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Covalent Organic Frameworks (COFs) have gained significant popularity in recent years due to their unique ability to provide a high surface area and customizable pore geometry and chemistry. These traits make COFs a highly promising choice…

Materials Science · Physics 2023-12-21 Felipe Lopes Oliveira , Pierre Mothé Esteves

Point clouds are a set of data points in space to represent the 3D geometry of objects. A fundamental step in the processing is to identify a subset of points to represent the shape. While traditional sampling methods often ignore to…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Pierre Onghena , Santiago Velasco-Forero , Beatriz Marcotegui

We develop PLATYPOS (PLAneTarY PhOtoevaporation Simulator), a python code to perform planetary photoevaporative mass-loss calculations for close-in planets with hydrogen-helium envelopes atop Earth-like rocky cores. With physical and model…

Earth and Planetary Astrophysics · Physics 2022-01-07 Laura Ketzer , Katja Poppenhaeger

Topographic laser scanning is a remote sensing method to create detailed 3D point cloud representations of the Earth's surface. Since data acquisition is expensive, simulations can complement real data given certain premises are available:…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Lukas Winiwarter , Alberto Manuel Esmorís Pena , Hannah Weiser , Katharina Anders , Jorge Martínez Sanchez , Mark Searle , Bernhard Höfle

We present the Variable Star PhasE Curve (VSPEC) Collection, a set of Python packages for simulating combined-light spectroscopic observations of 3-dimensional exoplanet atmospheres in the presence of stellar variability and inhomogeneity.…

A promising approach to improve cloud parameterizations within climate models and thus climate projections is to use deep learning in combination with training data from storm-resolving model (SRM) simulations. The ICOsahedral…

Atmospheric and Oceanic Physics · Physics 2023-04-18 Arthur Grundner , Tom Beucler , Pierre Gentine , Fernando Iglesias-Suarez , Marco A. Giorgetta , Veronika Eyring

Gradient-based algorithms are crucial to modern computer-vision and graphics applications, enabling learning-based optimization and inverse problems. For example, photorealistic differentiable rendering pipelines for color images have been…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Benjamin Planche , Rajat Vikram Singh

We have developed PyTIE (Python Topological Indices Expressions) which is defined as the collections of Python packages such as PyTIE D, PyTIE DS, PyTIE SMS DE, and PyTIE SMS DSE, which are open-source software packages and cross-platform…

Chemical Physics · Physics 2025-11-03 Sahaya Vijay Jeyaraj , Roy S , Govardhan S , Tony Augustine , Jyothish K

We present the first public release of ShapePipe, an open-source and modular weak-lensing measurement, analysis, and validation pipeline written in Python. We describe the design of the software and justify the choices made. We provide a…

Instrumentation and Methods for Astrophysics · Physics 2022-08-24 S. Farrens , A. Guinot , M. Kilbinger , T. Liaudat , L. Baumont , X. Jimenez , A. Peel , A. Pujol , M. Schmitz , J. -L. Starck , A. Z. Vitorelli

The conventional pose estimation of a 3D object usually requires the knowledge of the 3D model of the object. Even with the recent development in convolutional neural networks (CNNs), a 3D model is often necessary in the final estimation.…

Robotics · Computer Science 2019-01-01 Zhongang Cai , Cunjun Yu , Quang-Cuong Pham

Traditional 3D face models learn a latent representation of faces using linear subspaces from limited scans of a single database. The main roadblock of building a large-scale face model from diverse 3D databases lies in the lack of dense…

Computer Vision and Pattern Recognition · Computer Science 2019-08-15 Feng Liu , Luan Tran , Xiaoming Liu

Existing networks directly learn feature representations on 3D point clouds for shape analysis. We argue that 3D point clouds are highly redundant and hold irregular (permutation-invariant) structure, which makes it difficult to achieve…

Machine Learning · Computer Science 2020-07-21 Sameera Ramasinghe , Salman Khan , Nick Barnes , Stephen Gould

Here we introduce CRASH3, the latest release of the 3D radiative transfer code CRASH. In its current implementation CRASH3 integrates into the reference algorithm the code Cloudy to evaluate the ionisation states of metals,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 L. Graziani , A. Maselli , B. Ciardi

We introduce ShapeWords, an approach for synthesizing images based on 3D shape guidance and text prompts. ShapeWords incorporates target 3D shape information within specialized tokens embedded together with the input text, effectively…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Dmitry Petrov , Pradyumn Goyal , Divyansh Shivashok , Yuanming Tao , Melinos Averkiou , Evangelos Kalogerakis

The freud Python package is a powerful library for analyzing simulation data. Written with modern simulation and data analysis workflows in mind, freud provides a Python interface to fast, parallelized C++ routines that run efficiently on…

Point clouds are widely used in various fields, including augmented reality (AR) and robotics, where relighting and texture editing are crucial for realistic visualization. Achieving these tasks requires accurately separating albedo from…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Shogo Sato , Takuhiro Kaneko , Shoichiro Takeda , Tomoyasu Shimada , Kazuhiko Murasaki , Taiga Yoshida , Ryuichi Tanida , Akisato Kimura

We present a powerful new tool to analyse and disentangle the 3-D geometry and kinematic structure of gaseous nebulae. The method consists in combining commercially available digital animation software to simulate the 3-D structure and…

Astrophysics · Physics 2007-05-23 Wolfgang Steffen , Jose Alberto Lopez

The shapes and morphological features of grains in sand assemblies have far-reaching implications in many engineering applications, such as geotechnical engineering, computer animations, petroleum engineering, and concentrated solar power.…

Computational Engineering, Finance, and Science · Computer Science 2023-06-08 Nikolaos N. Vlassis , WaiChing Sun , Khalid A. Alshibli , Richard A. Regueiro

Semantic segmentation of raw 3D point clouds is an essential component in 3D scene analysis, but it poses several challenges, primarily due to the non-Euclidean nature of 3D point clouds. Although, several deep learning based approaches…

Computer Vision and Pattern Recognition · Computer Science 2020-12-01 Saqib Ali Khan , Yilei Shi , Muhammad Shahzad , Xiao Xiang Zhu

We describe Rabacus, a Python package for calculating the transfer of hydrogen ionizing radiation in simplified geometries relevant to astronomy and cosmology. We present example solutions for three specific cases: 1) a semi-infinite slab…

Cosmology and Nongalactic Astrophysics · Physics 2015-02-26 Gabriel Altay , John Wise
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