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Recently, there have been significant advancements in Image Restoration based on CNN and transformer. However, the inherent characteristics of the Image Restoration task are often overlooked in many works. They, instead, tend to focus on…

计算机视觉与模式识别 · 计算机科学 2024-06-25 Dongqi Fan , Ting Yue , Xin Zhao , Renjing Xu , Liang Chang

The ISS (Integral-field Spectrograph System) has been designed as part of the EAGLE Phase A Instrument Study for the E-ELT. It consists of two input channels of 1.65x1.65 arcsec field-of-view, each reconfigured spatially by an image-slicing…

天体物理仪器与方法 · 物理学 2015-05-19 P. R. Hastings , B. Stobie , S. Vives , P. Vola , M. Wells , C. J. Evans

The InfraRed Imaging Spectrograph (IRIS) is a first-light instrument being designed for the Thirty Meter Telescope (TMT). IRIS is a combination of an imager that will cover a 16.4" field of view at the diffraction limit of TMT (4 mas…

METIS, the Mid-infrared ELT Imager and Spectrograph (formerly called MIDIR), is a proposed instrument for the European Extremely Large Telescope (E-ELT), currently undergoing a phase-A study. The study is carried out within the framework of…

In comparison to the radio and sub-millimetric domains, imaging with optical interferometry is still in its infancy. Due to the limited number of telescopes in existing arrays, image generation is a demanding process that relies on…

天体物理仪器与方法 · 物理学 2017-06-28 Julien Woillez , Olivier Lai , Guy Perrin , François Reynaud , Marc Baril , Yue Doug , Pierre Fédou

OSIRIS is a near-infrared integral field spectrograph operating behind the adaptive optics system at W. M. Keck Observatory. While OSIRIS has been a scientifically productive instrument to date, its sensitivity has been limited by a grating…

We present the end-to-end data reduction pipeline for SCALES (Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy), the upcoming thermal-infrared, diffraction-limited imager, and low and medium-resolution integral field…

天体物理仪器与方法 · 物理学 2025-09-22 Athira Unni , Steph Sallum , Peyton Benac , Michael P. Fitzgerald , Max Brodheim , Rosalie McGurk , Andy Skemer , William T. S. Deich

Integrated optics are used to achieve astronomical interferometry inside robust and compact materials, improving the instrument's stability and sensitivity. In order to perform differential phase measurements at the H$\alpha$ line (656.3…

Motivated by the ever increasing pursuit of science with the transient sky (dubbed Time Domain Astronomy or TDA), we are fabricating and will commission a new deployable tertiary mirror for the Keck I telescope (K1DM3) at the W.M. Keck…

A multispectral camera records image data in various wavelengths across the electromagnetic spectrum to acquire additional information that a conventional camera fails to capture. With the advent of high-resolution image sensors and colour…

图像与视频处理 · 电气工程与系统科学 2023-03-06 Noor E Karishma Shaik , Bryce Widdicombe , Dechuan Sun , Sam E John , Dongryeol Ryu , Ampalavanapillai Nirmalathas , Ranjith R Unnithan

The Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy (SCALES) is an instrument being designed to perform direct imaging of exoplanets in the mid-infrared (2-5 {\mu}m) with the Adaptive Optics System of W.M. Keck…

天体物理仪器与方法 · 物理学 2022-09-02 Jialin Li , Andrew J. Skemer , Maaike A. M. van Kooten , Renate Kupke , Nicholas MacDonald

We present a project aimed at studying the structure, dust distribution, ionization state, and kinematics of a representative sample of 22 ULIRGs. The galaxies in the sample undergo different merger phases (they are evenly divided between…

宇宙学与河外天体物理 · 物理学 2015-05-13 M. Garcia-Marin , L. Colina , S. Arribas , A. Monreal-Ibero

In this paper we present the Adaptive Optics Lucky Imager (AOLI), a state-of-the-art instrument which makes use of two well proved techniques for extremely high spatial resolution with ground-based telescopes: Lucky Imaging (LI) and…

Millimetre-wave observations represent an important tool for Cosmology studies. The Line Intensity Mapping (LIM) technique has been proposed to map in three dimensions the specific intensity due to line (e.g. [CII], CO) emission, for…

天体物理仪器与方法 · 物理学 2023-08-29 Usasi Chowdhury , Florence Levy-Bertrand , Martino Calvo , Johannes Goupy , Alessandro Monfardini

The Planetary Systems Imager (PSI) is a proposed instrument for the Thirty Meter Telescope (TMT) that provides an extreme adaptive optics (AO) correction to a multi-wavelength instrument suite optimized for high contrast science. PSI's…

We devise a laser-controlled adaptive optical element which operates intracavity under high intensity radiation. This element substitutes a conventional mechanically deformable mirror and is free of critical heat-sensitive components and…

光学 · 物理学 2018-08-01 Richard Lange , Daniel Kolbe

The Infrared Camera (IRC) is one of two focal-plane instruments on the AKARI satellite. It is designed for wide-field deep imaging and low-resolution spectroscopy in the near- to mid-infrared (1.8--26.5um) in the pointed observation mode of…

Detecting mid-infrared (MIR) radiation has significant astronomical applications, although limited by unsatisfactory MIR detectors. Here we reported on the realization of a MIR up-conversion interferometer based on synthetic long base-line…

天体物理仪器与方法 · 物理学 2024-09-16 Zhao-Qi-Zhi Han , Zheng Ge , Wen-Tao Luo , Yi-Fu Cai , Xiao-Hua Wang , Li Chen , Wu-Zhen Li , Zhi-Yuan Zhou , Bao-Sen Shi

NIRSPEC is a 1-5 micron echelle spectrograph in use on the Keck II Telescope since 1999. The spectrograph is capable of both moderate (R~2,000) and high (R~25,000) resolution observations and has been a workhorse instrument across many…