Vivek Goyal
CCSS: Reimagining Frequency-Modulated Continuous-Wave Lidar
Three-dimensional representations of scenes are of growing importance. For example, robots and autonomous vehicles rely on 3D mapping for path planning and safe navigation, and augmented reality systems use 3D scene models when they create visual overlays with useful information. These representations are also used in many other fields, such as surgical planning, architecture, and […]
CIF: Small: Atmospheric Absorption-Based Computational Sensing
Humans and machines make sense of their surroundings first and foremost using vision, and vision is limited when there is a lack of light in the familiar visible spectrum, with wavelengths from 380 nm (violet) to 750 nm (red). However, light is often plentiful in situations when visible light is lacking (such as at night), […]
CCSS: Signal Processing for Single-Photon Detectors
Light has a fundamental smallest quantity – a photon – that is very far from everyday human experience. For example, the number of photons collected by the camera in a mobile phone to form a typical photograph is in the trillions. Nevertheless, there are some increasingly common devices that rely on measuring light down to […]
Super Headlights: Superconducting Nanowire Detectors for Passive Infrared Sensing
CISE Faculty Affiliate Professor Vivek Goyal (ECE) received a Defense Advanced Research Projects Agency (DARPA) subaward for his work in connection with the agency’s Invisible Headlights program. Professor Goyal is working under an award to MIT entitled, “Super Headlights: Superconducting Nanowire Detectors for Passive Infrared Sensing.” The DARPA Invisible Headlights program has a very ambitious […]
Collaborative Research: CIF: Medium: Occlusion and Directional Resolution in Computational Imaging
Seeing around a corner without using a mirror seems like an impossible feat, and an ordinary camera does not seem to help. In this project, the research team will develop systems to process images and videos from ordinary cameras to construct around-the-corner views and to infer other scene features that are hidden from direct view […]
CIF: Small: Sequential and Compound Estimation for Computational Imaging Systems
The widespread use of imaging technologies across biology, chemistry, material science, medicine, and other fields is motivated by the great innate human ability for visual information processing. Imaging is often limited, however, by the damage to a sample caused by the imaging process, such as sputtering due to the incident ion or electron beam in […]
CIF: Small: Low-Light 3D Imaging: From Fundamental Limits to Practical Systems
Forming images with focused, spatially resolved light is an area of rapid innovation due to the growing use of computational methods and the variety of meanings of ?image.? Aside from being photograph-like, an image acquired through optical means could show distances, thicknesses, chemical concentrations, molecular energy transfers and many other properties, depending on the methods […]
CIF: Small: Quantization for Acquisition and Computation Networks
Networks of sensors are increasingly important in a variety of applications including national security, environmental monitoring, and health care. These systems should serve their purposes with minimal communication between sensors and minimal computation overhead from coding. In particular, these efficiencies can dramatically improve battery life, and in systems such as those implanted in a body, […]