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Facial expression spotting, identifying periods where facial expressions occur in a video, is a significant yet challenging task in facial expression analysis. The issues of irrelevant facial movements and the challenge of detecting subtle…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Yicheng Deng , Hideaki Hayashi , Hajime Nagahara

This paper investigates the feasibility of using the periocular region for expression recognition. Most works have tried to solve this by analyzing the whole face. Periocular is the facial region in the immediate vicinity of the eye. It has…

计算机视觉与模式识别 · 计算机科学 2020-10-19 Fernando Alonso-Fernandez , Josef Bigun , Cristofer Englund

A micro-expression is a spontaneous unconscious facial muscle movement that can reveal the true emotions people attempt to hide. Although manual methods have made good progress and deep learning is gaining prominence. Due to the short…

计算机视觉与模式识别 · 计算机科学 2023-01-12 Fengping Wang , Jie Li , Chun Qi , Lin Wang , Pan Wang

Micro-Expression Recognition has become challenging, as it is extremely difficult to extract the subtle facial changes of micro-expressions. Recently, several approaches proposed several expression-shared features algorithms for…

计算机视觉与模式识别 · 计算机科学 2021-01-14 Ling Zhou , Qirong Mao , Xiaohua Huang , Feifei Zhang , Zhihong Zhang

Facial expressions, vital in non-verbal human communication, have found applications in various computer vision fields like virtual reality, gaming, and emotional AI assistants. Despite advancements, many facial expression generation models…

计算机视觉与模式识别 · 计算机科学 2024-06-14 Hamza Bouzid , Lahoucine Ballihi

Dense 3D facial motion capture from only monocular in-the-wild pairs of RGB images is a highly challenging problem with numerous applications, ranging from facial expression recognition to facial reenactment. In this work, we propose…

计算机视觉与模式识别 · 计算机科学 2020-05-18 Mohammad Rami Koujan , Anastasios Roussos , Stefanos Zafeiriou

Facial optical flow supports a wide range of tasks in facial motion analysis. However, the lack of high-resolution facial optical flow datasets has hindered progress in this area. In this paper, we introduce Splatting Rasterization Flow…

计算机视觉与模式识别 · 计算机科学 2026-01-13 JiaLin Zhang , Dong Li

Face analysis is a core part of computer vision, in which remarkable progress has been observed in the past decades. Current methods achieve recognition and tracking with invariance to fundamental modes of variation such as illumination, 3D…

计算机视觉与模式识别 · 计算机科学 2018-03-12 Grigorios G. Chrysos , Paolo Favaro , Stefanos Zafeiriou

High-level manipulation of facial expressions in images --- such as changing a smile to a neutral expression --- is challenging because facial expression changes are highly non-linear, and vary depending on the appearance of the face. We…

计算机视觉与模式识别 · 计算机科学 2016-12-01 Raymond Yeh , Ziwei Liu , Dan B Goldman , Aseem Agarwala

Machine learning has been used to recognize emotions in faces, typically by looking for 8 different emotional states (neutral, happy, sad, surprise, fear, disgust, anger and contempt). We consider two approaches: feature recognition based…

计算机视觉与模式识别 · 计算机科学 2022-08-23 Siddartha Dalal , Sierra Vo , Michael Lesk , Wesley Yuan

Optical Flow (OF) and depth are commonly used for visual odometry since they provide sufficient information about camera ego-motion in a rigid scene. We reformulate the problem of ego-motion estimation as a problem of motion estimation of a…

计算机视觉与模式识别 · 计算机科学 2019-07-18 Igor Slinko , Anna Vorontsova , Filipp Konokhov , Olga Barinova , Anton Konushin

Deformable convolution, originally proposed for the adaptation to geometric variations of objects, has recently shown compelling performance in aligning multiple frames and is increasingly adopted for video super-resolution. Despite its…

计算机视觉与模式识别 · 计算机科学 2020-09-16 Kelvin C. K. Chan , Xintao Wang , Ke Yu , Chao Dong , Chen Change Loy

Facial expressions vary from person to person, and the brightness, contrast, and resolution of every random image are different. This is why recognizing facial expressions is very difficult. This article proposes an efficient system for…

计算机视觉与模式识别 · 计算机科学 2022-09-26 Faisal Ghaffar

Facial expression manipulation aims at editing facial expression with a given condition. Previous methods edit an input image under the guidance of a discrete emotion label or absolute condition (e.g., facial action units) to possess the…

计算机视觉与模式识别 · 计算机科学 2020-12-07 Jun Ling , Han Xue , Li Song , Shuhui Yang , Rong Xie , Xiao Gu

Micro-expressions are brief spontaneous facial expressions that appear on a face when a person conceals an emotion, making them different to normal facial expressions in subtlety and duration. Currently, emotion classes within the CASME II…

计算机视觉与模式识别 · 计算机科学 2017-12-05 Adrian K. Davison , Walied Merghani , Moi Hoon Yap

Facial expression analysis is one of the popular fields of research in human computer interaction (HCI). It has several applications in next generation user interfaces, human emotion analysis, behavior and cognitive modeling. In this paper,…

计算机视觉与模式识别 · 计算机科学 2015-05-18 S. L. Happy , Anjith George , Aurobinda Routray

The goal of this investigation is to quantify to what extent computer vision methods can correctly classify facial expressions on a sign language dataset. We extend our experiments by recognizing expressions using only the upper or lower…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Fabrizio Nunnari , Alakshendra Jyotsnaditya Ramkrishna Singh , Patrick Gebhard

Video facial expression recognition is useful for many applications and received much interest lately. Although some solutions give really good results in a controlled environment (no occlusion), recognition in the presence of partial…

计算机视觉与模式识别 · 计算机科学 2021-12-06 Delphine Poux , Benjamin Allaert , Nacim Ihaddadene , Ioan Marius Bilasco , Chaabane Djeraba , Mohammed Bennamoun

The facial expression recognition is an ocular task that can be performed without human discomfort, is really a speedily growing on the computer research field. There are many applications and programs uses facial expression to evaluate…

计算机视觉与模式识别 · 计算机科学 2015-06-08 Abdelmajid Hassan Mansour , Gafar Zen Alabdeen Salh , Ali Shaif Alhalemi

Facial micro-expressions are sudden involuntary minute muscle movements which reveal true emotions that people try to conceal. Spotting a micro-expression and recognizing it is a major challenge owing to its short duration and intensity.…

计算机视觉与模式识别 · 计算机科学 2019-04-22 Sauradip Nag , Ayan Kumar Bhunia , Aishik Konwer , Partha Pratim Roy