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1,261 Results Found

  • Article
  • Open Access
5 Citations
3,280 Views
17 Pages

14 January 2019

Database-referenced navigation (DBRN) using geophysical information is often implemented on autonomous underwater vehicles (AUVs) to correct the positional errors of the inertial navigation system (INS). The matching algorithm is a pivotal technique...

  • Article
  • Open Access
9 Citations
4,343 Views
19 Pages

27 January 2018

The current neighborhood probability (NP) method mainly considers the spatial displacement error in high-resolution precipitation forecasts, but the problem of the forecast time exceeding or lagging behind the observed field has not been properly sol...

  • Article
  • Open Access
376 Views
25 Pages

VLM-Guided and Spatially Consistent Cross-View Matching and Localization of UGVs in UAV-Stitched Map

  • Yusheng Yang,
  • Xinxu Ma,
  • Ziluan Jiang,
  • Pengfei Sun,
  • Xun Zhao,
  • Yangmin Xie and
  • Wei Qian

17 December 2025

In Global Navigation Satellite System (GNSS)-denied urban environments, unmanned ground vehicles (UGVs) face significant difficulties in maintaining reliable localization due to occlusion and structural complexity. Unmanned aerial vehicles (UAVs), wi...

  • Article
  • Open Access
2 Citations
1,799 Views
16 Pages

4 July 2024

With the increasing use of unmanned aerial vehicles (UAVs) in various fields, achieving the precise localization of UAV images is crucial for enhancing their utility. Photogrammetry-based techniques, particularly bundle adjustment, serve as foundatio...

  • Article
  • Open Access
6 Citations
2,146 Views
19 Pages

15 December 2024

Mixed pixels often hinder accurate cropland mapping from remote sensing images with coarse spatial resolution. Image spatial super-resolution reconstruction technology is widely applied to address this issue, typically transforming coarse-resolution...

  • Article
  • Open Access
54 Citations
11,792 Views
17 Pages

With the coming era of big data and the rapid development and widespread applications of Geographical Information Systems (GISs), geocoding technology is playing an increasingly important role in bridging the gap between non-spatial data resources an...

  • Article
  • Open Access
20 Citations
7,664 Views
19 Pages

1 December 2017

Geometric distortions and intensity differences always exist in multi-source optical satellite imagery, seriously reducing the similarity between images, making it difficult to obtain adequate, accurate, stable, and well-distributed matches for image...

  • Article
  • Open Access
1 Citations
1,586 Views
101 Pages

3 March 2025

Fingerprinting-based positioning exploiting in two dimensions the spatial side information on fingerprints from adjacent positions relative to a target position is studied. The positioning is performed at the positioning device, utilizing as fingerpr...

  • Article
  • Open Access
3 Citations
3,282 Views
16 Pages

To promote the development of deep learning for feature matching, image registration, and three-dimensional reconstruction, we propose a method of constructing a deep learning benchmark dataset for affine-invariant feature matching. Existing images o...

  • Article
  • Open Access
13 Citations
5,062 Views
16 Pages

Deep Transfer Learning Model for Semantic Address Matching

  • Liuchang Xu,
  • Ruichen Mao,
  • Chengkun Zhang,
  • Yuanyuan Wang,
  • Xinyu Zheng,
  • Xingyu Xue and
  • Fang Xia

8 October 2022

Address matching, which aims to match an input descriptive address with a standard address in an address database, is a key technology for achieving data spatialization. The construction of today’s smart cities depends heavily on the precise ma...

  • Article
  • Open Access
8 Citations
2,396 Views
19 Pages

18 February 2023

Accurate extraction of cropland distribution information using remote sensing technology is a key step in the monitoring, protection, and sustainable development of black soil. To obtain precise spatial distribution of cropland, an information extrac...

  • Technical Note
  • Open Access
7 Citations
3,570 Views
18 Pages

Analyzing Satellite Ocean Color Match-Up Protocols Using the Satellite Validation Navy Tool (SAVANT) at MOBY and Two AERONET-OC Sites

  • Adam Lawson,
  • Jennifer Bowers,
  • Sherwin Ladner,
  • Richard Crout,
  • Christopher Wood,
  • Robert Arnone,
  • Paul Martinolich and
  • David Lewis

7 July 2021

The satellite validation navy tool (SAVANT) was developed by the Naval Research Laboratory to help facilitate the assessment of the stability and accuracy of ocean color satellites, using numerous ground truth (in situ) platforms around the globe and...

