Final report, topography from shading and stereo contract number, NAS5-31352

Cover of: Final report, topography from shading and stereo |

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .

Written in English

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Subjects:

  • Computer vision.,
  • Photogelogy.,
  • Photomapping.,
  • Planetary mapping.,
  • Stereophotography.,
  • Topgraphy.

Edition Notes

Book details

Other titlesTopography from shading and stereo.
Statement[by B.K.P. Horn and M. Caplinger].
SeriesNASA contractor report -- NASA CR-189389.
ContributionsCaplinger, M., United States. National Aeronautics and Space Administration.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL15408573M

Download Final report, topography from shading and stereo

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that combines the computer vision methods of shape-from-shading and stereo in different ways. The algorithms are closely coupled and take into account all the constraints of the photo-topography problem.

One such algorithm, the z-only algorithm, can accurately and robustly estimate the height of a surface from two given images. Results of running the. Topography from shading and stereo.

Kno wledge of the topography can b e used to. estimate the nature of the flow (that is, turbulent or laminar) and the. nature of material b eing carried b.

Topography from shading and stereo. By Berthold P. Horn and Michael Caplinger. Abstract. Methods exploiting photometric information in images that have been developed in machine vision can be applied to planetary imagery.

Present techniques, however, focus on one visual cue, such as shading or binocular stereo, and produce results that are Author: Berthold P. Horn and Michael Caplinger. shape from shading and photometric stereo) and the retrographic sensor of Johnson and Adelson to measure an object’s three dimensional surface topography.

The retrographic sensor is a block of clear elastomer with a thin layer of elastic paint on one side. When an object is pressed into the elastomer. The course is an introduction to 2D and 3D computer vision. Topics include: cameras models, geometry of multiple views; shape reconstruction methods from visual cues: stereo, shading, shadows, contours; low-level image processing methodologies (feature detection and description) and mid-level vision techniques (segmentation and clustering); high-level vision problems: object detection, image.

The new scheme can find an exact solution of a given shape-from-shading problem even though a regularizing term is included. The reason is that the penalty term is needed only to stabilize the iterative scheme when it is far from the correct solution; it can Cited by: topographic features may be grouped in two classes: First, those on small scales, say 10 or more miles to an inch, which may be prop­ erly called geographic maps and which are usually compiled fromCited by: 5.

Landscape Research Centre report number Site 3 Summary The Landscape Research Centre Ltd (LRC) carried out a fluxgate gradiometer, resistivity and topographic survey on behalf of the Friends of St Andrews Church, Weaverthorpe as a component of a Leader project (part of the Coast, Wolds, Wetlands & Waterways programme).File Size: 1MB.

Request PDF | Planetare Fernerkundung | Dieser Beitrag beschäftigt sich mit planetarer Fernerkundung, d. mit der Fernerkundung des Erdmondes, der Planeten, deren Monden, sowie anderen.

For centuries, however, the only planetary topographic data were those of lunar peaks and craters. In the last few decades, several independent techniques have been developed to extract topographic information from diverse types of planetary datasets, which provide key information for the distinction and geologic interpretation of surface : Henrik Hargitai, Konrad Willner, Manfred Buchroithner.

Library of Congress Control Number Language English Description Features a color landform atlas of the United States, organized by state, with shaded relief maps, jurisdictional maps, satellite images, and links to external sites providing geographic information.

topographic mapping for the 21st century: final report. Highly Accurate Satellite Topographic Mapping Accuracy Study A PhotoSat 50 cm Elevation Grid, produced from the new 30 cm resolution DigitalGlobe WorldView-3 Stereo Satellite Photos, is accurate to better than 15 cm RMSE, as determined by direct comparison to a highly accurate LiDAR Elevation Size: 1MB.

Photometric stereo, also called shape from shading, involves the decoding of shadow patterns on surfaces cast by multiple light sources to produce a surface topography measurement.

Depending on the number and directions of the light sources, this method can have different manifestations [ 40, 41 ].Cited by:   Topography. Land topography is a digital image of the three-dimensional structure of the Earth's surface.

Shading indicates changes in slope or elevation. The relief shading in this topographic map comes mostly from elevation data collected by space-based radars.

A radar in space sends a pulse of radio waves toward the earth and measures the strength and length of time it takes a signal to. 05/09/ TA Office hours to collect/check final exams (All in Clark ): Friday, 05/09/ 2 p.m. to 5 p.m.

Monday, 05/12/ 2 p.m. to 4 p.m. 05/09/ A solution to the final can be found HERE. Please have a look at it before coming to contest your marks for the final.

“The topography of literature, the fact in fiction,is one of my pleasures -- I mean, where the living road enters the pages of a book, and you are able to stroll along both the real and imagined road.” ― Paul Theroux, Ghost Train to the Eastern Star.

Topographic Profiles •Generating profiles: •Draw a line between the two points bounding the desired profile area. •Place a folded sheet of paper along the line.

•Mark each contour line intersecting the paper. •From each mark, indicate the vertical height with a dot on a File Size: 2MB. TOPOGRAPHIC SURVEYING 1. INTRODUCTION From the hydrographic point of view a Topographic Survey consists of a series of tasks carried out with the aim of determining the composition of those parts of the earth’s surface which emerge from the water.

and provides the ability to control lighting, viewing, and shading. Data volumes can be sliced and the cross-sections displayed using 2-D graphics options.

