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Constructing simulation scenes that are both visually and physically realistic is a problem of practical interest in domains ranging from robotics to computer vision. This problem has become even more relevant as researchers wielding large…

This paper proposes optimal beam patterns of analog beamforming for SU (Single User) massive MIMO (Multi-Input Multi-Output) transmission systems. For hybrid beamforming in SU massive MIMO systems, there are several design parameters such…

Information Theory · Computer Science 2018-12-17 Maki Arai , Kei Sakaguchi , Kiyomichi Araki

Blood vessel networks in the brain play a crucial role in stroke research, where understanding their topology is essential for analyzing blood flow dynamics. However, extracting detailed topological vessel network information from…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Joël Mathys , Andreas Plesner , Jorel Elmiger , Roger Wattenhofer

Superpixels offer a compact image representation by grouping pixels into coherent regions. Recent methods have reached a plateau in terms of segmentation accuracy by generating noisy superpixel shapes. Moreover, most existing approaches…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Julien Walther , Rémi Giraud , Michaël Clément

In this article we describe an algorithm that can be applied for the generation of various classes of maps on orientable surfaces. It uses existing generators for abstract graphs and combines them with an efficient embedding and isomorphism…

Combinatorics · Mathematics 2024-08-30 Gunnar Brinkmann

Most machine learning-based coronary artery segmentation methods represent the vascular lumen surface in an implicit way by the centerline and the associated lumen radii, which makes the subsequent modeling process to generate a whole piece…

Computer Vision and Pattern Recognition · Computer Science 2016-06-10 Haoyin Zhou , James K. Min , Guanglei Xiong

The study of neurocognitive tasks requiring accurate localisation of activity often rely on functional Magnetic Resonance Imaging, a widely adopted technique that makes use of a pipeline of data processing modules, each involving a variety…

Computer Vision and Pattern Recognition · Computer Science 2016-10-14 Albert Vilamala , Kristoffer Hougaard Madsen , Lars Kai Hansen

Hippocampal atrophy in Alzheimer's disease (AD) is asymmetric and spatially inhomogeneous. While extensive work has been done on volume and shape analysis of atrophy of the hippocampus in AD, less attention has been given to hippocampal…

Image and Video Processing · Electrical Eng. & Systems 2024-09-20 Shen Zhu , Ifrah Zawar , Jaideep Kapur , P. Thomas Fletcher

Three-dimensional (3D) technologies have been developing rapidly recent years, and have influenced industrial, medical, cultural, and many other fields. In this paper, we introduce an automatic 3D human head scanning-printing system, which…

Robotics · Computer Science 2023-01-02 Longyu Zhang , Bote Han , Haiwei Dong , Abdulmotaleb El Saddik

Undersampled CT volumes minimize acquisition time and radiation exposure but introduce artifacts degrading image quality and diagnostic utility. Reducing these artifacts is critical for high-quality imaging. We propose a computationally…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Johannes Thalhammer , Tina Dorosti , Sebastian Peterhansl , Daniela Pfeiffer , Franz Pfeiffer , Florian Schaff

The study of physiology demonstrates that the form (shape)of anatomical structures dictates their functions, and analyzing the form of anatomies plays a crucial role in clinical research. Statistical shape modeling (SSM) is a widely used…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Krithika Iyer , Shireen Y. Elhabian

Reenacting facial images is an important task that can find numerous applications. We proposed IFaceUV, a fully differentiable pipeline that properly combines 2D and 3D information to conduct the facial reenactment task. The…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Hansol Lee , Yunhoe Ku , Eunseo Kim , Seungryul Baek

Auto-Regressive (AR) models have achieved impressive results in 2D image generation by modeling joint distributions in the grid space. While this approach has been extended to the 3D domain for powerful shape generation, it still has two…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Simian Luo , Xuelin Qian , Yanwei Fu , Yinda Zhang , Ying Tai , Zhenyu Zhang , Chengjie Wang , Xiangyang Xue

We investigate the performance of fully convolutional networks to simulate the motion and interaction of surface waves in open and closed complex geometries. We focus on a U-Net architecture and analyse how well it generalises to geometric…

Machine Learning · Computer Science 2020-12-02 Mario Lino , Chris Cantwell , Stathi Fotiadis , Eduardo Pignatelli , Anil Bharath

In this paper we propose a deep learning approach for segmenting sub-cortical structures of the human brain in Magnetic Resonance (MR) image data. We draw inspiration from a state-of-the-art Fully-Convolutional Neural Network (F-CNN)…

Computer Vision and Pattern Recognition · Computer Science 2016-02-08 Mahsa Shakeri , Stavros Tsogkas , Enzo Ferrante , Sarah Lippe , Samuel Kadoury , Nikos Paragios , Iasonas Kokkinos

Recently, many methods have been proposed for face reconstruction from multiple images, most of which involve fundamental principles of Shape from Shading and Structure from motion. However, a majority of the methods just generate discrete…

Computer Vision and Pattern Recognition · Computer Science 2016-01-22 Weilong Peng , Zhiyong Feng , Chao Xu

Recently, diffusion models have been used successfully to fit distributions for cross-modal data translation and multimodal data generation. However, these methods rely on extensive scaling, overlooking the inefficiency and interference…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Zizhao Hu , Shaochong Jia , Mohammad Rostami

We introduce the Pyramid Diffusion Model (PDM), a novel architecture designed for ultra-high-resolution image synthesis. PDM utilizes a pyramid latent representation, providing a broader design space that enables more flexible, structured,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Jiajie Yang

This paper addresses the problem of generating uniform dense point clouds to describe the underlying geometric structures from given sparse point clouds. Due to the irregular and unordered nature, point cloud densification as a generative…

Computer Vision and Pattern Recognition · Computer Science 2020-03-10 Yue Qian , Junhui Hou , Sam Kwong , Ying He

We present a dual-stage neural network architecture for analyzing fine shape details from microscopy recordings in 3D. The system, tested on red blood cells, uses training data from both healthy donors and patients with a congenital blood…

Quantitative Methods · Quantitative Biology 2020-05-29 G. Simionato , K. Hinkelmann , R. Chachanidze , P. Bianchi , E. Fermo , R. van Wijk , M. Leonetti , C. Wagner , L. Kaestner , S. Quint