Imaging

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

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Briefs: Photonics/Optics
Invertible Time Invariant Linear Filtering (InTILF) Method for Pattern Detection and Modeling of Stochastic One- or Two- Dimensional Data
X-ray astronomy offers the opportunity to observe important phenomena, including the early accretion of massive black holes and detecting diffuse ionized intergalactic gas that is heated to X-ray temperatures...
Briefs: Photonics/Optics
High-performance thermal imagers like Mars Climate Sounder (MCS) on the Mars Reconnaissance Orbiter (MRO) and the Diviner Lunar Radiometer Experiment on the Lunar...
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Briefs: Imaging
Characterizing Richness of Previously Unmapped Terrain and Estimating its Impact on Navigation Performance using 3D Range Sensors in Flight
Landers to large planetary bodies such as Mars typically use a secondary reconnaissance spacecraft to generate high-fidelity 3D terrain maps that are subsequently used for landing site selection and creating...
Briefs: Photonics/Optics
Photogrammetric-Based Pose Initialization and Propagation for Inertial Navigation Systems
The purpose of the Pose Initialization and Propagation (PIP) system is to provide an absolute navigational solution (position, velocity, and attitude) to a moving vehicle without using GPS. This was developed as a navigation system for rocket launches in a...
Briefs: Photonics/Optics
The Adélie penguin has a circum-Antarctic distribution and is widely considered a useful indicator of status and change in the Antarctic and Southern Ocean ecosystems....
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Briefs: Photonics/Optics
3D Imaging Technology and System
All current cameras and imaging systems have the same classical problem in practical applications. To complete the observation task, a large amount of data is captured, processed, and transmitted; then most of the data is discarded because it is not essential for the given observation task. The problem comes from...
Briefs: Imaging
Tunable laser absorption spectrometer (TLAS) sensors enable gas monitoring with high accuracy and gas specificity, and can be optimized for continuous,...
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Briefs: Imaging
Virtual Windows to Supplement Conventional Spacecraft Windows
Legacy NASA spacecraft windows suffer from specialized costs and operational constraints associated with embedding optically transparent apertures within structures that are designed to maximize strength, safety, and environmental integrity. A new approach to the legacy window solution...
Briefs: Photonics/Optics
All imaging systems from space are affected by disturbances originating in the spacecraft in the form of mechanical noise from thruster and reaction/momentum wheels, and sensor noise. A...
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Briefs: Photonics/Optics
Optical Correlation Receiver
Precise distance, time, and pulse width measurements are required for many areas of science and engineering. Time-of-flight methods are often used to measure remote distances. Optical signals are attractive because the small wavelength allows small transmit and receive telescopes. Short pulsed lasers are attractive...
Briefs: Photonics/Optics
The mercury linear ion trap frequency standard (LITS) at JPL has been demonstrated to have multiple potential applications in NASA deep space missions. An increase of the...
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Briefs: Imaging
Exploration Visualization Environment
The Exploration Visualization Environment (EVE) is a simulation, visualization, and analysis system designed to integrate engineering data with a virtual environment in support of the design and planning of space-based missions. Through the integration of time-dependent data with detailed graphical models...
Briefs: Photonics/Optics
SCaN Optical Link Assessment Tool Version 2
In response to the requirements of the Space-Based Relay Study (SBRS) undertaken by NASA in 2013, as well as the Integrated Radio and Optical Communications (iROC) project being conducted by NASA Glenn Research Center (GRC) beginning in 2012, a calculation procedure was required to rapidly assess the...
Briefs: Medical
Ultrasound Competence Test Metrics
Diagnostic medical ultrasound requires psychomotor skill in image acquisition and cognitive skill in image interpretation. There is a lack of an objective, quantitative, and standardized method to assess psychomotor skill. In traditional radiology and cardiology training programs, physicians are certified based on...
Briefs: Imaging
Thermal Cycle Qualification of Radiated Solar Arrays for 50 to 133 K Temperatures in Vacuum
Solar arrays (radiated or non-radiated) and other technologies are candidate materials for projects in JPL. Some of the projects need to qualify these potential technologies to cryogenic extreme temperatures (from 133 to 50 K or lower). Those technologies...
