نتایج جستجو برای: 3d topography

تعداد نتایج: 215652  

2006
Yeong-Sun Song Hong-Gyoo Sohn Choung-Hwan Park

This paper describes an efficient 3-D positioning method of SAR image only using ephemeris data and a single control point. The proposed method is applied to RADARSAT-1 SGF images of which ephemeris information is not accurate enough to directly use for the dynamic geometric modeling. The RMSE of the 3-D model by using a single CP (Control Point) is 43.86m, while that of traditional method usin...

2010
S. Dalyot A. Gershkovich Y. Doytsher

Nationwide geospatial databases in general and topographic ones in particular are today one of the most common infrastructure for mapping and other geo-related tasks. These databases are designated to establish an adequate, continuous and if possible homogeneous representation of our natural environment. New data acquisition technologies, which present high accuracies and resolution levels that...

Journal: :Frontiers in Earth Science 2021

Measurements and models of global geophysical parameters such as potential fields, seismic velocity dynamic topography are well-represented traditional contoured and/or coloured maps. However, teaching aids for public engagement, they offer little impact. Modern 3D printing techniques help to visualise these other concepts that difficult grasp, the intangible structures in deep Earth. We have d...

2006
Friso Penninga Peter van Oosterom Baris M. Kazar

Topographic features such as physical objects become more complex due to increasing multiple land use. Increasing awareness of the importance of sustainable (urban) development leads to the need for 3D planning and analysis. As a result, topographic products need to be extended into the third dimension. In this paper, we developed a new topological 3D data model that relies on Poincaré algebra....

2006
Andrew R. Neureuther

A brief perspective is given initially on the goals, exposure methods, performance and challenges in the lithography process. The basic framework for simulating optical lithography is then presented using three important physical aspects: imaging, resist exposurebleaching and resist development etching. Image quality in both contact/proximity and projection printing are considered. The verifica...

2008
Denis Pitzalis Paolo Cignoni Michel Menu Genevieve Aitken

In this paper we present the result of the integration of multiple data sources of different 3D acquisition techniques. These acquisitions have been done in order to create a new way to document works of art that have been applied to the “Cylinder seal of Ibni-Sharrum”. X-ray tomography has been used to reveal the exact position of inclusions and the presence fissure in the mineral structure; o...

2015
Robert Moorhead Sam Russ Alan Wallcraft Richard Allard

The long–term goal is to allow ocean modelers to efficiently and rapidly visualize the output of their ocean models by effectively exploiting large scale computing environments. This necessitates a distributed, parallel, concurrent visualization system. The modeler should be able to seamlessly view and explore an evolving ocean model in an immersive virtual environment containing boundary condi...

2004
Eytan Barouch Brian Bradie Uwe Hollerbach George Karniadakis Steven Orszag

A comprehensive three-dimensional simulation model for non-planar substrate lithography is presented. Matching substrate as well as standing wave effects are examined. The projection printing is simulated using Hopkins' results and the exposure model is solved using spectral element discretizations of the nonlinear wave equation coupled with the rate equation for the photoactive compound concen...

2010
T. Shinoe J. Shi Y. Chen A. Triller

Optimal formation of neuronal networks and synapses are essential for accomplishing higher brain functions. Extracellular molecules and nano-structures are considered to play important roles for in vitro studies of neuronal patterns. By using microcontact printing (μCP) and microchannel techniques, we found that neurons extended their neurites on μCP-defined biochemical patterns, whereas axons ...

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