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Parallel imaging is a widely-used technique to accelerate magnetic resonance imaging (MRI). However, current methods still perform poorly in reconstructing artifact-free MRI images from highly undersampled k-space data. Recently, implicit…

Image and Video Processing · Electrical Eng. & Systems 2022-10-20 Ruimin Feng , Qing Wu , Yuyao Zhang , Hongjiang Wei

Multivariate time series present challenges to standard machine learning techniques, as they are often unlabeled, high dimensional, noisy, and contain missing data. To address this, we propose T-Rep, a self-supervised method to learn time…

Machine Learning · Computer Science 2024-05-10 Archibald Fraikin , Adrien Bennetot , Stéphanie Allassonnière

Generating videos is a complex task that is accomplished by generating a set of temporally coherent images frame-by-frame. This limits the expressivity of videos to only image-based operations on the individual video frames needing network…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Bipasha Sen , Aditya Agarwal , Vinay P Namboodiri , C. V. Jawahar

Self-supervised learning achieves superior performance in many domains by extracting useful representations from the unlabeled data. However, most of traditional self-supervised methods mainly focus on exploring the inter-sample structure…

Machine Learning · Computer Science 2020-11-30 Haoyi Fan , Fengbin Zhang , Yue Gao

Recently, implicit neural representations (INRs) have attracted increasing attention for multi-dimensional data recovery. However, INRs simply map coordinates via a multi-layer perception (MLP) to corresponding values, ignoring the inherent…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Jiayi Li , Xile Zhao , Jianli Wang , Chao Wang , Min Wang

Identifying changes in a pair of 3D aerial LiDAR point clouds, obtained during two distinct time periods over the same geographic region presents a significant challenge due to the disparities in spatial coverage and the presence of noise…

Computer Vision and Pattern Recognition · Computer Science 2023-08-31 Peter Naylor , Diego Di Carlo , Arianna Traviglia , Makoto Yamada , Marco Fiorucci

Implicit Neural representations (INRs) have emerged as a promising approach for video compression, and have achieved comparable performance to the state-of-the-art codecs such as H.266/VVC. However, existing INR-based methods struggle to…

Computer Vision and Pattern Recognition · Computer Science 2025-06-19 Jun Zhu , Xinfeng Zhang , Lv Tang , JunHao Jiang

Implicit neural representations (INRs) have emerged as a compact and parametric alternative to discrete array-based data representations, encoding information directly in neural network weights to enable resolution-independent…

Machine Learning · Computer Science 2025-09-22 Yuan Ni , Zhantao Chen , Cheng Peng , Rajan Plumley , Chun Hong Yoon , Jana B. Thayer , Joshua J. Turner

Displaying high-quality images on edge devices, such as augmented reality devices, is essential for enhancing the user experience. However, these devices often face power consumption and computing resource limitations, making it challenging…

Image and Video Processing · Electrical Eng. & Systems 2024-06-10 Xiang Liu , Jiahong Chen , Bin Chen , Zimo Liu , Baoyi An , Shu-Tao Xia , Zhi Wang

Implicit Neural Representations (INRs) have emerged as promising surrogates for large 3D scientific simulations due to their ability to continuously model spatial and conditional fields, yet they face a critical fidelity-speed dilemma: deep…

Machine Learning · Computer Science 2026-03-25 Tianyu Xiong , Skylar Wurster , Han-Wei Shen

Reconstructing high-fidelity magnetic resonance (MR) images from under-sampled k-space is a commonly used strategy to reduce scan time. The posterior sampling of diffusion models based on the real measurement data holds significant promise…

Image and Video Processing · Electrical Eng. & Systems 2024-07-04 Jiayue Chu , Chenhe Du , Xiyue Lin , Yuyao Zhang , Hongjiang Wei

Decomposing a video into a layer-based representation is crucial for easy video editing for the creative industries, as it enables independent editing of specific layers. Existing video-layer decomposition models rely on implicit neural…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Maria Pilligua , Danna Xue , Javier Vazquez-Corral

With the increasing consumption of 3D displays and virtual reality, multi-view video has become a promising format. However, its high resolution and multi-camera shooting result in a substantial increase in data volume, making storage and…

Computer Vision and Pattern Recognition · Computer Science 2023-11-30 Chen Zhu , Guo Lu , Bing He , Rong Xie , Li Song

The effectiveness of recurrent neural networks can be largely influenced by their ability to store into their dynamical memory information extracted from input sequences at different frequencies and timescales. Such a feature can be…

Machine Learning · Computer Science 2020-07-01 Antonio Carta , Alessandro Sperduti , Davide Bacciu

Implicit neural representation (INR) has recently emerged as a promising paradigm for signal representations. Typically, INR is parameterized by a multiplayer perceptron (MLP) which takes the coordinates as the inputs and generates…

Computer Vision and Pattern Recognition · Computer Science 2024-06-07 Zhicheng Cai

Continuous signal representations are naturally suited for inverse problems, such as magnetic resonance imaging (MRI) and computed tomography, because the measurements depend on an underlying physically continuous signal. While classical…

Signal Processing · Electrical Eng. & Systems 2026-02-26 Hongze Yu , Yun Jiang , Jeffrey A. Fessler

In comparison to classical shallow representation learning techniques, deep neural networks have achieved superior performance in nearly every application benchmark. But despite their clear empirical advantages, it is still not well…

Machine Learning · Computer Science 2022-01-11 Calvin Murdock , George Cazenavette , Simon Lucey

Inversion of gravity data is an important method for investigating subsurface density variations relevant to mineral exploration, geothermal assessment, carbon storage, natural hydrogen, groundwater resources, and tectonic evolution. Here…

Geophysics · Physics 2026-04-07 Pankaj K Mishra , Sanni Laaksonen , Jochen Kamm , Anand Singh

Video compression technology is essential for transmitting and storing videos. Many video compression methods reduce information in videos by removing high-frequency components and utilizing similarities between frames. Alternatively, the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Taiga Hayami , Hiroshi Watanabe

Neural Representations for Videos (NeRV) has emerged as a promising implicit neural representation (INR) approach for video analysis, which represents videos as neural networks with frame indexes as inputs. However, NeRV-based methods are…

Computer Vision and Pattern Recognition · Computer Science 2025-01-20 Jialong Guo , Ke liu , Jiangchao Yao , Zhihua Wang , Jiajun Bu , Haishuai Wang