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为了解决奇异值分解(singularvaluedecomposition,SVD)算法提取水印时需要原始载体图像的缺陷,以及 量化索引调制(quantizationindexmodulation,QIM)均匀量化不适用于非均匀信号的问题,通过引入 μ律压缩技术, 提出一种新的基于 DWTSVD压缩量化的数字图像盲水印算法。该算法对载体图像进行分块,对每一分块实施离 散小波变换(discre...
In this paper, we investigate the exact method of searching an axis of binary image symmetry, based on brute-force search among all potential symmetry axes. As a measure of symmetry, we use the set-th...
The possibility of accurate recognition of folk dance patterns is investigated in this paper. System inputs are raw skeleton data, provided by a low cost sensor. In particular, data were obtained by m...
Classification is the most important method to determine type of crop contained in a region for agricultural planning. There are two types of the classification. First is pixel based and the other is ...
Within the last two decades, object-based image analysis (OBIA) considering objects (i.e. groups of pixels) instead of pixels has gained popularity and attracted increasing interest. The most importan...
High resolution satellite imaging is considered as the outstanding applicant to extract the Earth’s surface information. Extraction of a feature of an image is very difficult due to having to find the...
Based on the smooth transition model for conceptual neighborhood graphs among binary topological relations, an extended model, the movement model, is proposed. A neighborhood relation between two topo...
A semi-automatic system for extracting topographic features is being migrated to an object-oriented design for better maintainability. For that purpose an object-oriented model of the extracted object...
An automatic procedure is developed for detection of changes between an existing road database and a newly registered satellite image, rectified to an orthophoto.
During the past data fusion has become an important issue in remote sensing image analysis. Image analysts benefit very much from fusion products, e.g. merged optical and radar imagery, which provide ...
Aim at registration of high resolution remote sensing images,a image registration algorithm based on line feature is described in this paper. First,the lines in both images are extracted, Next a modif...
High-resolution satellite images (HRSI) at sub-5m footprint such as IKONOS, IRS-P5 (CartoSat-1) and SPOT-5 HRG/HRS images are becoming increasingly available to the earth observation community and the...
The range of photogrammetric and remote sensing technology has considerably widened during the past years. In particular, many new sensors have been put into operation, which ended the dominance of a ...
Some different techniques were adopted in disaster management and research. Difficulties appeared in operational disaster emergency response works. There is no effective scheme to integrate various me...
The Multi-Resolution Land Characteristics (MRLC) Consortium is a group formed by the U.S. federal agencies in 1990 to purchase Landsat 5 Thematic Mapper imagery for the conterminous U.S. and to develo...

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