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Ear-to-ear Capture of Facial Intrinsics [article]

Alassane Seck, William A. P. Smith, Arnaud Dessein, Bernard Tiddeman, Hannah Dee, Abhishek Dutta
2016 arXiv   pre-print
We present a practical approach to capturing ear-to-ear face models comprising both 3D meshes and intrinsic textures (i.e. diffuse and specular albedo).  ...  We overcome the problem of having a single photometric viewpoint by capturing in multiple poses.  ...  ACKNOWLEDGMENTS We are grateful to Hadi Dahlan for assistance with data collection and to Fufu Fang for assistance with lightstage calibration and programming.  ... 
arXiv:1609.02368v1 fatcat:ir7aynfoybamjpmsfpszheux6m

Automatic Detection of Fiducial Landmarks Toward the Development of an Application for Digitizing the Locations of EEG Electrodes: Occipital Structure Sensor-Based Work

Elieser E. Gallego Martínez, Anisleidy González Mitjans, Eduardo Garea-Llano, Maria L. Bringas-Vega, Pedro A. Valdes-Sosa
2021 Frontiers in Neuroscience  
Capturing the 3D model of the head is done with Occipital Inc.  ...  Our proposal combines a dimensional reduction approach with a perspective projection from 3D to 2D object space; the eye and ear automatic detection in a 2D face image by two cascades of classifiers and  ...  The work was carried out in cooperation between the Clinical Hospital of Chengdu Brain Sciences, affiliated to the University of Electronic Sciences and Technology of China UESTC, Chengdu, the University  ... 
doi:10.3389/fnins.2021.526257 pmid:33994912 pmcid:PMC8117222 fatcat:f7amzhirubgl5htjnhmwqxb2oe

Nose, eyes and ears: Head pose estimation by locating facial keypoints [article]

Aryaman Gupta, Kalpit Thakkar, Vineet Gandhi, P J Narayanan
2018 arXiv   pre-print
More specifically, we use the uncertainty maps in the form of 2D soft localization heatmap images over five facial keypoints, namely left ear, right ear, left eye, right eye and nose, and pass them through  ...  Monocular head pose estimation requires learning a model that computes the intrinsic Euler angles for pose (yaw, pitch, roll) from an input image of human face.  ...  , eyes and ears.  ... 
arXiv:1812.00739v1 fatcat:bwzbpjna6bbqpgb3n7y2kvpqja

High Accuracy Face Geometry Capture using a Smartphone Video [article]

Shubham Agrawal, Anuj Pahuja, Simon Lucey
2020 arXiv   pre-print
By not being constrained to a model subspace, our reconstructed meshes capture important details while being robust to noise and being topologically consistent.  ...  What's the most accurate 3D model of your face you can obtain while sitting at your desk? We attempt to answer this question in our work.  ...  Ears and the side facial regions have mostly been ignored in previous works.  ... 
arXiv:2003.08583v1 fatcat:ttr5s3o77rgwdi24un6ubux42u

Automatic detection of fiducials landmarks toward development of an application for EEG electrodes location (digitization): Occipital structured sensor based-work [article]

E. E. Gallego Martínez, A. González-Mitjans, M. L. Bringas-Vega, P. A. Valdés-Sosa
2019 arXiv   pre-print
We offer a wide description of the proposed algorithm to explore the three-dimensional object to features detection, by means of: dimensional reduction with perspective projection from 3D to 2D, object  ...  detection with custom detectors, robotic control of mouse motion and clicks events and reprojection from 2D to 3D to get spatial coordinates.  ...  Once we have captured the click event, next step is to find programmatically the (x,y,z) point selected over the surface.  ... 
arXiv:1912.07221v1 fatcat:cyusyvhjojbcla6iuaxbpjz3uu

Geometric morphometrics for the study of facial expressions in non-human animals, using the domestic cat as an exemplar

