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In this work, we present modeling and imaging performance of a dual panel limited-angle TOF-PET system for intraoperative surgical applications using GATE monte carlo toolkit. Several detector parameters such as detector pixel dimensions,…

医学物理 · 物理学 2024-02-13 Salar Sajedi , Yuemeng Feng , Hamid Sabet

We propose a novel dynamic image reconstruction method from PET listmode data that could be particularly suited to tracking single or small numbers of cells. In contrast to conventional PET reconstruction our method combines the information…

计算机视觉与模式识别 · 计算机科学 2019-11-25 Bernhard Schmitzer , Klaus P. Schäfers , Benedikt Wirth

Practical image segmentation tasks concern images which must be reconstructed from noisy, distorted, and/or incomplete observations. A recent approach for solving such tasks is to perform this reconstruction jointly with the segmentation,…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Jeremy Budd , Yves van Gennip , Jonas Latz , Simone Parisotto , Carola-Bibiane Schönlieb

A key question in the problem of 3D reconstruction is how to train a machine or a robot to model 3D objects. Many tasks like navigation in real-time systems such as autonomous vehicles directly depend on this problem. These systems usually…

计算机视觉与模式识别 · 计算机科学 2022-09-22 AmirHossein Zamani , Amir G. Aghdam , Kamran Ghaffari T

We present a method to reconstruct dynamic scenes from monocular continuous-wave time-of-flight (C-ToF) cameras using raw sensor samples that achieves similar or better accuracy than neural volumetric approaches and is 100x faster. Quickly…

Stencil computation is an important class of scientific applications that can be efficiently executed by graphics processing units (GPUs). Out-of-core approach helps run large scale stencil codes that process data with sizes larger than the…

分布式、并行与集群计算 · 计算机科学 2021-09-14 Jingcheng Shen , Yifan Wu , Masao Okita , Fumihiko Ino

We introduce the first end-to-end learning-based solution to near-field Photometric Stereo (PS), where the light sources are close to the object of interest. This setup is especially useful for reconstructing large immobile objects. Our…

计算机视觉与模式识别 · 计算机科学 2022-03-31 Daniel Lichy , Soumyadip Sengupta , David W. Jacobs

Purpose: Optoacoustic tomography (OAT) is inherently a three-dimensional (3D) inverse problem. However, most studies of OAT image reconstruction still employ two-dimensional (2D) imaging models. One important reason is because 3D image…

Purpose: To develop new encoding and reconstruction techniques for fast multi-contrast quantitative imaging. Methods: The recently proposed Echo Planar Time-resolved Imaging (EPTI) technique can achieve fast distortion- and blurring-free…

图像与视频处理 · 电气工程与系统科学 2020-10-05 Zijing Dong , Fuyixue Wang , Timothy G. Reese , Berkin Bilgic , Kawin Setsompop

Positional single photon incidence response (P-SPIR) theory is researched in this paper to generate more accurate PSF-contained system matrix simply and quickly. The method has been proved highly effective to improve the spatial resolution…

3D Gaussian Splatting (GS) enables highly photorealistic scene reconstruction from posed image sequences but struggles with viewpoint extrapolation due to its anisotropic nature, leading to overfitting and poor generalization, particularly…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Shuohan Tao , Boyao Zhou , Hanzhang Tu , Yuwang Wang , Yebin Liu

J-PET Framework is an open-source software platform for data analysis, written in C++ and based on the ROOT package. It provides a common environment for implementation of reconstruction, calibration and filtering procedures, as well as for…

仪器与探测器 · 物理学 2020-05-28 Wojciech Krzemien , Aleksander Gajos , Krzysztof Kacprzak , Kamil Rakoczy , Grzegorz Korcyl

This paper proposes a real-time multi-plane segmentation method based on GPU-accelerated high-resolution 3D voxel mapping for legged robot locomotion. Existing online planar mapping approaches struggle to balance accuracy and computational…

机器人学 · 计算机科学 2025-10-03 Shun Niijima , Ryoichi Tsuzaki , Noriaki Takasugi , Masaya Kinoshita

LAFOV PET/CT has the potential to unlock new applications such as ultra-low dose PET/CT imaging, multiplexed imaging, for biomarker development and for faster AI-driven reconstruction, but further work is required before these can be…

Compressive sensing promises to enable bandwidth-efficient on-board compression of astronomical data by lifting the encoding complexity from the source to the receiver. The signal is recovered off-line, exploiting GPUs parallel computation…

分布式、并行与集群计算 · 计算机科学 2018-02-14 Attilio Fiandrotti , Sophie M. Fosson , Chiara Ravazzi , Enrico Magli

Reconstructing an interactive human avatar and the background from a monocular video of a dynamic human scene is highly challenging. In this work we adopt a strategy of point cloud decoupling and joint optimization to achieve the decoupled…

图形学 · 计算机科学 2025-06-30 Da Li , Donggang Jia , Markus Hadwiger , Ivan Viola

Research ultrasound platforms have enabled many next-generation imaging sequences but have lacked realtime navigation capabilities for emerging 2D arrays such as row-column arrays (RCAs). We present an open-source, GPU-accelerated…

图像与视频处理 · 电气工程与系统科学 2025-12-15 Randy Palamar , Darren Dahunsi , Tyler Henry , Mohammad Rahim Sobhani , Roger Zemp

We demonstrate stable real-time operation of a software-defined, GPU-based receiver over a metropolitan network. Massive parallelization is exploited for implementing direct-detection and coherent Kramers-Kronig detection in real time at 2…

Genetic Programming (GP) is a computationally intensive technique which also has a high degree of natural parallelism. Parallel computing architectures have become commonplace especially with regards Graphics Processing Units (GPU). Hence,…

分布式、并行与集群计算 · 计算机科学 2016-01-05 Darren M. Chitty

Binary convolutional networks have lower computational load and lower memory foot-print compared to their full-precision counterparts. So, they are a feasible alternative for the deployment of computer vision applications on limited…

计算机视觉与模式识别 · 计算机科学 2020-07-29 Mete Can Kaya , Alperen İnci , Alptekin Temizel