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We propose a new variational model for non-linear image fusion. Our approach is based on the use of an osmosis energy term related to the one studied in Vogel et al. (2013) and Weickert et al. (2013) The minimization of the proposed…

Computer Vision and Pattern Recognition · Computer Science 2020-03-26 Simone Parisotto , Luca Calatroni , Aurélie Bugeau , Nicolas Papadakis , Carola-Bibiane Schönlieb

Photorealistic avatars of human faces have come a long way in recent years, yet research along this area is limited by a lack of publicly available, high-quality datasets covering both, dense multi-view camera captures, and rich facial…

In this letter, we envision a new metaverse communication paradigm for virtual avatar faces, and develop the semantic face compression with compact 3D facial descriptors. The fundamental principle is that the communication of virtual avatar…

Computer Vision and Pattern Recognition · Computer Science 2023-11-23 Binzhe Li , Bolin Chen , Zhao Wang , Shiqi Wang , Yan Ye

Facial Image inpainting aim is to restore the missing or corrupted regions in face images while preserving identity, structural consistency and photorealistic image quality, a task specifically created for photo restoration. Though there…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Abhigyan Bhattacharya , Hiranmoy Roy , Debotosh Bhattacharjee

In this paper we address the following question, given a face representation, how many identities can it resolve? In other words, what is the capacity of the face representation? A scientific basis for estimating the capacity of a given…

Computer Vision and Pattern Recognition · Computer Science 2019-04-15 Sixue Gong , Vishnu Naresh Boddeti , Anil K. Jain

We examine the lattice generated by two pairs of supplementary vector subspaces of a finite-dimensional vector space by intersection and sum, with the aim of applying the results to the study of representations admitting two pairs of…

Representation Theory · Mathematics 2008-02-21 Lionel Bérard Bergery , Thomas Krantz

In this paper, a novel method for representation and recognition of the facial expressions in two-dimensional image sequences is presented. We apply a variation of two-dimensional heteroscedastic linear discriminant analysis (2DHLDA)…

Computer Vision and Pattern Recognition · Computer Science 2012-07-23 Mahmoud Khademi , Mohammad H. Kiapour , Mehran Safayani , Mohammad T. Manzuri , M. Shojaei

Prior knowledge of face shape and structure plays an important role in face inpainting. However, traditional face inpainting methods mainly focus on the generated image resolution of the missing portion without consideration of the special…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 Xian Zhang , Xin Wang , Bin Kong , Canghong Shi , Youbing Yin , Qi Song , Siwei Lyu , Jiancheng Lv , Canghong Shi , Xiaojie Li

In order to describe two-dimensionally packed cells in epithelial tissues both mathematically and physically, there have been developed several sorts of geometrical models, such as the vertex model, the finite element model, the…

Biological Physics · Physics 2014-11-19 Yukitaka Ishimoto , Yoshihiro Morishita

Performing a computer experiment can be viewed as observing a mapping between the model parameters and the corresponding model outputs predicted by the computer model. In view of this, experimental design for computer experiments can be…

Computation · Statistics 2017-12-29 Chang-Han Rhee , Enlu Zhou , Peng Qiu

Medical data range from genomic sequences and retinal photographs to structured laboratory results and unstructured clinical narratives. Although these modalities appear disparate, many encode convergent information about a single…

Quantitative Methods · Quantitative Biology 2025-06-06 Salil Patel

This paper presents a comparative study of two different methods, which are based on fusion and polar transformation of visual and thermal images. Here, investigation is done to handle the challenges of face recognition, which include pose…

Computer Vision and Pattern Recognition · Computer Science 2016-11-15 Mrinal Kanti Bhowmik , Debotosh Bhattacharjee , Dipak Kumar Basu , Mita Nasipuri

Diffusion probabilistic models (DPMs) have exhibited exceptional proficiency in generating visual media of outstanding quality and realism. Nonetheless, their potential in non-generative domains, such as face recognition, has yet to be…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Bowen Sun , Shibao Zheng

Consider a $k$-valued network. Two kinds of (control) invariant subspaces, called state and dual invariant subspaces, are proposed, which are subspaces of state space and dual space respectively. Algorithms are presented to verify whether a…

Systems and Control · Electrical Eng. & Systems 2022-09-12 Daizhan Cheng , Hongsheng Qi , Xiao Zhang , Zhengping Ji

Although face analysis has achieved remarkable improvements in the past few years, designing a multi-task face analysis model is still challenging. Most face analysis tasks are studied as separate problems and do not benefit from the…

Computer Vision and Pattern Recognition · Computer Science 2024-05-16 Haomiao Sun , Mingjie He , Shiguang Shan , Hu Han , Xilin Chen

Massive captured face images are stored in the database for the identification of individuals. However, these images can be observed unintentionally by data managers, which is not at the will of individuals and may cause privacy violations.…

Computer Vision and Pattern Recognition · Computer Science 2024-08-26 Tao Wang , Yushu Zhang , Zixuan Yang , Xiangli Xiao , Hua Zhang , Zhongyun Hua

A finite-dimensional pseudo-unitary framework is set up for describing the dynamics of free elementary particles in a purely relativistic quantum mechanical way. States of any individual particles or antiparticles are defined as suitably…

Mathematical Physics · Physics 2015-02-03 Jorge G. Cardoso

This study explores a streamlined facial data collection method for conversational contexts, addressing the limitations of existing approaches that often require extensive datasets and prioritize technical metrics over user perception and…

Human-Computer Interaction · Computer Science 2026-02-03 Seoyoung Kang , Seokhwan Yang , Hail Song , Boram Yoon , Jinwook Kim , Kangsoo Kim , Woontack Woo

Conceptual spaces are geometric representations of conceptual knowledge, in which entities correspond to points, natural properties correspond to convex regions, and the dimensions of the space correspond to salient features. While…

Artificial Intelligence · Computer Science 2017-10-26 Shoaib Jameel , Steven Schockaert

Various factors, such as identities, views (poses), and illuminations, are coupled in face images. Disentangling the identity and view representations is a major challenge in face recognition. Existing face recognition systems either use…

Computer Vision and Pattern Recognition · Computer Science 2014-06-27 Zhenyao Zhu , Ping Luo , Xiaogang Wang , Xiaoou Tang