Lauren R. Finka, Stelio P. Luna, Juliana T. Brondani, Yorgos Tzimiropoulos, John McDonagh, Mark J. Farnworth, Marcello Ruta, Daniel S. Mills
2019 Scientific Reports  
Facial images were captured at four different time points during ovariohysterectomy of domestic short haired cats (n = 29), with time points corresponding to varying intensities of pain.  ...  Landmark data were subjected to normalisation before Principal Components (PCs) were extracted to identify key sources of facial shape variation, relative to pain intensity.  ...  We are also grateful to Feline Friends (Derbyshire) for both initiating the project and providing financial support for it. We would like to thank Dr.  ... 
doi:10.1038/s41598-019-46330-5 pmid:31285531 pmcid:PMC6614427 fatcat:wwvagd64uvf4vg4csdeooyj7xe

A Morphable Face Albedo Model

William A. P. Smith, Alassane Seck, Hannah Dee, Bernard Tiddeman, Joshua B. Tenenbaum, Bernhard Egger
2020 2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)  
We propose a novel lightstage capture and processing pipeline for acquiring ear-to-ear, truly intrinsic diffuse and specular albedo maps that fully factor out the effects of illumination, camera and geometry  ...  This allows us to build the first morphable face albedo model. We believe this is the first statistical analysis of the variability of facial specular albedo maps.  ...  not permit capturing full ear-to-ear face models.  ... 
doi:10.1109/cvpr42600.2020.00506 dblp:conf/cvpr/SmithSDTTE20 fatcat:fkkox5rfkne3zlxagdtdyzd4w4

Towards a complete 3D morphable model of the human head [article]

Stylianos Ploumpis, Evangelos Ververas, Eimear O' Sullivan, Stylianos Moschoglou, Haoyang Wang, Nick Pears, William A. P. Smith, Baris Gecer, Stefanos Zafeiriou
2020 arXiv   pre-print
Then we construct and fuse a highly-detailed ear model to extend the variation of the ear shape.  ...  Here we present the most complete 3DMM of the human head to date that includes face, cranium, ears, eyes, teeth and tongue.  ...  The resulting universal head model captures all the desirable properties of the constituent 3DMMs; namely, the high facial detail of the facial model, the full cranial shape variations of the head model  ... 
arXiv:1911.08008v2 fatcat:ua6w5qivbvevbcvmvdzqvvi2ta

Classification of Human Ear by Extracting Hog Features and Support Vector Machine

Naveena M., G. Hemantha
2020 International Journal of Computer Applications  
There will be a great research on the HOG, it is purely gradient based and captured the object shape information; it can be used to extract the global feature.  ...  Gabor filter can represents the frequency and orientation of similar to those of the human visual System, and they have been found to be particularly appropriate for texture representation and as well  ...  The major landmarks of the external ear are depicted in Figure 1 . The external ear consists of skin, cartilage, and six intrinsic muscles.  ... 
doi:10.5120/ijca2020919902 fatcat:lkp3nwap3ncqvaip2ro67b3ssi

Position Determines Perspective: Investigating Perspective Distortion for Image Forensics of Faces

Bo Peng, Wei Wang, Jing Dong, Tieniu Tan
2017 2017 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW)  
To investigate this consistency problem, we cast it to the consistency between the claimed camera intrinsic parameters and the estimated ones from the CPD.  ...  Our parameter estimation approach is based on geometric observations that are related to CPD, like facial landmarks and contours.  ...  the width between two ears, and the depth between nose and ears, are constant measures for a given neutral face, the ratio between the image widths of nose and ears is only related to the inverse of the  ... 
doi:10.1109/cvprw.2017.227 dblp:conf/cvpr/PengWDT17 fatcat:rdcxzo4mvngrdhpneidllqylda

