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Through the use of carefully tailored convolutional neural network architectures, a deep image prior (DIP) can be used to obtain pre-images from latent representation encodings. Though DIP inversion has been known to be superior to…

Machine Learning · Computer Science 2020-10-26 Vivek Narayanaswamy , Jayaraman J. Thiagarajan , Andreas Spanias

Recent works have shown the surprising effectiveness of deep generative models in solving numerous image reconstruction (IR) tasks, even without training data. We call these models, such as deep image prior and deep decoder, collectively as…

Computer Vision and Pattern Recognition · Computer Science 2021-10-26 Taihui Li , Zhong Zhuang , Hengyue Liang , Le Peng , Hengkang Wang , Ju Sun

Deep Image Prior (DIP) shows that some network architectures naturally bias towards smooth images and resist noises, a phenomenon known as spectral bias. Image denoising is an immediate application of this property. Although DIP has removed…

Image and Video Processing · Electrical Eng. & Systems 2023-08-29 Yilin Liu , Jiang Li , Yunkui Pang , Dong Nie , Pew-thian Yap

We introduce the Deep Spectral Prior (DSP), a new framework for unsupervised image reconstruction that operates entirely in the complex frequency domain. Unlike the Deep Image Prior (DIP), which optimises pixel-level errors and is highly…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Yanqi Cheng , Xuxiang Zhao , Tieyong Zeng , Pietro Lio , Carola-Bibiane Schönlieb , Angelica I Aviles-Rivero

Recent works show that convolutional neural network (CNN) architectures have a spectral bias towards lower frequencies, which has been leveraged for various image restoration tasks in the Deep Image Prior (DIP) framework. The benefit of the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Metin Ersin Arican , Ozgur Kara , Gustav Bredell , Ender Konukoglu

Unsupervised deep image prior (DIP) addresses shortcomings of training data requirements and limited generalization associated with supervised deep learning. The performance of DIP depends on the network architecture and the stopping point…

Zero-shot image restoration (IR) methods based on pretrained diffusion models have recently achieved significant success. These methods typically require at least a parametric form of the degradation model. However, in real-world scenarios,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Hamadi Chihaoui , Paolo Favaro

In Deep Image Prior (DIP), a Convolutional Neural Network (CNN) is fitted to map a latent space to a degraded (e.g. noisy) image but in the process learns to reconstruct the clean image. This phenomenon is attributed to CNN's internal…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Nimrod Shabtay , Eli Schwartz , Raja Giryes

Deep learning algorithms that rely on extensive training data are revolutionizing image recovery from ill-posed measurements. Training data is scarce in many imaging applications, including ultra-high-resolution imaging. The deep image…

Image and Video Processing · Electrical Eng. & Systems 2021-11-23 Maneesh John , Hemant Kumar Aggarwal , Qing Zou , Mathews Jacob

We extend the Deep Image Prior (DIP) framework to one-dimensional signals. DIP is using a randomly initialized convolutional neural network (CNN) to solve linear inverse problems by optimizing over weights to fit the observed measurements.…

Machine Learning · Computer Science 2019-04-19 Sriram Ravula , Alexandros G. Dimakis

Conventional deconvolution methods utilize hand-crafted image priors to constrain the optimization. While deep-learning-based methods have simplified the optimization by end-to-end training, they fail to generalize well to blurs unseen in…

Image and Video Processing · Electrical Eng. & Systems 2023-06-07 Dong Huo , Abbas Masoumzadeh , Rafsanjany Kushol , Yee-Hong Yang

Deep neural networks are a very powerful tool for many computer vision tasks, including image restoration, exhibiting state-of-the-art results. However, the performance of deep learning methods tends to drop once the observation model used…

Image and Video Processing · Electrical Eng. & Systems 2020-07-01 Jenny Zukerman , Tom Tirer , Raja Giryes

We study the deep image prior (DIP) framework applied to photoacoustic tomography (PAT) as an unsupervised reconstruction approach to mitigate limited-view artifacts and noise commonly encountered in experimental settings. Efficient…

Image and Video Processing · Electrical Eng. & Systems 2026-04-22 Hanna Pulkkinen , Jenni Poimala , Leonid Kunyansky , Janek Gröhl , Andreas Hauptmann

We introduce DIP, a novel unsupervised post-training method designed to enhance dense image representations in large-scale pretrained vision encoders for in-context scene understanding. Unlike prior approaches that rely on complex…

Computer Vision and Pattern Recognition · Computer Science 2025-09-10 Sophia Sirko-Galouchenko , Spyros Gidaris , Antonin Vobecky , Andrei Bursuc , Nicolas Thome

Recent work has shown that the structure of convolutional neural networks (CNNs) induces a strong prior that favors natural images. This prior, known as a deep image prior (DIP), is an effective regularizer in inverse problems such as image…

Computer Vision and Pattern Recognition · Computer Science 2020-12-03 Pallabi Ghosh , Vibhav Vineet , Larry S. Davis , Abhinav Shrivastava , Sudipta Sinha , Neel Joshi

Dynamic MRI reconstruction from undersampled measurements is a challenging inverse problem that requires preserving both spatial reconstruction quality and temporal consistency across the frames of the cine series. While recent…

Image and Video Processing · Electrical Eng. & Systems 2026-05-19 Yongliang Sun , Siddhant Gautam , Chaoyan Huang , Nicole Seiberlich , Ismail Alkhouri , Saiprasad Ravishankar

Deep Image Prior (DIP) has recently emerged as a promising one-shot neural-network based image reconstruction method. However, DIP has seen limited application to 3D image reconstruction problems. In this work, we introduce Tada-DIP, a…

Image and Video Processing · Electrical Eng. & Systems 2025-12-04 Evan Bell , Shijun Liang , Ismail Alkhouri , Saiprasad Ravishankar

We present a neural architecture search (NAS) technique to enhance the performance of unsupervised image de-noising, in-painting and super-resolution under the recently proposed Deep Image Prior (DIP). We show that evolutionary search can…

Computer Vision and Pattern Recognition · Computer Science 2020-01-15 Kary Ho , Andrew Gilbert , Hailin Jin , John Collomosse

Objective: To propose and validate an unsupervised MRI reconstruction method that does not require fully sampled k-space data. Materials and Methods: The proposed method, deep image prior with structured sparsity (DISCUS), extends the deep…

Image and Video Processing · Electrical Eng. & Systems 2025-05-30 Muhammad Ahmad Sultan , Chong Chen , Yingmin Liu , Katarzyna Gil , Karolina Zareba , Rizwan Ahmad

Deep learning (DL) methods have been extensively applied to various image recovery problems, including magnetic resonance imaging (MRI) and computed tomography (CT) reconstruction. Beyond supervised models, other approaches have been…

Image and Video Processing · Electrical Eng. & Systems 2024-12-24 Shijun Liang , Ismail Alkhouri , Qing Qu , Rongrong Wang , Saiprasad Ravishankar