16 papers · ranked by Valyu relevance
Qian Xue, Yang Yang, Wenkai Ma, Hanqiu Zhang + 5 more
'Xinzheng Lan' 'Liang Gao' 'Jianbing Zhang' 'Jiang Tang'] Title: Abstract Miniaturized computational spectrometers have emerged as a promising strategy for miniaturized spectrometers, which breaks the compromise between footprint and performance in traditional miniaturized spectrometers by introducing computational…
Paul Gattinger, Ivan Zorin, Christian Rankl, Markus Brandstetter + 1 more
'Yuji Matsuura'] In this contribution, we present a high-speed, multiplex, grating spectrometer based on a spectral coding approach that is founded on principles of compressive sensing. The spectrometer employs a single-pixel InGaAs detector to measure the signals encoded by an amplitude spatial light modulator…
Marcel Henrique Trabuco, Marcus Vinícius Chaffim Costa, Francisco Assis de Oliveira Nascimento
'Francisco Assis de Oliveira Nascimento'] Background Surface electromyographic (S-EMG) signal processing has been emerging in the past few years due to its non-invasive assessment of muscle function and structure and because of the fast growing rate of digital technology which brings about new solutions and…
Joaquín García-Sobrino, Joan Serra-Sagristà, Joan Bartrina-Rapesta
The Infrared Atmospheric Sounding Interferometer (IASI), implemented on the MetOp satellite series, represents a significant step forward in atmospheric forecast and weather understanding. The instrument provides infrared soundings of unprecedented accuracy and spectral resolution to derive humidity and atmospheric…
Longqian Huang, Ruichen Luo, Xu Liu, Xiang Hao
The goal of spectral imaging is to capture the spectral signature of a target. Traditional scanning method for spectral imaging suffers from large system volume and low image acquisition speed for large scenes. In contrast, computational spectral imaging methods have resorted to computation power for reduced system…
Bingrui Wang, Zhaopeng Xie, Xingang Zhang, Sedat Akleylek
Spectral shaping codes are modulation codes widely used in communication and data storage systems. This research enhances the algorithms employed in constructing spectral shaping codes for hardware implementation. We present a parallel scrambling calculation with a time complexity of O(1). Second, in the minimum…
Guoliang Tang, Zi Wang, Shijie Liu, Chunlai Li + 2 more
'Marc Brecht'] We propose a real-time hyperspectral video acquisition system that uses coded slits. Conventional imaging spectrometers usually have scanning mechanisms that reduce the temporal resolution or sacrifice the spatial resolution to acquire spectral information instantly. Recently, computational spectral…
Zhijie Cao, Siwei Sun, Jingxuan Wei, Yong Liu
A spectro-polarimetric imaging approach leverages optical rotatory dispersion in natural crystals to encode spectral information into polarization states. The system demonstrates effectiveness in laboratory and outdoor field experiments, showing potential for biological microscopy, machine vision, and remote sensing…
Tongyang Xu, Izzat Darwazeh
Signal waveform is the basic physical layer element that fundamentally determines the most important key performance indicator in communication systems, namely spectral efficiency. Traditional waveforms rely on orthogonal Nyquist shaping but result in restricted spectral efficiency. Non-orthogonal waveforms have been…
Manoranjan Paul, Rui Xiao, Junbin Gao, Terry Bossomaier + 1 more
'Chuan-Chin Chiao'] A Hyperspectral (HS) image provides observational powers beyond human vision capability but represents more than 100 times the data compared to a traditional image. To transmit and store the huge volume of an HS image, we argue that a fundamental shift is required from the existing “original pixel…
Forrest Simon Webler, Manuel Spitschan, Marilyne Andersen, Jiayi Ma
Reconstruction algorithms are at the forefront of accessible and compact data collection. In this paper, we present a novel reconstruction algorithm, SpecRA, that adapts based on the relative rarity of a signal compared to previous observations. We leverage a data-driven approach to learn optimal encoder-array…
Yan Xu, Chunlai Li, Shijie Liu, Guoliang Tang + 3 more
Herein, we propose a system for a snapshot video hyperspectral imaging method based on a uniformly distributed-slit array (UDA) coding plate that not only effectively improves the scanning speed of spectrometers but also achieves a high spectral fidelity of snapshot videos. A mathematical model and optical link…
Michael Windisch, Jakob Wassermann, Monica Leba, Olimpiu Stoicuta + 1 more
In communication technologies such as digital watermarking, wireless sensor networks (WSNs), and visual light communication (VLC), error-correcting codes are crucial. The Enhanced Hadamard Error-Correcting Code (EHC), which is based on 2D Hadamard Basis Images, is a novel error correction technique that is presented in…
Milena Arruda, Andresso da Silva, Francisco de Assis, Alessandro Giuliani
'Alessandro Giuliani'] The digital signal processing approaches were investigated as a preliminary indicator for discriminating between the protein coding and non-coding regions of DNA. This is because a three-base periodicity (TBP) has already been proven to exist in protein-coding regions arising from the length of…
Erick Lamilla, Christian Sacarelo, Manuel S. Alvarez-Alvarado, Arturo Pazmino + 4 more
'Arturo Pazmino' 'Peter Iza' 'Yichuang Sun' 'Haeyoung Lee' 'Oluyomi Simpson'] Based on orbital angular momentum (OAM) properties of Laguerre-Gaussian beams LG( $p,ℓ$), a robust optical encoding model for efficient data transmission applications is designed. This paper presents an optical encoding model based on an…
Nithin Nagaraj, Arun Somani
Error detection is a fundamental need in most computer networks and communication systems in order to combat the effect of noise. Error detection techniques have also been incorporated with lossless data compression algorithms for transmission across communication networks. In this paper, we propose to incorporate a…