Making the invisible visible–inside our bodies, around us, and beyond–for health, work, and connection

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Camera Culture

Camera Culture

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Publication

Dynamic Channel Pruning for Privacy

Abhishek Singh, Vivek Sharma, Ayush Chopra, Praneeth Vepakomma, Ethan Z Garza, Ramesh Raskar. "Dynamic Channel Pruning for Privacy." Poster session, Privacy Preserving Machine Learning Workshop (NeurIPS 2020). Preprint. Under review.

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FedML: A Research Library and Benchmark for Federated Machine Learning

NeurIPS-SpicyFL 2020, Chaoyang He, Songze Li, Jinhyun So, Mi Zhang, Xiao Zeng, Hongyi Wang, Xiaoyang Wang, Praneeth Vepakomma, Abhishek Singh, Hang Qiu, Xinghua Zhu, Jianzong Wang, Li Shen, Peilin Zhao, Yan Kang, Yang Liu, Ramesh Raskar, Qiang Yang, Murali Annavaram and Salman Avestimehr

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DAMS: Meta-estimation of private sketch data structures for differentially private COVID-19 contact tracing

DAMS: Meta-estimation of private sketch data structures for differentially private COVID-19 contact tracing, Praneeth Vepakomma, Subha Nawer Pushpita and Ramesh Raskar, PPML (Privacy Preserving Machine Learning workshop) at NeurIPS

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Imaging Behind Occluders Using Two-Bounce Light

Henley, C., Maeda, T., Swedish, T., & Raskar, R. (2020). Imaging Behind Occluders Using Two-Bounce Light. Computer Vision – ECCV 2020 Lecture Notes in Computer Science, 573-588. doi:10.1007/978-3-030-58526-6_34

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Splintering with distributions: A stochastic decoy scheme for private computation

Vepakomma, P., Balla, J., Raskar, R., "Splintering with distributions: A stochastic decoy scheme for private computation." 6 Jul 2020.

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Advances and Open Problems in Federated Learning

Peter Kairouz, H. Brendan McMahan, et al. "Advances and Open Problems in Federated Learning." arXiv:1912.04977 [cs.LG] 10 Dec 2019.

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ExpertMatcher: Automating ML Model Selection for Clients using Hidden Representations

Vivek Sharma, Praneeth Vepakomma, Tristan Swedish, Ken Chang, Jayashree KalpathyCramer, and Ramesh Raskar. In NeurIPS Workshop on Robust AI in Financial Services: Data, Fairness, Explainability, Trustworthiness, and Privacy, 2019

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Maximal adversarial perturbations for obfuscation: Hiding certain attributes while preserving rest

Indu Ilanchezian, Praneeth Vepakomma, Abhishek Singh, Otkrist Gupta, GN Prasanna, Ramesh Raskar

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ExpertMatcher: Automating ML Model Selection for Users in Resource Constrained Countries

Vivek Sharma, Praneeth Vepakomma, Tristan Swedish, Ken Chang, Jayashree Kalpathy-Cramer, Ramesh Raskar. In NeurIPS Workshop on Machine learning for the Developing World (ML4D), 2019

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Detailed comparison of communication efficiency of split learning and federated learning,

Praneeth Vepakomma, et al. "Detailed comparison of communication efficiency of split learning and federated learning." arXiv:1909.09145v1 [cs.LG] 18 Sep 2019.

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Data Markets to support AI for All: Pricing, Valuation and Governance

Ramesh Raskar, Praneeth Vepakomma, Tristan Swedish, Aalekh Sharan. Data Markets to support AI for All: Pricing, Valuation and Governance, arXiv:1905.06462 (2019).

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Reducing leakage in distributed deep learning for sensitive health data

Praneeth Vepakomma, Otkrist Gupta, Abhimanyu Dubey, Ramesh Raskar. Reducing Leakage in Distributed Deep Learning for Sensitive Health Data, ICLR 2019 AI for Social Good Workshop (2019).

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Light-Field for RF

Light-Field for RF. Manikanta Kotaru, Guy Satat, Ramesh Raskar, Sachin Katti, arXiv:1901.03953 (2019).

