Wongun Choi (최원건)

VP of Vision Technologies, Ph.D.

Aibee, Inc.

Email: wgchoi at aibee dot com

Brief Bio

I am a Vice President of Vision Technologies at Aibee, Palo Alto CA. Previously, I was an algorithm scientist at Aibee and also taking the lead to build a new R/D team at Boston, US. Before joining Aibee, I was a perception tech lead at ISEE, inc and a senior researcher at NEC Laboratories. I received my Ph.D degree at the Dept. of Electrical and Computer Engineering, University of Michigan, Ann Arbor under the supervision of Prof. Silvio Savarese. My research interests include Machine Learning and Computer Vision with particular interests in scene/behavior understanding, object detection in videos and multiple target tracking. I got my B.S degree in Electrical Engineering at Seoul National University before I moved to Ann Arbor.

[outdated CV] [Google Scholar]

News

  •   I am appointed as a Vice President of Vision Technologies at Aibee. I'll be leading the computer vision research and technology developments for Aibee. (updated on 05/03/2020)
  •   I joined Aibee, Inc. as an algorithm scientist. (updated on 08/15/2018)
  •   One papers is accepted to NIPS 2017. (updated on 10/12/2017)
  •   Two papers are accepted to CVPR 2017. (updated on 06/26/2017)
  •   I'm visiting Todd Zickler's lab at Harvard as a visiting researcher since June 2016. (updated on 09/22/2016)
  •   One paper is accepted to CVPR 2016. (updated on 04/13/2016)
  •   ALFDs for MOT challenge dataset are available at here. (updated on 12/22/2015)
  •   One paper is accepted to ICCV 2015. (updated on 09/01/2015)
  •   I'm organizing a tutorial at CVPR 2015 with Hyun Soo Park. (updated on 05/20/2015)
  •   One paper is accepted to CVPR 2015 as an oral presentation. (updated on 03/08/2015)
  •   One paper is accepted to IJCV 2014. (updated on 10/16/2014)
  •   One paper is accepted to ECCV 2014. (updated on 08/11/2014)
  •   One paper is accepted to PAMI 2014. (updated on 01/12/2014)
  •   One paper is accepted to ICCV 2013 and two papers are accepted to ICIAP 2013. (updated on 09/09/2013)
  •   I am co-organizing the first workshop on Understanding Human Activities: Context and Interactions in conjuntion with ICCV 2013, along with Mohamed Amer, Sameh Khamis, and Tian Lan. Please see here for more details. (08/01/2013)

Journal/Book Chapter Publications

  1. W. Choi, Y. Chao, C. Pantofaru and S. Savarese, Indoor Scene Understanding with Geometric and Semantic Contexts, IJCV 2014, [link]
  2. W. Choi and S. Savarese, Understanding Collective Activities of People from Videos, PAMI 2014, [link]
  3. W. Choi and S. Savarese, Recognizing Complex Human Activities via Crowd Context, Book Chapter, Augmented Vision and Reality, Springer 2013, [link]
  4. W. Choi, C. Pantofaru and S. Savarese, A General Framework for Tracking Multiple People from a Moving Camera, PAMI 2013, [pdf][details][bibtex]

