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The hyperspectral data can identify the complicated urban surface features which can't be identified using the multispectral data because of their lots of continuous bands in a narrow band width. The goal of this paper was to perform the urban surface features identification based on airborne Pushbroom Hyperspectral Imager (PHI) data. At first, some preprocessing of PHI data from original data, such...
This paper proposes a new method of automatic registration of urban remote sensing images that has combined bilinear interpolation which is a classic method of image registration and road networks which are the characters of urban remote sensing images. It comprises of extracting the road network in an urban and computing the Ground Control Points (GCP) from the road junctions, then estimating the...
Accurate positioning is an important issue to enhance the reality and immersion of 3D urban navigation. The most common positioning technology is GPS, but it can't provide a continuous and accurate solution in dense urban canyons and indoor environments due to signal blockage, interference, or jamming, etc. This paper proposes an integrated GPS and multisensor pedestrian positioning system to bridge...
This paper presents a novel architecture-extraction method in urban green space based on high resolution remote sensing imagery. The method introduces the knowledge of architecture features into extraction process and makes full use of spectral and textural characteristics, thus successfully discriminates spectrally similar architectures from green space and solves the problem of inaccurate statistics...
In the PSR(pressure - state - response) model framework, constructing ecological security evaluation system of the mining area, basing on artificial neural network model, selecting RS data of TM, SPOT-5, IKONOS as well as natural ecological environment data and socio-economic data, this study carried out the research on ecological security evaluation in Panxi mining concentrated areas. The results...
Compared with the traditional method of water quality management, using remote sensing technology in monitoring the water quality has a wider application perspective. For a water body of large scale, the Moderate resolution Imaging Spectroradiometer (MODIS) is more appropriate data for its high temporal resolution for timely and dynamic monitoring, moderate spatial resolution and no charge for acquiring...
In conventional researches, satisfying results cannot be achieved when directly applying Mean Shift segmentation onto high spatial resolution (HR) remote sensing image. The proposed method addresses this problem and extents Mean Shift clustering algorithm into high-dimensional feature space by extracting texture and shape descriptor. The dilemma in image segmentation is that the algorithms with good...
This paper proposed a technique for integration of 3S (GIS, RS and GPS) in urban real estate dynamic monitoring within a mobile environment. The framework of the technique includes two major parts: one is the change detection of buildings from high resolution satellite images, the other one is the dynamic monitoring based on 3S integration within a mobile GIS environment. The processing methods of...
The German radar satellite TerraSAR-X was launched in June 2007. It is one of the first satellites to continuously provide space-borne high resolution radar imagery with a slant range resolution in the order of 0.6 m times 1.1 m for civil applications. The sensor, the mission design, the orbit concept, and the SAR processor (TMSP) perfectly support interferometric applications. Naturally, DLR's operational...
Spectral mixture analysis has been used in monitoring surface compositions of urban areas in recent years. Many of those urban researches select inland cities on flat plain as study areas, meanwhile water is masked off before unmixing, to acquire acceptable results and conform to the conceptual model of urban composition named V-I-S. This paper took Xiamen as an example of mountainous coastal cities,...
Zigui county is in the east of the reservoir area of the Three Gorges Project, where the Three Gorge Dam is located. Strong human activities and policy impact result in the type and structure of land cover have changed in great degree. Meanwhile, the characteristics of surface features in Zigui are very complicated because of fragmented surface condition and hilly topography. Thus, it is meaningful...
3D modeling techniques have less been established and are still being studied theoretically without explicit implementations. Currently used 3D models, which are primarily focused on visualization and lack topological structure, have limitation in being used for 3D spatial analyses and applications. Through storing 3D objects in a spatial DBMS, we can construct topology-based models and use them for...
In this study, we are going to focus on the exploration of color based features on labeling remote sensing images. The common widely used color descriptors are based on color histogram or Gaussian Mixture Models. However, the problem of these methods is to lack of the spatial layout information. We propose a new color description and matching approach, which allows to relax the assumption of independence...
In the past thousands of years, the Grand Canal not only promoted political, economic and cultural development in China, but also formed the pattern of cities which lie along the canal called ldquoCanal Citiesrdquo. To comprehend the relationship between the city and the canal can benefit the urban planning and development. Remote Sensing and Geographical Information System technology enable us to...
Change information is a kind important signal in the remote sensing image, and automatically detecting it has become important field of intelligent interpreting the Remote Sensing Image. Guided by the theory of neighboring correlation and decision tree and based on the object-oriented technique, we propose a method that can detect the change information of two kinds of high remote sensing images that...
Extracting water body information with SAR images is distinctive and important. Especially for high-resolution SAR images, it's hard to extract water accurately because of Speckle Noises, so a Gabor filtering method related to the image texture is proposed. Firstly, frequency spectrum analysis method was used to identify the wedge and ring characters of image texture, and the period and directional...
In this paper the extraction of urban green space under the shadow from an IKONOS image was discussed and a hierarchical classification technique combining textural features and spectral characteristics was presented. Gulou campus of Nanjing University was taken as the test area. Firstly, the spectral characteristics of different features in all bands were analyzed and Difference Vegetation Index...
Most of the methods used so far for road extraction are to extract the roads as poly-lines from remote sensing image, but in the high resolution image, the road always has the character of surface, so the extraction result should be parallel contour. In the paper, multi-resolution analysis, template matching theory, combining double-Snake model are used to extract the road from high resolution image...
Focus of the paper lies on automated texturing of 3d building models with images recorded with infrared (IR) cameras. Therefore, a data fusion of given 3d models and recorded IR image sequences is performed. A relative orientation of the images of the sequence is generated using Nister's five-point algorithm and image triplets. This results in a point cloud of correspondence points and a relative...
A new method is developed to extract moving vehicles and subsequently detect their speeds from a pair of QuickBird (QB) panchromatic (PAN) and multi-spectral (MS) images automatically. Since PAN and MS sensors of QB have a slight time lag, about 0.2 seconds, the speed of moving vehicles can be detected by the movement between PAN and MS images in the time lag. From a PAN image with 0.6 m resolution,...
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