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Typically, a medical image offers spatial information on the anatomy (and pathology) modulated by imaging specific characteristics. Many imaging modalities including Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) can be…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Agisilaos Chartsias , Thomas Joyce , Giorgos Papanastasiou , Michelle Williams , David Newby , Rohan Dharmakumar , Sotirios A. Tsaftaris

Disentangled representation is a powerful technique to tackle domain shift problem in medical image analysis in unsupervised domain adaptation setting.However, previous methods only focus on exacting domain-invariant feature and ignore…

Image and Video Processing · Electrical Eng. & Systems 2023-03-07 Shuai Wang , Rui Li

Disentangled representation learning strives to extract the intrinsic factors within observed data. Factorizing these representations in an unsupervised manner is notably challenging and usually requires tailored loss functions or specific…

Computer Vision and Pattern Recognition · Computer Science 2024-06-13 Tao Yang , Cuiling Lan , Yan Lu , Nanning zheng

In the context of temporal image forensics, it is not evident that a neural network, trained on images from different time-slots (classes), exploits solely image age related features. Usually, images taken in close temporal proximity (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-03 Robert Jöchl , Andreas Uhl

Machine learning analysis of longitudinal neuroimaging data is typically based on supervised learning, which requires a large number of ground-truth labels to be informative. As ground-truth labels are often missing or expensive to obtain…

Machine Learning · Computer Science 2021-06-29 Qingyu Zhao , Zixuan Liu , Ehsan Adeli , Kilian M. Pohl

Neural shape models can represent complex 3D shapes with a compact latent space. When applied to dynamically deforming shapes such as the human hands, however, they would need to preserve temporal coherence of the deformation as well as the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-06 Binbin Xu , Lingni Ma , Yuting Ye , Tanner Schmidt , Christopher D. Twigg , Steven Lovegrove

Large intra-class variation is the result of changes in multiple object characteristics. Images, however, only show the superposition of different variable factors such as appearance or shape. Therefore, learning to disentangle and…

Computer Vision and Pattern Recognition · Computer Science 2019-06-18 Dominik Lorenz , Leonard Bereska , Timo Milbich , Björn Ommer

Image-to-image translation aims to learn the mapping between two visual domains. There are two main challenges for many applications: 1) the lack of aligned training pairs and 2) multiple possible outputs from a single input image. In this…

Computer Vision and Pattern Recognition · Computer Science 2018-08-03 Hsin-Ying Lee , Hung-Yu Tseng , Jia-Bin Huang , Maneesh Kumar Singh , Ming-Hsuan Yang

Recent learning-based approaches have made astonishing advances in calibrated medical imaging like computerized tomography (CT), yet they struggle to generalize in uncalibrated modalities -- notably magnetic resonance (MR) imaging, where…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Peirong Liu , Oula Puonti , Xiaoling Hu , Daniel C. Alexander , Juan E. Iglesias

Recent attempts to solve the problem of head reenactment using a single reference image have shown promising results. However, most of them either perform poorly in terms of photo-realism, or fail to meet the identity preservation problem,…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Michail Christos Doukas , Stefanos Zafeiriou , Viktoriia Sharmanska

Generating novel, yet realistic, images of persons is a challenging task due to the complex interplay between the different image factors, such as the foreground, background and pose information. In this work, we aim at generating such…

Computer Vision and Pattern Recognition · Computer Science 2018-06-18 Liqian Ma , Qianru Sun , Stamatios Georgoulis , Luc Van Gool , Bernt Schiele , Mario Fritz

As an increasing amount of image and video content will be analyzed by machines, there is demand for a new codec paradigm that is capable of compressing visual input primarily for the purpose of computer vision inference, while secondarily…

Image and Video Processing · Electrical Eng. & Systems 2023-01-12 Ezgi Ozyilkan , Mateen Ulhaq , Hyomin Choi , Fabien Racape

Age estimation from facial images is a complex and multifaceted challenge in computer vision. In this study, we present a novel hybrid architecture that combines ConvNeXt, a state-of-the-art advancement of convolutional neural networks…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Gaby Maroun , Salah Eddine Bekhouche , Fadi Dornaika

In this work, we study face verification in datasets where images of the same individuals exhibit significant age differences. This poses a major challenge for current face recognition and verification techniques. To address this issue, we…

Computer Vision and Pattern Recognition · Computer Science 2023-05-05 Eran Dahan , Yosi Keller

Object Transfiguration replaces an object in an image with another object from a second image. For example it can perform tasks like "putting exactly those eyeglasses from image A on the nose of the person in image B". Usage of exemplar…

Computer Vision and Pattern Recognition · Computer Science 2017-05-16 Shuchang Zhou , Taihong Xiao , Yi Yang , Dieqiao Feng , Qinyao He , Weiran He

With the rise of cameras and smart sensors, humanity generates an exponential amount of data. This valuable information, including underrepresented cases like AI in medical settings, can fuel new deep-learning tools. However, data…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Zikui Cai , Zhongpai Gao , Benjamin Planche , Meng Zheng , Terrence Chen , M. Salman Asif , Ziyan Wu

Existing methods for face image manipulation generally focus on editing the expression, changing some predefined attributes, or applying different filters. However, users lack the flexibility of controlling the shapes of different semantic…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Sen-Zhe Xu , Hao-Zhi Huang , Shi-Min Hu , Wei Liu

To minimize the effects of age variation in face recognition, previous work either extracts identity-related discriminative features by minimizing the correlation between identity- and age-related features, called age-invariant face…

Computer Vision and Pattern Recognition · Computer Science 2021-03-04 Zhizhong Huang , Junping Zhang , Hongming Shan

Biometric authentication systems play a crucial role in modern security systems. However, maintaining the balance of privacy and integrity of stored biometrics derivative data while achieving high recognition accuracy is often challenging.…

Computer Vision and Pattern Recognition · Computer Science 2024-08-29 Dmytro Zakharov , Oleksandr Kuznetsov , Emanuele Frontoni

Training of deep learning models for computer vision requires large image or video datasets from real world. Often, in collecting such datasets, we need to protect the privacy of the people captured in the images or videos, while still…

Computer Vision and Pattern Recognition · Computer Science 2019-02-13 Yuezun Li , Siwei Lyu