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Recovering 3D geometry of underwater scenes is challenging because of non-linear refraction of light at the water-air interface caused by the camera housing. We present a light field-based approach that leverages properties of angular…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 Yuqi Ding , Zhang Chen , Yu Ji , Jingyi Yu , Jinwei Ye

In image denoising, deep convolutional neural networks (CNNs) can obtain favorable performance on removing spatially invariant noise. However, many of these networks cannot perform well on removing the real noise (i.e. spatially variant…

Image and Video Processing · Electrical Eng. & Systems 2023-05-09 Wencong Wu , Shijie Liu , Yi Zhou , Yungang Zhang , Yu Xiang

Recently, the dense binary pixel Gigavision camera had been introduced, emulating a digital version of the photographic film. While seems to be a promising solution for HDR imaging, its output is not directly usable and requires an image…

Computer Vision and Pattern Recognition · Computer Science 2015-12-08 Or Litany , Tal Remez , Alex Bronstein

Recently, spiking neural networks (SNNs) have demonstrated substantial potential in computer vision tasks. In this paper, we present an Efficient Spiking Deraining Network, called ESDNet. Our work is motivated by the observation that rain…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Tianyu Song , Guiyue Jin , Pengpeng Li , Kui Jiang , Xiang Chen , Jiyu Jin

Light field (LF) images acquired by hand-held devices usually suffer from low spatial resolution as the limited sampling resources have to be shared with the angular dimension. LF spatial super-resolution (SR) thus becomes an indispensable…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Jing Jin , Junhui Hou , Jie Chen , Sam Kwong

Deep convolutional neural networks perform better on images containing spatially invariant degradations, also known as synthetic degradations; however, their performance is limited on real-degraded photographs and requires multiple-stage…

Computer Vision and Pattern Recognition · Computer Science 2020-10-02 Saeed Anwar , Nick Barnes , Lars Petersson

In the past few decades, to reduce the risk of X-ray in computed tomography (CT), low-dose CT image denoising has attracted extensive attention from researchers, which has become an important research issue in the field of medical images.…

Image and Video Processing · Electrical Eng. & Systems 2021-03-09 Tengfei Liang , Yi Jin , Yidong Li , Tao Wang , Songhe Feng , Congyan Lang

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

Low-light image enhancement remains a challenging task, particularly in the absence of paired training data. In this study, we present LucentVisionNet, a novel zero-shot learning framework that addresses the limitations of traditional and…

Image and Video Processing · Electrical Eng. & Systems 2025-06-25 Muhammad Azeem Aslam , Hassan Khalid , Nisar Ahmed

Multi-organ segmentation in medical image analysis is crucial for diagnosis and treatment planning. However, many factors complicate the task, including variability in different target categories and interference from complex backgrounds.…

Image and Video Processing · Electrical Eng. & Systems 2025-02-10 Lin Zhang , Wenbo Gao , Jie Yi , Yunyun Yang

Capturing visual image with a hyperspectral camera has been successfully applied to many areas due to its narrow-band imaging technology. Hyperspectral reconstruction from RGB images denotes a reverse process of hyperspectral imaging by…

Image and Video Processing · Electrical Eng. & Systems 2020-05-12 Yuzhi Zhao , Lai-Man Po , Qiong Yan , Wei Liu , Tingyu Lin

Speech super-resolution (SSR) aims to predict a high resolution (HR) speech signal from its low resolution (LR) corresponding part. Most neural SSR models focus on producing the final result in a noise-free environment by recovering the…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-11 Junkang Yang , Hongqing Liu , Lu Gan , Yi Zhou

In this paper, we introduce a novel deep neural network suitable for multi-scale analysis and propose efficient model-agnostic methods that help the network extract information from high-frequency domains to reconstruct clearer images. Our…

Computer Vision and Pattern Recognition · Computer Science 2021-05-26 Hyungmin Roh , Myungjoo Kang

Image deraining is a fundamental, yet not well-solved problem in computer vision and graphics. The traditional image deraining approaches commonly behave ineffectively in medium and heavy rain removal, while the learning-based ones lead to…

Image and Video Processing · Electrical Eng. & Systems 2019-08-29 Sen Deng , Mingqiang Wei , Jun Wang , Luming Liang , Haoran Xie , Meng Wang

With the availability of commercial Light Field (LF) cameras, LF imaging has emerged as an up and coming technology in computational photography. However, the spatial resolution is significantly constrained in commercial microlens based LF…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Aupendu Kar , Suresh Nehra , Jayanta Mukhopadhyay , Prabir Kumar Biswas

It is very challenging to reconstruct a high dynamic range (HDR) from a low dynamic range (LDR) image as an ill-posed problem. This paper proposes a luminance attentive network named LANet for HDR reconstruction from a single LDR image. Our…

Computer Vision and Pattern Recognition · Computer Science 2021-09-15 Hanning Yu , Wentao Liu , Chengjiang Long , Bo Dong , Qin Zou , Chunxia Xiao

As a neuromorphic sensor with high temporal resolution, spike camera can generate continuous binary spike streams to capture per-pixel light intensity. We can use reconstruction methods to restore scene details in high-speed scenarios.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Liwen Hu , Ziluo Ding , Mianzhi Liu , Lei Ma , Tiejun Huang

Wireless sensor networks (WSN) acts as the backbone of Internet of Things (IoT) technology. In WSN, field sensing and fusion are the most commonly seen problems, which involve collecting and processing of a huge volume of spatial samples in…

Signal Processing · Electrical Eng. & Systems 2019-06-19 Hui Wu , Zhaoyang Zhang , Chunxu Jiao , Chunguang Li , Tony Q. S. Quek

Recently, Convolution Neural Networks (CNNs) obtained huge success in numerous vision tasks. In particular, DenseNets have demonstrated that feature reuse via dense skip connections can effectively alleviate the difficulty of training very…

Machine Learning · Computer Science 2018-10-04 Mingjie Wang , Jun Zhou , Wendong Mao , Minglun Gong

Low-light image enhancement is an important task in computer vision, essential for improving the visibility and quality of images captured in non-optimal lighting conditions. Inadequate illumination can lead to significant information loss…

Computer Vision and Pattern Recognition · Computer Science 2025-05-15 Ezequiel Perez-Zarate , Oscar Ramos-Soto , Chunxiao Liu , Diego Oliva , Marco Perez-Cisneros