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High fidelity representation of shapes with arbitrary topology is an important problem for a variety of vision and graphics applications. Owing to their limited resolution, classical discrete shape representations using point clouds, voxels…

Computer Vision and Pattern Recognition · Computer Science 2020-12-15 Rahul Venkatesh , Sarthak Sharma , Aurobrata Ghosh , Laszlo Jeni , Maneesh Singh

We present a novel method, called NeuralUDF, for reconstructing surfaces with arbitrary topologies from 2D images via volume rendering. Recent advances in neural rendering based reconstruction have achieved compelling results. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Xiaoxiao Long , Cheng Lin , Lingjie Liu , Yuan Liu , Peng Wang , Christian Theobalt , Taku Komura , Wenping Wang

Direct numerical simulation of microscale fluid--structure interactions in multicomponent and multiphase flows requires methods that can represent moving boundaries together with fields constrained to evolving interfaces. Diffuse-domain…

Biological Physics · Physics 2026-05-14 Xinpeng Xu

All hand-object interaction is controlled by forces that the two bodies exert on each other, but little work has been done in modeling these underlying forces when doing pose and contact estimation from RGB/RGB-D data. Given the pose of the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-26 Akarsh Kumar , Aditya R. Vaidya , Alexander G. Huth

We introduce a general, scalable computational framework for multi-axis 3D printing based on implicit neural fields (INFs) that unifies all stages of toolpath generation and global collision-free motion planning. In our pipeline, input…

Robotics · Computer Science 2025-09-09 Jiasheng Qu , Zhuo Huang , Dezhao Guo , Hailin Sun , Aoran Lyu , Chengkai Dai , Yeung Yam , Guoxin Fang

Neural distance fields (NDF) have emerged as a powerful tool for addressing challenges in 3D computer vision and graphics downstream problems. While significant progress has been made to learn NDF from various kind of sensor data, a crucial…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Akshit Singh , Karan Bhakuni , Rajendra Nagar

Collision detection is essential to virtually all robotics applications. However, traditional geometric collision detection methods generally require pre-existing workspace geometry representations; thus, they are unable to infer the…

Robotics · Computer Science 2023-09-15 Gabriel Guo , Judah Goldfeder , Aniv Ray , Tony Dear , Hod Lipson

We present differentiable point-based inverse rendering, DPIR, an analysis-by-synthesis method that processes images captured under diverse illuminations to estimate shape and spatially-varying BRDF. To this end, we adopt point-based…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Hoon-Gyu Chung , Seokjun Choi , Seung-Hwan Baek

Differentiable physics enables efficient gradient-based optimizations of neural network (NN) controllers. However, existing work typically only delivers NN controllers with limited capability and generalizability. We present a practical…

Artificial Intelligence · Computer Science 2023-10-31 Yu Fang , Jiancheng Liu , Mingrui Zhang , Jiasheng Zhang , Yidong Ma , Minchen Li , Yuanming Hu , Chenfanfu Jiang , Tiantian Liu

Signed distance functions (SDFs) is an attractive framework that has recently shown promising results for 3D shape reconstruction from images. SDFs seamlessly generalize to different shape resolutions and topologies but lack explicit…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Zerui Chen , Shizhe Chen , Cordelia Schmid , Ivan Laptev

Physics-based differentiable rendering has emerged as a powerful technique in computer graphics and vision, with a broad range of applications in solving inverse rendering tasks. At its core, differentiable rendering enables the computation…

Graphics · Computer Science 2025-04-03 Yunfan Zeng , Guangyan Cai , Shuang Zhao

With diverse presentation forgery methods emerging continually, detecting the authenticity of images has drawn growing attention. Although existing methods have achieved impressive accuracy in training dataset detection, they still perform…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Yingxin Lai , Guoqing Yang Yifan He , Zhiming Luo , Shaozi Li

Generating high-quality whole-body human object interaction motion sequences is becoming increasingly important in various fields such as animation, VR/AR, and robotics. The main challenge of this task lies in determining the level of…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Yonghao Zhang , Qiang He , Yanguang Wan , Yinda Zhang , Xiaoming Deng , Cuixia Ma , Hongan Wang

Differentiable Filters, as recursive Bayesian estimators, possess the ability to learn complex dynamics by deriving state transition and measurement models exclusively from data. This data-driven approach eliminates the reliance on explicit…

Robotics · Computer Science 2023-11-14 Xiao Liu , Yifan Zhou , Shuhei Ikemoto , Heni Ben Amor

Discrete simulation methods are efficient tools to investigate the complex behaviors of complex fluids made of either dry granular materials or dilute suspensions. By contrast, materials made of soft and/or concentrated units (emulsions,…

Fluid Dynamics · Physics 2008-12-18 Pierre Rognon , Cyprien Gay

The basic problem of shape complementarity analysis appears fundamental to applications as diverse as mechanical design, assembly automation, robot motion planning, micro- and nano-fabrication, protein-ligand binding, and rational drug…

Computational Geometry · Computer Science 2017-12-05 Morad Behandish , Horea T. Ilies

High-fidelity physics simulation is essential for scalable robotic learning, but the sim-to-real gap persists, especially for tasks involving complex, dynamic, and discontinuous interactions like physical contacts. Explicit system…

Robotics · Computer Science 2026-01-21 Changwei Jing , Jai Krishna Bandi , Jianglong Ye , Yan Duan , Pieter Abbeel , Xiaolong Wang , Sha Yi

We present a newly developed approach for the calculation of interfacial stiffness and contact area evolution between two rough bodies exhibiting self affine surface structures. Using spline assisted discretization to define localised…

Soft Condensed Matter · Physics 2021-06-04 Dorian Hanaor , Yixiang Gan , Itai Einav

Realistic virtual humans play a crucial role in numerous industries, such as metaverse, intelligent healthcare, and self-driving simulation. But creating them on a large scale with high levels of realism remains a challenge. The utilization…

Computer Vision and Pattern Recognition · Computer Science 2023-10-18 Xueting Yang , Yihao Luo , Yuliang Xiu , Wei Wang , Hao Xu , Zhaoxin Fan

Molecular-level understanding of the interactions between the constituents of an atomic structure is essential for designing novel materials in various applications. This need goes beyond the basic knowledge of the number and types of…

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