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Instance-level Image Retrieval (IIR), or simply Instance Retrieval, deals with the problem of finding all the images within an dataset that contain a query instance (e.g. an object). This paper makes the first attempt that tackles this…

Computer Vision and Pattern Recognition · Computer Science 2022-09-29 Tao Wu , Tie Luo , Donald Wunsch

With the recent exhibited strength of generative diffusion models, an open research question is if images generated by these models can be used to learn better visual representations. While this generative data expansion may suffice for…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Nyle Siddiqui , Florinel Alin Croitoru , Gaurav Kumar Nayak , Radu Tudor Ionescu , Mubarak Shah

Composed image retrieval (CIR) addresses the task of retrieving a target image by jointly interpreting a reference image and a modification text that specifies the intended change. Most existing methods are still built upon contrastive…

Computer Vision and Pattern Recognition · Computer Science 2026-03-05 Geon Park , Ji-Hoon Park , Seong-Whan Lee

Composed image retrieval (CIR) aims to retrieve the target image based on a multimodal query, i.e., a reference image paired with corresponding modification text. Recent CIR studies leverage vision-language pre-trained (VLP) methods as the…

Multimedia · Computer Science 2024-04-25 Haokun Wen , Xuemeng Song , Xiaolin Chen , Yinwei Wei , Liqiang Nie , Tat-Seng Chua

Although diffusion-based real-world image restoration (Real-IR) has achieved remarkable progress, efficiently leveraging ultra-large-scale pre-trained text-to-image (T2I) models and fully exploiting their potential remain significant…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Purui Bai , Junxian Duan , Pin Wang , Jinhua Hao , Ming Sun , Chao Zhou , Huaibo Huang

Multilingual Large Language Models(MLLMs) demonstrate strong generalization across languages, yet they remain prone to hallucinations, especially in low-resource languages, due to training data imbalances. These hallucinations, which…

Computation and Language · Computer Science 2025-07-22 Weihua Zheng , Roy Ka-Wei Lee , Zhengyuan Liu , Kui Wu , AiTi Aw , Bowei Zou

While Diffusion Large Language Models (dLLMs) have emerged as a promising non-autoregressive paradigm comparable to autoregressive (AR) models, their faithfulness, specifically regarding hallucination, remains largely underexplored. To…

Computation and Language · Computer Science 2026-04-14 Zhengnan Guo , Fei Tan

Large language models (LLMs) frequently produce inaccurate or fabricated information, known as "hallucinations," which compromises their reliability. Existing approaches often train an "Evil LLM" to deliberately generate hallucinations on…

Computation and Language · Computer Science 2026-01-06 Jiani Guo , Xiangke Zeng , Jie Wu , Zuchao Li

Diffusion-based decoding has recently emerged as an appealing alternative to autoregressive (AR) generation, offering the potential to update multiple tokens in parallel and reduce latency. However, diffusion vision language models (dVLMs)…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Lunbin Zeng , Jingfeng Yao , Bencheng Liao , Hongyuan Tao , Wenyu Liu , Xinggang Wang

Large vision-language models (LVLMs) often hallucinate when language priors dominate weak or ambiguous visual evidence. Existing contrastive decoding methods mitigate this problem by comparing predictions from the original image with those…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Tian Qin , Junzhe Chen , Yuqing Shi , Tianshu Zhang , Qiang Ju , Lijie Wen

Multimodal Large Language Models (MLLMs) have demonstrated remarkable reasoning capabilities yet continue to suffer from hallucination, where generated text contradicts visual content. In this paper, we introduce Dual-Anchor Introspective…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Yebo Wu , Han Jin , Zhijiang Guo , Li Li

We present ControlSR, a new method that can tame Diffusion Models for consistent real-world image super-resolution (Real-ISR). Previous Real-ISR models mostly focus on how to activate more generative priors of text-to-image diffusion models…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Yuhao Wan , Peng-Tao Jiang , Qibin Hou , Hao Zhang , Jinwei Chen , Ming-Ming Cheng , Bo Li

Traditional monocular depth estimation suffers from inherent ambiguity and visual nuisances. We demonstrate that language can enhance monocular depth estimation by providing an additional condition (rather than images alone) aligned with…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Ziyao Zeng , Jingcheng Ni , Daniel Wang , Patrick Rim , Younjoon Chung , Fengyu Yang , Byung-Woo Hong , Alex Wong

Image restoration faces challenges including ineffective feature fusion, computational bottlenecks and inefficient diffusion processes. To address these, we propose DiffRWKVIR, a novel framework unifying Test-Time Training (TTT) with…

Computer Vision and Pattern Recognition · Computer Science 2025-12-15 Rongchang Lu , Tianduo Luo , Yunzhi Jiang , Conghan Yue , Pei Yang , Guibao Liu , Changyang Gu

Diffusion priors have recently demonstrated strong capability in enhancing the quality of sparse-view 3D reconstruction by augmenting training views at novel viewpoints, but they inevitably introduce hallucinated content -- artifacts…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Xi Liu , Weiwei Sun , Zhou Ren , Chris Broaddus , Siyu Huang , Laurent Guigues

Large language model hallucination represents a critical challenge where outputs deviate from factual accuracy due to distributional biases in training data. While recent investigations establish that specific hidden layers exhibit…

Computation and Language · Computer Science 2025-09-29 Wenkai Wang , Vincent Lee , Yizhen Zheng

Image alignment is a fundamental task in computer vision with broad applications. Existing methods predominantly employ optical flow-based image warping. However, this technique is susceptible to common challenges such as occlusions and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Xinglong Luo , Ao Luo , Zhengning Wang , Yueqi Yang , Chaoyu Feng , Lei Lei , Bing Zeng , Shuaicheng Liu

Brain network analysis plays an increasingly important role in studying brain function and the exploring of disease mechanisms. However, existing brain network construction tools have some limitations, including dependency on empirical…

Neurons and Cognition · Quantitative Biology 2024-07-29 Yongcheng Zong , Shuqiang Wang

Data Augmentation (DA), i.e., synthesizing faithful and diverse samples to expand the original training set, is a prevalent and effective strategy to improve the performance of various data-scarce tasks. With the powerful image generation…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Yanghao Wang , Long Chen

Image restoration aims to recover content from inputs degraded by various factors, such as adverse weather, blur, and noise. Perceptual Image Restoration (PIR) methods improve visual quality but often do not support downstream tasks…

Image and Video Processing · Electrical Eng. & Systems 2025-06-03 I-Hsiang Chen , Wei-Ting Chen , Yu-Wei Liu , Yuan-Chun Chiang , Sy-Yen Kuo , Ming-Hsuan Yang