Conference/Workshop Publications

  1. G. Chen, W. Choi, X. Yu, T. Han, M. Chandraker, Learning Efficient Object Detection Models with Knowledge Distillation, NIPS, 2017 [to appear]
  2. N. Lee, W. Choi, P. Vernaza, C. Choy, P. Torr, M. Chandraker, DESIRE: Distant Future Prediction in Dynamic Scenes with Interacting Agents, CVPR, 2017 Spotlight [pdf]
  3. S. Schulter, P. Vernaza, W. Choi, M. Chandraker, Deep Network Flow for Multi-Object Tracking, CVPR, 2017 [pdf]
  4. F. Yang, W. Choi, Y. Lin, Exploit All the Layers: Fast and Accurate CNN Object Detector with Scale Dependent Pooling and Cascaded Rejection Classifiers, CVPR, 2016 [pdf]
  5. W. Choi, Near-Online Multi-target Tracking with Aggregated Local Flow Descriptor, ICCV, 2015 [pdf][arXiv][ALFD for MOT REF. DETs]
  6. Y. Xiang, W. Choi, Y. Lin and S. Savarese, Data-Driven 3D Voxel Patterns for Object Category Recognition, CVPR, 2015, accepted as an Oral Presentation [link]
  7. W. Choi, Y. Chao, C. Pantofaru and S. Savarese, Discovering Groups of People in Images, ECCV, 2014, [pdf] [project]
  8. R. Tokola, W. Choi, and S. Savarese, Breaking the chain: liberation from the temporal Markov assumption for tracking human poses, ICCV, 2013 [pdf] [bibtex]
  9. G. Gemignani, W. Choi, A. Ferone, A. Petrosino, and S. Savarese, A Bayesian Approach to Tracking Learning Detection, ICIAP, 2013 [pdf]
  10. Y.Chao, W. Choi, C. Pantofaru and S. Savarese, Layout Estimation of Highly Cluttered Indoor Scenes using Geometric and Semantic Cues, ICIAP, 2013, [pdf] [project] [bibtex]
  11. W. Choi, Y. Chao, C. Pantofaru and S. Savarese, Understanding Indoor Scenes using 3D Geometric Phrases, CVPR, 2013, accepted as an Oral Presentation - 3.2% acceptance rate (60/1870), [pdf] [project] [supplemental material] [pptx] [techtalks.tv] [bibtex]
  12. W. Choi and S. Savarese, A Unified Framework for Multi-Target Tracking and Collective Activity Recognition, ECCV, 2012, accepted as an Oral Presentation - 2.8% acceptance rate, [pdf] [project] [supplementary material] [pptx (Office 2010)] [videolectures.net] [bibtex]
  13. W. Choi, C. Pantofaru and S. Savarese, Detecting and Tracking People using an RGB-D Camera via Multiple Detector Fusion, Workshop on Challenges and Opportunities in Robot Perception (in conjunction with ICCV-11), 2011, [pdf] [bibtex]
  14. W. Choi, K. Shahid and S. Savarese, Learning Context for Collective Activity Recognition, CVPR, 2011, [pdf] [bibtex]
  15. W. Choi and S. Savarese, Multiple Target Tracking in World Coordinate with Single, Minimally Calibrated Camera, ECCV, 2010, [pdf] [project] [bibtex]
  16. W. Choi, K. Shahid and S. Savarese, What are they doing? : Collective Activity Classification using Spatio-Temporal Relationship among People, 9th International Workshop on Visual Surveillance (VSWS09) in conjuction with ICCV 09 [pdf] [project] [bibtex]

Talks

  • Guest Lecture, Computer Vision Class at Stanford University, Stanford, US. "Multiple Target Tracking and Collective Human Activity Understanding", Oct 2013.
  • Seminar, "Understanding Complex Human Behaviors in Videos", VASC Seminar, CMU, Mar 2013
  • Seminar, "Understanding Complex Human Behaviors in Videos", Vision Seminar, UMD, Mar 2013
  • Oral Presentation, "A Unified Framework for Multi-Target Tracking and Collective Activity Recognition", In ECCV, Oct 2012 [videolectures.net]
  • Oral Presentation, "A Unified Framework for Multi-Target Tracking and Collective Activity Recognition", In Midwest Vision Workshop, UIUC, Sep 2012
  • Public Seminar, Seoul National University, Seoul, Korea, host by Prof. Jinyoung Choi. "Understanding Complex Human behaviour by Spatio-Temporal Interactions", Aug 2012.
  • Lab Seminar, Computer Vision Lab at Yonsei University, Seoul, Korea, host by Prof. Hyeran Byun. "Understanding Complex Human behaviour by Spatio-Temporal Interactions", Aug 2012.
  • Guest Lecture, Computer Vision Class at University of Michigan, Ann Arbor, US. "Intro to Object Recognition", Nov 2011.

Awards

  • Spot Recognition Award NEC Laboratories, April 2016
  • NECLA Business Contribution Award NEC Laboratories, July 2015
  • Spot Recognition Award NEC Laboratories, Sep 2014
  • Best poster presentation award during 2012 Engineering Graduate Symposium (University of Michigan)
  • Best poster presentation award during 2009 Engineering Graduate Symposium (University of Michigan)

Internship Experience

  Last updated on June 20, 2020