High buildings have generally changed the morphology of cities in recent decades, and they a significant impact on multiple processes urban area. Building height is one criteria for land cover classification local climate zone delineation heat island modeling. The European Union’s Earth observation program Copernicus aims to achieve global, continuous, autonomous, high-quality, wide-range capac...

Accurately building height estimation from remote sensing imagery is an important and challenging task. However, the existing shadow-based methods have large errors due to complex environment in imagery. In this paper, we propose a multi-scene method based on shadow high resolution First, of classified described by analyzing features Second, variety models established different scenes. addition...

Human desires toward the heavens had been continued after Tower of Babel. Many high-rise buildings were constructed with technological progress in the 20 century. The tallest skyscraper of the world is Burj Khalifa (Dubai, UAE) with a height of 828 meters. Kingdom tower (Jeddah, KSA) would be tallest building with 1,000 meters about 2019 (1). Skyscrapers have lots of problems in terms of disast...

farmers in the indus basin, pakistan have generally switched to groundwater for additional water supplies due to the irregular supply of irrigation water; currently over 50% of the agricultural land in the basin is at least partially irrigated by tube-wells. these wells pump fresh groundwater, which essentially is the result of massive leakage from irrigation canals into the originally saltwate...

This paper presents a new segmentation technique for LIDAR point cloud data for automatic extraction of building roof planes. Using the ground height from a DEM (Digital Elevation Model), the raw LIDAR points are separated into two groups: ground and nonground points. The ground points are used to generate a ‘building mask’ in which the black areas represent the ground where there are no laser ...

Indoor parasitic cellular systems reuse the same frequencies as outdoor cellular (macrocellular) systems to provide wireless communications inside a building or campus. This paper provides a simulation strategy to determine future channel availability that is possible between in-building and outdoor cellular systems that share the same radio spectrum. Capacity that is currently available inside...