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Ramesh Raskar

Associate Professor of Media Arts and Sciences
Contact Information:
Groups
Project Research

Decentralized AI

As AI evolves beyond screen assistants and into dimensional applications, decentralization emerges as the critical factor for unlocking i…
Project Research

First 100 days of pandemic; an interplay of pharmaceutical, behavioral and digital interventions - A study using agent based modeling

The challenge of understanding pandemics, illustrated by the recent COVID-19 outbreak, has significantly impacted global health and economi…
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Objects as Cameras

Press: - MIT News:  Using reflections to see the world from new points of view- TechXplore, EuropaPress, La Nacion …
Project Research

Posthoc Privacy guarantees for neural network queries

Cloud based machine learning inference is an emerging paradigm where users query with their data to a service provider who runs a ML model …
Project Research

Task-Agnostic Data Valuation

Data is the main fuel of the modern world, enabling artificial intelligence and driving technological growth. The demand for data has grown…
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Computational Privacy for Computer Vision

Computer Vision applications are making a remarkable impact on society and advancing progress in Machine Learning. Our project aims to desi…
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What can we learn from predicting shadows?

By predicting sparse shadow cues, our physics-inspired machine learning algorithm can reconstruct the underlying 3D scene. Abstract. W…
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Private Machine Learning on Point Clouds

Point clouds are an increasingly ubiquitous input modality and the raw signal can be efficiently processed with recent progress in deep lea…
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Benchmarking Privacy in Machine Learning Prediction

We tackle the question of how to benchmark reconstruction of inputs from deep neural networks representations. This inverse problem is of g…
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Synthesizing data privately for Machine Learning

We propose sanitizer, a framework for secure and task-agnostic data release. While releasing datasets continues to make a big impact in var…
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PrivateMail: Supervised Manifold Learning of Deep Activations With Privacy

Differential Privacy offers strong guarantees such as immutable privacy under any post-processing. In this work, we propose a differentiall…
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DISCO: Dynamic and Invariant Sensitive Channel Obfuscation for deep neural networks

Recent deep learning models have shown remarkable performance in image classification. While these deep learning systems are getting closer…
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FedML: A Research Library and Benchmark for Federated Machine Learning

In this work, we introduce FedML, an open research library and benchmark that facilitates the development of new 'federated learning algori…
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Splintering with distributions: A stochastic decoy scheme for private computation

We present a stochastic scheme for splitting the client data into privatized shares that are transmitted to the server in such settings. Th…
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Assessing Disease Exposure Risk With Location Histories And Protecting Privacy

Governments and researchers around the world are implementing digital contact tracing solutions to stem the spread of infectious disease, n…
Project Research

Safe Paths

Papers from SafePaths: https://github.com/PrivateKit/PrivacyDocumentsSafe Paths is an MIT-led, free, open source technology that …
Project Research

Split Learning: Distributed and collaborative learning

Split Learning: Distributed deep learning without sharing raw data Project Page: https://splitlearning.github.io/Abstract: C…
Project Research

Time-folded optics

Rethinking photography optics in the time dimensionWhat if we could design optics in time instead of space?
Project Research

Through Wall/Table interaction using RF

3D interaction is a magical way for users to interact with a system without touching it. This is usually accomplished using a camera, but t…
Project Research

Grid-free super-resolution for audio imaging

Audio on a mobile device can be used to form low-resolution 3D images. The resolution of audio ranging and imaging is heavily limited by ba…
Project Research

Seeing Through Realistic Fog

Seeing through dense, dynamic, and heterogeneous fog conditions. The technique, based on visible light, uses hardware that is similar to LI…
Project Research

High-frequency LIDAR using beat notes

Time of Flight 3D cameras like the Microsoft Kinect are prevalent in computer vision and computer graphics. In such devices, the power of a…
Project Research

Calibration Invariant Imaging

Object Classification through Scattering Media with Deep LearningA method for classifying objects hidden behind a scattering layer wit…
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Efficient lensless imaging with a femto-pixel

Lensless imaging with compressive ultrafast sensingTraditional cameras require a lens and a mega-pixel sensor to capture images. The lens f…
Project Research

Nashik Smart Citizen Collaboration with TCS

We believe that tough global health problems require an innovation pipeline. We must bring together the people and providers facing health …
Project Research

Identi-Wheez: A device for in-home diagnosis of asthma

Asthma is the most common chronic illness among children. The skills required to diagnose it make it an even greater concern. Our solution …
Project Research

Hyderabad eye health collaboration with LVP

We believe that tough global health problems require an innovation pipeline. We must bring together the people and providers facing health …
Project Research

Health-tech innovations with Tata Trusts, Mumbai

We believe that tough global health problems require an innovation pipeline. We must bring together the people and providers facing health …
Project Research

