Imaging

Access our comprehensive library of technical briefs on imaging, from engineering experts at NASA and major government, university, and commercial laboratories.

Briefs : Imaging
Full-Color Holograms Can Be Viewed With Low Light
Full-Color Holograms Can Be Viewed With Low Light

Researchers have created inexpensive, full-color, 2D and 3D holograms that are more realistic and brighter, and can be viewed at wider angles than current holograms.

Full-Color Holograms Can Be Viewed With Low Light
Briefs : Imaging
Decoding Multiple Frames from a Single, Scattered Exposure
Decoding Multiple Frames from a Single, Scattered Exposure

When light gets scattered as it passes through a translucent material, the emerging pattern of “speckle” looks as random as static on a television screen with no signal. But it...

Decoding Multiple Frames from a Single, Scattered Exposure
Briefs : Imaging
Visualizing Motion of Water Molecules for Liquid-Based Electronics

A high-resolution inelastic x-ray scattering technique was used to measure the strong bond involving a hydrogen atom sandwiched between two oxygen atoms. This hydrogen bond is a quantum-mechanical phenomenon responsible for various properties of water, including viscosity, that...

Briefs : Imaging
Technique Makes Objects Invisible to Image Detection Systems
Technique Makes Objects Invisible to Image Detection Systems

Adversarial techniques were developed that can make objects “invisible” to image detection systems that use deep-learning algorithms. These techniques can also trick systems...

Technique Makes Objects Invisible to Image Detection Systems
Briefs : Imaging
Efficient Hexagonally Sampled Image Processing
Efficient Hexagonally Sampled Image Processing

It has been known since the early 1960s that hexagonal sampling is the optimal sampling approach for isotropically band-limited images, providing a 13.4% improvement in sampling efficiency over...

Efficient Hexagonally Sampled Image Processing
Briefs : Imaging
Automated Object Detection in an Image

Recent developments in machine vision have demonstrated remarkable improvements in the ability of computers to properly identify objects in a viewing field. Most of these advances rely on color-texture analyses that require target objects to possess one or more highly distinctive, local features that can be...

Briefs : Imaging
Method Adjusts Structure of Dyes to Create Colorful Fluorescent Molecules
Method Adjusts Structure of Dyes to Create Colorful Fluorescent Molecules

Until about 20 years ago, scientists relied on chemical fluorescent dyes to make biological molecules visible. To look inside cells, stain organelles, and perform...

Method Adjusts Structure of Dyes to Create Colorful Fluorescent Molecules
Briefs : Imaging
Surgeons Use Augmented Reality to Reconnect Blood Vessels
Surgeons Use Augmented Reality to Reconnect Blood Vessels

Following severe trauma, patients may have tissue damage or open wounds that require reconstructive surgery using fasciocutaneous flaps. These flaps of tissue, which are taken from...

Surgeons Use Augmented Reality to Reconnect Blood Vessels
Briefs : Imaging
Microfocus, Dual-Energy Imaging System Improves Contaminant Detection

Contamination of food with fragments of bone, metal, glass, or other foreign material is a major concern in the food industry. Current inspection technologies often miss very small fragments embedded in meat or other soft materials or lead to ambiguous results that require...

Briefs : Sensors/Data Acquisition
More Sensitive Measurement of Semiconductor Material Quality
More Sensitive Measurement of Semiconductor Material Quality

Accurately measuring semiconductor properties of materials in small volumes helps engineers determine the range of applications for which these materials may be suitable in the...

More Sensitive Measurement of Semiconductor Material Quality
Briefs : Photonics/Optics
Face-Tracking Robot
Face-Tracking Robot

A robot is being developed that tracks facial movements to perform human tasks. The robot resembles large, squiggly arms holding tiny cameras. Sitting in a rolling office chair across from one of the arms, the robot's...

Face-Tracking Robot
Briefs : Electronics & Computers
Breakthrough Could Enable Infrared Cameras for Electronics, Self-Driving Cars
Breakthrough Could Enable Infrared Cameras for Electronics, Self-Driving Cars

There's an entire world our eyes miss, hidden in the ranges of light wavelengths that human eyes can't see. But infrared cameras can pick up this light emitted as...

Breakthrough Could Enable Infrared Cameras for Electronics, Self-Driving Cars
Briefs : Imaging
Bringing Human-Like Reasoning to Driverless Car Navigation
Bringing Human-Like Reasoning to Driverless Car Navigation

With the aim of bringing more human-like reasoning to autonomous vehicles, MIT researchers have created a system that uses only simple maps and visual data to enable driverless cars...

Bringing Human-Like Reasoning to Driverless Car Navigation
Briefs : Photonics/Optics
Revolutionary Camera Allows Scientists to Predict Evolution of Ancient Stars
Revolutionary Camera Allows Scientists to Predict Evolution of Ancient Stars

Scientists at the University of Sheffield have been working with HiPERCAM, a high-speed, multicolor camera, which is capable of taking more than 1,000 images per...

Revolutionary Camera Allows Scientists to Predict Evolution of Ancient Stars
Briefs : Electronics & Computers
3D Printing of Flexible Circuits

A process was developed for 3D printing that can be used to produce transparent and mechanically flexible electronic circuits. The electronics consist of a mesh of silver nanowires that can be printed in suspension and embedded in various flexible and transparent plastics (polymers). This technology can enable...

