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While machine learning approaches to image restoration offer great promise, current methods risk training models fixated on performing well only for image corruption of a particular level of difficulty---such as a certain level of noise or…

Computer Vision and Pattern Recognition · Computer Science 2017-08-03 Ruohan Gao , Kristen Grauman

Visual Language Models (VLMs) are now sufficiently advanced to support a broad range of applications, including answering complex visual questions, and are increasingly expected to interact with images in varied ways. To evaluate them,…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Ludovic Arnould , Salim Khazem , Hugues Ali Mehenni

Laparoscopic images and videos are often affected by different types of distortion like noise, smoke, blur and nonuniform illumination. Automatic detection of these distortions, followed generally by application of appropriate image quality…

Image and Video Processing · Electrical Eng. & Systems 2021-06-15 Zohaib Amjad Khan , Azeddine Beghdadi , Mounir Kaaniche , Faouzi Alaya Cheikh

We investigate the internal representations of vision-language models (VLMs) to address hallucinations, a persistent challenge despite advances in model size and training. We project VLMs' internal image representations to their language…

Computer Vision and Pattern Recognition · Computer Science 2025-02-12 Nick Jiang , Anish Kachinthaya , Suzie Petryk , Yossi Gandelsman

Restoring images affected by various types of degradation, such as noise, blur, or improper exposure, remains a significant challenge in computer vision. While recent trends favor complex monolithic all-in-one architectures, these models…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Joanna Wiekiera , Martyna Zur

Vision language models (VLMs) are AI systems paired with both language and vision encoders to process multimodal input. They are capable of performing complex semantic tasks such as automatic captioning, but it remains an open question…

Computer Vision and Pattern Recognition · Computer Science 2025-05-16 Tyler Tran , Sangeet Khemlani , J. G. Trafton

Current deep learning methods for low-light image enhancement (LLIE) typically rely on pixel-wise mapping learned from paired data. However, these methods often overlook the importance of considering degradation representations, which can…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Tao Wang , Kaihao Zhang , Ziqian Shao , Wenhan Luo , Bjorn Stenger , Tae-Kyun Kim , Wei Liu , Hongdong Li

Existing methods have demonstrated effective performance on a single degradation type. In practical applications, however, the degradation is often unknown, and the mismatch between the model and the degradation will result in a severe…

Computer Vision and Pattern Recognition · Computer Science 2024-12-18 Mingde Yao , Ruikang Xu , Yuanshen Guan , Jie Huang , Zhiwei Xiong

Detecting illicit visual content demands more than image-level NSFW flags; moderators must also know what objects make an image illegal and where those objects occur. We introduce a zero-shot pipeline that simultaneously (i) detects if an…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Sheng Hang , Chaoxiang He , Hongsheng Hu , Hanqing Hu , Bin Benjamin Zhu , Shi-Feng Sun , Dawu Gu , Shuo Wang

Recent years have witnessed the great advances of deep neural networks (DNNs) in light field (LF) image super-resolution (SR). However, existing DNN-based LF image SR methods are developed on a single fixed degradation (e.g., bicubic…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Yingqian Wang , Zhengyu Liang , Longguang Wang , Jungang Yang , Wei An , Yulan Guo

Natural images captured by mobile devices often suffer from multiple types of degradation, such as noise, blur, and low light. Traditional image restoration methods require manual selection of specific tasks, algorithms, and execution…

Computer Vision and Pattern Recognition · Computer Science 2024-07-26 Haoyu Chen , Wenbo Li , Jinjin Gu , Jingjing Ren , Sixiang Chen , Tian Ye , Renjing Pei , Kaiwen Zhou , Fenglong Song , Lei Zhu

Vision-language models (VLMs) excel in semantic tasks but falter at a core human capability: detecting hidden content in optical illusions or AI-generated images through perceptual adjustments like zooming. We introduce HC-Bench, a…

Computation and Language · Computer Science 2025-10-16 Sifan Li , Yujun Cai , Yiwei Wang

Recent works have shown the effectiveness of Large Vision Language Models (VLMs or LVLMs) in image manipulation detection. However, text manipulation detection is largely missing in these studies. We bridge this knowledge gap by analyzing…

Computer Vision and Pattern Recognition · Computer Science 2025-09-15 Vidit Vidit , Pavel Korshunov , Amir Mohammadi , Christophe Ecabert , Ketan Kotwal , Sébastien Marcel

This paper presents a detailed study of improving visual representations for vision language (VL) tasks and develops an improved object detection model to provide object-centric representations of images. Compared to the most widely used…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Pengchuan Zhang , Xiujun Li , Xiaowei Hu , Jianwei Yang , Lei Zhang , Lijuan Wang , Yejin Choi , Jianfeng Gao

Image Classification is a fundamental task in the field of computer vision that frequently serves as a benchmark for gauging advancements in Computer Vision. Over the past few years, significant progress has been made in image…

Computer Vision and Pattern Recognition · Computer Science 2023-12-06 Mahmoud Khalil , Ahmad Khalil , Alioune Ngom

Vision-Language Models (VLMs) often yield inconsistent descriptions of the same object across viewpoints, hindering the ability of embodied agents to construct consistent semantic representations over time. Previous methods resolved…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Tommaso Galliena , Stefano Rosa , Tommaso Apicella , Pietro Morerio , Alessio Del Bue , Lorenzo Natale

We present Stable-Layers, a reinforcement learning framework that eliminates the need for paired supervision by fine-tuning a pretrained layer decomposition model using only feedback from a vision-language model (VLM). Starting from…

Computer Vision and Pattern Recognition · Computer Science 2026-05-29 Ciara Rowles , Reshinth Adithyan , Nikhil Pinnaparaju , Vikram Voleti , Mark Boss

Visual-Language Models (VLMs) have demonstrated exceptional cross-modal understanding across various tasks, including zero-shot classification, image captioning, and visual question answering. However, their robustness to physically…

Computer Vision and Pattern Recognition · Computer Science 2026-04-20 Chengyin Hu , Xuemeng Sun , Jiaju Han , Qike Zhang , Xiang Chen , Xin Wang , Yiwei Wei , Jiahua Long

Search engines enable the retrieval of unknown information with texts. However, traditional methods fall short when it comes to understanding unfamiliar visual content, such as identifying an object that the model has never seen before.…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Zhixin Zhang , Yiyuan Zhang , Xiaohan Ding , Xiangyu Yue

Vision language models (VLMs) have shown promising reasoning capabilities across various benchmarks; however, our understanding of their visual perception remains limited. In this work, we propose an eye examination process to investigate…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Nam Hyeon-Woo , Moon Ye-Bin , Wonseok Choi , Lee Hyun , Tae-Hyun Oh