نتایج جستجو برای: change detection of urban landscape requires multi
تعداد نتایج: 21349278 فیلتر نتایج به سال:
The origin of the concept of using contextual information of Correlation in neighborhood of a pixel for change detection is the simple geo-statistical fact that the same geographical area (neighborhood window) on two dates of imagery will tend to be highly correlated if no or little change has occurred and uncorrelated when change occurs. The main objective of this study is to investigate the u...
This study intends to identify both general trends and subtle patterns of urban land changes of the past three decades in metropolitan Kansas City area. Landsat images were used to generate time series of land cover data from the early 1970s to the early 2000s. Based on remotely sensed land cover data, landscape metrics were calculated. Both the remotely sensed data and landscape metrics were u...
Change detection from satellite images based on optimal asymmetric thresholding the difference image
As a process to detect changes in land cover by using multi-temporal satellite images, change detection is one of the practical subjects in field of remote sensing. Any progress on this issue increase the accuracy of results as well as facilitating and accelerating the analysis of multi-temporal data and reducing the cost of producing geospatial information. In this study, an unsupervised chang...
urban design and landscape architecture are considered as modern art (knowledge) which are developed through integration of various art and science fields of studies. formal emergence of urban design in 60s and landscape design is occurred at the beginning of 20th century. the success of these two fields is because of their attention to environmental qualities upgrade in public and open spac...
this paper offers a report about the professional workshop of researching tehran which was held in august 2015 in tehran along with the fourth and fifth conference on urban landscape phenomenology. in this regard denis delbaere and frédéric poussin, experts on landscape and territorial planning, and professors of universities in france, explained their first impressions of tehran in their first...
The goal of this work is to monitor urban growth and the drivers of urban expansion in Chengdu, China. Between 1978 and 2002, the municipal population increased from 8 to 10.2 million and GDP grew seven-fold, changes which have had profound impacts on land cover. To address these issues, this research involves two tasks. First, we monitor land cover change using a supervised, multi-date decisio...
in this study, a simple, rapid and selective method was developed for the determination of dexamethasone. the proposed method is based on inhibitory effect of dexamethasone on the oxidation of orange-g by bromate in sulfuric acid media. the reaction was followed spectrophotometrically at 478.5 nm (?max). under optimum experimental conditions, (72.6 ?mol l-1 of orange-g, 0.76 mol l-1 of h2so4, 0...
in recent years, the issue of energy consumption modeling techniques in the building sector has been widely considered by researchers and managers. researches indicate that energy consumption in residential sector is one of the main parts of the total consumption. moreover, the urban residence is supposed as a significant consumer of energy in every country and therefore a focus for energy cons...
Sustainable designs like low-carbon landscapes are key to lowering the anthropogenic carbon footprint of our society and promoting harmony with natural ecosystems. We can design low-carbon landscapes for terrestrial (e.g. forests and urban farming areas) as well as aquatic (e.g. urban streams, ponds, and wetlands) urban spaces. Ecological interactions between water and soil in an urban ecosyste...
The city is alive with dynamic systems, where parks and urban green spaces have high strategic importance which help to improve living conditions. Urban parks are used as visual landscape with so many benefits such as reducing stress, reducing air pollution and producing oxygen, creating opportunities for people to participate in physical activities, optimal environment for children and decreas...
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