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In this paper we present a new method, which allows for the construction of triangular isosurfaces from three-dimensional data sets, such as 3D image data and/or numerical simulation data that are based on regularly shaped, cubic lattices.…

Computational Geometry · Computer Science 2012-06-11 B. R. Schlei

High-resolution simulations often rely on the Adaptive Mesh Resolution (AMR) technique to optimize memory consumption versus attainable precision. While this technique allows for dramatic improvements in terms of computing performance, the…

Data Structures and Algorithms · Computer Science 2013-01-03 Marc Labadens , Daniel Pomarède , Damien Chapon , Romain Teyssier , Frédéric Bournaud , Florent Renaud , Nicolas Grandjouan

Unsupervised human motion segmentation (HMS) can be effectively achieved using subspace clustering techniques. However, traditional methods overlook the role of temporal semantic exploration in HMS. This paper explores the use of temporal…

Machine Learning · Computer Science 2025-12-30 Zheng Xing , Weibing Zhao

Volumetric maps are widely used in robotics due to their desirable properties in applications such as path planning, exploration, and manipulation. Constant advances in mapping technologies are needed to keep up with the improvements in…

Robotics · Computer Science 2023-06-05 Victor Reijgwart , Cesar Cadena , Roland Siegwart , Lionel Ott

The compression of real-world scanned 3D human dynamic meshes is an emerging research area, driven by applications such as telepresence, virtual reality, and 3D digital streaming. Unlike synthesized dynamic meshes with fixed topology,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-04 Huong Hoang , Truong Nguyen , Pamela Cosman

Until now, it has been difficult for volumetric super-resolution to utilize the recent advances in transformer-based models seen in 2D super-resolution. The memory required for self-attention in 3D volumes limits the receptive field.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 August Leander Høeg , Sophia W. Bardenfleth , Hans Martin Kjer , Tim B. Dyrby , Vedrana Andersen Dahl , Anders Dahl

Time-varying connectivity of triangle mesh sequences leads to substantial difficulties in their processing. Unlike editing sequences with constant connectivity, editing sequences with varying connectivity requires addressing the problem of…

Graphics · Computer Science 2024-05-09 Filip Hácha , Jan Dvořák , Zuzana Káčereková , Libor Váša

In this paper, we propose an efficient approach for the compression and representation of volumetric data utilizing coordinate-based networks and multi-resolution hash encoding. Efficient compression of volumetric data is crucial for…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Sudarshan Devkota , Sumanta Pattanaik

We present a differentiable volume rendering solution that provides differentiability of all continuous parameters of the volume rendering process. This differentiable renderer is used to steer the parameters towards a setting with an…

Graphics · Computer Science 2022-07-26 Sebastian Weiss , Rüdiger Westermann

With recent video object segmentation (VOS) benchmarks evolving to challenging scenarios, we revisit a simple but overlooked strategy: restricting the size of memory banks. This diverges from the prevalent practice of expanding memory banks…

Computer Vision and Pattern Recognition · Computer Science 2025-01-15 Junbao Zhou , Ziqi Pang , Yu-Xiong Wang

The volumetric stretch energy has been widely applied to the computation of volume-/mass-preserving parameterizations of simply connected tetrahedral mesh models. However, this approach still lacks theoretical support. In this paper, we…

Numerical Analysis · Mathematics 2022-10-19 Tsung-Ming Huang , Wei-Hung Liao , Wen-Wei Lin , Mei-Heng Yueh , Shing-Tung Yau

Differentiable rendering is a technique that aims to invert the rendering process to enable optimizing rendering parameters from a set of images. In this article, we present a differentiable volume rendering solution called DiffTetVR for…

Graphics · Computer Science 2026-01-05 Christoph Neuhauser

Implicit neural representations (INRs) have been successfully used to compress a variety of 3D surface representations such as Signed Distance Functions (SDFs), voxel grids, and also other forms of structured data such as images, videos,…

Graphics · Computer Science 2025-04-03 Sai Karthikey Pentapati , Gregoire Phillips , Alan C. Bovik

In computer graphics, animation compression is essential for efficient storage, streaming and reproduction of animated meshes. Previous work has presented efficient techniques for compression by deriving skinning transformations and weights…

Graphics · Computer Science 2023-11-09 Anastasia Moutafidou , Vasileios Toulatzis , Ioannis Fudos

Volumetric data compression is critical in fields like medical imaging, scientific simulation, and entertainment. We introduce a structure-free neural compression method combining Fourierfeature encoding with selective voxel sampling,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Leona Žůrková , Petr Strakoš , Michal Kravčenko , Tomáš Brzobohatý , Lubomír Říha

This paper proposes a method for extracting speaker embedding for each speaker from a variable-length recording containing multiple speakers. Speaker embeddings are crucial not only for speaker recognition but also for various multi-speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-02 Shota Horiguchi , Atsushi Ando , Takafumi Moriya , Takanori Ashihara , Hiroshi Sato , Naohiro Tawara , Marc Delcroix

Mesh-based scene representation offers a promising direction for simplifying large-scale hierarchical visual localization pipelines, combining a visual place recognition step based on global features (retrieval) and a visual localization…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Gabriele Berton , Lorenz Junglas , Riccardo Zaccone , Thomas Pollok , Barbara Caputo , Carlo Masone

3D motion estimation from cine cardiac magnetic resonance (CMR) images is important for the assessment of cardiac function and the diagnosis of cardiovascular diseases. Current state-of-the art methods focus on estimating dense…

Image and Video Processing · Electrical Eng. & Systems 2023-09-26 Qingjie Meng , Wenjia Bai , Declan P O'Regan , and Daniel Rueckert

Video Object Segmentation (VOS) is foundational to numerous computer vision applications, including surveillance, autonomous driving, robotics and generative video editing. However, existing VOS models often struggle with precise mask…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Elham Soltani Kazemi , Imad Eddine Toubal , Gani Rahmon , Jaired Collins , K. Palaniappan

Recent advances in bioimaging have provided scientists a superior high spatial-temporal resolution to observe dynamics of living cells as 3D volumetric videos. Unfortunately, the 3D biomedical video analysis is lagging, impeded by resource…

Computer Vision and Pattern Recognition · Computer Science 2021-06-23 Mengyang Zhao , Quan Liu , Aadarsh Jha , Ruining Deng , Tianyuan Yao , Anita Mahadevan-Jansen , Matthew J. Tyska , Bryan A. Millis , Yuankai Huo