Automatic 3D ear reconstruction based on binocular stereo vision

Hui Zeng, Zhi-Chun Mu, Kai Wang, Chao Sun
2009 2009 IEEE International Conference on Systems, Man and Cybernetics  
We use SIFT feature based matching approach and the coarse to fine strategy to compute the seed matches.  ...  It can get sufficient 3D ear points with lower cost and higher efficiency.  ...  In order to improve the accuracy of the 3D ear models, the camera intrinsic parameters and the relative position relationship of the two cameras are fixed in the process of the collection of the ear image  ... 
doi:10.1109/icsmc.2009.5345989 dblp:conf/smc/ZengMWS09 fatcat:ghf7tananzbulkddv3e2ppfi3u

A Morphable Face Albedo Model [article]

William A.P. Smith, Alassane Seck, Hannah Dee, Bernard Tiddeman, Joshua Tenenbaum, Bernhard Egger
2020 arXiv   pre-print
We propose a novel lightstage capture and processing pipeline for acquiring ear-to-ear, truly intrinsic diffuse and specular albedo maps that fully factor out the effects of illumination, camera and geometry  ...  This allows us to build the first morphable face albedo model. We believe this is the first statistical analysis of the variability of facial specular albedo maps.  ...  Smith is supported by a Royal Academy of Engineering/The Leverhulme Trust Senior Research Fellowship. B. Egger and J.  ... 
arXiv:2004.02711v2 fatcat:bxeaepoe4rdlrezmo3cd3owf6a

Liveness Detection Based on Human eye Blinking for Photo Attacks

2019 International Journal of Engineering and Advanced Technology  
This rage of face verification has brought intensive interest about facial biometric towards attacks of spoofing, in which a person's mask or photo can be produced to be authorized.  ...  A scalar quantity EAR (eye aspect ratio) is derived from landmark positions defined by the algorithm to identify a blink corresponding to every frame.  ...  As the average time of exposure is assumed as 0.03 seconds, so capturing of a person with blinking is done by 7.5% [9, 10] . . eye lid indexes are restrained by utilizing the progressive facial landmark  ... 
doi:10.35940/ijeat.a1314.109119 fatcat:r2wpisaagbf7blcdy4skindrjy

In-ear Biosignal Recording System

Anh Nguyen, Raghda Alqurashi, Zohreh Raghebi, Farnoush Banaei-kashani, Ann C. Halbower, Thang Dinh, Tam Vu
2016 Proceedings of the 2016 Workshop on Wearable Systems and Applications - WearSys '16  
To illustrate the usefulness of the system, we developed an autonomous sleep staging system using the output of our proposed in-ear sensing system.  ...  With 94% accuracy on average, the evaluation results show that our wearable sensing system is promising to monitor brain, eyes, and facial muscle signals with reasonable fidelity from human ear canals.  ...  Figure 7a shows that our in-ear device can clearly capture specific facial muscle contractions, which are grinding and chewing, compared to the gold standard device at its EMG channel.  ... 
doi:10.1145/2935643.2935649 dblp:conf/mobisys/NguyenARKHDV16 fatcat:bfc2q2vfsjgrdf7ansczz43om4

Segmentation algorithms for ear image data towards biomechanical studies

Ana Ferreira, Fernanda Gentil, João Manuel R. S. Tavares
2012 Computer Methods in Biomechanics and Biomedical Engineering  
The outer ear captures the sound waves, which travel through the external auditory canal until they reach the eardrum. This causes the membrane and the attached chain of auditory ossicles to vibrate.  ...  Computational models can be used to simulate the anatomic structure of the ear in order to, not only help radiological diagnosis, surgical planning and teaching, but also to better understand the relationship  ...  Acknowledgments This work was partially done in the scope of the projects "Methodologies to Analyze Organs from Complex Medical Images -Applications to Female Pelvic Cavity" and "Biocomputational study  ... 
doi:10.1080/10255842.2012.723700 pmid:22994296 fatcat:tqidiwytr5emlbi54w5ljyxg3u
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