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We present a real-time, non-learning depth estimation method that fuses Light Detection and Ranging (LiDAR) data with stereo camera input. Our approach comprises three key techniques: Semi-Global Matching (SGM) stereo with Discrete…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Yasuhiro Yao , Ryoichi Ishikawa , Takeshi Oishi

Existing LiDAR-Camera fusion methods have achieved strong results in 3D object detection. To address the sparsity of point clouds, previous approaches typically construct spatial pseudo point clouds via depth completion as auxiliary input…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Jijun Wang , Yan Wu , Yujian Mo , Junqiao Zhao , Jun Yan , Yinghao Hu

Synthetic aperture radar (SAR) is a day or night any-weather imaging modality that is an important tool in remote sensing. Most existing SAR image formation methods result in a maximum a posteriori image which approximates the reflectivity…

Applications · Statistics 2020-07-14 Victor Churchill , Anne Gelb

In this paper, a complete pipeline for image-based 3D reconstruction of urban scenarios is proposed, based on PatchMatch Multi-View Stereo (MVS). Input images are firstly fed into an off-the-shelf visual SLAM system to extract camera poses…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Marco Orsingher , Paolo Zani , Paolo Medici , Massimo Bertozzi

We investigate the problem of localizing multiple targets using a single set of measurements from a network of radar sensors. Such "single snapshot imaging" provides timely situational awareness, but can utilize neither platform motion, as…

Signal Processing · Electrical Eng. & Systems 2024-10-01 Anant Gupta , Ahmet Dundar Sezer , Upamanyu Madhow

Pansharpening aims at fusing a panchromatic image with a multispectral one, to generate an image with the high spatial resolution of the former and the high spectral resolution of the latter. In the last decade, many algorithms have been…

Remote sensing image captioning aims to generate semantically accurate descriptions that are closely linked to the visual features of remote sensing images. Existing approaches typically emphasize fine-grained extraction of visual features…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Maofu Liu , Jiahui Liu , Xiaokang Zhang

Radar is ubiquitous in autonomous driving systems due to its low cost and good adaptability to bad weather. Nevertheless, the radar detection performance is usually inferior because its point cloud is sparse and not accurate due to the poor…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Yang Liu , Feng Wang , Naiyan Wang , Zhaoxiang Zhang

Generating trajectories for synthetic aperture radar (SAR)-equipped aircraft poses significant challenges due to terrain constraints, and the need for straight-flight segments to ensure high-quality imaging. Related works usually focus on…

There is a growing demand for high-resolution (HR) medical images in both the clinical and research applications. Image quality is inevitably traded off with the acquisition time for better patient comfort, lower examination costs, dose,…

Image and Video Processing · Electrical Eng. & Systems 2021-06-07 Kuan Zhang , Haoji Hu , Kenneth Philbrick , Gian Marco Conte , Joseph D. Sobek , Pouria Rouzrokh , Bradley J. Erickson

In the context of a localization and tracking application, we developed a stereo vision system based on cheap low-resolution 80x60 pixels thermal cameras. We proposed a threefold sub-pixel stereo matching framework (called ST for Subpixel…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Yannick Wend Kuni Zoetgnande , Geoffroy Cormier , Alain-Jérôme Fougères , Jean-Louis Dillenseger

For 3D Synthetic Aperture Radar (SAR) imaging, one typical approach is to achieve the cross-track 1D focusing for each range-azimuth pixel after obtaining a stack of 2D complex-valued images. The cross-track focusing is the main difficulty…

Signal Processing · Electrical Eng. & Systems 2018-08-28 Jingkun Gao , Bin Deng , Yuliang Qin , Hongqiang Wang , Xiang Li

The increasingly common use of incidental satellite images for stereo reconstruction versus rigidly tasked binocular or trinocular coincident collection is helping to enable timely global-scale 3D mapping; however, reliable stereo…

Computer Vision and Pattern Recognition · Computer Science 2018-11-22 Marc Bosch , Kevin Foster , Gordon Christie , Sean Wang , Gregory D Hager , Myron Brown

Hyperspectral imaging is a cutting-edge type of remote sensing used for mapping vegetation properties, rock minerals and other materials. A major drawback of hyperspectral imaging devices is their intrinsic low spatial resolution. In this…

Computer Vision and Pattern Recognition · Computer Science 2022-08-16 Leon Bungert , David A. Coomes , Matthias J. Ehrhardt , Jennifer Rasch , Rafael Reisenhofer , Carola-Bibiane Schönlieb

The fusion of Synthetic Aperture Radar (SAR) and RGB imagery for land cover classification remains challenging due to modality heterogeneity and underexploited spectral complementarity. Existing approaches often fail to decouple shared…

Computer Vision and Pattern Recognition · Computer Science 2025-10-20 Huiling Zheng , Xian Zhong , Bin Liu , Yi Xiao , Bihan Wen , Xiaofeng Li

Accurate estimation of building heights using very high resolution (VHR) synthetic aperture radar (SAR) imagery is crucial for various urban applications. This paper introduces a Deep Learning (DL)-based methodology for automated building…

Computer Vision and Pattern Recognition · Computer Science 2025-07-14 Babak Memar , Luigi Russo , Silvia Liberata Ullo , Paolo Gamba

Most satellites decouple the acquisition of a panchromatic image at high spatial resolution from the acquisition of a multispectral image at lower spatial resolution. Pansharpening is a fusion technique used to increase the spatial…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Joan Duran , Antoni Buades , Bartomeu Coll , Catalina Sbert , Gwendoline Blanchet

Synthetic Aperture Radar (SAR) images contain a huge amount of information, however, the number of practical use-cases is limited due to the presence of speckle noise in them. In recent years, deep learning based techniques have brought…

Image and Video Processing · Electrical Eng. & Systems 2020-04-24 Shrey Dabhi , Kartavya Soni , Utkarsh Patel , Priyanka Sharma , Manojkumar Parmar

Optical remote sensing and Synthetic Aperture Radar(SAR) remote sensing are crucial for earth observation, offering complementary capabilities. While optical sensors provide high-quality images, they are limited by weather and lighting…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Hannuo Zhang , Huihui Li , Jiarui Lin , Yujie Zhang , Jianghua Fan , Hang Liu

Synthetic Aperture Radar (SAR) imaging results are highly sensitive to observation geometries and the geometric parameters of targets. However, existing generative methods primarily operate within the image domain, neglecting explicit…

Image and Video Processing · Electrical Eng. & Systems 2026-01-08 Fan Zhang , Xuanting Wu , Fei Ma , Qiang Yin , Yuxin Hu