نتایج جستجو برای: dense range almostmultiplicative maps

تعداد نتایج: 822928  

1999
Carl Eberhart J. B. Fugate Shannon Schumann

We i n vestigate the set of open maps from one Knaster continuum to another. A structure theorem for the semigroup of open induced maps on a Knaster continuum is obtained. Homeomorphisms w h i c h are not induced are constructed, and it is shown that the induced open maps are dense in the space of open maps between two Knaster continua. Results about the structure of the semigroup of open maps ...

Journal: :Science 1999
S J O'Brien M Menotti-Raymond W J Murphy W G Nash J Wienberg R Stanyon N G Copeland N A Jenkins J E Womack J A Marshall Graves

Dense genetic maps of human, mouse, and rat genomes that are based on coding genes and on microsatellite and single-nucleotide polymorphism markers have been complemented by precise gene homolog alignment with moderate-resolution maps of livestock, companion animals, and additional mammal species. Comparative genetic assessment expands the utility of these maps in gene discovery, in functional ...

1998
Reinhard Koch Marc Pollefeys Luc Van Gool

In this paper the problem of obtaining 3D models from image sequences is addressed. The proposed method deals with uncalibrated monocular image sequences. No prior knowledge about the scene or about the camera is necessary to build the 3D models. The only assumptions are the rigidity of the scene objects and opaque object surfaces. The modeling system uses a 3-step approach. First, the camera p...

Journal: :international journal of agricultural management and development 0
khadijeh abolfathi m.sc. student in assessment and land use planning, natural resources and environmental engineering department, faculty of agricultural science, payame noor university (pnu), tehran, iran marzieh alikhah-asl assistant professor, natural resources and environmental engineering, faculty of agricultural science, payame noor university (pnu), tehran, iran mohammad rezvani assistant professor, natural resources and environmental engineering, faculty of agricultural science, payame noor university (pnu), tehran, iran mohammad namdar forest, rangeland and watershed management organization, tehran, iran

the growing population and increasing socio-economic necessities creates a pressure on land use/land cover. nowadays, land use change detection using remote sensing data provides quantitative and timely information for management and evaluation of natural resources. this study investigates the land use changes in part of hableh rood watershed of iran using landsat 7 and 8 (sensor etm+ and oli) ...

2007
Nicolas Papadakis Patrick Héas Étienne Mémin

The complexity of dynamical laws governing 3D atmospheric flows associated to incomplete and noisy observations makes very difficult the recovery of atmospheric dynamics from satellite images sequences. In this paper, we face the challenging problem of joint estimation of timeconsistent horizontal motion fields and pressure maps at various atmospheric depths. Based on a vertical decomposition o...

2008
Alexander Blokh

We study C2-structural stability of interval maps with negative Schwarzian. It turns out that for a dense set of maps critical points either have trajectories attracted to attracting periodic orbits or are persistently recurrent. It follows that for any structurally stable unimodal map the ω-limit set of the critical point is minimal.

2006
Luz Abril Torres-Méndez Gregory Dudek

In mobile robotics, the inference of the 3D layout of largescale indoor environments is a critical problem for achieving exploration and navigation tasks. This article presents a framework for building a 3D model of an indoor environment from partial data using a mobile robot. The modeling of a large-scale environment involves the acquisition of a huge amount of range data to extract the geomet...

2010
Sandino Morales Reinhard Klette

Current stereo algorithms are capable to calculate accurate (as defined, e.g., by needs in vision-based driver assistance) dense disparity maps in real time. They have become the source of three-dimensional data for several indoor and outdoor applications. However, ground truthbased evaluation of such algorithms has been typically limited to data sets generated indoors in laboratories. In this ...

1992
José Santos-Victor João Sentieiro

This paper presents a dynamic 3D Vision system that is able to estimate dense depth maps from an image sequence. The depth maps computed at each time instant are used in an Extended Kalman filtering structure, that integrates all depth measurements over time, reducing uncertainty. Results with images acquired by an underwater camera, are presented.

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