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Displaying 1-22 out of 22 total
Which Thousand Words are Worth a Picture? Experiments on Video Retrieval using a Thousand Concepts
Found in: Multimedia and Expo, IEEE International Conference on
By Wei-hao Lin, Alexander Hauptmann
Issue Date:July 2006
pp. 41-44
In contrast to traditional video retrieval that represents visual content with low-level features (e.g. color and texture), emerging concept-based video retrieval allows users to search video archives by specifying a limited number of high-level concepts (...
Large-Scale Multimedia Data Collections
Found in: IEEE MultiMedia
By Benoit Huet,Tat-Seng Chua,Alexander Hauptmann
Issue Date:July 2012
pp. 12-14
The widespread adoption of smartphones equipped with high-quality image-capturing capabilities coupled with the prevalent use of social networks have resulted in an explosive growth of social media content. People now routinely capture the scenes around th...
Multi-camera Monitoring of Infusion Pump Use
Found in: International Conference on Semantic Computing
By Zan Gao, Ming-yu Chen, Marcin Detyniecki, Wen Wu, Alexander Hauptmann, Howard Wactlar, Anni Cai
Issue Date:September 2010
pp. 105-111
When patients operate a home infusion pump, they maybe make some mistakes, and it will be dangerous. To detect potentially life threatening errors, we design an assistance system based on observation by multiple cameras and robust spatio-temporal algorithm...
Joint-AL: Joint Discriminative and Generative Active Learning for Cross-Domain Semantic Concept Classification
Found in: International Conference on Semantic Computing
By Huan Li, Yuan Shi, Mingyu Chen, Alexander Hauptmann, Zhang Xiong
Issue Date:September 2010
pp. 60-66
As multimedia data come from a wide variety of domains, each having its distinctive data distributions, cross-domain video semantic concept classification becomes an important task in semantic computing. Its challenge arises from the different distribution...
Do These News Videos Portray a News Event from Different Ideological Perspectives?
Found in: International Conference on Semantic Computing
By Wei-Hao Lin, Alexander Hauptmann
Issue Date:August 2008
pp. 112-119
Television news has been the predominant way of understanding the??world around us, but individual news broadcasters can frame or??mislead audience's understanding about political and social issues.??We aim to develop a computer system that can automatical...
Large-Scale Concept Ontology for Multimedia
Found in: IEEE Multimedia
By Milind Naphade, John R. Smith, Jelena Tesic, Shih-Fu Chang, Winston Hsu, Lyndon Kennedy, Alexander Hauptmann, Jon Curtis
Issue Date:July 2006
pp. 86-91
As increasingly powerful techniques emerge for machine tagging multimedia content, it becomes ever more important to standardize the underlying vocabularies. Doing so provides interoperability and lets the multimedia community focus ongoing research on a w...
Mining Relationship Between Video Concepts using Probabilistic Graphical Models
Found in: Multimedia and Expo, IEEE International Conference on
By Rong Yan, Ming-yu Chen, Alexander Hauptmann
Issue Date:July 2006
pp. 301-304
For large scale automatic semantic video characterization, it is necessary to learn and model a large number of semantic concepts. These semantic concepts do not exist in isolation to each other and exploiting this relationship between multiple video conce...
Label Disambiguation and Sequence Modeling for Identifying Human Activities from Wearable Physiological Sensors
Found in: Multimedia and Expo, IEEE International Conference on
By Wei-hao Lin, Alexander Hauptmann
Issue Date:July 2006
pp. 1997-2000
Wearable physiological sensors can provide a faithful record of a patient's physiological states without constant attention of caregivers. A computer program that can infer human activities from physiological recordings will be an valuable tool for physici...
A Discriminative Learning Framework with Pairwise Constraints for Video Object Classification
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Rong Yan, Jian Zhang, Jie Yang, Alexander Hauptmann
Issue Date:July 2004
pp. 284-291
In video object classification, insufficient labeled data may at times be easily augmented with pairwise constraints on sample points, i.e, whether they are in the same class or not. In this paper, we proposed a discriminative learning approach which incor...
Multi-modal Classification in Digital News Libraries
Found in: Digital Libraries, Joint Conference on
By Ming-yu Chen, Alexander Hauptmann
Issue Date:June 2004
pp. 212-213
This paper describes a comprehensive approach to construct robust multi-modal video classification on a specific digital source, broadcast news. Broadcast news has a very stable structure and every segment has its specific purpose. Video classification can...
Web Image Retrieval Re-Ranking with Relevance Model
Found in: Web Intelligence, IEEE / WIC / ACM International Conference on
By Wei-Hao Lin, Rong Jin, Alexander Hauptmann
Issue Date:October 2003
pp. 242
Web image retrieval is a challenging task that requires efforts from image processing, link structure analysis, and web text retrieval. Since content-based image retrieval is still considered very difficult, most current large-scale web image search engine...
A Probabilistic Model for Camera Zoom Detection
Found in: Pattern Recognition, International Conference on
By Rong Jin, Yanjun Qi, Alexander Hauptmann
Issue Date:August 2002
pp. 30859
Camera motion detection is essential for automated video analysis. We propose a new probabilistic model for detecting zoom-in/zoom-out operations. The model uses EM to estimate the probability of a zoom versus a non-zoom operation from standard MPEG motion...