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A Review of Homomorphic Encryption Libraries for Secure Computation

Sai Sri Sathya, Praneeth Vepakomma, Ramesh Raskar, Ranjan Ramachandra, Santanu Bhattacharya. arXiv:1812.02428

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Split learning for health: Distributed deep learning without sharing raw patient data

Praneeth Vepakomma, Otkrist Gupta, Tristan Swedish, Ramesh Raskar. Split learning for health: Distributed deep learning without sharing raw patient data, arXiv.org, ICLR 2019 AI for Social Good Workshop (2018).

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Flash Photography for Data-Driven Hidden Scene Recovery

Flash Photography for Data-Driven Hidden Scene Recovery. Matthew Tancik, Guy Satat, Ramesh Raskar, arXiv:1810.11710 (2018).

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Photography optics in the time dimension

Heshmat, B., Tancik, M., Satat, G. & Raskar, R. Photography optics in the time dimension. Nature Photonics 12, 560–566 (2018). 10.1038/s41566-018-0234-0

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Towards Photography Through Realistic Fog

G. Satat, M. Tancik and R. Raskar, "Towards Photography Through Realistic Fog", IEEE International Conference on Computational Photography (ICCP), (2018).

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Rethinking Machine Vision Time of Flight With GHz Heterodyning

Kadambi, Achuta and Raskar, Ramesh, Rethinking Machine Vision Time of Flight with GHz Heterodyning, IEEE Access 2017

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Calibration Invariant Imaging with Deep Learning

Guy Satat, Matthew Tancik, Otkrist Gupta, Barmak Heshmat, and Ramesh Raskar, "Object classification through scattering media with deep learning on time resolved measurement," Opt. Express 25, 17466-17479 (2017)

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Polarized 3D Cameras for high-quality 3D scanning

Kadambi, Achuta, et al. "Depth Sensing Using Geometrically Constrained Polarization Normals." International Journal of Computer Vision 125.1-3 (2017): 34-51.

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Zensei: Embedded, Multi-electrode Bioimpedance Sensing for Implicit, Ubiquitous User Recognition

Munehiko Sato, Rohan S. Puri, Alex Olwal, Yosuke Ushigome, Lukas Franciszkiewicz, Deepak Chandra, Ivan Poupyrev, and Ramesh Raskar. 2017. Zensei: Embedded, Multi-electrode Bioimpedance Sensing for Implicit, Ubiquitous User Recognition. In Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems (CHI '17). ACM, New York, NY, USA, 3972-3985.

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Femto-Photography: Capturing Light in Motion

A Jarabo, B Masia, A Velten, R Raskar, D Gutiérrez Jornada de Jóvenes Investigadores del I3A, 2017

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Designing Neural Network Architectures using Reinforcement Learning

Bowen Baker, Otkrist Gupta, Nikhil Naik, Ramesh Raskar arXiv preprint arXiv:1611.02167

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LRA: Local Rigid Averaging of Stretchable Non-rigid Shapes

Raviv, D., Bayro-Corrochano, E. & Raskar, R. Int J Comput Vis (2017). doi:10.1007/s11263-017-1002-1

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Lensless Imaging with Compressive Ultrafast Sensing

Guy Satat, Matthew Tancik, Ramesh Raskar 10.1109/TCI.2017.2684624

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Sampling Without Time: Recovering Echoes of Light via Temporal Phase Retrieval

Ayush Bhandari, Aurelien Bourquard, Ramesh Raskar 12 pages, 4 figures, to appear at the 42nd IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

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32 Image Processing in Medical Imaging

Anshuman J Das, Ramesh Raskar Global Health Informatics: Principles of Ehealth and Mhealth to Improve Quality of Care, page 403

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SPAD cameras for biomedical imaging: Promise and problems

Barmak Heshmat, Genevieve Gariepy, Jonathan Leach, Ramesh Raskar, Daniele Faccio Lasers and Electro-Optics (CLEO), 2016 Conference, IEEE, Pages 1-2

