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Monocular depth estimation is still an open challenge due to the ill-posed nature of the problem at hand. Deep learning based techniques have been extensively studied and proved capable of producing acceptable depth estimation accuracy even…

图像与视频处理 · 电气工程与系统科学 2022-04-15 Mazen Mel , Muhammad Siddiqui , Pietro Zanuttigh

Recently, 3D medical image reconstruction (MIR) and segmentation (MIS) based on deep neural networks have been developed with promising results, and attention mechanism has been further designed to capture global contextual information for…

图像与视频处理 · 电气工程与系统科学 2023-11-28 Hang Zhang , Jinwei Zhang , Rongguang Wang , Qihao Zhang , Pascal Spincemaille , Thanh D. Nguyen , Yi Wang

Target detection is the front-end stage in any automatic target recognition system for synthetic aperture radar (SAR) imagery (SAR-ATR). The efficacy of the detector directly impacts the succeeding stages in the SAR-ATR processing chain.…

图像与视频处理 · 电气工程与系统科学 2018-04-16 Khalid El-Darymli , Peter McGuire , Desmond Power , Cecilia Moloney

Sparse principal component analysis (PCA) is a well-established dimensionality reduction technique that is often used for unsupervised feature selection (UFS). However, determining the regularization parameters is rather challenging, and…

机器学习 · 计算机科学 2025-04-07 Long Chen , Xianchao Xiu

This paper proposes a depth estimation method using radar-image fusion by addressing the uncertain vertical directions of sparse radar measurements. In prior radar-image fusion work, image features are merged with the uncertain sparse…

计算机视觉与模式识别 · 计算机科学 2024-03-26 Masaya Kotani , Takeru Oba , Norimichi Ukita

In this paper, a novel two-dimensional super-resolution angle-of-departure (AoD) and angle-of-arrival (AoA) estimation technique is proposed for wideband millimeter-wave multiple-input multiple-output systems with cross-polarized antenna…

信息论 · 计算机科学 2017-02-09 Dalin Zhu , Junil Choi , Robert W. Heath

Automated 3D pose estimation of satellites and other known space objects is a critical component of space situational awareness. Ground-based imagery offers a convenient data source for satellite characterization; however, analysis…

计算机视觉与模式识别 · 计算机科学 2019-06-27 Maxim Bazik , Brien Flewelling , Manoranjan Majji , Joseph Mundy

Phase is a fundamental resource for optical imaging but cannot be directly observed with intensity measurements. The existing methods to quantify a phase distribution rely on complex devices and structures. Here we experimentally…

光学 · 物理学 2020-03-25 Tengfeng Zhu , Junyi Huang , Zhichao Ruan

Radar-camera fusion methods have emerged as a cost-effective approach for 3D object detection but still lag behind LiDAR-based methods in performance. Recent works have focused on employing temporal fusion and Knowledge Distillation (KD)…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Geonho Bang , Minjae Seong , Jisong Kim , Geunju Baek , Daye Oh , Junhyung Kim , Junho Koh , Jun Won Choi

Despite substantial progress in anomaly synthesis methods, existing diffusion-based and coarse inpainting pipelines commonly suffer from structural deficiencies such as micro-structural discontinuities, limited semantic controllability, and…

计算机视觉与模式识别 · 计算机科学 2025-08-06 Long Qian , Bingke Zhu , Yingying Chen , Ming Tang , Jinqiao Wang

Depth Estimation has wide reaching applications in the field of Computer vision such as target tracking, augmented reality, and self-driving cars. The goal of Monocular Depth Estimation is to predict the depth map, given a 2D monocular RGB…

计算机视觉与模式识别 · 计算机科学 2023-04-17 Mayank Poddar , Akash Mishra , Mohit Kewlani , Haoyang Pei

This work proposes a novel motion guided method for target-less self-calibration of a LiDAR and camera and use the re-projection of LiDAR points onto the image reference frame for real-time depth upsampling. The calibration parameters are…

计算机视觉与模式识别 · 计算机科学 2020-07-06 Juan Castorena , Gint Puskorius , Gaurav Pandey

We introduce SCAR, a method for long-term auto-calibration refinement of aerial visual-inertial systems that exploits georeferenced satellite imagery as a persistent global reference. SCAR estimates both intrinsic and extrinsic parameters…

计算机视觉与模式识别 · 计算机科学 2026-02-19 Henry Hölzemann , Michael Schleiss

We present FLARE, a feed-forward model designed to infer high-quality camera poses and 3D geometry from uncalibrated sparse-view images (i.e., as few as 2-8 inputs), which is a challenging yet practical setting in real-world applications.…

计算机视觉与模式识别 · 计算机科学 2026-01-27 Shangzhan Zhang , Jianyuan Wang , Yinghao Xu , Nan Xue , Christian Rupprecht , Xiaowei Zhou , Yujun Shen , Gordon Wetzstein

Transparent and specular objects are frequently encountered in daily life, factories, and laboratories. However, due to the unique optical properties, the depth information on these objects is usually incomplete and inaccurate, which poses…

计算机视觉与模式识别 · 计算机科学 2025-03-24 Yizhe Liu , Tong Jia , Da Cai , Hao Wang , Dongyue Chen

3D object detection in autonomous driving aims to reason "what" and "where" the objects of interest present in a 3D world. Following the conventional wisdom of previous 2D object detection, existing methods often adopt the canonical…

计算机视觉与模式识别 · 计算机科学 2023-01-18 Yanqin Jiang , Li Zhang , Zhenwei Miao , Xiatian Zhu , Jin Gao , Weiming Hu , Yu-Gang Jiang

In this paper, we present INertial Lidar Localisation Autocalibration And MApping (IN2LAAMA): an offline probabilistic framework for localisation, mapping, and extrinsic calibration based on a 3D-lidar and a 6-DoF-IMU. Most of today's…

机器人学 · 计算机科学 2020-10-23 Cedric Le Gentil , Teresa Vidal-Calleja , Shoudong Huang

Recent works in deep-learning have shown that second-order information is beneficial in many computer-vision tasks. Second-order information can be enforced both in the spatial context and the abstract feature dimensions. In this work, we…

计算机视觉与模式识别 · 计算机科学 2020-08-05 Tony Ng , Vassileios Balntas , Yurun Tian , Krystian Mikolajczyk

Shack-Hartmann wavefront sensing relies on accurate spot centre measurement. Several algorithms were developed with this aim, mostly focused on precision, i.e. minimizing random errors. In the solar and extended scene community, the…

天体物理仪器与方法 · 物理学 2018-02-07 Narsireddy Anugu , Paulo J. V. Garcia , Carlos M. Correia

Variational methods in imaging are nowadays developing towards a quite universal and flexible tool, allowing for highly successful approaches on tasks like denoising, deblurring, inpainting, segmentation, super-resolution, disparity, and…

最优化与控制 · 数学 2014-12-16 Martin Burger , Alex Sawatzky , Gabriele Steidl