Space-Time Robust Representation for Action Recognition
Found in: 2013 IEEE International Conference on Computer Vision (ICCV)
By Nicolas Ballas,Yi Yang,Zhen-Zhong Lan,Bertrand Delezoide,Francoise Preteux,Alexander Hauptmann
Issue Date:December 2013
pp. 2704-2711
We address the problem of action recognition in unconstrained videos. We propose a novel content driven pooling that leverages space-time context while being robust toward global space-time transformations. Being robust to such transformations is of primar...
Harry Potter's Marauder's Map: Localizing and Tracking Multiple Persons-of-Interest by Nonnegative Discretization
Found in: 2013 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
By Shoou-I Yu,Yi Yang,Alexander Hauptmann
Issue Date:June 2013
pp. 3714-3720
A device just like Harry Potter's Marauder's Map, which pinpoints the location of each person-of-interest at all times, provides invaluable information for analysis of surveillance videos. To make this device real, a system would be required to perform rob...
ACM MM MIIRH 2013: workshop on multimedia indexing and information retrieval for healthcare
Found in: Proceedings of the 21st ACM international conference on Multimedia (MM '13)
By Jenny Benois-Pineau, Alexander Hauptmann, Alexia Briassouli
Issue Date:October 2013
pp. 1103-1104
Healthcare systems are depending on increasingly sophisticated and ubiquitous technology, while telehealth is rapidly gaining importance with the advent of low-cost and effective technological solutions in medicine. The increase in the worldwide elderly po...
ACM international workshop on very-large-scale multimedia corpus, mining and retrieval (VLS-MCMR'10)
Found in: Proceedings of the international conference on Multimedia (MM '10)
By Alexander Hauptmann, Benoit Huet, Tat-Seng Chua
Issue Date:October 2010
pp. 1769-1770
The purpose of this workshop is to bring together researchers interested in the construction and analysis of Very Large Scale Multimedia Corpus, as well as the methodologies to Mine and Retrieve information from them. The Workshop will provide a forum to c...
Controlling your TV with gestures
Found in: Proceedings of the international conference on Multimedia information retrieval (MIR '10)
By Alexander Hauptmann, Lily Mummert, Ming-yu Chen, Padmanabhan Pillai, Rahul Sukthankar
Issue Date:March 2010
pp. 405-408
Vision-based user interfaces enable natural interaction modalities such as gestures. Such interfaces require computationally intensive video processing at low latency. We demonstrate an application that recognizes gestures to control TV operations. Accurat...
Exploiting multi-level parallelism for low-latency activity recognition in streaming video
Found in: Proceedings of the first annual ACM SIGMM conference on Multimedia systems (MMSys '10)
By Alexander Hauptmann, Lily Mummert, Ming-yu Chen, Padmanabhan Pillai, Rahul Sukthankar
Issue Date:February 2010
pp. 1-12
Video understanding is a computationally challenging task that is critical not only for traditionally throughput-oriented applications such as search but also latency-sensitive interactive applications such as surveillance, gaming, videoconferencing, and v...
How many high-level concepts will fill the semantic gap in news video retrieval?
Found in: Proceedings of the 6th ACM international conference on Image and video retrieval (CIVR '07)
By Alexander Hauptmann, Rong Yan, Wei-Hao Lin
Issue Date:July 2007
pp. 627-634
A number of researchers have been building high-level semantic concept detectors such as outdoors, face, building, etc., to help with semantic video retrieval. Using the TRECVID video collection and LSCOM truth annotations from 300 concepts, we simulate pe...
Automatic collection, analysis, access, and archiving of individual and group psycho-social behavior
Found in: Proceedings of the 3rd ACM workshop on Continuous archival and retrival of personal experences (CARPE '06)
By Alexander Hauptmann, Ashok Bharucha, Datong Chen, Howard Wactlar, Michael Christel, Scott Stevens
Issue Date:October 2006
pp. 27-34
CareMedia is a collaborative effort that to date has captured more than 13,000 hours of video and audio recordings of life in the shared spaces of a nursing home dementia unit, by using 23 ceiling-mounted cameras, 24 hours a day for 25 days, ensuring an un...
Putting active learning into multimedia applications: dynamic definition and refinement of concept classifiers
Found in: Proceedings of the 13th annual ACM international conference on Multimedia (MULTIMEDIA '05)
By Alexander Hauptmann, Howard Wactlar, Michael Christel, Ming-yu Chen
Issue Date:November 2005
pp. 902-911
The authors developed an extensible system for video exploitation that puts the user in control to better accommodate novel situations and source material. Visually dense displays of thumbnail imagery in storyboard views are used for shot-based video explo...
News video classification using SVM-based multimodal classifiers and combination strategies
Found in: Proceedings of the tenth ACM international conference on Multimedia (MULTIMEDIA '02)
By Alexander Hauptmann, Wei-Hao Lin
Issue Date:December 2002
pp. 323-326
Video classification is the first step toward multimedia content understanding. When video is classified into conceptual categories, it is usually desirable to combine evidence from multiple modalities. However, combination strategies in previous studies w...