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Camera relocalization plays a vital role in many robotics and computer vision tasks, such as global localization, recovery from tracking failure, and loop closure detection. Recent random forests based methods directly predict 3D world…

Computer Vision and Pattern Recognition · Computer Science 2017-10-24 Lili Meng , Jianhui Chen , Frederick Tung , James J. Little , Julien Valentin , Clarence W. de Silva

Degraded rangelands undergo continual shifts in the appearance and distribution of plant life. The nature of these changes however is subtle: between seasons seedlings sprout up and some flourish while others perish, meanwhile, over…

Robotics · Computer Science 2023-12-14 Kristen Such , Harel Biggie , Christoffer Heckman

A common assumption in radar remote sensing studies for vegetation is that radar returns originate from a target made up by a set of uniformly distributed isotropic scatterers. Nonetheless, several studies in the literature have noted that…

Signal Processing · Electrical Eng. & Systems 2024-05-06 J. David Ballester-Berman

This paper proposes a multi-spectral random forest classifier with suitable feature selection and masking for tree cover estimation in urban areas. The key feature of the proposed classifier is filtering out the built-up region using…

Computer Vision and Pattern Recognition · Computer Science 2023-06-12 Usman Nazir , Momin Uppal , Muhammad Tahir , Zubair Khalid

Quick and accurate assessment of the damage state of buildings after natural disasters is crucial for undertaking properly targeted rescue and subsequent recovery operations, which can have a major impact on the safety of victims and the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Mateusz Żarski , Jarosław Adam Miszczak

A Discriminative Deep Forest (DisDF) as a metric learning algorithm is proposed in the paper. It is based on the Deep Forest or gcForest proposed by Zhou and Feng and can be viewed as a gcForest modification. The case of the fully…

Machine Learning · Statistics 2017-05-29 Lev V. Utkin , Mikhail A. Ryabinin

This paper presents a non-parametric approach for segmenting trees from airborne LiDAR data in deciduous forests. Based on the LiDAR point cloud, the approach collects crown information such as steepness and height on-the-fly to delineate…

Computer Vision and Pattern Recognition · Computer Science 2017-01-03 Hamid Hamraz , Marco A. Contreras , Jun Zhang

Measuring distances of cosmological sources such as galaxies, stars and quasars plays an increasingly critical role in modern cosmology. Obtaining the optical spectrum and consequently calculating the redshift as a distance indicator could…

Astrophysics of Galaxies · Physics 2022-01-13 Aidin Momtaz , Mohammad Hossein Salimi , Soroush Shakeri

Many future small satellite missions are aimed to provide low-cost remote sensing data at unprecedented revisit rates, with a ground resolution of less than one meter. This requires high resolution, fast and sensitive line-scan imagers…

Instrumentation and Methods for Astrophysics · Physics 2021-09-30 Swaraj Bandhu Mahato , Steven Thijs , Jonas Bentell , Linkun Wu , Klaas Tack , Pierre Boulenc , Dorian Lasnet , Renaud Van Langendonck , Piet De Moor

Farm parcel delineation provides cadastral data that is important in developing and managing climate change policies. Specifically, farm parcel delineation informs applications in downstream governmental policies of land allocation,…

Image and Video Processing · Electrical Eng. & Systems 2020-04-21 Han Lin Aung , Burak Uzkent , Marshall Burke , David Lobell , Stefano Ermon

The development of low-cost sensors and novel calibration algorithms offer new opportunities to supplement existing regulatory networks to measure air pollutants at a high spatial resolution and at hourly and sub-hourly timescales. We use a…

This paper presents an autonomous approach to tree detection and segmentation in high resolution airborne LiDAR that utilises state-of-the-art region-based CNN and 3D-CNN deep learning algorithms. If the number of training examples for a…

Robotics · Computer Science 2018-10-31 Lloyd Windrim , Mitch Bryson

Monitoring of reforestation is currently being considerably streamlined through the use of drones and image recognition algorithms, which have already proven to be effective on colour imagery. In addition to colour imagery, elevation data…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Jason Jooste , Michael Fromm , Matthias Schubert

Existing ocean front detection methods--including histogram-based variance analysis, Lyapunov exponent, gradient thresholding, and machine learning--suffer from critical limitations: discontinuous outputs, over-detection, reliance on…

Computer Vision and Pattern Recognition · Computer Science 2025-05-15 Yishuo Wang , Feng Zhou , Qicheng Meng , Muping Zhou , Zhijun Hu , Chengqing Zhang , Tianhao Zhao

Monitoring and controlling invasive tree species across large forests, parks, and trail networks is challenging due to limited accessibility, reliance on manual scouting, and degraded under-canopy GNSS. We present MapForest, a modular field…

Robotics · Computer Science 2026-03-25 Sandeep Zachariah , Francisco Yandun , Sachet Korada , Abhisesh Silwal

Solar irradiance is fundamental data crucial for analyses related to weather and climate. High-precision estimation models are necessary to create areal data for solar irradiance. In this study, we developed a novel estimation model by…

Atmospheric and Oceanic Physics · Physics 2024-07-08 Jun Sasaki , Maki Okada , Kenji Utsunomiya , Koji Yamaguchi

Mapping standing dead trees is critical for assessing forest health, monitoring biodiversity, and mitigating wildfire risks, for which aerial imagery has proven useful. However, dense canopy structures, spectral overlaps between living and…

Computer Vision and Pattern Recognition · Computer Science 2026-05-06 Anis Ur Rahman , Einari Heinaro , Mete Ahishali , Samuli Junttila

Existing remote sensing change detection methods are heavily affected by seasonal variation. Since vegetation colors are different between winter and summer, such variations are inclined to be falsely detected as changes. In this letter, we…

Computer Vision and Pattern Recognition · Computer Science 2022-02-16 Tiange Zhang , Feng Gao , Junyu Dong , Qian Du

This study introduces a novel dataset for segmenting flooded areas in satellite images. After reviewing 77 existing benchmarks utilizing satellite imagery, we identified a shortage of suitable datasets for this specific task. To fill this…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Youngsun Jang , Dongyoun Kim , Chulwoo Pack , Kwanghee Won

Tropical forests represent the home of many species on the planet for flora and fauna, retaining billions of tons of carbon footprint, promoting clouds and rain formation, implying a crucial role in the global ecosystem, besides…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Guilherme A. Pimenta , Fernanda B. J. R. Dallaqua , Alvaro Fazenda , Fabio A. Faria