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Paper in CVPR 2014 “Efficient Hierarchical Graph-Based Segmentation of RGBD Videos”

Sunday, June 22nd, 2014 Posted in Computer Vision, Henrik Christensen, Papers, Steven Hickson | No Comments »

[bibtex file=IrfanEssaWS.bib key=2014-Hickson-EHGSRV] Abstract We present an efficient and scalable algorithm for seg- menting 3D RGBD point clouds by combining depth, color, and temporal information using a multistage, hierarchical graph-based approach. Our ... Read more..

Paper in CVIU 2013 “A Visualization Framework for Team Sports Captured using Multiple Static Cameras”

Thursday, October 3rd, 2013 Posted in Activity Recognition, Computational Photography and Video, Jessica Hodgins, PAMI/ICCV/CVPR/ECCV, Papers, Raffay Hamid, Sports Visualization | No Comments »

[bibtex file=IrfanEssaWS.bib key=2013-Hamid-VFTSCUMSC] Abstract We present a novel approach for robust localization of multiple people observed using a set of static cameras. We use this location information to generate a visualization of ... Read more..

Paper in ACM Ubicomp 2013 “Technological approaches for addressing privacy concerns when recognizing eating behaviors with wearable cameras”

Saturday, September 14th, 2013 Posted in Activity Recognition, Computational Photography and Video, Edison Thomaz, Gregory Abowd, ISWC, Mobile Computing, Papers, Ubiquitous Computing | No Comments »

[bibtex file=IrfanEssaWS.bib key=2013-Thomaz-TAAPCWREBWWC]  Abstract First-person point-of-view (FPPOV) images taken by wearable cameras can be used to better understand people's eating habits. Human computation is a way to provide effective analysis of FPPOV ... Read more..

Paper in ACM KDD 2013 “Detecting insider threats in a real corporate database of computer usage activity”

Sunday, August 11th, 2013 Posted in AAAI/IJCAI/UAI, Josh Jones, Vinay Bettadapura | No Comments »

[bibtex file=IrfanEssaWS.bib key=2013-Senator-DITRCDCUA] Abstract This paper reports on methods and results of an applied research project by a team consisting of SAIC and four universities to develop, integrate, and evaluate new approaches ... Read more..

Paper in IEEE CVPR 2013 “Geometric Context from Videos”

Thursday, June 27th, 2013 Posted in Matthias Grundmann, PAMI/ICCV/CVPR/ECCV, Papers, S. Hussain Raza | No Comments »

[bibtex file=IrfanEssaWS.bib key=2013-Raza-GCFV] Abstract We present a novel algorithm for estimating the broad 3D geometric structure of outdoor video scenes. Leveraging spatio-temporal video segmentation, we decompose a dynamic scene captured by a ... Read more..

Paper in IEEE CVPR 2013 “Decoding Children’s Social Behavior”

Thursday, June 27th, 2013 Posted in Affective Computing, Behavioral Imaging, Denis Lantsman, Gregory Abowd, James Rehg, PAMI/ICCV/CVPR/ECCV, Papers, Thomas Ploetz | No Comments »

[bibtex file=IrfanEssaWS.bib key=2013-Rehg-DCSB] Abstract We introduce a new problem domain for activity recognition: the analysis of children's social and communicative behaviors based on video and audio data. We specifically target interactions between ... Read more..

Paper in IEEE CVPR 2013 “Augmenting Bag-of-Words: Data-Driven Discovery of Temporal and Structural Information for Activity Recognition”

Thursday, June 27th, 2013 Posted in Activity Recognition, Behavioral Imaging, Grant Schindler, PAMI/ICCV/CVPR/ECCV, Papers, Sports Visualization, Thomas Ploetz, Vinay Bettadapura | No Comments »

[bibtex file=IrfanEssaWS.bib key=2013-Bettadapura-ABDDTSIAR] Abstract We present data-driven techniques to augment Bag of Words (BoW) models, which allow for more robust modeling and recognition of complex long-term activities, especially when the structure and ... Read more..

Paper in AISTATS 2013 “Beyond Sentiment: The Manifold of Human Emotions”

Monday, April 29th, 2013 Posted in AAAI/IJCAI/UAI, Behavioral Imaging, Computational Journalism, Numerical Machine Learning, Papers, WWW | No Comments »

[bibtex file=IrfanEssaWS.bib key=2012-Kim-BSMHE] Abstract Sentiment analysis predicts the presence of positive or negative emotions in a text document. In this paper we consider higher dimensional extensions of the sentiment concept, which represent ... Read more..

Paper in ICCP 2013 “Post-processing approach for radiometric self-calibration of video”

Friday, April 19th, 2013 Posted in Computational Photography and Video, ICCP, Matthias Grundmann, Papers, Sing Bing Kang | No Comments »

[bibtex file=IrfanEssaWS.bib key=2013-Grundmann-PARSV] Abstract We present a novel data-driven technique for radiometric self-calibration of video from an unknown camera. Our approach self-calibrates radiometric variations in video, and is applied as a post-process; ... Read more..

Award (2012): Best Computer Vision Paper Award by Google Research

Thursday, March 22nd, 2012 Posted in Computational Photography and Video, Matthias Grundmann, Papers, Vivek Kwatra | No Comments »

Our following paper was just awarded the Excellent Paper for 2011 in Computer Vision by Google Research. [bibtex file=IrfanEssaWS.bib key=2011-Grundmann-AVSWROCP] Casually shot videos captured by handheld or mobile cameras suffer from significant ... Read more..