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Author |
Ivan Huerta; Ariel Amato; Jordi Gonzalez; Juan J. Villanueva |
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Title |
Fusing Edge Cues to Handle Colour Problems in Image Segmentation |
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Book Chapter |
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Year |
2008 |
Publication |
Articulated Motion and Deformable Objects, 5th International Conference |
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Volume |
5098 |
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279–288 |
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Port d'Andratx (Mallorca) |
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ISE |
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no |
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Call Number |
ISE @ ise @ HAG2008 |
Serial |
973 |
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Author |
Bhaskar Chakraborty; Marco Pedersoli; Jordi Gonzalez |
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Title |
View-Invariant Human Action Detection using Component-Wise HMM of Body Parts |
Type |
Book Chapter |
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Year |
2008 |
Publication |
Articulated Motion and Deformable Objects, 5th International Conference |
Abbreviated Journal |
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Volume |
5098 |
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Pages |
208–217 |
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Port d'Andratx (Mallorca) |
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ISE |
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no |
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Call Number |
ISE @ ise @ CPG2008 |
Serial |
975 |
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Author |
Wenjuan Gong; Andrew Bagdanov; Xavier Roca; Jordi Gonzalez |
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Title |
Automatic Key Pose Selection for 3D Human Action Recognition |
Type |
Conference Article |
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Year |
2010 |
Publication |
6th International Conference on Articulated Motion and Deformable Objects |
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Volume |
6169 |
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Pages |
290–299 |
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This article describes a novel approach to the modeling of human actions in 3D. The method we propose is based on a “bag of poses” model that represents human actions as histograms of key-pose occurrences over the course of a video sequence. Actions are first represented as 3D poses using a sequence of 36 direction cosines corresponding to the angles 12 joints form with the world coordinate frame in an articulated human body model. These pose representations are then projected to three-dimensional, action-specific principal eigenspaces which we refer to as aSpaces. We introduce a method for key-pose selection based on a local-motion energy optimization criterion and we show that this method is more stable and more resistant to noisy data than other key-poses selection criteria for action recognition. |
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Springer Verlag |
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0302-9743 |
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978-3-642-14060-0 |
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ISE |
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no |
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DAG @ dag @ GBR2010 |
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1317 |
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Author |
Albert Clapes; Miguel Reyes; Sergio Escalera |
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Title |
User Identification and Object Recognition in Clutter Scenes Based on RGB-Depth Analysis |
Type |
Conference Article |
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Year |
2012 |
Publication |
7th Conference on Articulated Motion and Deformable Objects |
Abbreviated Journal |
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Volume |
7378 |
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Pages |
1-11 |
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We propose an automatic system for user identification and object recognition based on multi-modal RGB-Depth data analysis. We model a RGBD environment learning a pixel-based background Gaussian distribution. Then, user and object candidate regions are detected and recognized online using robust statistical approaches over RGBD descriptions. Finally, the system saves the historic of user-object assignments, being specially useful for surveillance scenarios. The system has been evaluated on a novel data set containing different indoor/outdoor scenarios, objects, and users, showing accurate recognition and better performance than standard state-of-the-art approaches. |
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Address |
Mallorca |
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Publisher |
Springer Berlin Heidelberg |
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LNCS |
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0302-9743 |
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978-3-642-31566-4 |
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HUPBA;MILAB |
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no |
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Call Number |
Admin @ si @ CRE2012 |
Serial |
2010 |
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Author |
Wenjuan Gong; Jordi Gonzalez; Joao Manuel R. S. Taveres; Xavier Roca |
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Title |
A New Image Dataset on Human Interactions |
Type |
Conference Article |
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Year |
2012 |
Publication |
7th Conference on Articulated Motion and Deformable Objects |
Abbreviated Journal |
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Volume |
7378 |
Issue |
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Pages |
204-209 |
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Abstract |
This article describes a new collection of still image dataset which are dedicated to interactions between people. Human action recognition from still images have been a hot topic recently, but most of them are actions performed by a single person, like running, walking, riding bikes, phoning and so on and there is no interactions between people in one image. The dataset collected in this paper are concentrating on human interaction between two people aiming to explore this new topic in the research area of action recognition from still images. |
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Mallorca |
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Springer Berlin Heidelberg |
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0302-9743 |
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978-3-642-31566-4 |
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Notes |
ISE |
