Abstract: A method for decoding an image based on an intra prediction, comprising: obtaining a first prediction pixel of a first region in a current block by using a neighboring pixel adjacent to the current block; obtaining a second prediction pixel of a second region in the current block by using the first prediction pixel of the first region; and decoding the current block based on the first and the second prediction pixels.

Abstract: Disclosed are an apparatus and method for configuring spatial information required to visualize a space represented based on a hierarchical structure having a plurality of levels each of which includes one or more tiles, configuring spatial information. The method includes checking tile visibility of each level according to whether a tile exists in the corresponding level; grouping one or more levels in which tile visibility is consistently maintained into one or more groups; and assigning a tile visibility index to each group.

Abstract: Disclosed are an apparatus and method for configuring spatial information required to visualize a space represented based on a hierarchical structure having a plurality of levels each of which includes one or more tiles, configuring spatial information. The method includes checking tile visibility of each level according to whether a tile exists in the corresponding level; grouping one or more levels in which tile visibility is consistently maintained into one or more groups; and assigning a tile visibility index to each group.

Abstract: A method of visualizing an image, a device and a system using the same. The method of visualizing, by a device operatively connected with an image provision server, an image configured in a hierarchical structure including a plurality of levels includes receiving tile visualization information in an encoded form from the image provision server, the tile visualization information including a tile visualization type determined according to whether at least one tile belonging to each of the levels of the image includes data; decoding the encoded tile visualization information and obtaining the tile visualization information; making a request to the image providing server for data for a target level and tile, which are to be visualized according to the tile visualization information; and displaying an image, which is to be visualized, received from the image provision server.

Abstract: A method of visualizing an image, a device and a system using the same. The method of visualizing, by a device operatively connected with an image provision server, an image configured in a hierarchical structure including a plurality of levels includes receiving tile visualization information in an encoded form from the image provision server, the tile visualization information including a tile visualization type determined according to whether at least one tile belonging to each of the levels of the image includes data; decoding the encoded tile visualization information and obtaining the tile visualization information; making a request to the image providing server for data for a target level and tile, which are to be visualized according to the tile visualization information; and displaying an image, which is to be visualized, received from the image provision server.

Abstract: An apparatus and method for providing an image-based indoor map. The apparatus for providing an image-based indoor map includes an indoor map request reception unit for receiving an indoor map request for a building having multiple floors from a terminal of a user, an indoor map acquisition unit for acquiring an indoor map corresponding to the building in response to the indoor map request from an indoor map database (DB), and an indoor map provision unit for providing the terminal of the user with information about at least one of multiple image indoor maps, in which multiple floors and Levels of Detail (LoDs) of each image are taken into consideration, and Points of Interest (POIs) for respective multiple floors, based on the indoor map.

Abstract: An apparatus and method for providing an image-based indoor map. The apparatus for providing an image-based indoor map includes an indoor map request reception unit for receiving an indoor map request for a building having multiple floors from a terminal of a user, an indoor map acquisition unit for acquiring an indoor map corresponding to the building in response to the indoor map request from an indoor map database (DB), and an indoor map provision unit for providing the terminal of the user with information about at least one of multiple image indoor maps, in which multiple floors and Levels of Detail (LoDs) of each image are taken into consideration, and Points of Interest (POIs) for respective multiple floors, based on the indoor map.

Abstract: An apparatus for processing indoor geospatial information for an indoor location-based service and a method thereof are provided. The apparatus includes a registerer configured to classify and register indoor geospatial information according to conditions that include a structure of a building and features of indoor space, and provide a user terminal with access information regarding specific indoor geospatial information found by the user terminal; and a provider configured to provide indoor geospatial information to the user terminal that has accessed the provider using the access information regarding the indoor geospatial information.

Abstract: An apparatus for managing an indoor moving object based on an indoor map and positioning infrastructure and a method thereof, the apparatus including a database configured to store an indoor map and positioning information, and a controller configured to divide an indoor space into indoor partition spaces in semantic units by use of the indoor map and the positioning information, and to store and manage an index that defines a relationship between the indoor partition space in the semantic unit and a moving object.

Abstract: Provided are an apparatus, system, and method for providing a stereoscopic indoor route, which can effectively guide a route in consideration of various features and structures of the indoor space unlike an existing navigation performed on only the outdoor space, in order to provide a navigation service performed on the indoor space. For stereoscopic movement, such as going upstairs or downstairs in inter-floor movement, which is characteristic of the indoor space, it is also possible to effectively and efficiently provide route guidance to a user by indicating up and down directions with a special arrow or icon and visualizing a route with icons for facilities, such as a general door, a revolving door, an escalator, and an elevator, which are specialized in the indoor space.

