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Recently, there has been increased attention towards 3D imaging using single-pixel single-photon detection (also known as temporal data) due to its potential advantages in terms of cost and power efficiency. However, to eliminate the…

计算机视觉与模式识别 · 计算机科学 2024-02-28 Tingqin Lai , Xiaolin Liang , Yi Zhu , Xinyi Wu , Lianye Liao , Xuelin Yuan , Ping Su , Shihai Sun

Single image deraining (SID) in real scenarios attracts increasing attention in recent years. Due to the difficulty in obtaining real-world rainy/clean image pairs, previous real datasets suffer from low-resolution images, homogeneous rain…

计算机视觉与模式识别 · 计算机科学 2022-11-22 Wei Li , Qiming Zhang , Jing Zhang , Zhen Huang , Xinmei Tian , Dacheng Tao

Accurate 3D volumetric mapping is critical for autonomous underwater vehicles operating in obstacle-rich environments. Vision-based perception provides high-resolution data but fails in turbid conditions, while sonar is robust to lighting…

机器人学 · 计算机科学 2026-03-17 Ivana Collado-Gonzalez , John McConnell , Brendan Englot

The challenges in recovering underwater images are the presence of diverse degradation factors and the lack of ground truth images. Although synthetic underwater image pairs can be used to overcome the problem of inadequately observing…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Zhenwei Zhang , Haorui Yan , Ke Tang , Yuping Duan

This paper presents a novel approach to reconstruct complete 3D deformable models over time by a single depth camera. These are the steps employed for deforming objects from single depth camera. The partial surfaces reconstructed from…

计算机视觉与模式识别 · 计算机科学 2017-08-31 Vamshhi Pavan Kumar Varma Vegeshna

We propose a deep learning method for single image super-resolution (SR). Our method directly learns an end-to-end mapping between the low/high-resolution images. The mapping is represented as a deep convolutional neural network (CNN) that…

计算机视觉与模式识别 · 计算机科学 2015-08-03 Chao Dong , Chen Change Loy , Kaiming He , Xiaoou Tang

Side-scan sonar (SSS) images are susceptible to motion-induced geometric distortion, which degrades their reliability for seabed interpretation and downstream tasks. Existing correction methods either exploit image-domain consistency…

大气与海洋物理 · 物理学 2026-04-23 Can Lei , Valerio Franchi , Hayat Rajani , Nuno Gracias , Rafael Garcia , Huigang Wang

This study explores the use of photometric techniques (shape-from-shading and uncalibrated photometric stereo) for upsampling the low-resolution depth map from an RGB-D sensor to the higher resolution of the companion RGB image. A…

计算机视觉与模式识别 · 计算机科学 2019-06-26 Bjoern Haefner , Songyou Peng , Alok Verma , Yvain Quéau , Daniel Cremers

The usually reported pixel resolution of single pixel imaging (SPI) varies between $32 \times 32$ and $256 \times 256$ pixels falling far below imaging standards with classical methods. Low resolution results from the trade-off between the…

光学 · 物理学 2022-06-22 Rafał Stojek , Anna Pastuszczak , Piotr Wróbel , Rafał Kotyński

Image alignment and image restoration are classical computer vision tasks. However, there is still a lack of datasets that provide enough data to train and evaluate end-to-end deep learning models. Obtaining ground-truth data for image…

计算机视觉与模式识别 · 计算机科学 2024-03-05 Monika Kwiatkowski , Simon Matern , Olaf Hellwich

Incoherent k-space undersampling and deep learning-based reconstruction methods have shown great success in accelerating MRI. However, the performance of most previous methods will degrade dramatically under high acceleration factors, e.g.,…

图像与视频处理 · 电气工程与系统科学 2026-01-21 Jin Liu , Qing Lin , Zhuang Xiong , Shanshan Shan , Chunyi Liu , Min Li , Feng Liu , G. Bruce Pike , Hongfu Sun , Yang Gao

Autonomous underwater vehicles often perform surveys that capture multiple views of targets in order to provide more information for human operators or automatic target recognition algorithms. In this work, we address the problem of…

机器人学 · 计算机科学 2024-04-16 Advaith V. Sethuraman , Philip Baldoni , Katherine A. Skinner , James McMahon

3D reconstruction from a single RGB image is a challenging problem in computer vision. Previous methods are usually solely data-driven, which lead to inaccurate 3D shape recovery and limited generalization capability. In this work, we focus…

计算机视觉与模式识别 · 计算机科学 2020-06-18 Yichao Zhou , Shichen Liu , Yi Ma

Single image super resolution (SISR) is an ill-posed problem aiming at estimating a plausible high resolution (HR) image from a single low resolution (LR) image. Current state-of-the-art SISR methods are patch-based. They use either…

计算机视觉与模式识别 · 计算机科学 2017-12-13 Cristóvão Cruz , Rakesh Mehta , Vladimir Katkovnik , Karen Egiazarian

Rendering is the process of generating 2D images from 3D assets, simulated in a virtual environment, typically with a graphics pipeline. By inverting such renderer, one can think of a learning approach to predict a 3D shape from an input…

计算机视觉与模式识别 · 计算机科学 2019-01-24 Shichen Liu , Weikai Chen , Tianye Li , Hao Li

Deep learning has not been routinely employed for semantic segmentation of seabed environment for synthetic aperture sonar (SAS) imagery due to the implicit need of abundant training data such methods necessitate. Abundant training data,…

计算机视觉与模式识别 · 计算机科学 2021-08-02 Yung-Chen Sun , Isaac D. Gerg , Vishal Monga

High-dynamic-range (HDR) imaging is crucial for many computer graphics and vision applications. Yet, acquiring HDR images with a single shot remains a challenging problem. Whereas modern deep learning approaches are successful at…

图像与视频处理 · 电气工程与系统科学 2019-08-05 Christopher A. Metzler , Hayato Ikoma , Yifan Peng , Gordon Wetzstein

3D reconstruction methods such as Neural Radiance Fields (NeRFs) excel at rendering photorealistic novel views of complex scenes. However, recovering a high-quality NeRF typically requires tens to hundreds of input images, resulting in a…

Underwater perception and 3D surface reconstruction are challenging problems with broad applications in construction, security, marine archaeology, and environmental monitoring. Treacherous operating conditions, fragile surroundings, and…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Mohamad Qadri , Kevin Zhang , Akshay Hinduja , Michael Kaess , Adithya Pediredla , Christopher A. Metzler

Purpose: In multi-spectral imaging (MSI), several fast spin echo volumes with discrete Larmor frequency offsets are acquired in an interleaved fashion with multiple concatenations. Here, a variable resolution (VR) method to nearly halve…

医学物理 · 物理学 2023-06-06 Nikolai J. Mickevicius , Azadeh Sharafi , Andrew S. Nencka , Kevin M. Koch