Approved |
no |
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Call Number |
Admin @ si @ GGT2012 |
Serial |
2030 |
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Permanent link to this record |
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Author |
Sergio Escalera |
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Title |
Human Behavior Analysis From Depth Maps |
Type |
Conference Article |
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Year |
2012 |
Publication |
7th Conference on Articulated Motion and Deformable Objects |
Abbreviated Journal |
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Volume |
7378 |
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Pages |
282-292 |
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Abstract |
Pose Recovery (PR) and Human Behavior Analysis (HBA) have been a main focus of interest from the beginnings of Computer Vision and Machine Learning. PR and HBA were originally addressed by the analysis of still images and image sequences. More recent strategies consisted of Motion Capture technology (MOCAP), based on the synchronization of multiple cameras in controlled environments; and the analysis of depth maps from Time-of-Flight (ToF) technology, based on range image recording from distance sensor measurements. Recently, with the appearance of the multi-modal RGBD information provided by the low cost Kinect \textsfTM sensor (from RGB and Depth, respectively), classical methods for PR and HBA have been redefined, and new strategies have been proposed. In this paper, the recent contributions and future trends of multi-modal RGBD data analysis for PR and HBA are reviewed and discussed. |
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Mallorca |
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Springer Heidelberg |
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Editor |
F.J. Perales; R.B. Fisher; T.B. Moeslund |
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ISSN |
0302-9743 |
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978-3-642-31566-4 |
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Conference ![sorted by Conference field, ascending order (up)](img/sort_asc.gif) |
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Notes |
MILAB; HuPBA |
Approved |
no |
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Call Number |
Admin @ si @ Esc2012 |
Serial |
2040 |
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Permanent link to this record |
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Author |
Oualid M. Benkarim; Petia Radeva; Laura Igual |
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Title |
Label Consistent Multiclass Discriminative Dictionary Learning for MRI Segmentation |
Type |
Conference Article |
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Year |
2014 |
Publication |
8th Conference on Articulated Motion and Deformable Objects |
Abbreviated Journal |
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Volume |
8563 |
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Pages |
138-147 |
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Keywords |
MRI segmentation; sparse representation; discriminative dic- tionary learning; multiclass classication |
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Abstract |
The automatic segmentation of multiple subcortical structures in brain Magnetic Resonance Images (MRI) still remains a challenging task. In this paper, we address this problem using sparse representation and discriminative dictionary learning, which have shown promising results in compression, image denoising and recently in MRI segmentation. Particularly, we use multiclass dictionaries learned from a set of brain atlases to simultaneously segment multiple subcortical structures.
We also impose dictionary atoms to be specialized in one given class using label consistent K-SVD, which can alleviate the bias produced by unbalanced libraries, present when dealing with small structures. The proposed method is compared with other state of the art approaches for the segmentation of the Basal Ganglia of 35 subjects of a public dataset.
The promising results of the segmentation method show the eciency of the multiclass discriminative dictionary learning algorithms in MRI segmentation problems. |
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Address |
Palma de Mallorca; July 2014 |
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Springer International Publishing |
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LNCS |
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0302-9743 |
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978-3-319-08848-8 |
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Notes |
MILAB; OR |
Approved |
no |
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Call Number |
Admin @ si @ BRI2014 |
Serial |
2494 |
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Author |
Marc Bolaños; Maite Garolera; Petia Radeva |
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Title |
Video Segmentation of Life-Logging Videos |
Type |
Conference Article |
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Year |
2014 |
Publication |
8th Conference on Articulated Motion and Deformable Objects |
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8563 |
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1-9 |
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MILAB |
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no |
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Admin @ si @ BGR2014 |
Serial |
2558 |
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Permanent link to this record |
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Author |
Pejman Rasti; Tonis Uiboupin; Sergio Escalera; Gholamreza Anbarjafari |
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Title |
Convolutional Neural Network Super Resolution for Face Recognition in Surveillance Monitoring |
Type |
Conference Article |
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Year |
2016 |
Publication |
9th Conference on Articulated Motion and Deformable Objects |
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Palma de Mallorca; Spain; July 2016 |
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Notes |
HuPBA;MILAB |
Approved |
no |
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Call Number |
Admin @ si @ RUE2016 |
Serial |
2846 |
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Permanent link to this record |
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Author |
Dennis H. Lundtoft; Kamal Nasrollahi; Thomas B. Moeslund; Sergio Escalera |
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Title |
Spatiotemporal Facial Super-Pixels for Pain Detection |
Type |
Conference Article |
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Year |
2016 |
Publication |
9th Conference on Articulated Motion and Deformable Objects |
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Keywords |
Facial images; Super-pixels; Spatiotemporal filters; Pain detection |
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Abstract |
Best student paper award.