Abstract: The vehicle detection apparatus includes a communication unit, a magnetic sensing unit, a calibration information generation unit, a vehicle detection unit, and a control unit. The communication unit receives information about movement of a reference vehicle from a central management center. The magnetic sensing unit senses the change in a magnetic field attributable to the movement of a vehicle, and generates a magnetic signal. The calibration information generation unit generates calibration information. The vehicle detection unit calibrates the change in the magnetic signal attributable to movement of an actual vehicle based on the calibration information, and detects the movement of the actual vehicle. The control unit controls the above units, and sets the mode to calibration information generation mode in order to generate the calibration information and to vehicle detection mode in order to sense the movement of the actual vehicle.

Abstract: An apparatus for managing an indoor moving object based on an indoor map and positioning infrastructure and a method thereof, the apparatus including a database configured to store an indoor map and positioning information, and a controller configured to divide an indoor space into indoor partition spaces in semantic units by use of the indoor map and the positioning information, and to store and manage an index that defines a relationship between the indoor partition space in the semantic unit and a moving object.

Abstract: Disclosed is an apparatus for controlling engine using height information capable of preventing an engine from stopping according to a position of a vehicle. An apparatus for controlling an engine of a vehicle using height information includes: a height information management unit storing a plurality of height information; and an idling controller that extracts one or more height information according to a position of the vehicle from the height information management unit to determine a slope of the vehicle and controls the idling of the vehicle according to the determination result.

Abstract: Provided are an apparatus and method of providing facility information that may correct inaccurate information on a facility using site information and provide the corrected information in an augmented reality manner. A facility information providing apparatus according to an exemplary embodiment of the present invention including: a site information analyzing unit that analyzes site information to identify a site facility; a facility information searching unit that retrieves facility information corresponding to the site information; a facility information mapping unit that maps the facility information with the site facility and corrects the facility information based on a mapped result to generate corrected facility information; and an augmented reality providing unit that synthesizes the corrected facility information with the site information to generate augmented reality information.

Abstract: The present invention relates to a time synchronization method in a wireless sensor network. In the present invention, if an upper node requests a lower reference node to start time synchronization, the lower reference node broadcasts a first sync reference packet. The upper node receives the first sync reference packet and transmits the first sync reference packet reception time to the lower reference node. The lower reference node broadcasts the first sync reference packet reception time, such that the other nodes perform time synchronization on the basis of the first sync reference packet reception time. Meanwhile, the lower reference node estimates the first sync reference packet reception time of the upper node to calculate the reception estimation time, and transmits the reception estimation time to a determination node that is two hops anterior to the lower reference node.

Abstract: Disclosed is an apparatus and a method for creating textures of a building capable of storing textures of a three-dimensional building automatically extracted/obtained from spatial information convergence contents such as photographs, moving pictures, etc., including positional information and directional information, etc. together with a three-dimensional spatial information model.

Abstract: Disclosed herein is an apparatus and method for providing an indoor navigation service. An apparatus includes a communication module for, when an indoor navigation service is executed, accessing a service server for providing the indoor navigation service. An image control module acquires indoor images in real time and displays the indoor images on an indoor navigation screen. An indoor location recognition module extracts indoor marker from the indoor images, obtains information about the extracted indoor marker, and recognizes a current location in the indoor space based on the indoor marker information. An indoor navigation module requests indoor navigation information to the service server based on information about the current location and destination information, and displays the indoor navigation information.

Abstract: The vehicle detection apparatus includes a communication unit, a magnetic sensing unit, a calibration information generation unit, a vehicle detection unit, and a control unit. The communication unit receives information about movement of a reference vehicle from a central management center. The magnetic sensing unit senses the change in a magnetic field attributable to the movement of a vehicle, and generates a magnetic signal. The calibration information generation unit generates calibration information. The vehicle detection unit calibrates the change in the magnetic signal attributable to movement of an actual vehicle based on the calibration information, and detects the movement of the actual vehicle. The control unit controls the above units, and sets the mode to calibration information generation mode in order to generate the calibration information and to vehicle detection mode in order to sense the movement of the actual vehicle.

Abstract: Disclosed herein are an apparatus and method for generating traffic information. The apparatus includes a first information collection unit, a second information collection unit, a comparison and analysis unit, and a computation unit. The first information collection unit collects first sensed data, including first reference sampled data and a plurality of pieces of first surrounding sampled data from a first sensor unit. The second information collection unit collects second sensed data, including second reference sampled data and a plurality of pieces of second surrounding sampled data from a second sensor unit. The comparison and analysis unit determines similarity between the first sensed data and the second sensed data, extracts a first time from the first sensed data, and extracts a second time from the second sensed data. The computation unit calculates the vehicle's average speed.

Abstract: Disclosed herein are a method and apparatus for detecting vehicles. The apparatus include a signal generation unit and a vehicle detection unit. The signal generation unit generates a magnetic signal indicating a magnetic field versus time using a magnetic sensor. The vehicle detection unit generates magnetic signal waveform information, including a level value of the magnetic field of the magnetic signal per unit time, using a predetermined time summary unit and a magnetic signal summary unit, and extracts vehicle detection information, indicating whether a vehicle is present, from the magnetic signal waveform information.