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相关论文: SASNet: Spatially-Adaptive Sinusoidal Networks for…

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Sinusoidal neural networks have been shown effective as implicit neural representations (INRs) of low-dimensional signals, due to their smoothness and high representation capacity. However, initializing and training them remain empirical…

机器学习 · 计算机科学 2025-04-07 Tiago Novello , Diana Aldana , Andre Araujo , Luiz Velho

We identify and address a fundamental limitation of sinusoidal representation networks (SIRENs), a class of implicit neural representations. SIRENs Sitzmann et al. (2020), when not initialized appropriately, can struggle at fitting signals…

计算机视觉与模式识别 · 计算机科学 2025-09-17 Hemanth Chandravamsi , Dhanush V. Shenoy , Steven H. Frankel

The detection and estimation of sinusoids is a fundamental signal processing task for many applications related to sensing and communications. While algorithms have been proposed for this setting, quantization is a critical, but often…

信号处理 · 电气工程与系统科学 2022-10-05 Ryan Dreifuerst , Robert W. Heath

Implicit neural representations (INRs) such as NeRF and SIREN encode a signal in neural network parameters and show excellent results for signal reconstruction. Using INRs for downstream tasks, such as classification, is however not…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Alexander Gielisse , Jan van Gemert

Single image super-resolution(SISR) is an ill-posed problem that aims to obtain high-resolution (HR) output from low-resolution (LR) input, during which extra high-frequency information is supposed to be added to improve the perceptual…

图像与视频处理 · 电气工程与系统科学 2021-11-23 Runyuan Cai , Yue Ding , Hongtao Lu

Implicit Neural Representations (INRs), which encode signals such as images, videos, and 3D shapes in the weights of neural networks, are becoming increasingly popular. Among their many applications is signal compression, for which there is…

计算机视觉与模式识别 · 计算机科学 2024-10-30 Jeremy Vonderfecht , Feng Liu

Implicit Neural Representations (INRs) offer exceptional fidelity for video compression by learning per-video optimized functions, but their adoption is crippled by impractically slow encoding times. Existing attempts to accelerate INR…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Vikram Rangarajan , Shishira Maiya , Max Ehrlich , Abhinav Shrivastava

Medical image segmentation faces critical challenges in semi-supervised learning scenarios due to severe annotation scarcity requiring expert radiological knowledge, significant inter-annotator variability across different viewpoints and…

图像与视频处理 · 电气工程与系统科学 2026-01-06 Zihan Li , Dandan Shan , Yunxiang Li , Paul E. Kinahan , Qingqi Hong

Implicit Neural Representations (INRs) have emerged as a promising method for representing diverse data modalities, including 3D shapes, images, and audio. While recent research has demonstrated successful applications of INRs in image and…

声音 · 计算机科学 2023-06-23 Luca A. Lanzendörfer , Roger Wattenhofer

In modern neuroscience, functional magnetic resonance imaging (fMRI) has been a crucial and irreplaceable tool that provides a non-invasive window into the dynamics of whole-brain activity. Nevertheless, fMRI is limited by hemodynamic…

信号处理 · 电气工程与系统科学 2024-01-26 Yamin Li , Ange Lou , Ziyuan Xu , Shiyu Wang , Catie Chang

This work identifies and attempts to address a fundamental limitation of implicit neural representations with sinusoidal activation. The fitting error of SIRENs is highly sensitive to the target frequency content and to the choice of…

音频与语音处理 · 电气工程与系统科学 2025-12-24 Hemanth Chandravamsi , Dhanush V. Shenoy , Itay Zinn , Ziv Chen , Shimon Pisnoy , Steven H. Frankel

Frequency estimation is a fundamental problem in signal processing, with applications in radar imaging, underwater acoustics, seismic imaging, and spectroscopy. The goal is to estimate the frequency of each component in a multisinusoidal…

机器学习 · 计算机科学 2021-02-04 Gautier Izacard , Sreyas Mohan , Carlos Fernandez-Granda

Encoding input coordinates with sinusoidal functions into multilayer perceptrons (MLPs) has proven effective for implicit neural representations (INRs) of low-dimensional signals, enabling the modeling of high-frequency details. However,…

计算机视觉与模式识别 · 计算机科学 2025-10-29 Diana Aldana , João Paulo Lima , Daniel Csillag , Daniel Perazzo , Haoan Feng , Luiz Velho , Tiago Novello

Implicit Neural Representations (INRs) have emerged as a powerful paradigm for representing continuous signals independently of grid resolution. In this paper, we propose a high-fidelity neural compression framework based on a SIREN…

机器学习 · 计算机科学 2026-03-18 Caiyun Liu , Xiaoxue Luo , Jie Xiong

Recent advancements in multi-scale architectures have demonstrated exceptional performance in image denoising tasks. However, existing architectures mainly depends on a fixed single-input single-output Unet architecture, ignoring the…

计算机视觉与模式识别 · 计算机科学 2025-06-23 Xu Zhao , Chen Zhao , Xiantao Hu , Hongliang Zhang , Ying Tai , Jian Yang

This work presents a novel approach for pressure field reconstruction from image velocimetry data using SIREN (Sinusoidal Representation Network), emphasizing its effectiveness as an implicit neural representation in noisy environments and…

计算机视觉与模式识别 · 计算机科学 2025-08-26 Renato F. Miotto , William R. Wolf , Fernando Zigunov

Implicit neural representations (INRs) have demonstrated strong capabilities in various medical imaging tasks, such as denoising, registration, and segmentation, by representing images as continuous functions, allowing complex details to be…

图像与视频处理 · 电气工程与系统科学 2025-03-31 Younès Moussaoui , Diana Mateus , Nasrin Taheri , Saïd Moussaoui , Thomas Carlier , Simon Stute

Implicit Neural Representations (INRs) have garnered significant attention for their ability to model complex signals in various domains. Recently, INR-based frameworks have shown promise in neural video compression by embedding video…

图像与视频处理 · 电气工程与系统科学 2025-07-25 Taiga Hayami , Kakeru Koizumi , Hiroshi Watanabe

Implicitly defined, continuous, differentiable signal representations parameterized by neural networks have emerged as a powerful paradigm, offering many possible benefits over conventional representations. However, current network…

计算机视觉与模式识别 · 计算机科学 2020-06-18 Vincent Sitzmann , Julien N. P. Martel , Alexander W. Bergman , David B. Lindell , Gordon Wetzstein

In recent years, tons of research has been conducted on Single Image Super-Resolution (SISR). However, to the best of our knowledge, few of these studies are mainly focused on compressed images. A problem such as complicated compression…

图像与视频处理 · 电气工程与系统科学 2022-01-19 Agus Gunawan , Sultan Rizky Hikmawan Madjid
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