English
Related papers

Related papers: Hinode's SP and G-band co-alignment

200 papers

Thin film lithium niobate is of great recent interest and an understanding of periodically poled thin-films is crucial for both fundamental physics and device developments. Second-harmonic (SH) microscopy allows for the non-invasive…

Applied Physics · Physics 2019-10-23 Michael Ruesing , Jie Zhao , Shayan Mookherjea

We study the extent to which Milne-Eddington inversions are able to retrieve and characterize the magnetic landscape of the solar poles from observations by the spectropolarimeter onboard Hinode. In particular, we evaluate whether a…

Solar and Stellar Astrophysics · Physics 2023-07-05 Rebecca Centeno , Ivan Milić , Matthias Rempel , Nariaki V. Nitta , Xudong Sun

We image simultaneously the geometric, electronic and magnetic structure of a buckled iron bilayer film that exhibits chiral magnetic order. We achieve this by combining spin-polarized scanning tunneling microscopy and magnetic exchange…

To design a novel method for segmenting the image using Cubic Spline Interpolation and compare it with different techniques to determine which gives an efficient data to segment an image. This paper compares polynomial least square…

Image and Video Processing · Electrical Eng. & Systems 2018-03-14 Chetan Sai Tutika , Charan Vallapaneni , Karthik R , Bharath KP , N Ruban , Rajesh Kumar Muthu

This work proposes a novel SLAM framework for stereo and visual inertial odometry estimation. It builds an efficient and robust parametrization of co-planar points and lines which leverages specific geometric constraints to improve camera…

Robotics · Computer Science 2020-09-29 Xin Li , Yanyan Li , Evin Pınar Örnek , Jinlong Lin , Federico Tombari

Optics naturally provides us with some powerful mathematical operations. Here we experimentally demonstrate that during reflection or refraction at a single optical planar interface, the optical computing of spatial differentiation can be…

Hyperspectral images (HSIs) have been widely used in a variety of applications thanks to the rich spectral information they are able to provide. Among all HSI processing tasks, HSI denoising is a crucial step. Recently, deep learning-based…

Image and Video Processing · Electrical Eng. & Systems 2022-02-16 Zhiqiang Wang , Zhenfeng Shao , Xiao Huang , Jiaming Wang , Tao Lu , Sihang Zhang

We use a fiber based double slit Young interferometer for studying the far-field spatial distribution of the two-photon coincidence rate (coincidence pattern) for various quantum states with different degree of spatial entanglement. The…

Quantum Physics · Physics 2015-06-18 Ivan B. Bobrov , Dmitry A. Kalashnikov , Leonid A. Krivitsky

Surgical instrument segmentation is extremely important for computer-assisted surgery. Different from common object segmentation, it is more challenging due to the large illumination and scale variation caused by the special surgical…

Computer Vision and Pattern Recognition · Computer Science 2020-05-25 Zhen-Liang Ni , Gui-Bin Bian , Guan-An Wang , Xiao-Hu Zhou , Zeng-Guang Hou , Xiao-Liang Xie , Zhen Li , Yu-Han Wang

Hyperspectral image (HSI) denoising is a crucial preprocessing procedure to improve the performance of the subsequent HSI interpretation and applications. In this paper, a novel deep learning-based method for this task is proposed, by…

Computer Vision and Pattern Recognition · Computer Science 2018-08-14 Qiangqiang Yuan , Qiang Zhang , Jie Li , Huanfeng Shen , Liangpei Zhang

Classical splines feature prominently in approximation theory and numerical analysis, while GKM theory arises in the study of equivariant cohomology. More recently, generalized splines have been studied which simultaneously generalize both…

Combinatorics · Mathematics 2025-11-04 Kyle Stoltz

In this paper, we formally investigate two mathematical aspects of Hermite splines which translate to features that are relevant to their practical applications. We first demonstrate that Hermite splines are maximally localized in the sense…

Numerical Analysis · Mathematics 2019-02-11 Julien Fageot , Shayan Aziznejad , Michael Unser , Virginie Uhlmann

This paper solves the Sparse Photometric stereo through Lighting Interpolation and Normal Estimation using a generative Network (SPLINE-Net). SPLINE-Net contains a lighting interpolation network to generate dense lighting observations given…

Computer Vision and Pattern Recognition · Computer Science 2019-10-10 Qian Zheng , Yiming Jia , Boxin Shi , Xudong Jiang , Ling-Yu Duan , Alex C. Kot

We present the wavelength calibration for the lenslet-based Integral Field Spectrograph (IFS) that serves as the science instrument for the Gemini Planet Imager (GPI). The GPI IFS features a 2.7" x 2.7" field of view and a 190 x 190 lenslet…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 Schuyler G. Wolff , Marshall D. Perrin , Jérôme Maire , Patrick J. Ingraham , Fredrik T. Rantakyrö , Pascale Hibon , with the GPI team

I discuss 3 widely applicable aspects concerning calibration of the near infrared adaptive optics integral field spectrometer SINFONI: (1) the accuracy with which one needs to quantify the PSF and how this might be achieved in practice; (2)…

Astrophysics · Physics 2015-06-24 R. Davies

The integration of hyperspectral imaging (HSI) and Light Detection and Ranging (LiDAR) data provides complementary spectral and spatial information for remote sensing applications. While previous studies have explored the role of band…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Judy X Yang , Jing Wang , Zhuanfeng , Li , Chenhong Sui Zekun Long , Jun Zhou

Invariant-based models for incompressible isotropic hyperelasticity are typically formulated as functions of the first and second invariants, $W = W(\bar{I}_1, \bar{I}_2)$. A widely used class of models employs separable representations of…

Computational Engineering, Finance, and Science · Computer Science 2026-04-14 Simon Wiesheier , Miguel Angel Moreno-Mateos , Paul Steinmann

We derive an analytic expression for the instrument profile of a slit spectrograph, also known as the line spread function. While this problem is not new, our treatment relies on the operatorial approach to the description of diffractive…

Optics · Physics 2015-06-22 R. Casini , A. G. de Wijn

The discovery of hidden spin polarization (HSP) in centrosymmetric nonmagnetic crystals, i.e., spatially distributed spin polarization originated from local symmetry breaking, has promised an expanded material pool for future spintronics.…

Materials Science · Physics 2023-01-04 Weizhao Chen , Mingqiang Gu , Jiayu Li , Panshuo Wang , Qihang Liu

The interference between optical beams of different polarizations plays a fundamental role in reproducing the optical analog of the electron spin weak measurement. The extraordinary point in optical weak measurements is represented by the…

Optics · Physics 2015-06-23 Manoel P. Araujo , Stefano De Leo , Gabriel G. Maia