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We introduce a novel depth estimation technique for multi-frame structured light setups using neural implicit representations of 3D space. Our approach employs a neural signed distance field (SDF), trained through self-supervised…

计算机视觉与模式识别 · 计算机科学 2024-05-21 Rukun Qiao , Hiroshi Kawasaki , Hongbin Zha

Detecting ships in synthetic aperture radar (SAR) images is challenging due to strong speckle noise, complex surroundings, and varying scales. This paper proposes MLDet, a multitask learning framework for SAR ship detection, consisting of…

计算机视觉与模式识别 · 计算机科学 2024-11-22 Ming Zhao , Xin Zhang , André Kaup

Reconstructing signed distance functions (SDFs) from point cloud data benefits many robot autonomy capabilities, including localization, mapping, motion planning, and control. Methods that support online and large-scale SDF reconstruction…

机器人学 · 计算机科学 2026-04-27 Zhirui Dai , Qihao Qian , Tianxing Fan , Nikolay Atanasov

Convolutional Neural Networks (CNN) have been regarded as a capable class of models for visual recognition problems. Nevertheless, it is not trivial to develop generic and powerful network architectures, which requires significant efforts…

计算机视觉与模式识别 · 计算机科学 2019-09-24 Zhaofan Qiu , Ting Yao , Yiheng Zhang , Yongdong Zhang , Tao Mei

As an important task in remote sensing image analysis, remote sensing change detection (RSCD) aims to identify changes of interest in a region from spatially co-registered multi-temporal remote sensing images, so as to monitor the local…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Xiaowen Ma , Jiawei Yang , Tingfeng Hong , Mengting Ma , Ziyan Zhao , Tian Feng , Wei Zhang

This paper proposes a two-view deterministic geometric model fitting method, termed Superpixel-based Deterministic Fitting (SDF), for multiple-structure data. SDF starts from superpixel segmentation, which effectively captures prior…

计算机视觉与模式识别 · 计算机科学 2016-07-21 Guobao Xiao , Hanzi Wang , Yan Yan , David Suter

In order to fully utilize spatial information for segmentation and address the challenge of handling areas with significant grayscale variations in remote sensing segmentation, we propose the SFFNet (Spatial and Frequency Domain Fusion…

计算机视觉与模式识别 · 计算机科学 2024-05-06 Yunsong Yang , Genji Yuan , Jinjiang Li

Recently, synthetic aperture radar (SAR) image change detection has become an interesting yet challenging direction due to the presence of speckle noise. Although both traditional and modern learning-driven methods attempted to overcome…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Gong Chen , Yanan Zhao , Yi Wang , Kim-Hui Yap

Capturing the shape and spatially-varying appearance (SVBRDF) of an object from images is a challenging task that has applications in both computer vision and graphics. Traditional optimization-based approaches often need a large number of…

计算机视觉与模式识别 · 计算机科学 2021-05-20 Mark Boss , Varun Jampani , Kihwan Kim , Hendrik P. A. Lensch , Jan Kautz

We consider the challenging problem of learning Signed Distance Functions (SDF) from sparse and noisy 3D point clouds. In contrast to recent methods that depend on smoothness priors, our method, rooted in a distributionally robust…

计算机视觉与模式识别 · 计算机科学 2024-12-24 Amine Ouasfi , Shubhendu Jena , Eric Marchand , Adnane Boukhayma

Unsupervised anomaly detection (UAD) is a key ingredient of automated visual inspection in modern manufacturing. The reconstruction-based methods appeal because they have basic architectural design and they process data quickly but they…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Dmytro Filatov , Valentyn Fedorov , Vira Filatova , Andrii Zelenchuk

Synthetic Aperture Radar (SAR) enables submeter-resolution imaging and all-weather monitoring via active microwave and advanced signal processing. Currently, SAR has found extensive applications in critical maritime domains such as ship…

计算机视觉与模式识别 · 计算机科学 2025-06-19 Liangjie Meng , Danxia Li , Jinrong He , Lili Ma , Zhixin Li

3D image reconstruction from a limited number of 2D images has been a long-standing challenge in computer vision and image analysis. While deep learning-based approaches have achieved impressive performance in this area, existing deep…

计算机视觉与模式识别 · 计算机科学 2023-10-04 Nivetha Jayakumar , Tonmoy Hossain , Miaomiao Zhang

This study addresses the partial-to-complete geometry reconstruction of deformable objects (DOs) from point-cloud observations toward precise DO manipulation. Recent DO reconstruction approaches often adopt implicit neural representations…

计算机视觉与模式识别 · 计算机科学 2026-05-29 Deokmin Hwang , Minseok Song , Daehyung Park

Convolutional neural networks (CNN) have made great progress for synthetic aperture radar (SAR) images change detection. However, sampling locations of traditional convolutional kernels are fixed and cannot be changed according to the…

计算机视觉与模式识别 · 计算机科学 2021-04-07 Junjie Wang , Feng Gao , Junyu Dong

Ship detection in Synthetic Aperture Radar (SAR) imagery is fundamentally challenged by inherent coherent speckle noise, complex coastal clutter, and the prevalence of small-scale targets. Conventional detectors, primarily designed for…

计算机视觉与模式识别 · 计算机科学 2026-04-07 Fenghao Song , Shaojing Yang , Xi Zhou

Current CNN-based infrared small target detection(IRSTD) methods generally overlook the heterogeneity between shallow and deep features, leading to inefficient collaboration between shallow fine grained structural information and deep…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Taoran Yue , Xiaojin Lu , Jiaxi Cai , Yuanping Chen , Shibing Chu

Robust scene representation is essential for autonomous systems to safely operate in challenging low-visibility environments. Radar has a clear advantage over cameras and lidars in these conditions due to its resilience to environmental…

机器人学 · 计算机科学 2026-03-27 Judith Treffler , Vladimír Kubelka , Henrik Andreasson , Martin Magnusson

Digital twins are fundamental to the development of autonomous driving and embodied artificial intelligence. However, achieving high-granularity surface reconstruction and high-fidelity rendering remains a challenge. Gaussian splatting…

机器人学 · 计算机科学 2025-07-30 Jianheng Liu , Yunfei Wan , Bowen Wang , Chunran Zheng , Jiarong Lin , Fu Zhang

Deep unfolding networks have recently emerged as a promising approach for synthetic aperture radar (SAR) imaging. However, baseline unfolding networks, typically derived from iterative reconstruction algorithms such as the alternating…

信号处理 · 电气工程与系统科学 2025-06-27 Shiping Fu , Yufan Chen , Zhe Zhang , Xiaolan Qiu , Qixiang Ye