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Ramesh Raskar

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

PlatoNeRF: 3D Reconstruction in Plato's Cave via Single-View Two-Bounce Lidar

3D reconstruction from a single-view is challenging because of the ambiguity from monocular cues and lack of information about occluded reg…
Archived
Archived
Project Research

Turning Objects into Cameras

Consider a small object sitting on a desk in your living room. The object is illuminated by light sources from all directions—this includes…
Archived
Archived
Project Research

Using Shadows to See Behind Objects

The full text of our paper is available here.Sometimes the thing that we want to see is hidden behind something else. A neighboring vehicl…
Archived
Archived
Project Research

Kinected Conference

What we can do if the screen in videoconference rooms can turn into an interactive display? With Kinect camera and sound sensors, We explor…
Archived
Archived
Project Research

Streetchange

Computer vision uncovers predictors of physical urban change

Archived
Archived
Project Research

StreetScore

StreetScore is a machine learning algorithm that predicts the perceived safety of a streetscape. StreetScore was trained using 2,920 images…
Archived
Project Research

Eyeglasses-Free Displays

Millions of people worldwide need glasses or contact lenses to see or read properly. We introduce a computational display technology that p…
Archived
Project Research

SpecTrans: Classification of Transparent Materials and Interactions

Surface and object recognition is of significant importance in ubiquitous and wearable computing. While various techniques exist to infer c…
Archived
Archived
Project Research

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

We introduce Zensei, an implicit sensing system that leverages bio-sensing, signal processing, and machine learning to classify uninstrumen…
Archived
Archived
Project Research

A Switchable Light-Field Camera

We propose a flexible light-field camera architecture that represents a convergence of optics, sensor electronics, and applied mathematics.…
Archived
Archived
Project Research

Coded Focal Stack Photography

We present coded focal stack photography as a computational photography paradigm that combines a focal sweep and a coded sensor readout wit…
Archived
Project Research

Compressive Light-Field Camera: Next Generation in 3D Photography

Consumer photography is undergoing a paradigm shift with the development of light field cameras. Commercial products such as those by Lytro…
Archived
Project Research

Tensor Displays: High-Quality Glasses-Free 3D TV

Tensor displays are a family of glasses-free 3D displays comprising all architectures employing (a stack of) time-multiplexed LCDs illumina…
Archived
Project Research

SpeckleSense

Motion sensing is of fundamental importance for user interfaces and input devices. In applications where optical sensing is preferred, trad…
Archived
Archived
Project Research

Polarization Fields: Glasses-Free 3DTV

We introduce polarization field displays as an optically efficient design for dynamic light field display using multi-layered LCDs. Such di…
Archived
Project Research

Layered 3D: Glasses-Free 3D Printing

We are developing tomographic techniques for image synthesis on displays composed of compact volumes of light-attenuating material. Such vo…
Archived
Project Research

CATRA: Mapping of Cataract Opacities Through an Interactive Approach

We introduce a novel interactive method to assess cataracts in the human eye by crafting an optical solution that measures the perceptual i…
Archived
Project Research

Slow Display

How can we show our 16-megapixel photos from our latest trip on a digital display? How can we create screens that are visible in direct sun…
Archived
Project Research

Bokode: Imperceptible Visual Tags for Camera-Based Interaction from a Distance

With over a billion people carrying camera-phones worldwide, we have a new opportunity to upgrade the classic bar code to encourage a flexi…
Archived
Archived
Project Research

Soundaround

Recently, multi-view display hardware has made compelling progress in graphics. Soundaround is a multi-viewer interactive audio system, des…
Archived
Archived
Project Research

HR3D: Glasses-Free 3DTV

For 3D displays to be successful, they must be bright enough to compete with 2D displays and not diminish display resolution. To date, stac…
Archived
Archived
Project Research

BiDi Screen

The BiDi Screen is an example of a new type of thin I/O device that possesses the ability both to capture images and display them. Scene de…
Archived
Archived
Project Research

EmBuddy

EmBuddy is a digital creature that senses its user's stress levels via an EEG headset. When EmBuddy's user is stressed, EmBuddy will wiggle…
Archived
Archived
Project Research

Vision on Tap

Computer vision is a class of technologies that lets computers use cameras to automatically stitch together panoramas, reconstruct 3D geome…
Archived
Project Research

Full Resolution Lightfields using Heterodyne Camera

Light field camera have inherent trade offs between spatial and angular resolution. We mathematically model the image capture in light fiel…
Archived