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Volume estimation of tonsil phantoms using an oral camera with 3D imaging

Anshuman J. Das, Tulio A. Valdez, Jose Arbouin Vargas, Punyapat Saksupapchon, Pushyami Rachapudi, Zhifei Ge, Julio C. Estrada, and Ramesh Raskar

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Macroscopic Interferometry

Achuta Kadambi, Jamie Schiel, Ramesh Raskar

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Sweep Distortion Removal from THz Images via Blind Demodulation

Alireza Aghasi, Barmak Heshmat, Albert Redo-Sanchez, Justin Romberg, Ramesh Raskar Optica, Vol.3, Issue 7, pp. 754-762

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Deep learning the city: Quantifying urban perception at a global scale

Abhimanyu Dubey, Nikhil Naik, Devi Parikh, Ramesh Raskar, César A Hidalgo Springer International Publishing

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Terahertz time-gated spectral imaging for content extraction through layered structures

Albert Redo-Sanchez, Barmak Heshmat, Alireza Aghasi, Salman Naqvi, Mingjie Zhang, Justin Romberg, Ramesh Raskar Nature Communications, Volume 7, Pages 12665

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Imaging the propagation of light through scenes at picosecond resolution

Andreas Velten, Di Wu, Belen Masia, Adrian Jarabo, Christopher Barsi, Chinmaya Joshi, Everett Lawson, Moungi Bawendi, Diego Gutierrez, Ramesh Raskar Communications of the ACM, Volume 59, Issue 9. Pages 79-86

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Signal Processing for Time-of-Flight Imaging Sensors: An introduction to inverse problems in computational 3-D imaging

Ayush Bhandari, Ramesh Raskar IEEE Signal Processing Magazine, Volume 33, Issue 5, Pages 45-58

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Identi-wheez—A device for in-home diagnosis of asthma

Guy Satat, Krithika Ramchander, Ramesh Raskar Engineering in Medicine and Biology Society (EMBC), 2016 IEEE 38th Annual International Conference, Pages 4375-4378

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Remote Real-Time Physiological Measurement and Visualization

Otkrist Gupta, Daniel McDuff, Ramesh Raskar CVPR 2016

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Macroscopic Interferometry With Electrons, Instead of Photons

Achuta Kadambi, Jamie Schiel, Ramesh Raskar Imaging Systems and Applications, IW3F. 1

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Computational Laser Speckle Contrast Imaging in Endoscopic System

Guy Satat, Barmak Heshmat, Tristan Swedish, and Ramesh Raskar Imaging and Applied Optics 2016, OSA Technical Digest (online) (Optical Society of America, 2016), paper JT3A.29.

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Capturing the human body: from VR, consumer, to health applications

Hao Li, Lingyu Wei, Anshuman Das, Tristan Swedish, Pratik Shah, Ramesh Raskar ACM SIGGRAPH 2016 Courses, Page 7

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Sweep Distortion Removal from THz Images via Blind Demodulation

Alireza Aghasi, Barmak Heshmat, Albert Redo-Sanchez, Justin Romberg, Ramesh Raskar

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Remote Real-Time Physiological Measurement and Visualization

Otkrist Gupta, Daniel McDuff, Ramesh Raskar

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Tyndall Windows: Tunable Scattering of Disordered Solid–Liquid Matching Mixtures

Benedikt Groever, Barmak Heshmat, Ramesh Raskar ACS Photonics, Volume 3, Pages 930-935

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Open-Source, Ultra-Low-Cost Smartphone Attachment for Non-Mydriatic Fundus Photography-Open Indirect Ophthalmoscope

Devesh Jain, Tristan Swedish, Bailey Shen, David Y Kim, Shizuo Mukai, Ramesh Raskar Investigative Ophthalmology & Visual Science, Volume 57, Issue 12, Page 1685

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Advances in ultrafast optics and imaging applications

Guy Satat, Barmak Heshmat, Nikhil Naik, Albert Redo-Sanchez, and Ramesh Raskar Proc. SPIE 9835, Ultrafast Bandgap Photonics, 98350Q (May 13, 2016); doi:10.1117/12.2222438

