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Publications
2017
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Situational Information Guidance for Revised Detection Limits
Nuclear Science Symposium/Medical Imaging Conference 2017
K. Stadnikia, K. Henderson, S. J. Koppal and A. Enqvist
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A Compact MEMS-Based Wide-Angle Optical Scanner
OMN 2017
B. Yang, L. Zhou, X. Zhang, D. Wang, S. J. Koppal and H. Xie
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Creating Segments and Effects on Comics by Clustering Gaze Data
Transactions on Multimedia Computing (TOMM), 2017
I. Thirunarayan, K. Khetarpal, S.J. Koppal, O. LeMeur, J. Shea, E. Jain
2016
- Pre-Capture Privacy for Small Vision Sensors
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2016
F. Pittaluga and S.J. Koppal
- Focal Flow: Measuring Distance and Velocity with Defocus and Differential Motion.
Winner of Best Student Paper Award
European Conference on Computer Vision, 2016.
E. Alexander, Q. Guo, S.J. Koppal, S.J. Gortler, and T. Zickler
- Leveraging Gaze Data for Segmentation and Effects on Comics.
ACM Symposium on Applied Perception Poster, 2016.
I. Thirunarayanan, S. J. Koppal, J. Shea, E. Jain
- A Survey of Computational Photography in the Small.
IEEE Signal Processing Magazine, 2016.
S. J. Koppal
project page | pdf – Coming soon
- A Wide-angle Immersed MEMS Mirror and Its Application in Optical Coherence Tomography.
International Conference on Optical MEMS and Nanophotonics, 2016.
X. Zhang, L. Zhou, C. Duan, D. Zheng, S. J. Koppal, and H. Xie
pdf | project page – Coming soon
- Sensor-level Privacy for Thermal Cameras.
International Conference on Computational Photography, 2016.
F. Pittaluga, A. Zivkovic and S. J. Koppal
- Wide-angle Structured Light with a Scanning MEMS Mirror in Liquid.
Optics Express 2016.
X. Zhang, S. J. Koppal, R. Zhang, L. Zhou, E. Butler, and H. Xie
pdf | project page – Coming soon
2015
- Low Power Depth and Velocity from a Passive Moving Sensors, 2015.
Extreme Imaging Workshop 2015.
E. Alexander, S. J. Koppal and T. Zickler
- Low-Cost Depth and Radiological Sensor Fusion to Detect Moving Sources
3DV, 2015.
P. Riley, A. Enqvist and S. J. Koppal
- Privacy Preserving Optics for Miniature Vision Sensors
Conference on Computer Vision and Pattern Recognition, 2015.
F. Pittaluga and S. J. Koppal
- Data Fusion for a Vision-Radiological System for Source Tracking and Discovery
Advancements in Nuclear Instrumentation Measurement Methods and their Applic., 2015.
A. Enqvist and S. J. Koppal
- Generalized Assorted Camera Arrays: Robust Cross-channel Registration and Applic.
Transactions on Image Processing, 2015.
J. Holloway, K. Mitra, S. J. Koppal and A. Veeraraghavan
- MEMS Mirrors Submerged in Liquid for Wide-angle Scanning
International Conference on Solid-State Sensors, Actuators and Microsystems, 2015.
X. Zhang, R. Zhang, S. J. Koppal, L. Butler, X. Cheng and H. Xie
- Beyond Perspective Dual Photography with Illumination Masks
Transactions on Image Processing, 2015.
S. J. Koppal and S. G. Narasimhan
2013
- Towards wide-angle micro vision sensors
Transactions on Pattern Analysis and Machine Intelligence, 2013.
Invited paper for special issue
S. J. Koppal, I. Gkioulekas, T. Young, H. Park, K. Crozier, G. Barrows and T. Zickler
2012
- A low-power structured light sensor for outdoor scene reconstruction and dominant material identification
International Workshop on Projector-Camera Systems, 2012.
C. Mertz, S. J. Koppal, S. Sia and S. G. Narasimhan
2011
- Exploiting DLP illumination dithering for reconstruction and photography of high-speed scenes
International Journal on Computer Vision, 2011.
S. J. Koppal, S. Yamazaki and S. G. Narasimhan
- A viewer-centric editor for stereoscopic cinema
IEEE Computer Graphics and Applications, 2011.
S. J. Koppal, L. Zitnick, M. Cohen, S. Kang, B. Ressler and A. Colburn
- Wide-angle micro sensors for vision on a tight budget
Conference on Computer Vision and Pattern Recognition, 2011.
Oral Presentation, 4% acceptance rate
S. J. Koppal, I. Gkioulekas, T. Zickler and G. Barrows
2009
- Shadow cameras: Reciprocal views from illumination masks
International Conference on Computer Vision, 2009.
Poster Presentation, 20% acceptance rate
S. J. Koppal and S. G. Narasimhan
2008
- Temporal dithering of illumination for fast active vision
European Conference on Computer Vision, 2008.
Oral Presentation, 4% acceptance rate
S. G. Narasimhan, S. J. Koppal and S. Yamazaki
- Illustrating motion through DLP photography
International Workshop on Projector-Camera Systems, 2008.
S. J. Koppal and S. G. Narasimhan
- Appearance derivatives for iso-normal clustering of scenes
Transactions on Pattern Analysis and Machine Intelligence, 2008.
S. J. Koppal and S. G. Narasimhan
2007
- Novel depth cues from uncalibrated near-field lighting
International Conference on Computer Vision, 2007.
Poster Presentation, 20% acceptance rate
S. J. Koppal and S. G. Narasimhan
2006
- Clustering appearance for scene analysis
Conference on Computer Vision and Pattern Recognition, 2006.
Oral Presentation, 4% acceptance rate
S. J. Koppal and S. G. Narasimhan
- Taylor series of appearance functions
CMU-Robotics Institute Technical report, 2006.
S. J. Koppal, A. Datta, S. G. Narasimhan and K. Nishino
2005
- Structured light from scattering media
International Conference on Computer Vision, 2005.
Oral Presentation, 4% acceptance rate
S. G. Narasimhan, S. K. Nayar, B. Sun and S. J. Koppal
