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We propose an application of online hard sample mining for efficient training of Neural Radiance Fields (NeRF). NeRF models produce state-of-the-art quality for many 3D reconstruction and rendering tasks but require substantial…

计算机视觉与模式识别 · 计算机科学 2024-08-07 Juuso Korhonen , Goutham Rangu , Hamed R. Tavakoli , Juho Kannala

Efficient and fast reconstruction of anatomical structures plays a crucial role in clinical practice. Minimizing retrieval and processing times not only potentially enhances swift response and decision-making in critical scenarios but also…

Magnetic resonance fingerprinting (MRF) is a technique for quantitative estimation of spin-relaxation parameters from magnetic-resonance data. Most current MRF approaches assume that only one tissue is present in each voxel, which neglects…

Neural networks have demonstrated their outstanding performance in a wide range of tasks. Specifically recurrent architectures based on long-short term memory (LSTM) cells have manifested excellent capability to model time dependencies in…

机器学习 · 计算机科学 2021-11-09 Martin Ferianc , Zhiqiang Que , Hongxiang Fan , Wayne Luk , Miguel Rodrigues

This paper proposes a novel approach for rendering a pre-trained Neural Radiance Field (NeRF) in real-time on resource-constrained devices. We introduce Re-ReND, a method enabling Real-time Rendering of NeRFs across Devices. Re-ReND is…

计算机视觉与模式识别 · 计算机科学 2023-03-16 Sara Rojas , Jesus Zarzar , Juan Camilo Perez , Artsiom Sanakoyeu , Ali Thabet , Albert Pumarola , Bernard Ghanem

NeRF synthesizes novel views of a scene with unprecedented quality by fitting a neural radiance field to RGB images. However, NeRF requires querying a deep Multi-Layer Perceptron (MLP) millions of times, leading to slow rendering times,…

计算机视觉与模式识别 · 计算机科学 2021-08-03 Christian Reiser , Songyou Peng , Yiyi Liao , Andreas Geiger

We evaluate different Neural Radiance Fields (NeRFs) techniques for the 3D reconstruction of plants in varied environments, from indoor settings to outdoor fields. Traditional methods usually fail to capture the complex geometric details of…

Model Recovery (MR) is a core primitive for physical AI and real-time digital twins, but GPUs often execute MR inefficiently due to iterative dependencies, kernel-launch overheads, underutilized memory bandwidth, and high data-movement…

硬件体系结构 · 计算机科学 2025-12-09 Bin Xu , Ayan Banerjee , Sandeep Gupta

MR Fingerprinting is a novel quantitative MR technique that could simultaneously provide multiple tissue property maps. When optimizing MRF scans, modeling undersampling errors and field imperfections in cost functions will make the…

图像与视频处理 · 电气工程与系统科学 2021-05-26 Siyuan Hu , Stephen Jordan , Rasim Boyacioglu , Ignacio Rozada , Matthias Troyer , Mark Griswold , Debra McGivney , Dan Ma

The Magnetic Resonance Fingerprinting (MRF) approach aims to estimate multiple MR or physiological parameters simultaneously with a single fast acquisition sequence. Most of the MRF studies proposed so far have used simple MR sequence types…

神经元与认知 · 定量生物学 2024-07-16 Antoine Barrier , Thomas Coudert , Aurélien Delphin , Benjamin Lemasson , Thomas Christen

Real-time classification of Electromyography signals is the most challenging part of controlling a prosthetic hand. Achieving a high classification accuracy of EMG signals in a short delay time is still challenging. Recurrent neural…

信号处理 · 电气工程与系统科学 2021-09-14 Reza Bagherian Azhiri , Mohammad Esmaeili , Mehrdad Nourani

Magnetic resonance fingerprinting (MRF) is able to estimate multiple quantitative tissue parameters from a relatively short acquisition. The main characteristic of an MRF sequence is the simultaneous application of (a) transient states…

医学物理 · 物理学 2019-02-26 Christiaan C. Stolk , Alessandro Sbrizzi

Neuroevolution is a powerful method of applying an evolutionary algorithm to refine the performance of artificial neural networks through natural selection; however, the fitness evaluation of these networks can be time-consuming and…

神经与进化计算 · 计算机科学 2024-04-18 Derek Whitley

Neural Radiance Fields (NeRF) have emerged as a powerful approach for photorealistic 3D reconstruction from multi-view images. However, deploying NeRF for satellite imagery remains challenging. Each scene requires individual training, and…

Neural Radiance Fields (NeRF) has been wildly applied to various tasks for its high-quality representation of 3D scenes. It takes long per-scene training time and per-image testing time. In this paper, we present EfficientNeRF as an…

计算机视觉与模式识别 · 计算机科学 2022-06-03 Tao Hu , Shu Liu , Yilun Chen , Tiancheng Shen , Jiaya Jia

Learning a 3D representation of a scene has been a challenging problem for decades in computer vision. Recent advances in implicit neural representation from images using neural radiance fields(NeRF) have shown promising results. Some of…

计算机视觉与模式识别 · 计算机科学 2022-11-08 Arnab Dey , Andrew I. Comport

Long scan duration remains a challenge for high-resolution MRI. Deep learning has emerged as a powerful means for accelerated MRI reconstruction by providing data-driven regularizers that are directly learned from data. These data-driven…

图像与视频处理 · 电气工程与系统科学 2020-09-09 Seyed Amir Hossein Hosseini , Burhaneddin Yaman , Steen Moeller , Mehmet Akçakaya

The acquisition of Magnetic Resonance Imaging (MRI) is inherently slow. Inspired by recent advances in deep learning, we propose a framework for reconstructing MR images from undersampled data using a deep cascade of convolutional neural…

计算机视觉与模式识别 · 计算机科学 2017-03-03 Jo Schlemper , Jose Caballero , Joseph V. Hajnal , Anthony Price , Daniel Rueckert

With the advent of brain imaging techniques and machine learning tools, much effort has been devoted to building computational models to capture the encoding of visual information in the human brain. One of the most challenging brain…

计算机视觉与模式识别 · 计算机科学 2021-11-29 Zarina Rakhimberdina , Quentin Jodelet , Xin Liu , Tsuyoshi Murata

Intraoperative imaging techniques for reconstructing deformable tissues in vivo are pivotal for advanced surgical systems. Existing methods either compromise on rendering quality or are excessively computationally intensive, often demanding…

计算机视觉与模式识别 · 计算机科学 2023-12-27 Chen Yang , Kailing Wang , Yuehao Wang , Qi Dou , Xiaokang Yang , Wei Shen