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Object Detection (OD) is an important task in Computer Vision with many practical applications. For some use cases, OD must be done on videos, where the object of interest has a periodic motion. In this paper, we formalize the problem of…

Computer Vision and Pattern Recognition · Computer Science 2020-09-30 Joris Guerin , Anne Magaly de Paula Canuto , Luiz Marcos Garcia Goncalves

Anomaly detection in medical imaging is a challenging task in contexts where abnormalities are not annotated. This problem can be addressed through unsupervised anomaly detection (UAD) methods, which identify features that do not match with…

Image and Video Processing · Electrical Eng. & Systems 2023-09-07 Geoffroy Oudoumanessah , Carole Lartizien , Michel Dojat , Florence Forbes

Skew estimation is one of the vital tasks in document processing systems, especially for scanned document images, because its performance impacts subsequent steps directly. Over the years, an enormous number of researches focus on this…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Luan Pham , Phu Hao Hoang , Xuan Toan Mai , Tuan Anh Tran

Automatic Differentiation (AD) is instrumental for science and industry. It is a tool to evaluate the derivative of a function specified through a computer program. The range of AD application domain spans from Machine Learning to Robotics…

Mathematical Software · Computer Science 2023-03-01 Ioana Ifrim , Vassil Vassilev , David J Lange

Multi-modal image registration is a crucial pre-processing step in many medical applications. However, it is a challenging task due to the complex intensity relationships between different imaging modalities, which can result in large…

Computer Vision and Pattern Recognition · Computer Science 2023-09-07 Vasiliki Sideri-Lampretsa , Veronika A. Zimmer , Huaqi Qiu , Georgios Kaissis , Daniel Rueckert

Algorithmic Differentiation (AD) can be used to automate the generation of derivatives in arbitrary software projects. This will generate maintainable derivatives, that are always consistent with the computation of the software. If a domain…

Mathematical Software · Computer Science 2018-03-13 Max Sagebaum , Nicolas R. Gauger

Autonomous vehicle (AV) systems rely on robust perception models as a cornerstone of safety assurance. However, objects encountered on the road exhibit a long-tailed distribution, with rare or unseen categories posing challenges to a…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Mingfu Liang , Jong-Chyi Su , Samuel Schulter , Sparsh Garg , Shiyu Zhao , Ying Wu , Manmohan Chandraker

This article explores how to effectively incorporate curvature information generated using SIMD-parallel forward-mode Algorithmic Differentiation (AD) into unconstrained Quasi-Newton (QN) minimization of a smooth objective function, $f$.…

Optimization and Control · Mathematics 2022-01-10 Joy Azzam , Daniel Henderson , Benjamin Ong , Allan Struthers

Derivatives of differential equation solutions are commonly for parameter estimation, fitting neural differential equations, and as model diagnostics. However, with a litany of choices and a Cartesian product of potential methods, it can be…

Numerical Analysis · Computer Science 2021-07-21 Yingbo Ma , Vaibhav Dixit , Mike Innes , Xingjian Guo , Christopher Rackauckas

Deep neural networks for aerial image segmentation require large amounts of labeled data, but high-quality aerial datasets with precise annotations are scarce and costly to produce. To address this limitation, we propose a self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Rupert Polley , Sai Vignesh Abishek Deenadayalan , J. Marius Zöllner

Surface registration, the task of aligning several multidimensional point sets, is a necessary task in many scientific fields. In this work, a novel statistical approach is developed to solve the problem of nonrigid registration. While the…

Methodology · Statistics 2020-06-15 Ashton Wiens , William Kleiber , Douglas Nychka , Katherine R. Barnhart

Automatic differentiation is everywhere, but there exists only minimal documentation of how it works in complex arithmetic beyond stating "derivatives in $\mathbb{C}^d$" $\cong$ "derivatives in $\mathbb{R}^{2d}$" and, at best, shallow…

Mathematical Software · Computer Science 2024-12-11 Nicholas Krämer

We consider the problem of editing 3D objects and scenes based on open-ended language instructions. A common approach to this problem is to use a 2D image generator or editor to guide the 3D editing process, obviating the need for 3D data.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Minghao Chen , Iro Laina , Andrea Vedaldi

Forward Automatic Differentiation (AD) is a technique for augmenting programs to compute derivatives. The essence of Forward AD is to attach perturbations to each number, and propagate these through the computation. When derivatives are…

Symbolic Computation · Computer Science 2019-09-23 Oleksandr Manzyuk , Barak A. Pearlmutter , Alexey Andreyevich Radul , David R. Rush , Jeffrey Mark Siskind

The explication of Convolutional Neural Networks (CNN) through xAI techniques often poses challenges in interpretation. The inherent complexity of input features, notably pixels extracted from images, engenders complex correlations.…

Computer Vision and Pattern Recognition · Computer Science 2024-05-16 Caroline Mazini Rodrigues , Nicolas Boutry , Laurent Najman

Modern applications such as self-driving cars and drones rely heavily upon robust object detection techniques. However, weather corruptions can hinder the object detectability and pose a serious threat to their navigation and reliability.…

Image and Video Processing · Electrical Eng. & Systems 2022-04-06 Aboli Marathe , Pushkar Jain , Rahee Walambe , Ketan Kotecha

We present a new model, training procedure and architecture to create precise maps of distinction between two classes of images. The objective is to comprehend, in pixel-wise resolution, the unique characteristics of a class. These maps can…

Computer Vision and Pattern Recognition · Computer Science 2023-05-05 Elnatan Kadar , Jonathan Brokman , Guy Gilboa

Detecting road features is a key enabler for autonomous driving and localization. For instance, a reliable detection of poles which are widespread in road environments can improve localization. Modern deep learning-based perception systems…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Maxime Noizet , Philippe Xu , Philippe Bonnifait

The goal of anomaly detection is to identify examples that deviate from normal or expected behavior. We tackle this problem for images. We consider a two-phase approach. First, using normal examples, a convolutional autoencoder (CAE) is…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 Natasa Sarafijanovic-Djukic , Jesse Davis

Image anomaly detection (IAD) is an emerging and vital computer vision task in industrial manufacturing (IM). Recently, many advanced algorithms have been reported, but their performance deviates considerably with various IM settings. We…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Guoyang Xie , Jinbao Wang , Jiaqi Liu , Jiayi Lyu , Yong Liu , Chengjie Wang , Feng Zheng , Yaochu Jin