Results 231 to 240 of about 1,648,298 (270)

Benchmarking Head Pose Estimation in-the-Wild

2018
Head pose estimation systems have quickly evolved from simple classifiers estimating a few yaw angles, to the most recent regression approaches that provide precise 3D face orientations in images acquired “in-the-wild”. Accurate evaluation of these algorithms is an open issue.
Elvira Amador, Roberto Valle, José Miguel Buenaposada, Luis Baumela   +3 more
openaire   +1 more source

Single view head pose estimation

2008 15th IEEE International Conference on Image Processing, 2008
This work addresses the problem of human head pose estimation from single view images. 3D rigid head pose is estimated combining Active Appearance Models(AAM) with Pose from Orthography and Scaling with ITerations(POSIT). AAM shape landmarks are tracked over time and used in POSIT for pose estimation.
Pedro Martins 0004, Jorge P. Batista
openaire   +2 more sources

Head Pose Estimation by Instance Parameterization

2014 22nd International Conference on Pattern Recognition, 2014
Head pose estimation from images is a challenging task with extensive applications. It has been attracting research attentions over decades and numerous approaches have been proposed. Among them, manifold embedding based methods, which assume that the pose variations lie on a low-dimensional manifold embedded in the high-dimensional feature space, have
Xi Peng 0005, Junzhou Huang, Qiong Hu 0001, Shaoting Zhang 0001, Dimitris N. Metaxas   +4 more
openaire   +1 more source

Estimating heading during eye movements

Vision Research, 1994
In eight experiments, we examined the ability to judge heading during tracking eye movements. To assess the use of retinal-image and extra-retinal information in this task, we compared heading judgments with executed as opposed to simulated eye movements. In general, judgments were much more accurate during executed eye movements.
C S, Royden, J A, Crowell, M S, Banks
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A new representation method of head images for head pose estimation

2009 16th IEEE International Conference on Image Processing (ICIP), 2009
In this paper, a discriminative representation method of head images is proposed, which is based on parts and poses for identity-independent head pose estimation. Head images are preprocessed to enhance the facial features and eliminate the identity information by skin color model and Laplacian of Gaussian transform.
Xiangyang Liu, Hongtao Lu, Heng Luo
openaire   +2 more sources

Head Detection by the Adaboost Algorithm for Head Pose Estimation

Applied Mechanics and Materials, 2013
For human head pose analysis based on videos, pose is usually estimated on the head patch provided by a tracking module. However, head tracking is very sensitive to the large changes of pose. Therefore, this work locates the head patch in the videos by head detection.
Xiang Yang Liu, Shao Song Zhu, Su Qing Wu, Zhi Wei Shen   +3 more
openaire   +1 more source

Head Pose Estimation in Computer Vision: A Survey

IEEE Transactions on Pattern Analysis and Machine Intelligence, 2009
The capacity to estimate the head pose of another person is a common human ability that presents a unique challenge for computer vision systems. Compared to face detection and recognition, which have been the primary foci of face-related vision research, identity-invariant head pose estimation has fewer rigorously evaluated systems or generic solutions.
Erik Murphy-Chutorian, Mohan M. Trivedi
openaire   +2 more sources

Robust Heading Estimation in Mobile Phones

2019
Nowadays, mobile phones are used more and more for purposes that have nothing to do with phone calls or simple data transfers. One example is indoor inertial navigation. Within this task, a central problem is to obtain a good estimation of the user heading, robust to magnetic interference and changes in the position of the mobile device with respect to
Fernando E. Casado, Adrián Nieto, Roberto Iglesias, Carlos Vázquez Regueiro, Senén Barro   +4 more
openaire   +1 more source

Array heads for estimating track misregistration

IEEE Transactions on Magnetics, 1993
The authors examine the use of array heads for estimating the data and for providing servo information. A mathematical representation for array heads is developed, and a formula for the maximum likelihood estimate of the track misregistration is found.
L.C. Barbosa, C.E. MacDonald, J.K. Wolf
openaire   +1 more source

Head Pose Estimation by a Stepwise Nonlinear Regression

2009
Head pose estimation is a crucial step for numerous face applications such as gaze tracking and face recognition. In this paper, we introduce a new method to learn the mapping between a set of features and the corresponding head pose. It combines a filter based feature selection and a Generalized Regression Neural Network where inputs are sequentially ...
Bailly, Kevin, Milgram, Maurice, Phothisane, Philippe   +2 more
openaire   +3 more sources