Results 161 to 170 of about 231 (215)

Side Reaction Pathway Modulation for Hydrogen Evolution‐Free Aqueous Zn‐Ion Batteries

Advanced Functional Materials, EarlyView.
A ZnO–TeO2–Te ternary composite layer with a unique rice grain‐like morphology is spontaneously formed on the Zn anode via telluric acid additive. This functional interphase effectively suppresses side reactions such as zinc hydroxide sulfate formation, hydrogen evolution, and Zn corrosion, enabling highly reversible and stable Zn metal cycling in ...
Young‐Hoon Lee, Eunbin Park, Yung‐Eun Sung, Seung‐Ho Yu   +3 more
wiley   +1 more source

Tailoring Redox Active Sites with Dual‐Interfacial Electric Fields for Concurrent Photocatalytic Biomass Valorization and H2 Production

Advanced Functional Materials, EarlyView.
A rationally engineered bifunctional photocatalyst is reported, which achieves simultaneous selective oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐diformylfuran (DFF) and efficient H2 evolution. By precisely positioning Au and Co3O4 on Zn3In2S6 nanosheet, dual interfacial electric fields are well constructed to spatially separate ...
Shiqing Li, Sugang Meng, Huijun Zhang, Alain R. Puente‐Santiago, Zhongliao Wang, Shifu Chen, Mario J. Muñoz‐Batista, Yu‐Ming Zheng, Bo Weng   +8 more
wiley   +1 more source

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Facial Expression Synthesis on Robots

Proceedings of the Tenth Annual ACM/IEEE International Conference on Human-Robot Interaction Extended Abstracts, 2015
We present a generalized technique for easily synthesizing facial expressions on robotic faces. In contrast to other work, our approach works in near real time with a high level of accuracy, does not require any manual labeling, is a fully open-source ROS module, and can enable the research community to perform objective and systematic comparisons ...
Maryam Moosaei, Cory J. Hayes, Laurel D. Riek   +2 more
openaire   +1 more source

Synthesis of Facial Expressions in Photographs

ACM Computing Surveys, 2019
The synthesis of facial expressions has applicationsin areas such as interactive games, biometrics systems, and training of people with disorders, among others. Although this is an area relatively well explored in the literature, there are no recent studies proposing to systematize an overview of research in the area.
Rafael Luiz Testa, Cléber Gimenez Corrêa, Ariane Machado-Lima, Fátima L. S. Nunes   +3 more
openaire   +1 more source

Joint Expression Synthesis and Representation Learning for Facial Expression Recognition

IEEE Transactions on Circuits and Systems for Video Technology, 2022
Facial expression recognition (FER) is a challenging task due to the large appearance variations and the lack of sufficient training data. Conventional deep approaches either learn a good representation through deep models or synthesize images automatically to enlarge the training set.
Xi Zhang, Feifei Zhang, Changsheng Xu
openaire   +1 more source

Geometry-driven photorealistic facial expression synthesis

IEEE Transactions on Visualization and Computer Graphics, 2006
Expression mapping (also called performance driven animation) has been a popular method for generating facial animations. A shortcoming of this method is that it does not generate expression details such as the wrinkles due to skin deformations. In this paper, we provide a solution to this problem.
Qingshan, Zhang, Zicheng, Liu, Baining, Guo, Demetri, Terzopoulos, Heung-Yeung, Shum   +4 more
openaire   +2 more sources

FACIAL EXPRESSION SYNTHESIS BASED ON FACIAL COMPONENT MODEL

International Journal of Pattern Recognition and Artificial Intelligence, 2009
Statistical model based facial expression synthesis methods are robust and can be easily used in real environment. But facial expressions of humans are varied. How to represent and synthesize expressions that are is not included in the training set is an unresolved problem in statistical model based researches.
LEI XIONG, NANNING ZHENG, SHAOYI DU, JIANYI LIU   +3 more
openaire   +1 more source

Interactive analysis and synthesis of facial expressions based on personal facial expression space

Sixth IEEE International Conference on Automatic Face and Gesture Recognition, 2004. Proceedings., 2004
In this paper novel methods for interactive facial expression analysis and synthesis are presented based on personal facial expression space (PFES). We proposed PFES to recognize person-specific, primary facial expression image sequences by both temporal and spatial characteristics taken into consideration.
N.P. Chandrasiri, T. Naemura, H. Harashima   +2 more
openaire   +1 more source

Automatic Synthesis of Realistic Facial Expressions

2007 IEEE International Symposium on Signal Processing and Information Technology, 2007
Facial expressions exhibit not only facial feature motions, but also subtle changes in illumination and appearance. Since it is difficult to generate realistic facial expressions by using only geometric deformations, the details such as textures should also be deformed to achieve expression that is more realistic.
Jeong Ho Lee, Jong Min Lee, Hyung Jin Kim, Young Shik Moon   +3 more
openaire   +1 more source

MPEG-4 facial expression synthesis

Personal and Ubiquitous Computing, 2007
The current work will describe an approach to synthesize expressions, including intermediate ones, via the tools provided in the MPEG-4 standard based on real measurements and on universally accepted assumptions of their meaning, taking into account results of Whissel's study.
L. Malatesta, A. Raouzaiou, K. Karpouzis, S. Kollias   +3 more
openaire   +1 more source