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Low-dose computed tomography (LDCT) offers reduced X-ray radiation exposure but at the cost of compromised image quality, characterized by increased noise and artifacts. Recently, transformer models emerged as a promising avenue to enhance…

图像与视频处理 · 电气工程与系统科学 2023-10-20 Dayang Wang , Yongshun Xu , Shuo Han , Zhan Wu , Li Zhou , Bahareh Morovati , Hengyong Yu

The crux of learning vision-language models is to extract semantically aligned information from visual and linguistic data. Existing attempts usually face the problem of coarse alignment, e.g., the vision encoder struggles in localizing an…

计算机视觉与模式识别 · 计算机科学 2024-03-27 Qinying Liu , Wei Wu , Kecheng Zheng , Zhan Tong , Jiawei Liu , Yu Liu , Wei Chen , Zilei Wang , Yujun Shen

Unpaired image-to-image translation (UNIT) aims to map images between two visual domains without paired training data. However, given a UNIT model trained on certain domains, it is difficult for current methods to incorporate new domains…

计算机视觉与模式识别 · 计算机科学 2023-06-27 Siyu Huang , Jie An , Donglai Wei , Zudi Lin , Jiebo Luo , Hanspeter Pfister

The extent to which text-only language models (LMs) learn to represent features of the non-linguistic world is an open question. Prior work has shown that pretrained LMs can be taught to caption images when a vision model's parameters are…

计算与语言 · 计算机科学 2023-03-10 Jack Merullo , Louis Castricato , Carsten Eickhoff , Ellie Pavlick

A variational autoencoder (VAE) is a probabilistic machine learning framework for posterior inference that projects an input set of high-dimensional data to a lower-dimensional, latent space. The latent space learned with a VAE offers…

机器学习 · 计算机科学 2022-11-16 Rafael Pastrana

We present the enhanced feature quantum autoencoder, or EF-QAE, a variational quantum algorithm capable of compressing quantum states of different models with higher fidelity. The key idea of the algorithm is to define a parameterized…

量子物理 · 物理学 2021-07-13 Carlos Bravo-Prieto

In this paper, we propose \textbf{UniCode}, a novel approach within the domain of multimodal large language models (MLLMs) that learns a unified codebook to efficiently tokenize visual, text, and potentially other types of signals. This…

计算机视觉与模式识别 · 计算机科学 2024-03-15 Sipeng Zheng , Bohan Zhou , Yicheng Feng , Ye Wang , Zongqing Lu

Multimodal Large Language Models have made significant strides in integrating visual and textual information, yet they often struggle with effectively aligning these modalities. We introduce a novel image tokenizer that bridges this gap by…

人工智能 · 计算机科学 2025-03-11 Wanpeng Zhang , Zilong Xie , Yicheng Feng , Yijiang Li , Xingrun Xing , Sipeng Zheng , Zongqing Lu

Recently, the remarkable advance of the Large Language Model (LLM) has inspired researchers to transfer its extraordinary reasoning capability to both vision and language data. However, the prevailing approaches primarily regard the visual…

计算机视觉与模式识别 · 计算机科学 2024-03-25 Yang Jin , Kun Xu , Kun Xu , Liwei Chen , Chao Liao , Jianchao Tan , Quzhe Huang , Bin Chen , Chenyi Lei , An Liu , Chengru Song , Xiaoqiang Lei , Di Zhang , Wenwu Ou , Kun Gai , Yadong Mu

Recent work leverages Vision Foundation Models as image encoders to boost the generative performance of latent diffusion models (LDMs), as their semantic feature distributions are easy to learn. However, such semantic features often lack…

计算机视觉与模式识别 · 计算机科学 2026-02-10 Siyu Liu , Chujie Qin , Hubery Yin , Qixin Yan , Zheng-Peng Duan , Chen Li , Jing Lyu , Chun-Le Guo , Chongyi Li

Blind image quality assessment (BIQA) is a challenging problem with important real-world applications. Recent efforts attempting to exploit powerful representations by deep neural networks (DNN) are hindered by the lack of subjectively…

计算机视觉与模式识别 · 计算机科学 2023-05-25 Zehong Zhou , Fei Zhou , Guoping Qiu

We present a novel masked image modeling (MIM) approach, context autoencoder (CAE), for self-supervised representation pretraining. We pretrain an encoder by making predictions in the encoded representation space. The pretraining tasks…

计算机视觉与模式识别 · 计算机科学 2023-08-11 Xiaokang Chen , Mingyu Ding , Xiaodi Wang , Ying Xin , Shentong Mo , Yunhao Wang , Shumin Han , Ping Luo , Gang Zeng , Jingdong Wang

Weakly supervised visual grounding (VG) aims to locate objects in images based on text descriptions. Despite significant progress, existing methods lack strong cross-modal reasoning to distinguish subtle semantic differences in text…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Yidan Wang , Chenyi Zhuang , Wutao Liu , Pan Gao , Nicu Sebe

While text-to-image (T2I) generation models have achieved remarkable progress in recent years, existing evaluation methodologies for vision-language alignment still struggle with the fine-grained semantic matching. Current approaches based…

计算机视觉与模式识别 · 计算机科学 2025-04-11 Zijian Zhang , Xuhui Zheng , Xuecheng Wu , Chong Peng , Xuezhi Cao

Learning sentence embeddings often requires a large amount of labeled data. However, for most tasks and domains, labeled data is seldom available and creating it is expensive. In this work, we present a new state-of-the-art unsupervised…

计算与语言 · 计算机科学 2021-09-13 Kexin Wang , Nils Reimers , Iryna Gurevych

Recent breakthroughs of pretrained language models have shown the effectiveness of self-supervised learning for a wide range of natural language processing (NLP) tasks. In addition to standard syntactic and semantic NLP tasks, pretrained…

计算与语言 · 计算机科学 2019-12-23 Wenhan Xiong , Jingfei Du , William Yang Wang , Veselin Stoyanov

Although pre-trained language models~(PLMs) have shown impressive performance by text-only self-supervised training, they are found lack of visual semantics or commonsense. Existing solutions often rely on explicit images for visual…

计算与语言 · 计算机科学 2023-05-29 Hangyu Guo , Kun Zhou , Wayne Xin Zhao , Qinyu Zhang , Ji-Rong Wen

Recent advancements in diffusion models have introduced fast sampling methods that can effectively produce high-quality images in just one or a few denoising steps. Interestingly, when these are distilled from existing diffusion models,…

计算机视觉与模式识别 · 计算机科学 2024-04-05 Rinon Gal , Or Lichter , Elad Richardson , Or Patashnik , Amit H. Bermano , Gal Chechik , Daniel Cohen-Or

This is an exploratory study that discovers the current image quantization (vector quantization) do not satisfy translation equivariance in the quantized space due to aliasing. Instead of focusing on anti-aliasing, we propose a simple yet…

计算机视觉与模式识别 · 计算机科学 2023-02-28 Woncheol Shin , Gyubok Lee , Jiyoung Lee , Eunyi Lyou , Joonseok Lee , Edward Choi

Variational Autoencoders (VAE) and their variants have been widely used in a variety of applications, such as dialog generation, image generation and disentangled representation learning. However, the existing VAE models have some…

机器学习 · 计算机科学 2020-06-23 Huajie Shao , Shuochao Yao , Dachun Sun , Aston Zhang , Shengzhong Liu , Dongxin Liu , Jun Wang , Tarek Abdelzaher