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Uncertainty quantification in inverse medical imaging tasks with deep learning has received little attention. However, deep models trained on large data sets tend to hallucinate and create artifacts in the reconstructed output that are not…

图像与视频处理 · 电气工程与系统科学 2020-08-21 Max-Heinrich Laves , Malte Tölle , Tobias Ortmaier

Artificial intelligence (AI) has transformed imaging inverse problems, from medical diagnostics to Earth observation. Yet deep neural networks can produce hallucinations, realistic-looking but incorrect details, undermining their…

机器学习 · 统计学 2026-05-14 David Iagaru , Nina M. Gottschling , Anders C. Hansen , Josselin Garnier

Tomographic image reconstruction is generally an ill-posed linear inverse problem. Such ill-posed inverse problems are typically regularized using prior knowledge of the sought-after object property. Recently, deep neural networks have been…

图像与视频处理 · 电气工程与系统科学 2021-09-28 Sayantan Bhadra , Varun A. Kelkar , Frank J. Brooks , Mark A. Anastasio

This work introduces a novel methodology for the automatic detection of hallucinations generated during large language model (LLM) inference. The proposed approach is based on a systematic taxonomy and controlled reproduction of diverse…

计算与语言 · 计算机科学 2025-10-08 Maksym Zavhorodnii , Dmytro Dehtiarov , Anna Konovalenko

Face hallucination, which is the task of generating a high-resolution face image from a low-resolution input image, is a well-studied problem that is useful in widespread application areas. Face hallucination is particularly challenging…

计算机视觉与模式识别 · 计算机科学 2016-04-28 Oncel Tuzel , Yuichi Taguchi , John R. Hershey

An approach to incorporate deep learning within an iterative image reconstruction framework to reconstruct images from severely incomplete measurement data is presented. Specifically, we utilize a convolutional neural network (CNN) as a…

计算机视觉与模式识别 · 计算机科学 2017-09-05 Brendan Kelly , Thomas P. Matthews , Mark A. Anastasio

Retrieval-Augmented Generation (RAG) models are designed to incorporate external knowledge, reducing hallucinations caused by insufficient parametric (internal) knowledge. However, even with accurate and relevant retrieved content, RAG…

计算与语言 · 计算机科学 2025-01-22 Zhongxiang Sun , Xiaoxue Zang , Kai Zheng , Yang Song , Jun Xu , Xiao Zhang , Weijie Yu , Yang Song , Han Li

Deep models have achieved impressive performance for face hallucination tasks. However, we observe that directly feeding the hallucinated facial images into recog- nition models can even degrade the recognition performance despite the much…

计算机视觉与模式识别 · 计算机科学 2016-11-28 Junyu Wu , Shengyong Ding , Wei Xu , Hongyang Chao

Hallucinations are one of the major issues affecting LLMs, hindering their wide adoption in production systems. While current research solutions for detecting hallucinations are mainly based on heuristics, in this paper we introduce a…

计算与语言 · 计算机科学 2025-02-14 Emanuele Ricco , Lorenzo Cima , Roberto Di Pietro

Monocular depth estimation and image deblurring are two fundamental tasks in computer vision, given their crucial role in understanding 3D scenes. Performing any of them by relying on a single image is an ill-posed problem. The recent…

计算机视觉与模式识别 · 计算机科学 2023-07-31 Saqib Nazir , Lorenzo Vaquero , Manuel Mucientes , Víctor M. Brea , Daniela Coltuc

While deep learning offers tremendous promise for scientific and medical imaging, any failures and hallucinations (predictions that do not coincide with reality) are hard to pinpoint and can have serious downstream consequences. Uncertainty…

图像与视频处理 · 电气工程与系统科学 2026-05-26 Cassandra Tong Ye , Shamus Li , Tyler King , Kristina Monakhova

Vision-language models (VLMs) frequently generate hallucinated content plausible but incorrect claims about image content. We propose a training-free self-correction framework enabling VLMs to iteratively refine responses through…

计算机视觉与模式识别 · 计算机科学 2025-12-11 Kassoum Sanogo , Renzo Ardiccioni

As a domain-specific super-resolution problem, facial image hallucination has enjoyed a series of breakthroughs thanks to the advances of deep convolutional neural networks. However, the direct migration of existing methods to video is…

计算机视觉与模式识别 · 计算机科学 2020-02-19 Chaowei Fang , Guanbin Li , Xiaoguang Han , Yizhou Yu

Large Language Models (LLMs) often generate incorrect or unsupported content, known as hallucinations. Existing detection methods rely on heuristics or simple models over isolated computational traces such as activations, or attention maps.…

机器学习 · 计算机科学 2025-09-30 Fabrizio Frasca , Guy Bar-Shalom , Yftah Ziser , Haggai Maron

Vision Language models (VLMs) often hallucinate non-existent objects. Detecting hallucination is analogous to detecting deception: a single final statement is insufficient, one must examine the underlying reasoning process. Yet existing…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Abin Shoby , Ta Duc Huy , Tuan Dung Nguyen , Minh Khoi Ho , Qi Chen , Anton van den Hengel , Phi Le Nguyen , Johan W. Verjans , Vu Minh Hieu Phan

In this paper we address the problem of hallucinating high-resolution facial images from unaligned low-resolution inputs at high magnification factors. We approach the problem with convolutional neural networks (CNNs) and propose a novel…

计算机视觉与模式识别 · 计算机科学 2019-02-12 Klemen Grm , Simon Dobrišek , Walter J. Scheirer , Vitomir Štruc

Image reconstruction methods based on deep neural networks have shown outstanding performance, equalling or exceeding the state-of-the-art results of conventional approaches, but often do not provide uncertainty information about the…

计算机视觉与模式识别 · 计算机科学 2020-12-01 Riccardo Barbano , Željko Kereta , Chen Zhang , Andreas Hauptmann , Simon Arridge , Bangti Jin

One of the most critical challenges in Large Language Models is their tendency to hallucinate, i.e., produce factually incorrect responses. Existing approaches show promising results in terms of hallucination correction, but still suffer…

计算与语言 · 计算机科学 2026-05-08 Erik Nielsen , Elia Cunegatti , Marcus Vukojevic , Giovanni Iacca

Visual SLAM (Simultaneous Localization and Mapping) methods typically rely on handcrafted visual features or raw RGB values for establishing correspondences between images. These features, while suitable for sparse mapping, often lead to…

计算机视觉与模式识别 · 计算机科学 2018-11-21 Chamara Saroj Weerasekera , Ravi Garg , Yasir Latif , Ian Reid

Large language models (LLMs) show promise in healthcare, but hallucinations remain a major barrier to clinical use. We present CHECK, a continuous-learning framework that integrates structured clinical databases with a classifier grounded…

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