NDLI: On dynamic scene geometry for view-invariant action matching

Content Provider	IEEE Xplore Digital Library
Author	Anwaar-ul-Haq Gondal, I. Murshed, M.
Copyright Year	2011
Description	Author affiliation: GSIT, Monash University, VIC, Australia (Anwaar-ul-Haq; Gondal, I.; Murshed, M.)
Abstract	Variation in viewpoints poses significant challenges to action recognition. One popular way of encoding view-invariant action representation is based on the exploitation of epipolar geometry between different views of the same action. Majority of representative work considers detection of landmark points and their tracking by assuming that motion trajectories for all landmark points on human body are available throughout the course of an action. Unfortunately, due to occlusion and noise, detection and tracking of these landmarks is not always robust. To facilitate it, some of the work assumes that such trajectories are manually marked which is a clear drawback and lacks automation introduced by computer vision. In this paper, we address this problem by proposing view invariant action matching score based on epipolar geometry between actor silhouettes, without tracking and explicit point correspondences. In addition, we explore multi-body epipolar constraint which facilitates to work on original action volumes without any pre-processing. We show that multi-body fundamental matrix captures the geometry of dynamic action scenes and helps devising an action matching score across different views without any prior segmentation of actors. Extensive experimentation on challenging view invariant action datasets shows that our approach not only removes long standing assumptions but also achieves significant improvement in recognition accuracy and retrieval.
Starting Page	3305
Ending Page	3312
File Size	490431
Page Count	8
File Format	PDF
ISBN	9781457703942
ISSN	10636919
e-ISBN	9781457703959
DOI	10.1109/CVPR.2011.5995690
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Geometry Cameras Optical imaging Adaptive optics Trajectory Three dimensional displays Equations
Content Type	Text
Resource Type	Article
Subject	Computer Vision and Pattern Recognition Software

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

3DNN: Viewpoint Invariant 3D Geometry Matching for Scene Understanding

3D scene flow estimation with a rigid motion prior

Scene flow estimation by growing correspondence seeds

Aerial Implicit 3D Video Stabilization Using Epipolar Geometry Constraint

A FACS valid 3D dynamic action unit database with applications to 3D dynamic morphable facial modeling

Basis constrained 3D scene flow on a dynamic proxy

Action Recognition with Improved Trajectories

Layered RGBD scene flow estimation

Manhattan Scene Understanding via XSlit Imaging

On dynamic scene geometry for view-invariant action matching

Similar Documents

3DNN: Viewpoint Invariant 3D Geometry Matching for Scene Understanding

3D scene flow estimation with a rigid motion prior

Scene flow estimation by growing correspondence seeds

Aerial Implicit 3D Video Stabilization Using Epipolar Geometry Constraint

A FACS valid 3D dynamic action unit database with applications to 3D dynamic morphable facial modeling

Basis constrained 3D scene flow on a dynamic proxy

Action Recognition with Improved Trajectories

Layered RGBD scene flow estimation

Manhattan Scene Understanding via XSlit Imaging

On dynamic scene geometry for view-invariant action matching