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Shape from Mixed Polarization

Vage Taamazyan, Achuta Kadambi, Ramesh Raskar arXiv preprint arXiv:1605.02066

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eyeSelfie 2.0: Display and Algorithm for Self Directed Bi-ocular Alignment for Fundus Photography

Tristan Swedish, Karin Roesch, Devesh Jain, Ramesh Raskar Investigative Ophthalmology & Visual Science, Volume 57, Issue 12, Page 5968

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Crowd-sourcing meets deep learning: A hybrid approach for retinal image annotation

Karin Roesch, George Leifman, Tristan Swedish, Dhruv Joshi, Vishal Gupta, Jay Chhablani, Ramesh Raskar Investigative Ophthalmology & Visual Science, Volume 57, Issue 12, Page 5965

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Cities are physical too: Using computer vision to measure the quality and impact of urban appearance

Nikhil Naik, Ramesh Raskar, César A Hidalgo The American Economic Review, Volume 106, Issue 5, Pages 128-132

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Occluded imaging with time-of-flight sensors

Achuta Kadambi, Hang Zhao, Boxin Shi, Ramesh Raskar ACM Transactions on Graphics (ToG), Vol 35, Issue 2, Page 15

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Occluded Imaging with Time of Flight Sensors

Achuta Kadambi, Hang Zhao, Boxin Shi, Ramesh Raskar

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Tensor low-rank and sparse light field photography

Mahdad Hosseini Kamal, Barmak Heshmat, Ramesh Raskar, Pierre Vandergheynst, Gordon Wetzstein Computer Vision and Image Understanding, Volume 145, Pages 172-181

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3D optical imagery for motion compensation in a limb ultrasound system

Bryan J Ranger, Micha Feigin, Xiang Zhang, Al Mireault, Ramesh Raskar, Hugh M Herr, Brian W Anthony SPIE Medical Imaging

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Volume estimation of tonsil phantoms using an oral camera with 3D imaging

Anshuman J. Das, Tulio A. Valdez, Jose Arbouin Vargas, Punyapat Saksupapchon, Pushyami Rachapudi, Zhifei Ge, Julio C. Estrada, Ramesh Raskar

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Multi-velocity neural networks for gesture recognition in videos

Otkrist Gupta, Dan Raviv, Ramesh Raskar

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Multi-velocity neural networks for gesture recognition in videos

Otkrist Gupta, Dan Raviv, Ramesh Raskar Cornell University Library arXiv:1603.06829

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Deep video gesture recognition using illumination invariants

Otkrist Gupta, Dan Raviv, Ramesh Raskar

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Deep video gesture recognition using illumination invariants

Otkrist Gupta, Dan Raviv, Ramesh Raskar Cornell University Library arXiv:1603.06531

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Conservation of a room: A treatment proposal for Mark Rothko's Harvard Murals 2016

Jens Stenger, Narayan Khandekar, Ramesh Raskar, Santiago Cuellar, Ankit Mohan, Rudolf Gschwind Studies in Conservation

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A Smartphone attachment for slit lamp-like imaging of the anterior segment of the eye

Shantanu Sinha, Ramesh Raskar Investigative Ophthalmology & Visual Science, Volume 57, Issue 12, Page 1686

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A purely solid-state device for rapid reconstruction of 3D models of the anterior segment of the eye with no moving parts

Pushyami Rachapudi, Shantanu Sinha, Albert Redo-Sanchez, Ramesh Raskar Investigative Ophthalmology & Visual Science, Volume 57, Issue 12, Page 1908

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Computational Laser Speckle Contrast Imaging in Endoscopic System

Guy Satat, Barmak Heshmat, Tristan Swedish, Ramesh Raskar

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Blind and reference-free fluorescence lifetime estimation via consumer time-of-flight sensors

A. Bhandari, C. Barsi, R. Raskar

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RFlow: User Interaction Beyond Walls

Hisham Bedri, Otkrist Gupta, Micha Feign, Andrew Temme, Gregory Charvat, Ramesh Raskar