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Related papers: MAEDiff: Masked Autoencoder-enhanced Diffusion Mod…

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Text-guided image editing model has achieved great success in general domain. However, directly applying these models to the fashion domain may encounter two issues: (1) Inaccurate localization of editing region; (2) Weak editing magnitude.…

Computer Vision and Pattern Recognition · Computer Science 2025-01-16 Zechao Zhan , Dehong Gao , Jinxia Zhang , Jiale Huang , Yang Hu , Xin Wang

Part-level features are crucial for image understanding, but few studies focus on them because of the lack of fine-grained labels. Although unsupervised part discovery can eliminate the reliance on labels, most of them cannot maintain…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Jiahao Xia , Yike Wu , Wenjian Huang , Jianguo Zhang , Jian Zhang

Deep generative models have emerged as promising tools for detecting arbitrary anomalies in data, dispensing with the necessity for manual labelling. Recently, autoregressive transformers have achieved state-of-the-art performance for…

Deep unsupervised representation learning has recently led to new approaches in the field of Unsupervised Anomaly Detection (UAD) in brain MRI. The main principle behind these works is to learn a model of normal anatomy by learning to…

Image and Video Processing · Electrical Eng. & Systems 2020-04-09 Christoph Baur , Stefan Denner , Benedikt Wiestler , Shadi Albarqouni , Nassir Navab

Supervised machine learning has enabled accurate pathology detection in brain MRI, but requires training data from diseased subjects that may not be readily available in some scenarios, for example, in the case of rare diseases.…

Image and Video Processing · Electrical Eng. & Systems 2025-06-13 Ana Lawry Aguila , Peirong Liu , Oula Puonti , Juan Eugenio Iglesias

Denoising diffusion models produce high-fidelity image samples by capturing the image distribution in a progressive manner while initializing with a simple distribution and compounding the distribution complexity. Although these models have…

Computer Vision and Pattern Recognition · Computer Science 2025-07-04 Ayantika Das , Moitreya Chaudhuri , Koushik Bhat , Keerthi Ram , Mihail Bota , Mohanasankar Sivaprakasam

Masked autoencoders (MAEs) have displayed significant potential in the classification and semantic segmentation of medical images in the last year. Due to the high similarity of human tissues, even slight changes in medical images may…

Computer Vision and Pattern Recognition · Computer Science 2023-05-11 Jiawei Mao , Shujian Guo , Yuanqi Chang , Xuesong Yin , Binling Nie

Computed Tomography (CT) technology reduces radiation haz-ards to the human body through sparse sampling, but fewer sampling angles pose challenges for image reconstruction. Score-based generative models are widely used in sparse-view CT…

Image and Video Processing · Electrical Eng. & Systems 2025-12-22 Junyan Zhang , Mengxiao Geng , Pinhuang Tan , Yi Liu , Zhili Liu , Bin Huang , Qiegen Liu

Although neural networks have proven very successful in a number of medical image analysis applications, their use remains difficult when targeting subtle tasks such as the identification of barely visible brain lesions, especially given…

Image and Video Processing · Electrical Eng. & Systems 2021-10-26 Verónica Muñoz-Ramírez , Nicolas Pinon , Florence Forbes , Carole Lartizen , Michel Dojat

Diffusion models have achieved significant success in both natural image and medical image domains, encompassing a wide range of applications. Previous investigations in medical images have often been constrained to specific anatomical…

Computer Vision and Pattern Recognition · Computer Science 2025-12-08 Yongrui Yu , Yannian Gu , Shaoting Zhang , Xiaofan Zhang

Weakly-supervised diffusion models (DMs) in anomaly segmentation, leveraging image-level labels, have attracted significant attention for their superior performance compared to unsupervised methods. It eliminates the need for pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2025-01-09 Yiming Che , Fazle Rafsani , Jay Shah , Md Mahfuzur Rahman Siddiquee , Teresa Wu

Ultrasonography is an essential tool in mid-pregnancy for assessing fetal development, appreciated for its non-invasive and real-time imaging capabilities. Yet, the interpretation of ultrasound images is often complicated by acoustic…

Image and Video Processing · Electrical Eng. & Systems 2024-07-23 Hanna Mykula , Lisa Gasser , Silvia Lobmaier , Julia A. Schnabel , Veronika Zimmer , Cosmin I. Bercea

Reconstruction-based methods have been commonly used for unsupervised anomaly detection, in which a normal image is reconstructed and compared with the given test image to detect and locate anomalies. Recently, diffusion models have shown…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Di Wu , Shicai Fan , Xue Zhou , Li Yu , Yuzhong Deng , Jianxiao Zou , Baihong Lin

Medical image segmentation is crucial for clinical diagnosis and treatment planning. Traditional methods typically produce a single segmentation mask, failing to capture inherent uncertainty. Recent generative models enable the creation of…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Huynh Trinh Ngoc , Toan Nguyen Hai , Ba Luong Son , Long Tran Quoc

Unsupervised anomaly detection (UAD) based on deep generative modelling has been increasingly explored for identifying pathological brain abnormalities without requiring voxel-level annotations. By learning the distribution of healthy…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Youwan Mahé , Elise Bannier , Stéphanie Leplaideur , Elisa Fromont , Francesca Galassi

Diffusion-based generative models have shown promise in synthesizing histopathology images to address data scarcity caused by privacy constraints. Diagnostic text reports provide high-level semantic descriptions, and masks offer…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Mahesh Bhosale , Abdul Wasi , Yuanhao Zhai , Yunjie Tian , Samuel Border , Nan Xi , Pinaki Sarder , Junsong Yuan , David Doermann , Xuan Gong

Contrastive Analysis (CA) detects anomalies by contrasting patterns unique to a target group (e.g., unhealthy subjects) from those in a background group (e.g., healthy subjects). In the context of brain MRIs, existing CA approaches rely on…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Cristiano Patrício , Carlo Alberto Barbano , Attilio Fiandrotti , Riccardo Renzulli , Marco Grangetto , Luis F. Teixeira , João C. Neves

Self-supervised learning has proved effective for skeleton-based human action understanding. However, previous works either rely on contrastive learning that suffers false negative problems or are based on reconstruction that learns too…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Lehong Wu , Lilang Lin , Jiahang Zhang , Yiyang Ma , Jiaying Liu

Applying machine learning to real-world medical data, e.g. from hospital archives, has the potential to revolutionize disease detection in brain images. However, detecting pathology in such heterogeneous cohorts is a difficult challenge.…

Image and Video Processing · Electrical Eng. & Systems 2025-08-06 Ana Lawry Aguila , Ayodeji Ijishakin , Juan Eugenio Iglesias , Tomomi Takenaga , Yukihiro Nomura , Takeharu Yoshikawa , Osamu Abe , Shouhei Hanaoka

Multimodal neuroimaging provides complementary insights for Alzheimer's disease diagnosis, yet clinical datasets frequently suffer from missing modalities. We propose ACADiff, a framework that synthesizes missing brain imaging modalities…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Rong Zhou , Houliang Zhou , Yao Su , Brian Y. Chen , Yu Zhang , Lifang He , Alzheimer's Disease Neuroimaging Initiative