نتایج جستجو برای: تصاویر ikonos

تعداد نتایج: 16121  

Journal: :Pamukkale University Journal of Engineering Sciences 2019

Journal: :سنجش از دور و gis ایران 0
محسن قلوبی دانشگاه خواجه نصیرالدین طوسی محمدجواد ولدان زوج دانشگاه خواجه نصیرالدین طوسی مهدی مختارزاده دانشگاه خواجه نصیرالدین طوسی

land cover information is one of the most important prerequisite in urban management system. in this way remote sensing, as the most economic technology, is mainly used to produce land cover maps. considering the complicated and dense urban areas in third world countries, object based approaches are suggested as an effective image processing technique. the purpose of this paper are the introduc...

2008
Chengquan Huang Kuan Song Sunghee Kim John R.G. Townshend Paul Davis Jeffrey G. Masek Samuel N. Goward

An automated method was developed for mapping forest cover change using satellite remote sensing data sets. This multi-temporal classification method consists of a training data automation (TDA) procedure and uses the advanced support vector machines (SVM) algorithm. The TDA procedure automatically generates training data using input satellite images and existing land cover products. The derive...

2005
Renaud Mathieu Jagannath Aryal

The management of vegetated areas by urban planners relies on detailed and updated knowledge of their nature and distribution. Manual photo-interpretation of aerial photographs is efficient, but is time consuming. Image segmentation and object-oriented classifications provide a tool to automatically delineate and label vegetation units. Object-oriented techniques were tested with a very high-re...

2004
H. Topan

The information contents of high resolution space images, usable for mapping, are not only depending upon the image resolution that means in case of digital data, depending upon the pixel size in the object space. Important is also the contrast, the spectral range, radiometric resolution and colour beside the atmospheric condition and the object contrast. From the area of Zonguldak, Turkey diff...

2002
C. J. van der Sande S. M. de Jong

Various regions in Europe have suffered from severe flooding over the last decennium. Earth observation techniques can contribute toward more accurate flood hazard modelling and they can be used to assess damage to residential properties, infrastructure and agricultural crops. For this study, detailed land cover maps were created by using IKONOS-2 high spatial resolution satellite imagery. The ...

2006
S. Kocaman L. Zhang A. Gruen D. Poli

High-resolution satellite images having a footprint smaller than 5 m are becoming increasingly available. A large number of the high resolution satellite sensors acquire imagery in a pushbroom mode with CCD linear array technology. The need for accurate 3D object reconstruction requires a sophisticated camera model, being able to deal with such sensor geometry. The software package SAT-PP (Sate...

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