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Modern applications such as voice recognition rely on the ability to compare signals to pre-recorded ones to classify them. However, this comparison typically needs to ignore differences due to signal noise, temporal offset, signal…

Machine Learning · Computer Science 2022-06-16 Arvind Seshan

Dynamic Time Warping (DTW) is an algorithm to align temporal sequences with possible local non-linear distortions, and has been widely applied to audio, video and graphics data alignments. DTW is essentially a point-to-point matching method…

Computer Vision and Pattern Recognition · Computer Science 2016-06-07 Jiaping Zhao , Laurent Itti

During the last decades, international attempts have been made to develop realistic space weather prediction tools aiming to forecast the conditions on the Sun and in the interplanetary environment. These efforts have led to the development…

Low-cost mobile rovers often operate on uneven terrain where small bumps or tilts are difficult to perceive visually but can significantly affect locomotion stability. To address this problem, we explore a smartphone-based structured-light…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Tanaka Nobuaki

The continuous increase in global population and the impact of climate change on crop production are expected to affect the food sector significantly. In this context, there is need for timely, large-scale and precise mapping of crops for…

Computer Vision and Pattern Recognition · Computer Science 2022-11-11 Hyun-Woo Jo , Alkiviadis Koukos , Vasileios Sitokonstantinou , Woo-Kyun Lee , Charalampos Kontoes

Accurate and timely crop mapping is essential for yield estimation, insurance claims, and conservation efforts. Over the years, many successful machine learning models for crop mapping have been developed that use just the multi-spectral…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Praveen Ravirathinam , Rahul Ghosh , Ankush Khandelwal , Xiaowei Jia , David Mulla , Vipin Kumar

In instruction conditioned navigation, agents interpret natural language and their surroundings to navigate through an environment. Datasets for studying this task typically contain pairs of these instructions and reference trajectories.…

Robotics · Computer Science 2019-12-02 Gabriel Ilharco , Vihan Jain , Alexander Ku , Eugene Ie , Jason Baldridge

Monitoring agricultural activities is important to ensure food security. Remote sensing plays a significant role for large-scale continuous monitoring of cultivation activities. Time series remote sensing data were used for the generation…

Machine Learning · Computer Science 2024-11-20 Kazi Hasibul Kabir , Md. Zahiruddin Aqib , Sharmin Sultana , Shamim Akhter

Crop mapping involves identifying and classifying crop types using spatial data, primarily derived from remote sensing imagery. This study presents the first comprehensive review of large-scale, pixel-wise crop mapping workflows,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Judy Long , Tao Liu , Sean Alexander Woznicki , Miljana Marković , Oskar Marko , Molly Sears

Accurate in-season crop type classification is crucial for the crop production estimation and monitoring of agricultural parcels. However, the complexity of the plant growth patterns and their spatio-temporal variability present significant…

Computer Vision and Pattern Recognition · Computer Science 2023-11-09 Valentin Barriere , Martin Claverie , Maja Schneider , Guido Lemoine , Raphaël d'Andrimont

Change monitoring is an essential task for cranberry farming as it provides both breeders and growers with the ability to analyze growth, predict yield, and make treatment decisions. However, this task is often done manually, requiring…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Ronan John , Anis Chihoub , Ryan Meegan , Gina Sidelli , Jeffery Neyhart , Peter Oudemans , Kristin Dana

Dictionary learning is an effective tool for pattern recognition and classification of time series data. Among various dictionary learning techniques, the dynamic time warping (DTW) is commonly used for dealing with temporal delays,…

Machine Learning · Statistics 2023-07-03 Ruiyu Xu , Chao Wang , Yongxiang Li , Jianguo Wu

Temporal alignment of sequences is a fundamental challenge in many applications, such as computer vision and bioinformatics, where local time shifting needs to be accounted for. Misalignment can lead to poor model generalization, especially…

Machine Learning · Computer Science 2025-01-10 Afek Steinberg , Ran Eisenberg , Ofir Lindenbaum

Driven by abundant satellite imagery, machine learning-based approaches have recently been promoted to generate high-resolution crop cultivation maps to support many agricultural applications. One of the major challenges faced by these…

Computer Vision and Pattern Recognition · Computer Science 2024-08-07 Yiqun Wang , Hui Huang , Radu State

We propose a novel time series averaging method based on Dynamic Time Warping (DTW). In contrast to previous methods, our algorithm preserves durational information and the distinctive durational features of the sequences due to a simple…

Computer Vision and Pattern Recognition · Computer Science 2021-09-03 George Sioros , Kristian Nymoen

This paper addresses learning end-to-end models for time series data that include a temporal alignment step via dynamic time warping (DTW). Existing approaches to differentiable DTW either differentiate through a fixed warping path or apply…

Machine Learning · Computer Science 2023-03-21 Ming Xu , Sourav Garg , Michael Milford , Stephen Gould

Dynamic Time Warping (DTW), and its constrained (CDTW) and weighted (WDTW) variants, are time series distances with a wide range of applications. They minimize the cost of non-linear alignments between series. CDTW and WDTW have been…

Machine Learning · Computer Science 2021-11-29 Matthieu Herrmann , Geoffrey I. Webb

Here we present an automated method for obtaining wavelength calibrations for one-dimensional spectra, using Dynamic Time Warping (DTW). DTW is a flexible and well-understood algorithm for pattern matching, which has not been widely used in…

Existing Deep Neural Nets on crops growth prediction mostly rely on availability of a large amount of data. In practice, it is difficult to collect enough high-quality data to utilize the full potential of these deep learning models. In…

Machine Learning · Computer Science 2022-02-25 Shengzhe Wang , Ling Wang , Zhihao Lin , Xi Zheng

Reducing the use of agrochemicals is an important component towards sustainable agriculture. Robots that can perform targeted weed control offer the potential to contribute to this goal, for example, through specialized weeding actions such…

Computer Vision and Pattern Recognition · Computer Science 2018-06-12 Philipp Lottes , Jens Behley , Andres Milioto , Cyrill Stachniss
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