Computing depth maps from descent imagery
This paper addresses the generation depth maps from the descent images.
descent imagery motion estimate depth recovery pla↗
Engineering topics
Olson, C.
Publications and source records attributed to Olson, C..
Multi-resolution mapping using surface, descent and orbit images
Our objective is to produce high-accuracy maps of the terrain elevation at landing sites on planetary bodies through the use of all available image data. These technologies are important for performing rover navigation in future space missions and the maps provide a tool for coordinating rovers in a robotic colony.
localization↗
Real-Time Object Recognition in Color Imagery
Military test ranges containing unexploded ordnance due to live-fire testing and training exercises are a significant safety problem in many locations.
object recognition color imagery unexploded ordnan↗
Maxium-Likelihood Template Matching
In image matching applications such as tracking and stereo matching, it is common to use the sum-of-squared-differences (SSD) measure to determine the best match for an image template.
maximum-likeihood estimation template matching obj↗
Robust Stereo Ego-Motion for Long Distance Navigation
Several methods for computing observer motion from monocular and stereo image sequences have been proposed.
ego-motion↗
Landmark Selection for Terrain Matching
We describe techniques to optimally select landmarks in order to perform mobile robot localization in matching terrain maps.
mobile↗
A General Method for Geometric Feature Matching and Model Extraction
Popular algorithms for feature matching and model extraction fall into two broad categories, generate-and-test and Hough transform variations.
computer vision geometric feature matching model e↗
Long Range Navigation For Mars Rovers Using Sensor-Based Path Planning and Visual Localisation
The Mars Pathfinder mission illustrated the benefits of including a mobile robotic explorer on a plantary mission.
Mars↗
Subpixel Localization and Uncertainty Estimation Using Occupancy Grids
We describe techniques for performing mobile robot localization using occupancy grids that enable both subpixel localization to be performed and uncertainty estimates to be computed.
Mobile↗
Enhanced Mars Rover Navigation Techniques
Robust navigation through rocky terrain by small mobile robots is important for maximizing science return from upcoming missions to Mars.
rovers↗
Probabilistic Self-Localization for Mobile Robots
Localization is a critical issue in mobile robotics.
Mobile robot localization maximum-likelihood estim↗
Adaptive Filtering and Edge Detection Using Range Data
It is typical in edge and corner detection applications to examine a single scale or to consider some space of scales in the image without knowing which scale is appropriate for each location in the image.
Image smoothing edge detection stereoscopy filteri↗
Variable-Scale Smoothing and Edge Detection Guided by Stereoscopy
The edges that are detected are thus at the same scale in the world, rather than at the same scale in the image.
Variable-Scale Edge Detection Stereoscopy↗
A Color Stereo Image Set for Evaluation of Ordnance Recognition Algorithms
This report describes a dataset of color, stereo images of ordnance collected at a live-fire test range near Nellis Air Force Base.
Algorithms Color Stereo Image Set↗
Advanced thin film thermocouples
The fabrication, materials characterization, and performance of thin film platinum rhodium thermocouples on gas turbine alloys was investigated. The materials chosen for the study were the turbine blade alloy systems MAR M200+Hf with NiCoCrAlY and FeCrAlY coatings, and vane alloy systems MAR M509 with FeCrAlY. Research was focussed on making improvements in the problem areas of coating substrate stability, adhesion, and insulation reliability and durability. Diffusion profiles between the substrate and coating with and without barrier coatings of Al2O3 are reported. The relationships between fabrication parameters of thermal oxidation and sputtering of the insulator and its characterization and performance are described. The best thin film thermocouples were fabricated with the NiCoCrAlY coatings which were thermally oxidized and sputter coated with Al2O3.
Kreider, K. G.↗
Array automated assembly task low cost silicon solar array project, phase 2
Analyses of solar cell and module process steps for throughput rate, cost effectiveness, and reproductibility are reported. In addition to the concentration on cell and module processing sequences, an investigation was made into the capability of using microwave energy in the diffusion, sintering, and thick film firing steps of cell processing. Although the entire process sequence was integrated, the steps are treated individually with test and experimental data, conclusions, and recommendations.
Olson, C.↗
Cost effective, high throughput, junction formation techniques using spray-on dopants
Explore the source record for details and available documents.
Chitre, S. R.↗
A low-cost photovoltaic cell process based on thick film techniques
The low-cost, easily automated processing for solar cell fabrication being developed at Spectrolab for the DOE LSA program is described. These processes include plasma-etching, spray-on diffusion sources and antireflective coating, thick film metallization, aluminum back contacts, laser scribing and ultrasonic soldering. The process sequence has been shown to produce solar cells having 15% conversion efficiency at AM1 which meet the cell fabrication budget required for the DOE 1986 cost goal of $0.70 per peak watt in 1980.
Mardesich, N.↗