Nowadays, the availability of high-resolution images has increased the number of researches on urban land use and land cover classification. Most of them have used object oriented image analysis with successful results. Although object oriented analysis offers effective tools to represent the knowledge of the scene, the tasks of building semantic network and selecting attributes are time-consum...

With the improvement of remote sensing technology, the spatial, structural and texture information of land covers are present clearly in high resolution imagery, which enhances the ability of crop mapping. Since the satellite RapidEye was launched in 2009, high resolution multispectral imagery together with wide red edge band has been utilized in vegetation monitoring. Broad red edge band relat...

Information about green spaces available in a city is essential for urban planning. Urban green areas are generally assessed through environmental indicators that reflect the city’s quality of life and urban comfort. A methodology based on 3D measure and analysis of green urban areas at the city scale is presented. Two products are proposed: (1) measuring current vegetation cover at ground leve...

Wetlands are considered an integral part of the global ecosystem, the development of the remote sensing technology makes us obtain very abundant information of wetlands, especially with the appearance of high resolution satellite imagery which extends the visual field of the wetlands. The aim of this study is to explore the viability of applying high resolution satellite imagery for inland limn...

Welcome to the first edition of our new Object Interconnections column concerning distributed object computing (DOC) and C++. In this column, we will explore a wide range of topics related to DOC. Our goal is to de-mystify the terminology and dispel the hype surrounding DOC. In place of hype, we will focus on object-oriented principles, methods, and tools that are emerging to support DOC using ...

Digital interpretation of imagery produces descriptions of the earth’s surface, each description relying on the inherent resolution of the original image. Forest cover geographic information (GIS) files have been produced by interpretation of aerial photography. Common mapping scales in Canada for representing land information are 1:20,000 and 1:250,000. This paper discusses two methods to auto...

Steganography is the art and science of hiding or embedding data in a transmission medium. The goal of steganography is to hide an information message inside a harmless cover medium in such a way that it is not possible even to detect that there is a secret message. In this paper, the object oriented steganography is based on biometrics. Data is embedded into some regions of the skin and not to...

As geographers continue to place more emphasis on the temporal aspect of spatial patterns, there is a need for innovative display techniques to supplement static maps. Visualization software and methods have been developed to recreate natural landscapes, but little has been done to investigate the potential for illustrating land cover change using temporal data acquired from the real world. In ...

For 3-D building reconstructions of urban areas, we present a fully automatic shape recovery method that uses 3-D points acquired from aerial image sequences. This paper focuses on shape recovery of flat rooftops that are parallel to the ground. We recover each rooftop from a set of 3-D points located at nearly the same height. Such 3-D point sets are made by merging point sets under the MDL (M...

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