  • Article
  • Open Access
10 Citations
4,744 Views
22 Pages

20 November 2022

Visual geo-localization can achieve UAVs (Unmanned Aerial Vehicles) position during GNSS (Global Navigation Satellite System) denial or restriction. However, The performance of visual geo-localization is seriously impaired by illumination variation,...

  • Article
  • Open Access
32 Citations
6,680 Views
15 Pages

28 January 2016

The crucial problem for integrating geospatial data is finding the corresponding objects (the counterpart) from different sources. Most current studies focus on object matching with individual attributes such as spatial, name, or other attributes, wh...

  • Article
  • Open Access
11 Citations
6,180 Views
20 Pages

Active Noise Control over Space: A Subspace Method for Performance Analysis

  • Jihui Zhang,
  • Thushara D. Abhayapala,
  • Wen Zhang and
  • Prasanga N. Samarasinghe

25 March 2019

In this paper, we investigate the maximum active noise control performance over a three-dimensional (3-D) spatial space, for a given set of secondary sources in a particular environment. We first formulate the spatial active noise control (ANC) probl...

  • Article
  • Open Access
29 Citations
9,170 Views
19 Pages

19 August 2016

This paper presents a novel image matching method for multi-source satellite images, which integrates global Shuttle Radar Topography Mission (SRTM) data and image segmentation to achieve robust and numerous correspondences. This method first generat...

  • Article
  • Open Access
1,025 Views
26 Pages

Research on Multi-Scale Vector Road-Matching Model Based on ISOD Descriptor

  • Yu Yan,
  • Ying Sun,
  • Shaobo Wang,
  • Yuefeng Lu,
  • Yulong Hu and
  • Miao Lu

In geographic information data processing, the matching of road data at different scales is crucial. Due to scale differences, road features can change, posing a challenge to multi-scale matching. Spatial relationship is the key to matching because i...

  • Article
  • Open Access
3 Citations
3,054 Views
20 Pages

5 May 2023

Template matching is the fundamental task in remote sensing image processing of air- and space-based platforms. Due to the heterogeneous image sources, different scales and different viewpoints, the realization of a general end-to-end matching model...

  • Article
  • Open Access
8 Citations
4,024 Views
25 Pages

Task allocation is a critical issue of spatial crowdsourcing. Although the batching strategy performs better than the real-time matching mode, it still has the following two drawbacks: (1) Because the granularity of the batch size set obtained by bat...

  • Article
  • Open Access
2 Citations
2,118 Views
15 Pages

Quasi-Dense Matching for Oblique Stereo Images through Semantic Segmentation and Local Feature Enhancement

  • Guobiao Yao,
  • Jin Zhang,
  • Fengqi Zhu,
  • Jianya Gong,
  • Fengxiang Jin,
  • Qingqing Fu and
  • Xiaofang Ren

8 February 2024

This paper proposes a quasi-dense feature matching algorithm that combines image semantic segmentation and local feature enhancement networks to address the problem of the poor matching of image features because of complex distortions, considerable o...

  • Feature Paper
  • Article
  • Open Access
1 Citations
3,274 Views
14 Pages

19 October 2019

In most hyperspectral super-resolution (HSR) methods, which are techniques used to improve the resolution of hyperspectral images (HSIs), the HSI and the target RGB image are assumed to have identical fields of view. However, because implementing the...

  • Article
  • Open Access
8 Citations
1,740 Views
24 Pages

Spatial Feature-Based ISAR Image Registration for Space Targets

  • Lizhi Zhao,
  • Junling Wang,
  • Jiaoyang Su and
  • Haoyue Luo

28 September 2024

Image registration is essential for applications requiring the joint processing of inverse synthetic aperture radar (ISAR) images, such as interferometric ISAR, image enhancement, and image fusion. Traditional image registration methods, developed fo...

  • Article
  • Open Access
595 Views
18 Pages

The cross-scale fusion and consistent representation of cross-source heterogeneous vector polygon data are fundamental tasks in the field of GIS, and they play an important role in areas such as the refined management of natural resources, territoria...

  • Article
  • Open Access
1 Citations
1,697 Views
12 Pages

26 October 2023

Visual-based positioning technology plays a pivotal role in spatial artificial intelligence, facilitating precise perception and comprehension of the physical world for robotic platforms and augmented reality devices. In this study, we propose a bino...

  • Article
  • Open Access
25 Citations
4,335 Views
28 Pages

25 February 2021

Rural-spatial restructuring involves the spatial mapping of the current rural development process. The transformation of land-use morphologies, directly or indirectly, affects the practice of rural restructuring. Analyzing this process in terms of th...