Pain detection using facial images is of critical importance in many Health applications. Since pain is a spatiotemporal process, recent works on this topic employ facial spatiotemporal features to detect pain. These systems extract such features from the entire area of the face. In this paper, we show that by employing super-pixels we can divide the face into three regions, in a way that only one of these regions (about one third of the face) contributes to the pain estimation and the other two regions can be discarded. The experimental results on the UNBCMcMaster database show that the proposed system using this single region outperforms state-of-the-art systems in detecting no-pain scenarios, while it reaches comparable results in detecting weak and severe pain scenarios. |
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Palma de Mallorca; Spain; July 2016 |
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HUPBA;MILAB |
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no |
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Call Number |
Admin @ si @ LNM2016 |
Serial |
2847 |
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Author |
Mark Philip Philipsen; Anders Jorgensen; Thomas B. Moeslund; Sergio Escalera |
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Title |
RGB-D Segmentation of Poultry Entrails |
Type |
Conference Article |
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Year |
2016 |
Publication |
9th Conference on Articulated Motion and Deformable Objects |
Abbreviated Journal |
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Abstract |
Best commercial paper award. |
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Notes |
HuPBA;MILAB |
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no |
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Call Number |
Admin @ si @ PJM2016 |
Serial |
2848 |
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Permanent link to this record |
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Author |
Antonio Hernandez; Miguel Reyes; Sergio Escalera; Petia Radeva |
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Title |
Spatio-Temporal GrabCut human segmentation for face and pose recovery |
Type |
Conference Article |
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Year |
2010 |
Publication |
IEEE International Workshop on Analysis and Modeling of Faces and Gestures |
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33–40 |
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In this paper, we present a full-automatic Spatio-Temporal GrabCut human segmentation methodology. GrabCut initialization is performed by a HOG-based subject detection, face detection, and skin color model for seed initialization. Spatial information is included by means of Mean Shift clustering whereas temporal coherence is considered by the historical of Gaussian Mixture Models. Moreover, human segmentation is combined with Shape and Active Appearance Models to perform full face and pose recovery. Results over public data sets as well as proper human action base show a robust segmentation and recovery of both face and pose using the presented methodology. |
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San Francisco; CA; USA; June 2010 |
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2160-7508 |
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978-1-4244-7029-7 |
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MILAB;HUPBA |
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no |
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BCNPCL @ bcnpcl @ HRE2010 |
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1362 |
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Author |
Bogdan Raducanu; Fadi Dornaika |
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Title |
Dynamic Vs. Static Recognition of Facial Expressions |
Type |
Book Chapter |
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Year |
2008 |
Publication |
Ambient Intelligence. European Conference |
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Volume |
5355 |
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13–25 |
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Nuremberg (Germany) |
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Rabuñal |
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AMI |
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Notes |
OR; MV |
Approved |
no |
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BCNPCL @ bcnpcl @ RaD2008 |
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1035 |
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Permanent link to this record |
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Author |
Eduardo Tusa; Arash Akbarinia; Raquel Gil Rodriguez; Corina Barbalata |
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Title |
Real-Time Face Detection and Tracking Utilising OpenMP and ROS |
Type |
Conference Article |
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Year |
2015 |
Publication |
3rd Asia-Pacific Conference on Computer Aided System Engineering |
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179 - 184 |
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RGB-D; Kinect; Human Detection and Tracking; ROS; OpenMP |
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Abstract |
The first requisite of a robot to succeed in social interactions is accurate human localisation, i.e. subject detection and tracking. Later, it is estimated whether an interaction partner seeks attention, for example by interpreting the position and orientation of the body. In computer vision, these cues usually are obtained in colour images, whose qualities are degraded in ill illuminated social scenes. In these scenarios depth sensors offer a richer representation. Therefore, it is important to combine colour and depth information. The
second aspect that plays a fundamental role in the acceptance of social robots is their real-time-ability. Processing colour and depth images is computationally demanding. To overcome this we propose a parallelisation strategy of face detection and tracking based on two different architectures: message passing and shared memory. Our results demonstrate high accuracy in
low computational time, processing nine times more number of frames in a parallel implementation. This provides a real-time social robot interaction. |
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Quito; Ecuador; July 2015 |
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Author |
Jürgen Brauer; Wenjuan Gong; Jordi Gonzalez; Michael Arens |
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Title |
On the Effect of Temporal Information on Monocular 3D Human Pose Estimation |
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Conference Article |
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2011 |
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2nd IEEE International Workshop on Analysis and Retrieval of Tracked Events and Motion in Imagery Streams |
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906 - 913 |
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We address the task of estimating 3D human poses from monocular camera sequences. Many works make use of multiple consecutive frames for the estimation of a 3D pose in a frame. Although such an approach should ease the pose estimation task substantially since multiple consecutive frames allow to solve for 2D projection ambiguities in principle, it has not yet been investigated systematically how much we can improve the 3D pose estimates when using multiple consecutive frames opposed to single frame information. In this paper we analyze the difference in quality of 3D pose estimates based on different numbers of consecutive frames from which 2D pose estimates are available. We validate the use of temporal information on two major different approaches for human pose estimation – modeling and learning approaches. The results of our experiments show that both learning and modeling approaches benefit from using multiple frames opposed to single frame input but that the benefit is small when the 2D pose estimates show a high quality in terms of precision. |
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Barcelona |
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978-1-4673-0062-9 |
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Admin @ si @BGG 2011 |
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1860 |
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