We describe a theoretical framework for reversibly modulating 4D light fields using an attenuating
mask in the optical path of a lens based camera. Based on this framework, we present …

Video cameras are among the most commonly used sensors in a large number of applications,
ranging from surveillance to smart rooms for videoconferencing. There is a need to …

We describe an imaging architecture for compressive video sensing termed programmable
pixel compressive camera (P2C2). P2C2 allows us to capture fast phenomena at frame rates …

Lensless imaging provides opportunities to design imaging systems free from the constraints
imposed by traditional camera architectures. Due to advances in imaging hardware, …

In this paper, we examine image and video-based recognition applications where the
underlying models have a special structure-the linear subspace structure. We discuss how …

We study the object localization problem in images given a single hand-drawn example or a
gallery of shapes as the object model. Although many shape matching algorithms have …

Global illumination effects such as inter-reflections, diffusion and sub-surface scattering
severely degrade the performance of structured light-based 3D scanning. In this paper, we …

An activity consists of an actor performing a series of actions in a pre-defined temporal order.
An action is an individual atomic unit of an activity. Different instances of the same activity …

The recovery of objects obscured by scattering is an important goal in imaging and has
been approached by exploiting, for example, coherence properties, ballistic photons or …

Vital signs such as pulse rate and breathing rate are currently measured using contact probes.
But, non-contact methods for measuring vital signs are desirable both in hospital settings (…