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Dynamic 4D Gaussian Splatting (4DGS) effectively extends the high-speed rendering capabilities of 3D Gaussian Splatting (3DGS) to represent volumetric videos. However, the large number of Gaussians, substantial temporal redundancies, and…

图形学 · 计算机科学 2026-01-14 Hyeongmin Lee , Kyungjune Baek

The Gridding algorithm has shown great utility for reconstructing images from non-uniformly spaced samples in the Fourier domain in several imaging modalities. Due to the non-uniform spacing, some correction for the variable density of the…

图像与视频处理 · 电气工程与系统科学 2021-06-17 Nicholas Dwork , Daniel O'Connor , Ethan M. I. Johnson , Corey A. Baron , Jeremy W. Gordon , John M. Pauly , Peder E. Z. Larson

Objective: Time-difference electrical impedance tomography (EIT) is gaining widespread use for bedside lung monitoring in intensive care patients suffering from lung-related diseases. It involves collecting voltage measurements from…

While machine learning approaches perform well on their training domain, they generally tend to fail in a real-world application. In cardiovascular magnetic resonance imaging (CMR), respiratory motion represents a major challenge in terms…

图像与视频处理 · 电气工程与系统科学 2022-09-21 Amin Ranem , John Kalkhof , Caner Özer , Anirban Mukhopadhyay , Ilkay Oksuz

Artifact-free super-resolution (SR) aims to translate low-resolution images into their high-resolution counterparts with a strict integrity of the original content, eliminating any distortions or synthetic details. While traditional…

图像与视频处理 · 电气工程与系统科学 2024-03-26 Qingping Zheng , Ling Zheng , Yuanfan Guo , Ying Li , Songcen Xu , Jiankang Deng , Hang Xu

4D CT imaging is an essential component of radiotherapy of thoracic/abdominal tumors. 4D CT images are, however, often affected by artifacts that compromise treatment planning quality. In this work, deep learning (DL)-based conditional…

医学物理 · 物理学 2024-11-26 Frederic Madesta , Thilo Sentker , Tobias Gauer , Rene Werner

Real-time (RT) dynamic MRI plays a vital role in capturing rapid physiological processes, offering unique insights into organ motion and function. Among these applications, RT cine MRI is particularly important for functional assessment of…

图像与视频处理 · 电气工程与系统科学 2025-05-02 Merve Gülle , Sebastian Weingärtner , Mehmet Akçakaya

The probability density function (PDF) plays a central role in statistical and machine learning modeling. Real-world data often deviates from Gaussian assumptions, exhibiting skewness and exponential decay. To evaluate how well different…

统计计算 · 统计学 2025-12-05 Shantanu Sarkar , Mousumi Sinha , Dexter Cahoy

Masked Autoregressive (MAR) models promise better efficiency in visual generation than autoregressive (AR) models for the ability of parallel generation, yet their acceleration potential remains constrained by the modeling complexity of…

计算机视觉与模式识别 · 计算机科学 2026-01-28 Feihong Yan , Peiru Wang , Yao Zhu , Kaiyu Pang , Qingyan Wei , Huiqi Li , Linfeng Zhang

Recovering ghost-free High Dynamic Range (HDR) images from multiple Low Dynamic Range (LDR) images becomes challenging when the LDR images exhibit saturation and significant motion. Recent Diffusion Models (DMs) have been introduced in HDR…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Tao Hu , Qingsen Yan , Yuankai Qi , Yanning Zhang

Recently, Gaussian Splatting (GS) has shown great potential for urban scene reconstruction in the field of autonomous driving. However, current urban scene reconstruction methods often depend on multimodal sensors as inputs, \textit{i.e.}…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Kejing Xia , Jidong Jia , Ke Jin , Yucai Bai , Li Sun , Dacheng Tao , Youjian Zhang

While 3D Gaussian splatting (3DGS) offers explicit and efficient scene representations for cone-beam computed tomography reconstruction, conventional photometric optimization inherently suffers from spectral bias under ultra sparse-view…

计算机视觉与模式识别 · 计算机科学 2026-05-01 Jian Lin , Jiancheng Fang , Shaoyu Wang , Changan Lai , Yikun Zhang , Yang Chen , Qiegen Liu

The properties of black holes and accretion flows can be inferred by fitting Event Horizon Telescope (EHT) data to simulated images generated through general relativistic ray tracing (GRRT). However, due to the computationally intensive…

星系天体物理 · 物理学 2025-05-28 Ao liu , Zelin Zhang , Songbai Chen , Cuihong Wen , Jieci Wang

Ground-penetrating radar (GPR) has emerged as a prominent tool for imaging internal defects in cylindrical structures, such as columns, utility poles, and tree trunks. However, accurately reconstructing both the shape and permittivity of…

信号处理 · 电气工程与系统科学 2026-02-12 Jiwei Qian , Yee Hui Lee , Kaixuan Cheng , Qiqi Dai , Arda Yalcinkaya , Mohamed Lokman Mohd Yusof , James Wang , Abdulkadir C. Yucel

Models of gravitational waveforms play a critical role in detecting and characterizing the gravitational waves (GWs) from compact binary coalescences. Waveforms from numerical relativity (NR), while highly accurate, are too computationally…

高能天体物理现象 · 物理学 2018-01-03 Zoheyr Doctor , Ben Farr , Daniel E. Holz , Michael Pürrer

This paper presents a novel approach 4DRecons that takes a single camera RGB-D sequence of a dynamic subject as input and outputs a complete textured deforming 3D model over time. 4DRecons encodes the output as a 4D neural implicit surface…

计算机视觉与模式识别 · 计算机科学 2024-06-17 Xiaoyan Cong , Haitao Yang , Liyan Chen , Kaifeng Zhang , Li Yi , Chandrajit Bajaj , Qixing Huang

Automating architectural floorplan design is vital for housing and interior design, offering a faster, cost-effective alternative to manual sketches by architects. However, existing methods, including rule-based and learning-based…

图形学 · 计算机科学 2024-12-17 Sizhe Hu , Wenming Wu , Yuntao Wang , Benzhu Xu , Liping Zheng

This study presents an effective autofocusing approach for synthetic aperture radar imaging of the human body under conditions of respiratory motion. The proposed method suppresses respiratory-motion-induced phase errors by separating radar…

信号处理 · 电气工程与系统科学 2026-01-13 Masaya Kato , Takuya Sakamoto

Automated radiology report generation has gained increasing attention with the rise of deep learning and large language models. However, fully generative approaches often suffer from hallucinations and lack clinical grounding, limiting…

定量方法 · 定量生物学 2026-05-01 Himadri S Samanta

Motion artifacts are a primary source of magnetic resonance (MR) image quality deterioration with strong repercussions on diagnostic performance. Currently, MR motion correction is carried out either prospectively, with the help of motion…

计算机视觉与模式识别 · 计算机科学 2019-11-26 Karim Armanious , Sergios Gatidis , Konstantin Nikolaou , Bin Yang , Thomas Küstner