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Related papers: PHODCOS: Pythagorean Hodograph-based Differentiabl…

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We propose a fully convolutional one-stage object detector (FCOS) to solve object detection in a per-pixel prediction fashion, analogue to semantic segmentation. Almost all state-of-the-art object detectors such as RetinaNet, SSD, YOLOv3,…

Computer Vision and Pattern Recognition · Computer Science 2019-08-21 Zhi Tian , Chunhua Shen , Hao Chen , Tong He

We describe an asynchronous parallel stochastic coordinate descent algorithm for minimizing smooth unconstrained or separably constrained functions. The method achieves a linear convergence rate on functions that satisfy an essential strong…

Optimization and Control · Mathematics 2014-11-12 Ji Liu , Stephen J. Wright , Christopher Ré , Victor Bittorf , Srikrishna Sridhar

Due to Poinsot's theorem, the motion of a rigid body about a fixed point is represented as rolling without slipping of the moving hodograph of the angular velocity over the fixed one. If the moving hodograph is a closed curve, visualization…

Exactly Solvable and Integrable Systems · Physics 2013-12-25 Irina I. Kharlamova , Alexander Yu. Savushkin

Cartograms are maps that rescale geographic regions (e.g., countries, districts) such that their areas are proportional to quantitative demographic data (e.g., population size, gross domestic product). Unlike conventional bar or pie charts,…

Computational Geometry · Computer Science 2019-11-12 Michael T. Gastner , Vivien Seguy , Pratyush More

We present a new method for estimating the 6D pose of rigid objects with available 3D models from a single RGB input image. The method is applicable to a broad range of objects, including challenging ones with global or partial symmetries.…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Tomas Hodan , Daniel Barath , Jiri Matas

We present the DONUTS autoguiding algorithm, designed to fix stellar positions at the sub-pixel level for high-cadence time-series photometry, which is also capable of autoguiding on defocused stars. DONUTS was designed to calculate guide…

Instrumentation and Methods for Astrophysics · Physics 2015-06-15 J. McCormac , D. Pollacco , I. Skillen , F. Faedi , I. Todd , C. A. Watson

We develop and commercialize autonomous machines, such as logistic robots and self-driving cars, around the globe. A critical challenge to our -- and any -- autonomous machine is accurate and efficient localization under resource…

Hardware Architecture · Computer Science 2021-04-30 Yiming Gan , Bo Yu , Boyuan Tian , Leimeng Xu , Wei Hu , Shaoshan Liu , Qiang Liu , Yanjun Zhang , Jie Tang , Yuhao Zhu

We consider the solution of initial value problems within the context of hybrid systems and emphasise the use of high precision approximations (in software for exact real arithmetic). We propose a novel algorithm for the computation of…

Mathematical Software · Computer Science 2010-06-03 Norbert Th. Müller , Margarita Korovina

Many robotics applications benefit from being able to compute multiple locally optimal paths in a given configuration space. Examples include path planning for of tethered robots with cable-length constraints, systems involving cables,…

Robotics · Computer Science 2023-07-12 Alp Sahin , Subhrajit Bhattacharya

Context. High-resolution numerical methods have been developed for nonlinear, discontinuous problems as they appear in simulations of astrophysical objects. One of the strategies applied is the concept of artificial viscosity. Aims.…

Instrumentation and Methods for Astrophysics · Physics 2013-06-19 Harald Höller , Antti Koskela , Ernst Dorfi , Werner Benger

We describe a $O(\log n )$-approximation algorithm for computing the homotopic \Frechet distance between two polygonal curves that lie on the boundary of a triangulated topological disk. Prior to this work, algorithms were known only for…

Computational Geometry · Computer Science 2015-09-02 Sariel Har-Peled , Amir Nayyeri , Mohammad Salavatipour , Anastasios Sidiropoulos

We establish new theoretical convergence guarantees for the difference-of-convex algorithm (DCA), where the second function is allowed to be weakly-convex, measuring progress via composite gradient mapping. Based on a tight analysis of two…

Optimization and Control · Mathematics 2026-01-23 Teodor Rotaru , Panagiotis Patrinos , François Glineur

This paper focuses on coordinate update methods, which are useful for solving problems involving large or high-dimensional datasets. They decompose a problem into simple subproblems, where each updates one, or a small block of, variables…

Optimization and Control · Mathematics 2016-08-16 Zhimin Peng , Tianyu Wu , Yangyang Xu , Ming Yan , Wotao Yin

Achieving a balance between accuracy and efficiency is a critical challenge in facial landmark detection (FLD). This paper introduces Parallel Optimal Position Search (POPoS), a high-precision encoding-decoding framework designed to address…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Chong-Yang Xiang , Jun-Yan He , Zhi-Qi Cheng , Xiao Wu , Xian-Sheng Hua

The Gateway will represent a primary space system useful for the Artemis program, Earth-Moon transportation, and deep space exploration. It is expected to serve as a staging location on the way to the lunar surface. This study focuses on…

Systems and Control · Electrical Eng. & Systems 2024-06-03 Chiara Pozzi , Mauro Pontani , Alessandro Beolchi , Elena Fantino

Quantum support vector machines have the potential to achieve a quantum speedup for solving certain machine learning problems. The key challenge for doing so is finding good quantum kernels for a given data set -- a task called kernel…

Quantum Physics · Physics 2023-12-08 Gian Gentinetta , David Sutter , Christa Zoufal , Bryce Fuller , Stefan Woerner

Autonomous satellite servicing missions must execute close-range rendezvous under stringent safety and operational constraints while remaining computationally tractable for onboard use and robust to uncertainty in sensing, actuation, and…

Robotics · Computer Science 2026-02-16 Minduli C. Wijayatunga , Julian Guinane , Nathan D. Wallace , Xiaofeng Wu

The regression of 3D Human Pose and Shape (HPS) from an image is becoming increasingly accurate. This makes the results useful for downstream tasks like human action recognition or 3D graphics. Yet, no regressor is perfect, and accuracy can…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Sai Kumar Dwivedi , Cordelia Schmid , Hongwei Yi , Michael J. Black , Dimitrios Tzionas

Transverse linearization-based approaches have become among the most prominent methods for orbitally stabilizing feedback design in regards to (periodic) motions of underactuated mechanical systems. Yet, in an $n$-dimensional state-space,…

Systems and Control · Electrical Eng. & Systems 2020-05-05 Christian Fredrik Sætre , Anton Shiriaev , Stepan Pchelkin , Ahmed Chemori

Curves are essential concepts that enable compounded aesthetic curves, e.g., to assemble complex silhouettes, match a specific curvature profile in industrial design, and construct smooth, comfortable, and safe trajectories in vehicle-robot…

Computational Geometry · Computer Science 2021-07-21 Victor Parque