  • Article
  • Open Access
778 Views
22 Pages

Orthographic Video Map Generation Considering 3D GIS View Matching

  • Xingguo Zhang,
  • Xiangfei Meng,
  • Li Zhang,
  • Xianguo Ling and
  • Sen Yang

Converting tower-mounted videos from perspective to orthographic view is beneficial for their integration with maps and remote sensing images and can provide a clearer and more real-time data source for earth observation. This paper addresses the iss...

  • Article
  • Open Access
8 Citations
3,775 Views
18 Pages

6 August 2020

With the current extensive availability of synthetic-aperture radar (SAR) datasets with high temporal (e.g., a repeat cycle of a few or a dozen days) and spatial resolution (e.g., in the order of ∼1 m), radar remote sensing possesses an increasin...

  • Article
  • Open Access
9 Citations
5,127 Views
15 Pages

15 January 2021

Many applications have relied on the hedonic pricing model (HPM) to measure the willingness-to-pay (WTP) for urban externalities and natural disasters. The classic HPM regresses housing price on a complete list of attributes/characteristics that incl...

  • Article
  • Open Access
5 Citations
3,743 Views
10 Pages

A Fast Sparse Coding Method for Image Classification

  • Mujun Zang,
  • Dunwei Wen,
  • Tong Liu,
  • Hailin Zou and
  • Chanjuan Liu

1 February 2019

Image classification is an important problem in computer vision. The sparse coding spatial pyramid matching (ScSPM) framework is widely used in this field. However, the sparse coding cannot effectively handle very large training sets because of its h...

  • Article
  • Open Access
601 Views
19 Pages

Accurate and robust feature matching across multi-view urban imagery is fundamental for urban mapping, 3D reconstruction, and large-scale spatial alignment. Real-world urban scenes involve significant variations in viewpoint, illumination, and occlus...

  • Article
  • Open Access
3 Citations
1,714 Views
18 Pages

Graph-Based Target Association for Multi-Drone Collaborative Perception Under Imperfect Detection Conditions

  • Qifan Tan,
  • Xuqi Yang,
  • Cheng Qiu,
  • Wenzhuo Liu,
  • Yize Li,
  • Zhengxia Zou and
  • Jing Huang

11 April 2025

Multi-drone collaborative perception aims to address single-drone viewpoint limitations. The existing matching and association methods based on visual features and spatial topology rely heavily on detection, making it challenging to associate targets...

  • Article
  • Open Access
20 Citations
3,936 Views
25 Pages

16 October 2020

Outlier removal is a crucial step in local feature-based unmanned aerial vehicle (UAV) image matching. Inspired by our previous work, this paper proposes a method for reliable and efficient outlier removal in UAV image matching. The inputs of the met...

  • Article
  • Open Access
9 Citations
2,944 Views
17 Pages

22 January 2024

The spatial-temporal mismatch of water resources and socio-economic development in rapidly urbanized regions has been the focus of water resource management, and is one of the main limitations to sustainable development goals (SDGs). Guangdong Provin...

  • Article
  • Open Access
2 Citations
2,065 Views
30 Pages

In view of the problems in planning and recommending tour routes, this paper constructs a feature text mining (FTM) method and spatial accessibility model (SAM) as the key factors for scenic spot recommendation (SSR) and tour route recommendation (TR...

  • Article
  • Open Access
6 Citations
3,685 Views
13 Pages

17 December 2021

Word spotting strategies employed in historical handwritten documents face many challenges due to variation in the writing style and intense degradation. In this paper, a new method that permits efficient and effective word spotting in handwritten do...

  • Article
  • Open Access
17 Citations
5,810 Views
20 Pages

21 February 2022

The emergence of hyperspectral imagery paved a new way for rapid mineral mapping. As a classical hyperspectral classification method, spectral matching (SM) can automatically map the spatial distribution of minerals without the need for selecting tra...

  • Article
  • Open Access
47 Citations
9,903 Views
23 Pages

19 January 2016

Due to the limited accuracy of exterior orientation parameters, ground control points (GCPs) are commonly required to correct the geometric biases of remotely-sensed (RS) images. This paper focuses on an automatic matching technique for the specific...

  • Article
  • Open Access
2 Citations
2,627 Views
22 Pages

31 August 2023

Sentinel-2 serves as a crucial data source for monitoring forest cover change. In this study, a sub-pixel mapping of forest cover is performed on Sentinel-2 images, downscaling the spatial resolution of the positioned results to 2.5 m, enabling sub-p...