Beyond the Self-Driving Car

This concept gallery shows the chain of startups and ideas that will follow after the emergence of self-driving cars.
Project Research

The Next 30 Years of VR

In this visual brainstorming, we present the next 30 years of VR in a set of concept designs.
Project Research

AnEye: Extending the reach of anterior segment ophthalmic imaging

Eye exams via a slit lamp are critical in early diagnosis of diseases such as cataracts, corneal injury, and pterygia, in order to avert vi…
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Imaging with All Photons

How to see through tissueWe demonstrate a new method to image through scattering materials like tissue and fog. The demonstration includes …
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Single-Photon Sensitive Ultrafast Imaging

The ability to record images with extreme temporal resolution enables a diverse range of applications, such as time-of-flight depth imaging…
Project Research

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

Fluorescence lifetime imaging is a significant bio-imaging tool that finds important applications in life-sciences. Widely known applicatio…
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Imaging Behind Diffusive Layers

Locating and classifying florescent tags behind turbid layers using time-resovled inversion Using time resolved and sparse optimizatio…
Project Research

Smartphone spectrometer for food sensing

A smartphone based spectrometer design that is standalone and supported on a wireless platform. The device is low-cost and the power consum…
Project Research

Towards In-Vivo Biopsy

A new method to detect and distinguish between different types of fluorescent materials. The suggested technique has provided a dramaticall…
Project Research

Time-of-Flight Microwave Camera

Our architecture takes a hybrid approach to microwaves and treats them like waves of light. Most other work places antennas in a 2D arrange…
Project Research

Skin Perfusion Photography

Skin and tissue perfusion measurements are important parameters for diagnosis of wounds and burns, and for monitoring plastic and reconstru…
Project Research

Unbounded high dynamic range photography using a modulo camera

We present a novel framework to extend the dynamic range of images called Unbounded High Dynamic Range (UHDR) photography with a modulo cam…
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Ultrasound Tomography

Traditional medical ultrasound assumes that we are imaging ideal liquids. We are interested in imaging muscle and bone as well as measuring…
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Inverse problems in time-of-flight imaging

We are exploring mathematical modeling of time-of-flight imaging problems and solutions.
Project Research

Optical Brush: Enabling deformable imaging interfaces

Our deformable camera exploits new, flexible form factors for imaging in turbid media. In this study we enable a brush-like form factor wit…
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New methods in time-of-flight imaging

Time-of-flight (ToF) cameras are commercialized consumer cameras that provide a depth map of a scene, with many applications in computer vi…
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Imaging through scattering media using femtophotography

We use time-resolved information in an iterative optimization algorithm to recover reflectance of a three-dimensional scene hidden behind a…
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Portable Retinal Imaging

The major challenge in preventing blindness is identifying patients and bringing them to specialty care. Diseases that affect the retina, t…
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Single Lens Off-Chip Cellphone Microscopy

Within the last few years, cellphone subscriptions have spread widely and now cover even the remotest parts of the planet. Adequate access …
Project Research

VisionBlocks

VisionBlocks is an on-demand, in-browser, customizable, computer-vision application-building platform for the masses. Even without any prio…
Project Research

Trillion Frames Per Second Camera

We have developed a camera system that captures movies at an effective rate of approximately one trillion frames per second. In one frame o…
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Reflectance acquisition using ultrafast imaging

We demonstrate a new technique that allows a camera to rapidly acquire reflectance properties of objects "in the wild" from a single viewpo…
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Second Skin: Motion capture with actuated feedback for motor learning

We have created a 3D motion-tracking system with automatic, real-time vibrotactile feedback and an assembly of photo-sensors, infrared proj…
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PhotoCloud: Personal to shared moments with angled graphs of pictures

We present a near-real-time system for interactively exploring a collectively captured moment without explicit 3D reconstruction. Our syste…
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LensChat: Sharing photos with strangers

With networked cameras in everyone's pockets, we are exploring the practical and creative possibilities of public imaging. LensChat allows …
Project Research

NETRA: Smartphone add-on for eye tests

Can a person look at a portable display, click on a few buttons, and recover his or her refractive condition? Our optometry solution combin…
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Theory unifying ray and wavefront lightfield propagation

This work focuses on bringing powerful concepts from wave optics to the creation of new algorithms and applications for computer vision and…
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Shield Field Imaging

We present a new method for scanning 3D objects through a single-shot, shadow-based method. We decouple 3D occluders from 4D illumination u…
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Coded Computational Photography

Computational photography is an emerging multi-disciplinary field at the intersection of optics, signal processing, computer graphics and v…
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Looking Around Corners

Using a femtosecond laser and a camera with a time resolution of about one trillion frames per second, we recover objects hidden out of sig…
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6D Display

Is it possible to create passive displays that respond to changes in viewpoint and incident light conditions? Holograms and 4D displays res…