Search Results for author: Dongmei Cai

Found 7 papers, 1 papers with code

Compressive Shack-Hartmann Wavefront Sensor based on Deep Neural Networks

no code implementations20 Nov 2020 Peng Jia, Mingyang Ma, Dongmei Cai, Weihua Wang, Juanjuan Li, Can Li

However if there exists strong atmospheric turbulence or the brightness of guide stars is low, the accuracy of wavefront measurements will be affected.

Compressive Sensing Image Deconvolution +1

Data--driven Image Restoration with Option--driven Learning for Big and Small Astronomical Image Datasets

no code implementations7 Nov 2020 Peng Jia, Ruiyu Ning, Ruiqi Sun, Xiaoshan Yang, Dongmei Cai

In recent years, developments of deep neural networks and increments of the number of astronomical images have evoked a lot of data--driven image restoration methods.

Image Restoration

PSF--NET: A Non-parametric Point Spread Function Model for Ground Based Optical Telescopes

no code implementations2 Mar 2020 Peng Jia, Xuebo Wu, Yi Huang, Bojun Cai, Dongmei Cai

Assuming point spread functions induced by the atmospheric turbulence with the same profile belong to the same manifold space, we propose a non-parametric point spread function -- PSF-NET.

Image Restoration

Point Spread Function Modelling for Wide Field Small Aperture Telescopes with a Denoising Autoencoder

no code implementations31 Jan 2020 Peng Jia, Xiyu Li, Zhengyang Li, Weinan Wang, Dongmei Cai

For wide field small aperture telescopes, the point spread function is hard to model, because it is affected by many different effects and has strong temporal and spatial variations.

Denoising

Solar Image Restoration with the Cycle-GAN Based on Multi-Fractal Properties of Texture Features

no code implementations29 Jul 2019 Peng Jia, Yi Huang, Bojun Cai, Dongmei Cai

Texture is one of the most obvious characteristics in solar images and it is normally described by texture features.

Image Restoration

Perception Evaluation -- A new solar image quality metric based on the multi-fractal property of texture features

1 code implementation24 May 2019 Yi Huang, Peng Jia, Dongmei Cai, Bojun Cai

Next-generation ground-based solar observations require good image quality metrics for post-facto processing techniques.

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