This paper presents techniques for tracking non-line-of-sight (NLOS) objects using speckle
imaging. We develop a novel speckle formation and motion model where both the sensor …

Force sensing has been a key enabling technology for a wide range of interfaces such as
digitally enhanced body and world surfaces for touch interactions. Additionally, force often …

This paper exploits laser speckle photometry (LSP), a full-field non-contact optical-based
image analysis technique, for effectively and rapidly imaging hidden damage in structures …

Visual object recognition under situations in which the direct line-of-sight is blocked, such as
when it is occluded around the corner, is of practical importance in a wide range of …

Despite advancements in egocentric hand tracking using head-mounted cameras, contact
detection with real-world objects remains challenging, particularly for the quick motions often …

Surface and object recognition is of significant importance in ubiquitous and wearable
computing. While various techniques exist to infer context from material properties and …

Sensors that measure their motion with respect to the surrounding environment (ego-motion
sensors) can be broadly classified into two categories. First is inertial sensors such as …

The subtle vibrations on an object's surface contain information about the object's physical
properties and its interaction with the environment. Prior works imaged surface vibration to …

Optical physical unclonable functions (O-PUFs) are materials containing a large number of
randomly distributed degrees of freedom that can be probed optically. We develop tamper …

Objects engaged by users' hands contain rich contextual information for their strong
correlation with user activities. Tools such as toothbrushes and wipes indicate cleansing and …