  • Article
  • Open Access
4 Citations
3,135 Views
24 Pages

10 January 2024

Image stitching aims to synthesize a wider and more informative whole image, which has been widely used in various fields. This study focuses on improving the accuracy of image mosaic and proposes an image mosaic method based on local edge contour ma...

  • Article
  • Open Access
17 Citations
3,120 Views
21 Pages

29 July 2022

In order to study and forecast extreme weather, a comprehensive and systematic analysis of the spatial and temporal relationship between Precipitable Water Vapor (PWV), predicted by Numerical Weather Predication (NWP) data, and precipitation, is nece...

  • Article
  • Open Access
3 Citations
3,298 Views
18 Pages

30 January 2024

Robust visual place recognition (VPR) enables mobile robots to identify previously visited locations. For this purpose, the extracted visual information and place matching method plays a significant role. In this paper, we critically review the exist...

  • Article
  • Open Access
11 Citations
3,621 Views
23 Pages

An Illumination-Invariant Shadow-Based Scene Matching Navigation Approach in Low-Altitude Flight

  • Huaxia Wang,
  • Yongmei Cheng,
  • Nan Liu,
  • Yongqiang Zhao,
  • Jonathan Cheung-Wai Chan and
  • Zhenwei Li

9 August 2022

Differences in acquisition time, light conditions, and viewing angle create significant differences among the airborne remote sensing images from Unmanned Aerial Vehicles (UAVs). Real-time scene matching navigation applications based on fixed referen...

  • Article
  • Open Access
532 Views
29 Pages

26 November 2025

Against the backdrop of efforts to improve the quality of urban spatial stock, assessments of spatial benefits driven by consumption preferences integrate subjective decision-making and objective environmental factors to provide quantitative evidence...

  • Article
  • Open Access
17 Citations
4,663 Views
25 Pages

Radargrammetric DSM Generation by Semi-Global Matching and Evaluation of Penalty Functions

  • Jinghui Wang,
  • Ke Gong,
  • Timo Balz,
  • Norbert Haala,
  • Uwe Soergel,
  • Lu Zhang and
  • Mingsheng Liao

7 April 2022

Radargrammetry is a useful approach to generate Digital Surface Models (DSMs) and an alternative to InSAR techniques that are subject to temporal or atmospheric decorrelation. Stereo image matching in radargrammetry refers to the process of determini...

  • Article
  • Open Access
3 Citations
4,933 Views
13 Pages

22 October 2018

If the circular holes of an engine cylinder head are distorted, cracked, defective, etc., the normal running of the equipment will be affected. For detecting these faults with high accuracy, this paper proposes a detection method based on feature poi...

  • Article
  • Open Access
2,109 Views
17 Pages

Modulated Memory Network for Video Object Segmentation

  • Hannan Lu,
  • Zixian Guo and
  • Wangmeng Zuo

15 March 2024

Existing video object segmentation (VOS) methods based on matching techniques commonly employ a reference set comprising historical segmented frames, referred to as ‘memory frames’, to facilitate the segmentation process. However, these m...

  • Article
  • Open Access
10 Citations
4,465 Views
19 Pages

Spatial Pattern of Residential Carbon Dioxide Emissions in a Rapidly Urbanizing Chinese City and Its Mismatch Effect

  • Heli Lu,
  • Guifang Liu,
  • Changhong Miao,
  • Chuanrong Zhang,
  • Yaoping Cui and
  • Jincai Zhao

15 March 2018

Cities undergoing rapid urbanization are characterized by quick successions of spatiotemporal patterns, meaning that traditional methods cannot adequately assess carbon emissions from urban residential areas, which prevents the study of spatial misma...

  • Article
  • Open Access
8 Citations
4,046 Views
17 Pages

Considering coherently-distributed (CD) sources are correlated with each other, a two-dimensional (2D) coherent CD source model is proposed according to the characteristics of an underwater acoustic channel. Under the assumption of small angular spre...

  • Article
  • Open Access
2 Citations
3,123 Views
22 Pages

11 October 2020

The detection and description of features is one basic technique for many visual robot navigation systems in both indoor and outdoor environments. Matched features from two or more images are used to solve navigation problems, e.g., by establishing s...

  • Article
  • Open Access
1 Citations
954 Views
19 Pages

8 March 2025

Three-dimensional reconstruction using a two-dimensional inverse synthetic aperture radar (ISAR) faces dual challenges: geometric distortion in initial point clouds caused by accumulated feature-matching errors and degraded reconstruction accuracy du...

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