ELVIS provides a number of visualization methods including: • 3-D topographic surfaces where data fields and topographic. dependent on local topography (the topographic informa-tion remains available, in a separate channel).

There are important implications of the differing topologies on radar-clinometry methods (shape from shading). RADARSAT imagery acquired over Switzerland is used to illustrate automated geocoding free of the need for manual tiepoint Size: 4MB.

Video shows what topography means. a precise description of a place. a detailed graphic representation of the surface features of a place or object. the features themselves (the terrain. topographic maps of the Survey.

Planimetric map. --A planimetric map is similar to a topographic map, except that it does not portray relief in a measurable form. The Survey publishes some planimetric maps for use until they can be replaced by topographic maps.

1 The number 1 B 3 signifies Book 1, Part B, Chapter 3 of theCited by: 1. Topography is the study of the shape and features of land topography of an area could refer to the surface shapes and features themselves, or a description (especially their depiction in maps).

Topography is a field of geoscience and planetary science and is concerned with local detail in general, including not only relief but also natural and artificial features, and even local.

This overview report (Book 1) must be used in conjunction with the Activity Area Reports (Books ) for implementation of the restoration program.

Topography, Surficial Geology and Geology Located on the Fraser Plateau, the topography of the study area is generally flat to gently rolling (approximate elevation ranging between m and.

In order to construct 3D topographic data, first of all, two-dimensional images were acquired using a specially designed set-up. After the images were calibrated radiometrically, photometric stereo method was applied. In order to minimize the low-frequency errors in the final Cited by: Another way to think of topographic maps is that they are a picture of the three-dimensional (3-D) structure of the surface of the Earth.

Flat maps can create a 3-D effect by making some parts of the map dark and other parts light. This is called "shading" because it makes features on the surface look like they are casting shadows.

In this case, topography refers not to mountains and valleys but to the parts of a bird. A basic knowledge of how birds are put together is incredibly useful in appreciating and identifying them. corneal topography. The terms corneal tomography and corneal topography are useful, because they will distinguish between the two different types of exami-nation, which will likely coexist and be complementary.

Topography can evaluate the tear fi lm, which is not examined by slit systems and provides useful informa-File Size: 93KB. Visualizing Topography With Space-Based Technology: Space-based technology is changing the way in which Earth is mapped.

Instruments and cameras flown on spacecraft or satellites can gather data and images of areas that have been difficult to map in the past. For example, remote areas of Earth, like rugged mountain chains and rocky deserts, are.

SHORT DESCRIPTION. The topography of the area is dominated by (a) a series of parallel, narrow, elongate ridges and intervening valleys that run N60E - S60W across the entire width of the central one-third of the region; and (b) the Susquehanna River, a mile-wide stream that flows in a curving path from the northern to the southern boundary of the map, cutting right across the mountains.

View Topography Research Papers on for free. topography, size of structures, etc. were included. (c) Terrain was classified into four categories based on characteristics of the ground surface irregularities.

(d) Force and pressure coefficients were included for a large range of clad and unclad buildings and for individual structural elements. (e) File Size: 2MB. Topography is the shape or configuration of the land, represented on a map by contour lines, hypsometric tints, and relief shading.

Center for Geographic Information; What you are referring to, i believe is Geomorphology (etymology: γη, ge, meaning Earth, and μορφή, morfé, meaning form).

Topography study guide by benjobb includes 40 questions covering vocabulary, terms and more. Quizlet flashcards, activities and games help you improve your grades. Recognising topographic features.

BY Eva /map reading. Shading and tinting Shaded relief can be used to emphasise features. Relief shading indicates changes in shape by a shadow effect achieved by tone and colour that results in the darkening of one side of terrain features such as hills and ridges.

The darker the shading, the steeper the. In this topography chapter it is all about location and the ‘Where?’question (Figure ). Traditionally the Earth’s topography is graphically rendered by topographic maps. Today these topographic maps are derived from data sets known variously as topographic framework data, geospatial core or foundation data (Groot and McLaughlin, ).

‘The surface topography of the silicified microbe is controlled by the size and distribution of the opal-A spheres.’ ‘A computer, programmed with the patient's refraction and corneal topography, controls the laser beam to precisely remove corneal tissue.’ ‘They use a surface topography conducive to generating new bone growth.’.

DESIGN THESIS DE-ADDICTION CENTER. TEJA AA SRI VENKATESHWARA COLLEGE OF ARCHITECT Madhapur, Hi-Tech City. @article{osti_, title = {Solar architecture: the direct gain approach}, author = {Johnson, T E}, abstractNote = {The ways in which early and recent buildings are heated directly by the sun are discussed, and background information is provided on solar availability, heat flow, glare, and daylighting.

Topography, site planning, and wind breaks in the design of a home with a passive solar. T he SpaceFusion project is funded by the French Research Agency within the programme "Jeunes Chercheurs " (grant JC05_); duration 40 months (Jan Apr 09), budget kEUR.

The goal is to perform multisource data fusion in astronomy and remote sensing. We use Bayesian inference to combine multiple images of the same area into a single, physically meaningful model.Hypsography concerns the land's elevation, altitude or height above sea-level or some other reference surface.

(Hypso is derived from the Greek Ύψος for height.)Topography concerns physical and cultural features of the land and so includes hypsography, hydrology, the built environment, major boundaries, communication channels, etc.

(Topo is derived from the Greek Τόπος for place.).As nouns the difference between topography and tomography is that topography is a precise description of a place while tomography is imaging by sections or sectioning.

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