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

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Recently, surface electromyogram (EMG) has been proposed as a novel biometric trait for addressing some key limitations of current biometrics, such as spoofing and liveness. The EMG signals possess a unique characteristic: they are…

Cryptography and Security · Computer Science 2022-12-02 Ashirbad Pradhan , Jiayuan He , Ning Jiang

The objective of this work is to segment human body parts from egocentric video using semantic segmentation networks. Our contribution is two-fold: i) we create a semi-synthetic dataset composed of more than 15, 000 realistic images and…

Computer Vision and Pattern Recognition · Computer Science 2020-06-09 Andrija Gajic , Ester Gonzalez-Sosa , Diego Gonzalez-Morin , Marcos Escudero-Viñolo , Alvaro Villegas

We present an approach utilizing Topological Data Analysis to study the structure of face poses used in affective computing, i.e., the process of recognizing human emotion. The approach uses a conditional comparison of different emotions,…

Human-Computer Interaction · Computer Science 2021-08-04 Hamza Elhamdadi , Shaun Canavan , Paul Rosen

Cone Beam Computed Tomography (CBCT) and Panoramic X-rays are the most commonly used imaging modalities in dental health care. CBCT can produce three-dimensional views of a patient's head, providing clinicians with better diagnostic…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Anusree P. S. , Bikram Keshari Parida , Seong Yong Moon , Wonsang You

Machine learning techniques are being increasingly applied in medical and physical sciences across a variety of imaging modalities; however, an important issue when developing these tools is the availability of good quality training data.…

Learned 3D representations of human faces are useful for computer vision problems such as 3D face tracking and reconstruction from images, as well as graphics applications such as character generation and animation. Traditional models learn…

Computer Vision and Pattern Recognition · Computer Science 2018-08-02 Anurag Ranjan , Timo Bolkart , Soubhik Sanyal , Michael J. Black

We present an approach to generate high fidelity 3D face avatar with a high-resolution UV texture map from a single image. To estimate the face geometry, we use a deep neural network to directly predict vertex coordinates of the 3D face…

Computer Vision and Pattern Recognition · Computer Science 2019-12-10 Ruizhe Wang , Chih-Fan Chen , Hao Peng , Xudong Liu , Oliver Liu , Xin Li

We present a multi-aperture analyser set-up for performing X-ray phase contrast imaging in planar and three-dimensional modalities. A multi-slice representation of the sample is used to establish a quantitative relation between projection…

Instrumentation and Detectors · Physics 2017-06-21 M. Endrizzi , F. A. Vittoria , L. Rigon , D. Dreossi , A. Olivo

We present a Python toolbox for holographic and tomographic X-ray imaging. It comprises a collection of phase retrieval algorithms for the deeply holographic and direct contrast imaging regimes, including non-linear approaches and extended…

Optics · Physics 2025-11-03 Jens Lucht , Paul Meyer , Leon Merten Lohse , Tim Salditt

With the mushrooming use of computed tomography (CT) images in clinical decision making, management of CT data becomes increasingly difficult. From the patient identification perspective, using the standard DICOM tag to track patient…

Computer Vision and Pattern Recognition · Computer Science 2020-06-01 Jiuwen Zhu , Hu Han , S. Kevin Zhou

Emojis have become ubiquitous in online communication, serving as a universal medium to convey emotions and decorative elements. Their widespread use transcends language and cultural barriers, enhancing understanding and fostering more…

Computation and Language · Computer Science 2024-12-24 Rafid Ishrak Jahan , Heng Fan , Haihua Chen , Yunhe Feng

Ghost tomography using single-pixel detection extends the emerging field of ghost imaging to three dimensions, with the use of penetrating radiation. In this work, a series of spatially random x-ray intensity patterns is used to illuminate…

Instrumentation and Detectors · Physics 2019-06-25 Andrew. M. Kingston , Daniele Pelliccia , Alexander Rack , Margie P. Olbinado , Yin Cheng , Glenn R. Myers , David M. Paganin

Enabling digital humans to express rich emotions has significant applications in dialogue systems, gaming, and other interactive scenarios. While recent advances in talking head synthesis have achieved impressive results in lip…

Artificial Intelligence · Computer Science 2025-10-21 Haidong Xu , Meishan Zhang , Hao Ju , Zhedong Zheng , Erik Cambria , Min Zhang , Hao Fei

Face recognition is a widely accepted biometric verification tool, as the face contains a lot of information about the identity of a person. In this study, a 2-step neural-based pipeline is presented for matching 3D facial shape to multiple…

Computer Vision and Pattern Recognition · Computer Science 2020-10-19 Soha Sadat Mahdi , Nele Nauwelaers , Philip Joris , Giorgos Bouritsas , Shunwang Gong , Sergiy Bokhnyak , Susan Walsh , Mark D. Shriver , Michael Bronstein , Peter Claes , .

We describe a method aiming at increasing the dynamic range of X-ray detectors. Two X-ray exposures of an object are acquired at different dose levels and constitute the only input data. The values of the parameters which are needed to…

Medical Physics · Physics 2007-05-23 Evangelos Matsinos , Wolfgang Kaissl

Different people have different facial expressions while speaking emotionally. A realistic facial animation system should consider such identity-specific speaking styles and facial idiosyncrasies to achieve high-degree of naturalness and…

Artificial Intelligence · Computer Science 2023-10-27 Elif Bozkurt

We introduce EchoXFlow, a clinical echocardiography dataset for learning from ultrasound in its native acquisition geometry rather than from scan-converted Cartesian videos. Existing public datasets offer limited opportunities to study…

Computer Vision and Pattern Recognition · Computer Science 2026-05-08 Elias Stenhede , Joanna Sulkowska , Eivind Bjørkan Orstad , Henrik Schirmer , Arian Ranjbar

We report the first experimental test of an analytic image reconstruction algorithm for optical tomography with large data sets. Using a continuous-wave optical tomography system with 10^8 source-detector pairs, we demonstrate the…

Medical Physics · Physics 2007-05-23 Zheng-Min Wang , George Y. Panasyuk , Vadim A. Markel , John C. Schotland

Training computer-vision related algorithms on medical images for disease diagnosis or image segmentation is difficult due to the lack of training data, labeled samples, and privacy concerns. For this reason, a robust generative method to…

Image and Video Processing · Electrical Eng. & Systems 2021-11-04 Robert V Bergen , Jean-Francois Rajotte , Fereshteh Yousefirizi , Ivan S Klyuzhin , Arman Rahmim , Raymond T. Ng

The Codec Avatars Lab at Meta introduces Embody 3D, a multimodal dataset of 500 individual hours of 3D motion data from 439 participants collected in a multi-camera collection stage, amounting to over 54 million frames of tracked 3D motion.…

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