabulary teaching suggestions.
