نتایج جستجو برای: urban image

تعداد نتایج: 542765  

2002
Qingming Zhan Martien Molenaar Klaus Tempfli

Remote sensing in urban areas has been a challenger for quite some time due to their complexity and fragment with combination of man-made features and natural features. High-resolution satellite images and airborne laser altimetry data offered potential possibilities for feature extraction and spatial modelling in urban areas. Land use classification of urban areas may become possible by exploi...

2011
A G Ananth

Fractal image coding has the advantage of higher compression ratio, but is a lossy compression scheme. The encoding procedure consists of dividing the image into range blocks and domain blocks and then it takes a range block and matches it with the domain block. The image is encoded by partitioning the domain block and using Affine transformation to achieve fractal compression. The image is rec...

2016
S. S. AKAY E. SERTEL

Urban land cover/use changes like urbanization and urban sprawl have been impacting the urban ecosystems significantly therefore determination of urban land cover/use changes is an important task to understand trends and status of urban ecosystems, to support urban planning and to aid decision-making for urban-based projects. High resolution satellite images could be used to accurately, periodi...

2003
Carlo Ratti Paul Richens

A new paradigm for investigating the environment consequences of urban texture is proposed. Using raster-based models and software algorithms derived from image processing the authors develop efficient methods of measuring geometric parameters and predicting radiation exchange. The possibilities of generating synthetic urban textures and of integrating cellular automata are explored. Results su...

Three-dimensional classification of urban features is one of the important tools for urban management and the basis of many analyzes in photogrammetry and remote sensing. Therefore, it is applied in many applications such as planning, urban management and disaster management. In this study, dense point clouds extracted from dense image matching is applied for classification in urban areas. Appl...

Esmaeili, Mozhgan , Pedram, Behnam , Talebian, Mohammad Hassan ,

Since urban spaces are the focal point of the inhabitants of the earth, they can be considered the most appropriate area of manifestation of human culture, social communication and the history of nations, but today what is happening in Iranian cities is a departure from the rich cultural and ancient values of the inhabitants of this land and by a deeper look "reversal of the art of the times". ...

2005
Itzhak Omer Ran Goldblatt

This paper aims to evaluate what effect applying residents’ urban image to virtual city design (a real time virtual model of an actual city) has on wayfinding performance during ‘flying-based’ navigation mode. Two experiments were conducted to compare two virtual city designs using the virtual model of Tel Aviv city. One design included highlighted urban elements from the residents’ urban image...

2005
Soojeong Myeong David J. Nowak Michael J. Duggin

Quantifying the carbon storage, distribution, and change of urban trees is vital to understanding the role of vegetation in the urban environment. At present, this is mostly achieved through ground study. This paper presents a method based on the satellite image time series, which can save time and money and greatly speed the process of urban forest carbon storage mapping, and possibly of regio...

Journal: :Remote Sensing 2017
Monika Kuffer Karin Pfeffer Richard Sliuzas Isa Baud Martin van Maarseveen

Many cities in the Global South are facing rapid population and slum growth, but lack detailed information to target these issues. Frequently, municipal datasets on such areas do not keep up with such dynamics, with data that are incomplete, inconsistent, and outdated. Aggregated census-based statistics refer to large and heterogeneous areas, hiding internal spatial differences. In recent years...

2010
Wen Liu Fumio Yamazaki

Monitoring urban growth and change is an important issue for urban planning and disaster management. In this study, two different approaches are conducted to monitor the urban areas. One is that a TerraSAR-X image is compared with an ALOS/PALSAR image to investigate the characteristics of urban land cover in different radar wavelengths. Also, a very high resolution optical QuickBird image is us...

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