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Related papers: Tomographic X-ray data of 3D emoji

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X-ray computed tomography is a powerful tool for volumetric imaging, where three-dimensional (3D) images are generated from a large number of individual X-ray projection images. Collecting the required number of low noise projection images…

Image and Video Processing · Electrical Eng. & Systems 2025-04-30 Zhenduo Shang , Thomas Blumensath

We present a novel method to jointly learn a 3D face parametric model and 3D face reconstruction from diverse sources. Previous methods usually learn 3D face modeling from one kind of source, such as scanned data or in-the-wild images.…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Yudong Guo , Lin Cai , Juyong Zhang

Most social media platforms are largely based on text, and users often write posts to describe where they are, what they are seeing, and how they are feeling. Because written text lacks the emotional cues of spoken and face-to-face…

Computation and Language · Computer Science 2017-09-18 Fred Morstatter , Kai Shu , Suhang Wang , Huan Liu

With the explosive growth of social media, opinionated postings with emojis have increased explosively. Many emojis are used to express emotions, attitudes, and opinions. Emoji representation learning can be helpful to improve the…

Computation and Language · Computer Science 2022-05-24 Xiaowei Yuan , Jingyuan Hu , Xiaodan Zhang , Honglei Lv

Tomographic representation of an arbitrary nature signal is considered. Comparison of a tomographic representation and a fractional Fourier transform is carried out. Application of tomogram representation or identical to it the Radon…

Medical Physics · Physics 2018-07-04 Yu. M. Belousov , N. N. Elkin , V. I. Man'ko , E. G. Popov , S. V. Revenko

Current expressive avatar systems rely heavily on visual cues, failing when faces are occluded or when emotions remain internal. We present Mind-to-Face, the first framework that decodes non-invasive electroencephalogram (EEG) signals…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Haolin Xiong , Tianwen Fu , Pratusha Bhuvana Prasad , Yunxuan Cai , Haiwei Chen , Wenbin Teng , Hanyuan Xiao , Yajie Zhao

Over the past decade, emoji have emerged as a new and widespread form of digital communication, spanning diverse social networks and spoken languages. We propose to treat these ideograms as a new modality in their own right, distinct in…

Computation and Language · Computer Science 2018-02-05 Spencer Cappallo , Stacey Svetlichnaya , Pierre Garrigues , Thomas Mensink , Cees G. M. Snoek

Computed Tomography (CT) is an imaging technique where information about an object are collected at different angles (called projections or scans). Then the cross-sectional image showing the internal structure of the slice is produced by…

Image and Video Processing · Electrical Eng. & Systems 2022-09-07 Zhengchun Liu , Rajkumar Kettimuthu , Ian Foster

Impressive progress has been made in audio-driven 3D facial animation recently, but synthesizing 3D talking-head with rich emotion is still unsolved. This is due to the lack of 3D generative models and available 3D emotional dataset with…

Computer Vision and Pattern Recognition · Computer Science 2021-04-27 Qianyun Wang , Zhenfeng Fan , Shihong Xia

Several computer algorithms for recognition of visible human emotions are compared at the web camera scenario using CNN/MMOD face detector. The recognition refers to four face expressions: smile, surprise, anger, and neutral. At the feature…

Computer Vision and Pattern Recognition · Computer Science 2019-02-01 Rafal Pilarczyk , Xin Chang , Wladyslaw Skarbek

Advances in instrumentation and computation have enabled increasingly sophisticated tomographic reconstruction methods. However, existing evaluation practices -- often based on simple phantoms and global image metrics -- are limited in…

Medical Physics · Physics 2026-04-06 Anna Frixou , Theodoros Leontiou , Efstathios Stiliaris , Costas N. Papanicolas

The frequent use of Emojis on social media platforms has created a new form of multimodal social interaction. Developing methods for the study and representation of emoji semantics helps to improve future multimodal communication systems.…

Computation and Language · Computer Science 2018-05-03 Francesco Barbieri , Luis Marujo , Pradeep Karuturi , William Brendel , Horacio Saggion

A general framework is presented which unifies the treatment of wavelet-like, quasidistribution, and tomographic transforms. Explicit formulas relating the three types of transforms are obtained. The case of transforms associated to the…

Mathematical Physics · Physics 2009-11-07 M. A. Man'ko , V. I. Man'ko , R. Vilela Mendes

Emojis are small images that are commonly included in social media text messages. The combination of visual and textual content in the same message builds up a modern way of communication, that automatic systems are not used to deal with.…

Computation and Language · Computer Science 2018-04-18 Francesco Barbieri , Miguel Ballesteros , Francesco Ronzano , Horacio Saggion

Historically, patient datasets have been used to develop and validate various reconstruction algorithms for PET/MRI and PET/CT. To enable such algorithm development, without the need for acquiring hundreds of patient exams, in this paper we…

The demand for high-throughput electron tomography is rapidly increasing in biological and material sciences. However, this 3D imaging technique is computationally bottlenecked by alignment and reconstruction which runs from hours to days.…

One of the serious issues in communication between people is hiding information from others, and the best way for this, is deceiving them. Since nowadays face images are mostly used in three dimensional format, in this paper we are going to…

Multimedia · Computer Science 2018-01-19 Mohsen Moradi , Mohammad-Reza Sadeghi

To estimate the spatial resolution of microtomographs, a test object on the submicrometer scale was prepared by focused ion beam milling and subjected to microtomographic analysis. Since human tissues are composed of cells and extracellular…

Instrumentation and Detectors · Physics 2016-09-09 Ryuta Mizutani , Akihisa Takeuchi , R. Yoshiyuki Osamura , Susumu Takekoshi , Kentaro Uesugi , Yoshio Suzuki

Micro-expressions are spontaneous, unconscious facial movements that show people's true inner emotions and have great potential in related fields of psychological testing. Since the face is a 3D deformation object, the occurrence of an…

Computer Vision and Pattern Recognition · Computer Science 2022-04-21 Fengping Wang , Jie Li , Siqi Zhang , Chun Qi , Yun Zhang , Danmin Miao

Since the history of display technologies began, people have dreamed an ultimate 3D display system. In order to get close to the dream, 3D displays should provide both of psychological and physiological cues for recognition of depth…

Graphics · Computer Science 2018-04-13 Seungjae Lee , Youngjin Jo , Dongheon Yoo , Jaebum Cho , Dukho Lee , Byoungho Lee