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Collecting real-world optical flow datasets is a formidable challenge due to the high cost of labeling. A shortage of datasets significantly constrains the real-world performance of optical flow models. Building virtual datasets that…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Miaojie Feng , Longliang Liu , Hao Jia , Gangwei Xu , Xin Yang

Despite the progress of learning-based methods for 6D object pose estimation, the trade-off between accuracy and scalability for novel objects still exists. Specifically, previous methods for novel objects do not make good use of the target…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Sungphill Moon , Hyeontae Son , Dongcheol Hur , Sangwook Kim

Most self-supervised 6D object pose estimation methods can only work with additional depth information or rely on the accurate annotation of 2D segmentation masks, limiting their application range. In this paper, we propose a 6D object pose…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Yang Hai , Rui Song , Jiaojiao Li , David Ferstl , Yinlin Hu

6D object pose estimation is crucial for robotic perception and precise manipulation. Occlusion and incomplete object visibility are common challenges in this task, but existing pose refinement methods often struggle to handle these issues…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Xin Liu , Shibei Xue , Dezong Zhao , Shan Ma , Min Jiang

Most successful approaches to estimate the 6D pose of an object typically train a neural network by supervising the learning with annotated poses in real world images. These annotations are generally expensive to obtain and a common…

Computer Vision and Pattern Recognition · Computer Science 2020-10-19 Juil Sock , Guillermo Garcia-Hernando , Anil Armagan , Tae-Kyun Kim

Efficient processing of high-res video streams is safety-critical for many robotics applications such as autonomous driving. To maintain real-time performance, many practical systems downsample the video stream. But this can hurt downstream…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Chittesh Thavamani , Mengtian Li , Nicolas Cebron , Deva Ramanan

Object pose estimation underwater allows an autonomous system to perform tracking and intervention tasks. Nonetheless, underwater target pose estimation is remarkably challenging due to, among many factors, limited visibility, light…

Underwater video pairs are fairly difficult to obtain due to the complex underwater imaging. In this case, most existing video underwater enhancement methods are performed by directly applying the single-image enhancement model frame by…

Computer Vision and Pattern Recognition · Computer Science 2025-12-08 Qi Zhu , Jingyi Zhang , Naishan Zheng , Wei Yu , Jinghao Zhang , Deyi Ji , Feng Zhao

Object pose estimation is a fundamental problem in computer vision and plays a critical role in virtual reality and embodied intelligence, where agents must understand and interact with objects in 3D space. Recently, score based generative…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Diya He , Qingchen Liu , Cong Zhang , Jiahu Qin

The severe image degradation in underwater environments impairs object detection models, as traditional image enhancement methods are often not optimized for such downstream tasks. To address this, we propose AquaFeat, a novel,…

Most recent 6D object pose methods use 2D optical flow to refine their results. However, the general optical flow methods typically do not consider the target's 3D shape information during matching, making them less effective in 6D object…

Computer Vision and Pattern Recognition · Computer Science 2023-06-26 Yang Hai , Rui Song , Jiaojiao Li , Yinlin Hu

The position-fluid antenna (PFA) architecture has become one of the appealing technologies to support ubiquitous connectivity demand in next-generation wireless systems. Specifically, allowing the antenna to adjust its physical position to…

Information Theory · Computer Science 2024-09-04 Heyin Shen , Chong Han , Hao Liu , Tao Yang

Detecting water-surface targets for Unmanned Surface Vehicles (USVs) is challenging due to wave clutter, specular reflections, and weak appearance cues in long-range observations. Although 4D millimeter-wave radar complements cameras under…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Yuting Wan , Liguo Sun , Jiuwu Hao , Zao Zhang , Pin LV

Reconstruction of 3D neural fields from posed images has emerged as a promising method for self-supervised representation learning. The key challenge preventing the deployment of these 3D scene learners on large-scale video data is their…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Cameron Smith , Yilun Du , Ayush Tewari , Vincent Sitzmann

Underwater images are subject to intricate and diverse degradation, inevitably affecting the effectiveness of underwater visual tasks. However, most approaches primarily operate in the raw pixel space of images, which limits the exploration…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Chen Zhao , Weiling Cai , Chenyu Dong , Chengwei Hu

Unsupervised anomaly detection and localization is crucial to the practical application when collecting and labeling sufficient anomaly data is infeasible. Most existing representation-based approaches extract normal image features with a…

Computer Vision and Pattern Recognition · Computer Science 2021-11-17 Jiawei Yu , Ye Zheng , Xiang Wang , Wei Li , Yushuang Wu , Rui Zhao , Liwei Wu

Detection of artificial objects from underwater imagery gathered by Autonomous Underwater Vehicles (AUVs) is a key requirement for many subsea applications. Real-world AUV image datasets tend to be very large and unlabelled. Furthermore,…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Suraj Bijjahalli , Oscar Pizarro , Stefan B. Williams

Underwater video analysis is particularly challenging due to factors such as low lighting, color distortion, and turbidity, which compromise visual data quality and directly impact the performance of perception modules in robotic…

Full-waveform inversion (FWI) is a high-resolution seismic imaging method that estimates subsurface velocity by matching simulated and recorded waveforms. However, FWI is highly nonlinear, prone to cycle skipping, and sensitive to noise,…

Machine Learning · Computer Science 2026-03-17 Xinquan Huang , Paris Perdikaris

Visual monitoring operations underwater require both observing the objects of interest in close-proximity, and tracking the few feature-rich areas necessary for state estimation.This paper introduces the first navigation framework, called…

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