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Single-pixel imaging is a novel imaging scheme that has gained popularity due to its huge computational gain and potential for a low-cost alternative to imaging beyond the visible spectrum. The traditional reconstruction methods struggle to…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Nazmul Karim , Nazanin Rahnavard

Single-photon cameras (SPCs) are emerging as sensors of choice for various challenging imaging applications. One class of SPCs based on the single-photon avalanche diode (SPAD) detects individual photons using an avalanche process; the raw…

Image and Video Processing · Electrical Eng. & Systems 2024-09-30 Lucas J. Koerner , Shantanu Gupta , Atul Ingle , Mohit Gupta

Efficient simulation of photon registrations in single-photon LiDAR (SPL) is essential for applications such as depth estimation under high-flux conditions, where hardware dead time significantly distorts photon measurements. However, the…

Signal Processing · Electrical Eng. & Systems 2025-06-02 Weijian Zhang , Hashan K. Weerasooriya , Stanley Chan

Recent works on domain adaptation reveal the effectiveness of adversarial learning on filling the discrepancy between source and target domains. However, two common limitations exist in current adversarial-learning-based methods. First,…

Computer Vision and Pattern Recognition · Computer Science 2019-12-05 Minghao Xu , Jian Zhang , Bingbing Ni , Teng Li , Chengjie Wang , Qi Tian , Wenjun Zhang

In this study, we address a gap in existing unsupervised domain adaptation approaches on LiDAR-based 3D object detection, which have predominantly concentrated on adapting between established, high-density autonomous driving datasets. We…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Maciej K Wozniak , Mattias Hansson , Marko Thiel , Patric Jensfelt

Modern deep neural networks (DNNs) are highly accurate on many recognition tasks for overhead (e.g., satellite) imagery. However, visual domain shifts (e.g., statistical changes due to geography, sensor, or atmospheric conditions) remain a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Can Yaras , Kaleb Kassaw , Bohao Huang , Kyle Bradbury , Jordan M. Malof

Unsupervised domain adaptation algorithms aim to transfer the knowledge learned from one domain to another (e.g., synthetic to real images). The adapted representations often do not capture pixel-level domain shifts that are crucial for…

Computer Vision and Pattern Recognition · Computer Science 2020-01-13 Yun-Chun Chen , Yen-Yu Lin , Ming-Hsuan Yang , Jia-Bin Huang

Realistic image super-resolution (SR) focuses on transforming real-world low-resolution (LR) images into high-resolution (HR) ones, handling more complex degradation patterns than synthetic SR tasks. This is critical for applications like…

Computer Vision and Pattern Recognition · Computer Science 2025-11-24 Chaowei Fang , Bolin Fu , De Cheng , Lechao Cheng , Guanbin Li

Domain adaptation is widely used in learning problems lacking labels. Recent studies show that deep adversarial domain adaptation models can make markable improvements in performance, which include symmetric and asymmetric architectures.…

Computer Vision and Pattern Recognition · Computer Science 2019-09-19 Guanyu Cai , Yuqin Wang , Mengchu Zhou , Lianghua He

Object recognition from images means to automatically find object(s) of interest and to return their category and location information. Benefiting from research on deep learning, like convolutional neural networks~(CNNs) and generative…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Zhize Wu , Xiaofeng Wang , Tong Xu , Xuebin Yang , Le Zou , Lixiang Xu , Thomas Weise

We consider the problem of adapting a network trained on three-channel color images to a hyperspectral domain with a large number of channels. To this end, we propose domain adaptor networks that map the input to be compatible with a…

Computer Vision and Pattern Recognition · Computer Science 2021-08-04 Gustavo Perez , Subhransu Maji

Object detection is essential in space applications targeting Space Domain Awareness and also applications involving relative navigation scenarios. Current deep learning models for Object Detection in space applications are often trained on…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Samet Hicsonmez , Abd El Rahman Shabayek , Arunkumar Rathinam , Djamila Aouada

We propose a novel image sampling method for differentiable image transformation in deep neural networks. The sampling schemes currently used in deep learning, such as Spatial Transformer Networks, rely on bilinear interpolation, which…

Computer Vision and Pattern Recognition · Computer Science 2019-09-11 Wei Jiang , Weiwei Sun , Andrea Tagliasacchi , Eduard Trulls , Kwang Moo Yi

LiDAR (laser based radar) systems are a major part of many new real-world interactive systems, one of the most notable being autonomous cars. The current market LiDAR systems are limited by detector sensitivity: when output power is at…

Signal Processing · Electrical Eng. & Systems 2018-02-27 Yoni Sher , Lior Cohen , Daniel Istrati , Hagai S. Eisenberg

Domain shift, the mismatch between training and testing data characteristics, causes significant degradation in the predictive performance in multi-source imaging scenarios. In medical imaging, the heterogeneity of population, scanners and…

Machine Learning · Computer Science 2021-12-21 Rongguang Wang , Pratik Chaudhari , Christos Davatzikos

State-of-the-art object detection methods applied to satellite and drone imagery largely fail to identify small and dense objects. One reason is the high variability of content in the overhead imagery due to the terrestrial region captured…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Debojyoti Biswas , Jelena Tešić

Camera and LiDAR serve as informative sensors for accurate and robust autonomous driving systems. However, these sensors often exhibit heterogeneous natures, resulting in distributional modality gaps that present significant challenges for…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Yiran Yang , Xu Gao , Tong Wang , Xin Hao , Yifeng Shi , Xiao Tan , Xiaoqing Ye , Jingdong Wang

Single-photon avalanche diodes (SPADs) are advanced sensors capable of detecting individual photons and recording their arrival times with picosecond resolution using time-correlated Single-Photon Counting detection techniques. They are…

Image and Video Processing · Electrical Eng. & Systems 2024-12-13 Alice Ruget , Lewis Wilson , Jonathan Leach , Rachael Tobin , Aongus Mccarthy , Gerald S. Buller , Steve Mclaughlin , Abderrahim Halimi

In this paper we address the challenging problem of domain adaptation in LiDAR semantic segmentation. We consider the setting where we have a fully-labeled data set from source domain and a target domain with a few labeled and many…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Eduardo R. Corral-Soto , Mrigank Rochan , Yannis Y. He , Shubhra Aich , Yang Liu , Liu Bingbing

Despite domain-adaptive object detectors based on CNN and transformers have made significant progress in cross-domain detection tasks, it is regrettable that domain adaptation for real-time transformer-based detectors has not yet been…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Feng Lv , Guoqing Li , Jin Li , Chunlong Xia