Briefs : Sensors/Data Acquisition
Graphene Lid Extends Photoemission Electron Microscopy to Liquids
Graphene Lid Extends Photoemission Electron Microscopy to Liquids

By capping liquids with graphene (an ultrathin sheet of pure carbon), researchers can easily image and analyze liquid interfaces and the surface of nanometer-scale objects...

Graphene Lid Extends Photoemission Electron Microscopy to Liquids
Briefs : Software
Model Gives Robots a Better Feel for Object Manipulation
Model Gives Robots a Better Feel for Object Manipulation

A new learning system improves a robot’s ability to mold materials into target shapes and make predictions about interacting with solid objects and liquids. The system, known as a...

Model Gives Robots a Better Feel for Object Manipulation
Sensor Technology : Wearables
Graphene-Based Technology for Wearable Health Monitoring
Graphene-Based Technology for Wearable Health Monitoring

Graphene Flagship partner ICFO, based in Barcelona, Spain is developing graphene-based prototypes that aim to turn mobile phones into life saving devices. The first of these will allow...

Graphene-Based Technology for Wearable Health Monitoring
Briefs : Medical
Ingestible, Expanding Pill Monitors the Stomach for Up to a Month
Ingestible, Expanding Pill Monitors the Stomach for Up to a Month

An ingestible pill was developed that, upon reaching the stomach, quickly swells to the size of a soft, squishy ping-pong ball big enough to stay in the stomach for an...

Ingestible, Expanding Pill Monitors the Stomach for Up to a Month
Briefs : Electronics & Computers
Design Software Identifies a Product's Performance Tradeoffs

Designing any product — from complex car parts to wrenches — is a balancing act with conflicting performance tradeoffs. Making something lightweight, for instance, may compromise its durability.

Briefs : Photonics/Optics
Non-Destructive Evaluation (NDE) of Structures Using Transient and Lock-in Thermography
Non-Destructive Evaluation (NDE) of Structures Using Transient and Lock-in Thermography

Researchers at NASA’s Johnson Space Center improved their Flash Thermography capabilities by incorporating transient and lock-in thermography. By...

Non-Destructive Evaluation (NDE) of Structures Using Transient and Lock-in Thermography
Sensor Technology : Manufacturing & Prototyping
3D Printable Sensors Disposed of Without Contaminating the Environment
3D Printable Sensors Disposed of Without Contaminating the Environment

Simon Fraser University and Swiss researchers are developing an eco-friendly, 3D printable solution for producing wireless Internet-of-Things (IoT) sensors that can be...

3D Printable Sensors Disposed of Without Contaminating the Environment
Briefs : Wearables
Self-Powered, Washable, Wearable Displays

Clothing usually is formed with textiles and has to be both wearable and washable for daily use; however, smart clothing has had a problem with its power sources and moisture permeability, which causes the devices to malfunction. To solve this problem, a textile-based, wearable display module technology...

Briefs : Electronics & Computers
Stretchable, Rubbery Semiconductors
Stretchable, Rubbery Semiconductors

Researchers have created stretchable, rubbery semiconductors including rubbery integrated electronics, logic circuits, and arrayed sensory skins fully based on rubber materials. The semiconductors have...

Stretchable, Rubbery Semiconductors
Briefs : Photonics/Optics
In-Situ Characterization and Inspection of Additive Manufacturing Deposits Using Transient Infrared Thermography
In-Situ Characterization and Inspection of Additive Manufacturing Deposits Using Transient Infrared Thermography

Additive manufacturing, or 3D printing, is a rapidly growing field in which solid objects can be produced layer-by-layer. This...

In-Situ Characterization and Inspection of Additive Manufacturing Deposits Using Transient Infrared Thermography
Briefs : Nanotechnology
Coating Prevents Fogging on Transparent Surfaces
Coating Prevents Fogging on Transparent Surfaces

Anyone who skis, wears glasses, uses a camera, or drives a car is familiar with the problem: Coming into a humid environment from the cold causes eyewear, camera lenses, or windshields to...

Coating Prevents Fogging on Transparent Surfaces
Briefs : Automotive
Novel Techniques Trick Object Detection Systems
Novel Techniques Trick Object Detection Systems

New adversarial techniques developed by engineers at Southwest Research Institute can make objects “invisible” to image detection systems that use deep-learning algorithms. These techniques...

Novel Techniques Trick Object Detection Systems
Briefs : Lighting
Detect Ultra Rare Proteins in Blood Using a Cellphone Camera
Detect Ultra Rare Proteins in Blood Using a Cellphone Camera

One of the frontiers of medical diagnostics is the race for more sensitive blood tests. The ability to detect extremely rare proteins could make a life-saving difference for many...

Detect Ultra Rare Proteins in Blood Using a Cellphone Camera
Briefs : Photonics/Optics
3D Printer Uses Rays of Light to Shape Objects
3D Printer Uses Rays of Light to Shape Objects

Most 3D printers, including light-based techniques, build up 3D objects layer by layer. This leads to a “stair-step” effect along the edges. They also have difficulties creating flexible...

3D Printer Uses Rays of Light to Shape Objects
Briefs : Mechanical & Fluid Systems
Fast and Accurate Simulation of Manufactured Parts with Defects
Fast and Accurate Simulation of Manufactured Parts with Defects

Unwanted porosity is typical to many manufacturing processes — from traditional casting to additive manufacturing (3D printing) — and is difficult to avoid entirely....

Fast and Accurate Simulation of Manufactured Parts with Defects