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As a crucial part of the spectral filter array (SFA)-based multispectral imaging process, spectral demosaicing has exploded with the proliferation of deep learning techniques. However, (1) bothering by the difficulty of capturing…

Image and Video Processing · Electrical Eng. & Systems 2025-03-05 Jiahui Luo , Kai Feng , Haijin Zeng , Yongyong Chen

Foundation models are now increasingly being developed for Earth observation (EO), yet they often rely on stochastic masking that do not explicitly enforce physics constraints; a critical trustworthiness limitation, in particular for…

Artificial Intelligence · Computer Science 2026-05-05 Syed Usama Imtiaz , Mitra Nasr Azadani , Nasrin Alamdari

Hyperspectral images (HSI) not only have a broad macroscopic field of view but also contain rich spectral information, and the types of surface objects can be identified through spectral information, which is one of the main applications in…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Sen Jia , Yifan Wang

Foundation models have reshaped the landscape of Remote Sensing (RS) by enhancing various image interpretation tasks. Pretraining is an active research topic, encompassing supervised and self-supervised learning methods to initialize model…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 Di Wang , Jing Zhang , Minqiang Xu , Lin Liu , Dongsheng Wang , Erzhong Gao , Chengxi Han , Haonan Guo , Bo Du , Dacheng Tao , Liangpei Zhang

State-of-the-art RGB texture synthesis algorithms rely on style distances that are computed through statistics of deep features. These deep features are extracted by classification neural networks that have been trained on large datasets of…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Sélim Ollivier , Yann Gousseau , Sidonie Lefebvre

The integration of miniaturized spectrometers into mobile devices offers new avenues for image quality enhancement and facilitates novel downstream tasks. However, the broader application of spectral sensors in mobile photography is…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Kailai Zhou , Lijing Cai , Yibo Wang , Mengya Zhang , Bihan Wen , Qiu Shen , Xun Cao

This study introduces a novel application of a Generative Pre-trained Transformer (GPT) model tailored for photoplethysmography (PPG) signals, serving as a foundation model for various downstream tasks. Adapting the standard GPT…

Machine Learning · Computer Science 2025-03-12 Zhaoliang Chen , Cheng Ding , Saurabh Kataria , Runze Yan , Minxiao Wang , Randall Lee , Xiao Hu

In recent years large model trained on huge amount of cross-modality data, which is usually be termed as foundation model, achieves conspicuous accomplishment in many fields, such as image recognition and generation. Though achieving great…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Shiqi Yang , Atsushi Hashimoto , Yoshitaka Ushiku

Hyperspectral imaging provides detailed information about the scanned objects, as it captures their spectral characteristics within a large number of wavelength bands. Classification of such data has become an active research topic due to…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Jakub Nalepa , Lukasz Tulczyjew , Michal Myller , Michal Kawulok

The pre-trained transformer demonstrates remarkable generalization ability in natural image processing. However, directly transferring it to magnetic resonance images faces two key challenges: the inability to adapt to the specificity of…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Jingkai Li , Xiaoze Tian , Yuhang Shen , Jia Wang , Dianjie Lu , Guijuan Zhang , Zhuoran Zheng

Shape matching is a fundamental task in computer graphics and vision, with deep functional maps becoming a prominent paradigm. However, existing methods primarily focus on learning informative feature representations by constraining…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Feifan Luo , Hongyang Chen

Single-pixel imaging (SPI) offers a cost-effective route to hyperspectral acquisition but struggles to recover high-fidelity spatial and spectral details under extremely low sampling rates, a severely ill-posed inverse problem. While deep…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Hao Zhang , Bilige Xu , Lichen Wei , Xu Ma , Wenyi Ren

Pre-training foundation models has become the de-facto procedure for deep learning approaches, yet its application remains limited in the geological studies, where in needs of the model transferability to break the shackle of data scarcity.…

Machine Learning · Computer Science 2025-09-11 An-Sheng Lee , Yu-Wen Pao , Hsuan-Tien Lin , Sofia Ya Hsuan Liou

Retinal foundation models aim to learn generalizable representations from diverse retinal images, facilitating label-efficient model adaptation across various ophthalmic tasks. Despite their success, current retinal foundation models are…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Kai Yu , Yang Zhou , Yang Bai , Zhi Da Soh , Xinxing Xu , Rick Siow Mong Goh , Ching-Yu Cheng , Yong Liu

Large pre-trained models, or foundation models, have shown impressive performance when adapted to a variety of downstream tasks, often out-performing specialized models. Hypernetworks, neural networks that generate some or all of the…

Machine Learning · Computer Science 2025-03-04 Jeffrey Gu , Serena Yeung-Levy

Hyperspectral Imaging (HSI) serves as a non-destructive spatial spectroscopy technique with a multitude of potential applications. However, a recurring challenge lies in the limited size of the target datasets, impeding exhaustive…

Computer Vision and Pattern Recognition · Computer Science 2023-09-21 Hannah Frank , Leon Amadeus Varga , Andreas Zell

Real time, singleshot multispectral imaging systems are crucial for environment monitoring and biomedical imaging. Most singleshot multispectral imagers rely on complex computational backends, which precludes real time operations. In this…

Optics · Physics 2025-02-27 Romil Audhkhasi , Ningzhi Xie , Johannes E. Fröch , Arka Majumdar

When adopting a model-based formulation, solving inverse problems encountered in multiband imaging requires to define spatial and spectral regularizations. In most of the works of the literature, spectral information is extracted from the…

Image and Video Processing · Electrical Eng. & Systems 2023-07-03 Min Zhao , Nicolas Dobigeon , Jie Chen

Learning powerful feature representations with CNNs is hard when training data are limited. Pre-training is one way to overcome this, but it requires large datasets sufficiently similar to the target domain. Another option is to design…

Computer Vision and Pattern Recognition · Computer Science 2016-05-16 Jörn-Henrik Jacobsen , Jan van Gemert , Zhongyu Lou , Arnold W. M. Smeulders

We propose Multi-spectral Neural Radiance Fields(Spec-NeRF) for jointly reconstructing a multispectral radiance field and spectral sensitivity functions(SSFs) of the camera from a set of color images filtered by different filters. The…

Image and Video Processing · Electrical Eng. & Systems 2023-10-23 Jiabao Li , Yuqi Li , Ciliang Sun , Chong Wang , Jinhui Xiang
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