Briefs: Imaging
Downhole Regolith Interrogation with Helium-Assisted Drill and Laser Induced Breakdown Spectroscopy
It is of great interest to the scientific community to have the ability to analyze drilled boreholes in situ on the surfaces of the Moon and Mars. The goal of this work was to design and fabricate a Downhole Regolith Interrogation with...
Briefs: Photonics/Optics
Optical indexing wheels, sometimes called “filter wheels,” are used to locate various optics or filters in a beam path to change the observational mode. Large wheels a half-meter in size or...
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Briefs: Photonics/Optics
Hermetic Phototube Housing
This innovation is a hermetically sealed case or very small chamber. A photomultiplier tube (PMT) is mounted inside the chamber. The circuit board is also installed inside the chamber with appropriate feedthroughs for signals. An adapter/floating mount called the phototube to light pipe system mount (PLPSM) allows the...
Briefs: Photonics/Optics
Design, Fabrication, and Test of WFIRST/AFTA GRISM Assembly
This work originated with the Wide Field InfraRed Survey Telescope (WFIRST) slitless spectrometer design (GRISM assembly), which attempted to follow the Hubble Space Telescope (HST) method of employing a singleelement GRISM as a slitless spectroscope. However, WFIRST’s field of view...
Briefs: Imaging
Wide-Spectrum Organic Mass Spectrometer Using Far-Ultraviolet Ionization
Two-step laser desorption/photoionization mass spectrometry (L2MS) represents a powerful tool for the organic analysis of astromaterials. The technique has high sensitivity and requires little to no sample preparation.
Briefs: Imaging
Web-Based Search Service to Support Imaging Spectrometer Instrument Operations
Imaging spectrometers yield rich and informative data products, but interpreting them demands time and expertise. There is a continual need for new algorithms and methods for rapid firstdraft analyses to assist analysts during instrument operations. Intelligent data...
Briefs: Imaging
Spinal Ultrasound Just-in-Time Training Tool
Back pain and injury are recognized risks that can affect the well-being and performance of crewmembers during missions, as well as their long-term health. Spine elongation is a documented effect of microgravity, back pain is a common occurrence in early flight, and the post-flight incidence of spinal...
Briefs: Imaging
Stereoscopic Planar Laser-Induced Fluorescence Imaging for Time-Resolved 3D Movies in Hypersonic Flow
Understanding and predicting transition from laminar to turbulent flow in hypersonic boundary layers is an active and important field of research because transitional and turbulent heating can be four or more times higher than laminar heating on...
Briefs: Imaging
Modified-Wolter-Schwarzschild X-ray Telescope
X-ray survey missions require nested grazing incidence telescopes with a large field of view (1° or larger) and moderately high resolution across the field of view. This cannot be accomplished using flat focal plane detectors. The telescopes have excellent on-axis resolution, but unacceptable...
Briefs: Imaging
Solar Doppler Shift-Based Solar Tracker
This solar tracker integrates a camera with a field of view (FOV) large enough to easily image the entire solar disc — co-boresited with a narrow-band spectrometer that measures the frequency of a Doppler shifted line — with an algorithm designed to drive zero Doppler shift rotation axis of the Sun.
Briefs: Imaging
Machine Vision-Based Pose Estimation System
During on-orbit servicing of non-cooperative satellites, the relative position of the satellite with respect to the servicing vehicle is needed. Non-cooperative satellites do not have devices to assist the pose estimation (such as markers or reflector), so a system that uses the natural features of the...
Briefs: Imaging
Taking measurements in a scramjet engine is particularly challenging because of the harsh testing environment. Any probe inserted in the flow would generate shock waves, strongly...
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Briefs: Imaging
Image Processing Software Environment (QuIP)
The QuIP interpreter is a software environment for QUick Image Processing that features an interactive scripting language designed to facilitate use by non-expert users through features such as context-sensitive automatic response completion. The package includes a number of script packages that...
Briefs: Imaging
NASA Vision Workbench (VWB)
VWB is a modular, extensible computer vision framework that supports tasks including automated science and engineering analysis, large satellite image processing, and 2D/3D environment reconstruction. The framework provides a rapid C++ development environment as well as a flexible, multi-platform system to deploy...

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