Patent application number | Description | Published |
20120130637 | METHOD AND DEVICE FOR DISPLAYING ROAD SEGMENTS AND METHOD OF PROVIDING A MAP DATA BASE - A method and device for displaying road segments are provided. The method uses a map data base storing information on a road network in a road vector data format. Additional parameter values are stored for a subset of road segments. Information on a direction vector and the parameter value for a road segment are retrieved. Based on the parameter value, it is determined whether the road segment exhibits a variation in shape as a function of position along its direction vector. A graphical representation of the road segment is generated based on the retrieved parameter value and the direction vector. | 05-24-2012 |
20120224770 | SYSTEM FOR FLOOR NUMBER DETERMINATION IN BUILDINGS - A system may determine a number of floors of a building based on image data of the building. The system may determine a background color of a façade of the building shown in the image data. Using this background color, predefined deviations may then be detected that form the background color in the façade of the building. A mean number of predefined deviations in the vertical direction of the façade of the building may be determined, and the number of floors of the building based on the determined mean number of predefined deviations can be then be deduced. | 09-06-2012 |
20120253753 | NAVIGATION SYSTEM FOR OUTPUTTING A THREE-DIMENSIONAL ROOF STRUCTURE AND GENERATING A DATABASE - A navigation system has a database storing data for reconstructing three-dimensional roof structures. The data includes information on edges of at least one closed polygon and a type identifier respectively stored in the database for each one of the edges. Each one of the type identifiers is respectively selected from a finite set of type identifiers. Plural planar faces are generated to reconstruct the roof structure. The planar faces are respectively determined such that they pass through an edge of the polygon and have an orientation determined based on the type identifier stored for the edge. | 10-04-2012 |
20120274633 | SYSTEM FOR DETERMINING A HEIGHT COORDINATE - A navigation system has a database which stores index data for, respectively, a tile of a tiling. The index data includes, for each one of plural cells of a grid which is superimposed on the tile, respectively an identifier for each triangular face of a triangulated irregular network which at least partially overlaps with the respective cell. The plural cells of the grid are defined so as to cover the respective tile. A processing device of the navigation system is configured to use the index data to determine a triangular face on which a map feature having given lateral coordinates is located, in order to determine a height coordinate of the map feature. | 11-01-2012 |
20120274637 | SYSTEM FOR OUTPUTTING A THREE-DIMENSIONAL REPRESENTATION OF A TERRAIN - A database for a navigation system has digital elevation model data defining a three-dimensional surface. The database stores, for plural tiles of a tiling, a first array including three-dimensional coordinates of vertices of plural triangulated irregular networks, TINS, for the respective tile, and a plurality of second arrays. Each second array respectively defines triangular faces of a TIN and includes a plurality of vertex indices of the vertices to define triangular faces of the respective TIN. A method of outputting a three-dimensional representation of a terrain and a method of generating the database are also described. | 11-01-2012 |
20130169628 | GEOGRAPHICAL MAP LANDSCAPE TEXTURE GENERATION ON THE BASIS OF HAND-HELD CAMERA IMAGES - For generating a landscape texture of a geographical map, a plurality of images captured by one or more hand-held devices equipped with a camera are obtained. Further, additional data associated with each of the captured images are obtained. These additional data include a geographical position of the camera when capturing the image, inner camera orientation data representing properties of the camera when capturing the image, e.g., a focal distance, a camera constant, and/or a position of an image principal point, exterior camera orientation data representing an orientation of the camera when capturing the image, e.g., an angle representing an orientation of an optical axis of the camera with respect to a horizontal plane and a barometric height of the camera when capturing the image. On the basis of the barometric height and the geographical position, a ground height of the camera above a ground surface is determined. On the basis of the ground height, the inner camera orientation data and the exterior camera orientation data, each of the images is distorted so as to obtain a projection onto the ground surface. The distorted images are then registered, and the landscape texture is generated from the distorted images | 07-04-2013 |
20130169664 | METHOD OF DISPLAYING POINTS OF INTEREST - A method of displaying points of interest in a perspective view of a geographical area on a display of a navigation device is provided. In the method, a perspective view of the geographical area is displayed on the display of the navigation device. Further, points of interest are displayed as graphical symbols in the perspective view, wherein the size of each graphical symbol is dependent on the distance of the respective point of interest from a view point of the perspective view, such that graphical symbols for points of interest located further away from the view point are displayed smaller than graphical symbols for points of interest located closer to the view point. Each point of interest is associated with a point of interest-category. | 07-04-2013 |
20130218465 | NAVIGATION SYSTEM - A navigation system (NS) may include a processor that can retrieve geographic map data from a database, where the geographic map data includes polygonal chains. The processor can determine a straightness value, a length ratio, and/or an angle-to-length ratio for each of the polygonal chains based on segments and/or vertices of the polygonal chain. Also, a first class and a second class of the polygonal chains can be determined based on one or more of the three determined values for each of the polygonal chains. The first class may represent roads that are less winding than the second class, and such an attribute may be beneficial in selecting an optimal route. | 08-22-2013 |
20140032111 | ELECTRONIC MAP SYSTEM - An electronic map may be output based on map data including information related to a current configuration of each of a plurality of map objects and historical attributes of at least a portion of the plurality of map objects. The historical attribute associated with a map object may include information related to a historical configuration of the respective map object in the past. A time selection input may be received at a user interface. The map data may be processed to identify a map object having a current configuration different from a historical configuration at a time in the past which is determined based on the time selection input. An optical output device may be controlled to output a graphical representation of the identified map object that is dependent on both the current configuration and the historical configuration of the identified map object. | 01-30-2014 |
20140244161 | Method of Generating a Database for a Navigation Device, Method of Outputting a Three-Dimensional Map, and Navigation Device - In a method of generating a database for use in outputting three- dimensional maps, a projection of a two-dimensional road vector onto a three-dimensional surface defined by digital terrain model data is determined. At least one three-dimensional road vector ( | 08-28-2014 |
20140249748 | ROUTE GUIDANCE AT INTERSECTIONS - Various embodiments relate to techniques of providing route guidance along a planned route leading through at least one intersection. Predetermined attributes for a respective transition through the at least one intersection are retrieved from a database, the attributes specifying at least a curved path modelling a geometrical form of the transition. The curved path is displayed in a map view for route guidance along a planned route. | 09-04-2014 |
20140368496 | 3-DIMENSIONAL MAP VIEW WITH BACKGROUND IMAGES - Techniques for generating a 3-dimensional map view of a navigation system are disclosed. A position module determines a position of a user to which the 3-dimensional map view is to be displayed, a viewing direction and elevation for the user. A map viewer generates the 3-dimensional map view of the map data, wherein for objects located within a predefined distance to the position of the user the position and the representation of each object is calculated taking into account the viewing direction and the elevation, wherein for objects located outside the predefined distance at least one group of objects, to which the objects belong, is identified, and for each identified group the background image is selected and displayed in which the 3-dimensional objects of the identified group are shown from the determined viewing direction and elevation. A display device displays the generated map view. | 12-18-2014 |
20150042639 | SYSTEM FOR DISPLAYING THREE-DIMENSIONAL LANDSCAPES - A system for displaying three-dimensional landscapes includes a processor and a storage device in communication with the processor. The processor is configured to identify at least one predetermined landscape element in a landscape to be displayed, individually calculate a representation of the at least one predetermined landscape element and cause a display to display the landscape based on the individually calculated representation of the at least one predetermined landscape element and the altitude data. | 02-12-2015 |