摘要:
A simulation apparatus and method in relation to a sensor network are provided. The apparatus includes: a space database storing space information; a database storing standard specifications of sensors or sensor nodes; and a modeling unit extracting information on a 3-dimensional (3D) virtual space in which a sensor or sensor node is positioned, from the space database, obtaining the characteristic of the sensor or the sensor node from the standard specification based on the extracted space information and the standard specification of the sensor or the sensor node, and modeling the sensor or the sensor node. According to the apparatus and method, a virtual wireless sensor network system identical to a real world environment can be established, and as a result, the performance of the system can be accurately measured and an optimized design of the system can be efficiently performed.
摘要:
A system includes a server including a map data storage device storing original tile map data, grayscale image tile map data, and a plurality of multi-resolution color image tile map data having a resolution lower than that of the grayscale image tile map data, and a multi-resolution tile map data generation and transmission device generating the grayscale image tile map data and the multi-resolution color image tile map data and storing the generated data in the map data storage device, and a client including a multi-resolution tile map data reception and fusion device generating color tile map data by fusing the received grayscale image tile map data and color image tile map data and providing the color tile map data to a user, in which the resolution of the color image tile map data transmitted from the server is variably controlled according to the network environment.
摘要:
The method includes generating a 3D facility model for time-series information mapping using a 3D facility model, receiving input information on a desired time-series information type and a time-series information showing method, retrieving time-series information required to be visualized on the basis of the input information on the time-series information type and the time-series information showing method, mapping the retrieved time-series information to the generated 3D facility model according to the input time-series information showing method, and integratedly visualizing the 3D facility model and the time-series information mapped to the 3D facility model. When the apparatus and method are used, household-specific time-series information is precisely mapped and visualized to the corresponding 3D positions of a 3D spatial model, so that the time-series information in a 3D virtual city model can be integratedly visualized.
摘要:
A method for converting a mobile web application into a native application (the term “app” has the same meaning as the native application) and an apparatus using the method are disclosed. The method for converting a mobile web application into a native application may include: the steps of receiving at least one of a web implementation document that implements the mobile web application and a uniform resource locator (URL) for a local file; separating and analyzing a user interface element of the mobile web application based on the at least one of the web implementation document and the local file; and converting the mobile web application into the native application by mapping the analyzed user interface element to a native control that implements the native application.
摘要:
The present invention discloses an apparatus and method for protecting digital spatial information. The apparatus for protecting digital spatial information according to the present invention includes a spatial information authority database which stores access authority information on spatial information, an access authority determining unit which, when there is a request for access to the spatial information from a user, determines whether to permit the user to access the requested spatial information by referring to the spatial information authority database, a spatial information database, a spatial information providing unit which obtains the access-permitted spatial information from the spatial information database, organizes the information based on the user's request for access, and provides the information, and an access control unit.
摘要:
Provided is a method and apparatus for classifying geological materials using image processing techniques. The method and apparatus classify geological materials including stones, rock samples, and rock surfaces according to type and state by sequentially applying image processing techniques, such as a color space analysis, a granulometry analysis, texture parameter extraction and texture statistics extraction, to digital images of the geological materials. Since the method and apparatus extract quantitative figures that represent an entire image region by applying various image processing techniques, such as the color space analysis, the granulometry, the texture parameter extraction and the texture statistics extraction, to the digital images of the geological materials, the geological materials can be classified, which is not possible using a conventional image processing technique.
摘要:
An apparatus for calculating optical flow and camera motion using correlation matching and a system model in a moving image, in which the calculation of the optical flow is executed accurately in real time, even when an image rotation or zoom change has occurred. The apparatus comprises a feature point extracting section for extracting a feature point of a sequence of input images (previous image and current image); an optical flow calculating section for calculating an optical flow by use of the feature point extracted by the feature point extracting section; a first camera motion calculating section for calculating a camera motion by use of the optical flow calculated by the optical flow calculating section; a second camera motion calculating section for eliminating an incorrect optical flow from the optical flow calculated by the optical flow calculating section and again calculating camera motion; an optical flow location estimating section for estimating a location of the optical flow by estimating a distance difference between an estimated feature point location and a current feature point location in the previous image according to the camera motion calculated by the second camera motion calculating section; and a weighted value calculating section for calculating a weighted value according to the camera motion calculated by the second camera motion calculating section and providing the weighted value to the optical flow calculating section.