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Neural fields excel at representing continuous visual signals but typically operate at a single, fixed resolution. We present a simple yet powerful method to optimize neural fields that can be prefiltered in a single forward pass. Key…

Graphics · Computer Science 2026-02-06 Mustafa B. Yaldiz , Ishit Mehta , Nithin Raghavan , Andreas Meuleman , Tzu-Mao Li , Ravi Ramamoorthi

Multi-Layer Perceptrons (MLPs) make powerful functional representations for sampling and reconstruction problems involving low-dimensional signals like images,shapes and light fields. Recent works have significantly improved their ability…

Computer Vision and Pattern Recognition · Computer Science 2021-04-09 Ishit Mehta , Michaël Gharbi , Connelly Barnes , Eli Shechtman , Ravi Ramamoorthi , Manmohan Chandraker

Image denoising can be described as the problem of mapping from a noisy image to a noise-free image. The best currently available denoising methods approximate this mapping with cleverly engineered algorithms. In this work we attempt to…

Computer Vision and Pattern Recognition · Computer Science 2012-11-12 Harold Christopher Burger , Christian J. Schuler , Stefan Harmeling

In this paper, we investigate image reconstruction for dynamic Computed Tomography. The motion of the target with respect to the measurement acquisition rate leads to highly resolved in time but highly undersampled in space measurements.…

Image and Video Processing · Electrical Eng. & Systems 2025-06-27 Pablo Arratia , Matthias Ehrhardt , Lisa Kreusser

Discretized techniques for vector tomographic reconstructions are prone to producing artifacts in the reconstructions. The quality of these reconstructions may further deteriorate as the amount of noise increases. In this work, we instead…

Disordered Systems and Neural Networks · Physics 2024-12-16 Giorgi Butbaia , Jiadong Zang

It was recently demonstrated [J. Electron. Imaging, 25(2), 2016] that one can perform fast non-local means (NLM) denoising of one-dimensional signals using a method called lifting. The cost of lifting is independent of the patch length,…

Computer Vision and Pattern Recognition · Computer Science 2018-03-14 Sanjay Ghosh , Kunal N. Chaudhury

The recent developments in neural fields have brought phenomenal capabilities to the field of shape generation, but they lack crucial properties, such as incremental control - a fundamental requirement for artistic work. Triangular meshes,…

Graphics · Computer Science 2024-10-11 Amir Barda , Vladimir G. Kim , Noam Aigerman , Amit H. Bermano , Thibault Groueix

Neural fields have become widely used in various fields, from shape representation to neural rendering, and for solving partial differential equations (PDEs). With the advent of hybrid neural field representations like Instant NGP that…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Aditya Chetan , Guandao Yang , Zichen Wang , Steve Marschner , Bharath Hariharan

Largely due to their implicit nature, neural fields lack a direct mechanism for filtering, as Fourier analysis from discrete signal processing is not directly applicable to these representations. Effective filtering of neural fields is…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Ahan Shabanov , Shrisudhan Govindarajan , Cody Reading , Lily Goli , Daniel Rebain , Kwang Moo Yi , Andrea Tagliasacchi

Optimization-based filtering smoothes an image by minimizing a fidelity function and simultaneously preserves edges by exploiting a sparse norm penalty over gradients. It has obtained promising performance in practical problems, such as…

Graphics · Computer Science 2013-05-20 Chengxi Ye , Dacheng Tao , Mingli Song , David W. Jacobs , Min Wu

Multi-layer perceptrons (MLPs) are a standard tool for learning and function approximation, but they inherently yield outputs that are globally smooth. As a result, they struggle to represent functions that are continuous yet deliberately…

Computer Vision and Pattern Recognition · Computer Science 2026-01-28 Hanting Niu , Junkai Deng , Fei Hou , Wencheng Wang , Ying He

Despite the fact that neural networks are widely used for speech-driven head motion synthesis, it is well-known that the output of neural networks is noisy or discontinuous due to the limited capability of deep neural networks in predicting…

Signal Processing · Electrical Eng. & Systems 2019-07-26 JinHong Lu , Hiroshi Shimodaira

Recent studies showed that the generalization of neural networks is correlated with the sharpness of the loss landscape, and flat minima suggests a better generalization ability than sharp minima. In this paper, we propose a novel method…

Machine Learning · Computer Science 2024-05-24 Yuyan Zhou , Ye Li , Lei Feng , Sheng-Jun Huang

Non-stationary signals are ubiquitous in real life. Many techniques have been proposed in the last decades which allow decomposing multi-component signals into simple oscillatory mono-components, like the groundbreaking Empirical Mode…

Numerical Analysis · Mathematics 2024-01-30 Giovanni Barbarino , Antonio Cicone

Considering the use of Fully Connected (FC) layer limits the performance of Convolutional Neural Networks (CNNs), this paper develops a method to improve the coupling between the convolution layer and the FC layer by reducing the noise in…

Machine Learning · Computer Science 2019-01-08 Yang Liu , Qiang Qu , Chao Gao

While the pursuit of higher accuracy in deepfake detection remains a central goal, there is an increasing demand for precise localization of manipulated regions. Despite the remarkable progress made in classification-based detection,…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Chao Shuai , Gaojian Wang , Kun Pan , Tong Wu , Fanli Jin , Haohan Tan , Mengxiang Li , Zhenguang Liu , Feng Lin , Kui Ren

Convolutional neural networks are widely used in various segmentation tasks in medical images. However, they are challenged to learn global features adaptively due to the inherent locality of convolutional operations. In contrast, MLP…

Image and Video Processing · Electrical Eng. & Systems 2024-12-25 Jin Yang , Xiaobing Yu , Peijie Qiu

The multi-plane representation has been highlighted for its fast training and inference across static and dynamic neural radiance fields. This approach constructs relevant features via projection onto learnable grids and interpolating…

Computer Vision and Pattern Recognition · Computer Science 2024-06-06 Mingyu Kim , Jun-Seong Kim , Se-Young Yun , Jin-Hwa Kim

This study proposes a novel memory-efficient recurrent neural network (RNN) architecture specified to solve the object localization problem. This problem is to recover the object states along with its movement in a noisy environment. We…

Robotics · Computer Science 2023-10-04 Roman Korkin , Ivan Oseledets , Aleksandr Katrutsa

We present a novel surface convolution operator acting on vector fields that is based on a simple observation: instead of combining neighboring features with respect to a single coordinate parameterization defined at a given point, we have…

Computer Vision and Pattern Recognition · Computer Science 2021-09-17 Thomas W. Mitchel , Vladimir G. Kim , Michael Kazhdan