Patent application number | Description | Published |
20080294338 | Method of Mapping and Navigating Mobile Robot by Artificial Landmark and Local Coordinate - A method of mapping and navigating a mobile robot by an artificial landmark and a local coordinate is provided. The method of creating a map includes: a) recognizing an artificial landmark in a target space and defining the recognized artificial landmark as a predetermined node; b) defining an adjacent artificial landmark as a destination node while traveling to the adjacent artificial landmark; c) defining the recognized artificial landmark as an origin of a local coordinate, defining a coordinate axis provided from the predetermined artificial landmark as a coordinate axis of the origin, obtaining and storing information about the predetermined node, the destination node, and an edge connecting the predetermined node and the destination node; and d) creating a map by storing information about edges between each of nodes to an adjacent node for all of the artificial landmarks through repeatedly performing the steps b) and c). | 11-27-2008 |
20080310682 | System and Method for Real-Time Calculating Location - Provided is a system and method for providing location information of robot in real time using an artificial mark. The system includes: an image processing module for obtaining an image signal by photographing artificial marks installed at a predetermined space with a space coordinate and detecting an image coordinate of artificial mark from the obtaining the image signal; a location calculating module for calculating a current location by comparing the image coordinate of detected artificial mark and a pre-stored space coordinate of artificial mark; and an artificial mark identifying module for updating current location information by selectively using one of an artificial mark tracing process and an image coordinate estimating process. | 12-18-2008 |
20090295546 | METHOD AND APPARATUS FOR PERFORMING WIRELESS SENSOR NETWORK COMMUNICATING SELECTIVELY USING INFRARED AND RADIO FREQUENCY COMMUNICATION - A wireless sensor network communication apparatus and method selectively using infrared and radio frequency communication. The wireless sensor network communication apparatus includes a first communicating unit, a second communication unit, and a wireless node processor. The first communicating unit wakens a neighboring node in a sleep mode and transmits/receives the woken node and sensor data. The second communicating unit transmits/receives the woken neighboring node and the sensor data. The wireless node processor is wakened from the sleep mode, wakens the neighboring node in the sleep mode, and transmits the sensor data with a minimum low power through one of the first and second communicating unit. Accordingly, the apparatus can perform the wireless sensor network communication with lower power compared to the case that communication is performed only by the radio frequency communication function. | 12-03-2009 |
20100049366 | SURROUNDINGS MAPPING APPARATUS CAPABLE OF APPLYING QUICKLY CHANGED SURROUNDINGS INFORMATION IN MOBILE ROBOT AND METHOD THEREOF - A method of responding to environmental change to build an environment map of a mobile apparatus and an apparatus thereof are disclosed. The apparatus includes a traveling unit traveling a mobile apparatus according to a command, a distance measuring unit measuring a distance from the mobile apparatus to a moving object, an environment map-generating unit generating an environment map based on a measured distance, a moving object detecting unit detecting the moving object moved after generating the environment map by comparing a distance from the mobile apparatus to the moving object with the newly measured distance, and a controlling unit updating the environment map according to the command by selectively applying changed environment information containing the moving object to the built environment map when the moving object is detected. Thus, the changed environmental information can be rapidly and precisely applied to build the environment map. | 02-25-2010 |
20120141094 | METHOD FOR GENERATING TRAINING VIDEO AND RECOGNIZING SITUATION USING COMPOSED VIDEO AND APPARATUS THEREOF - Disclosed are a method and an apparatus for generating training videos and recognizing situations, using composed videos. The method for generating training videos using composed videos according to an exemplary embodiment of the present invention includes generating composed videos based on configuration information of an original video; selecting the composed videos satisfying structural constraints of situations among the generated composed videos; and configuring the training videos including the selected composed videos. | 06-07-2012 |
20120155711 | APPARATUS AND METHOD FOR ANALYZING VIDEO - Disclosed are an apparatus and a method for analyzing a video. The video analyzing apparatus includes a route analyzing unit configured to analyze a subject of a first-person view video and an object represented in the first-person view video based on the first-person view video and generate route information of the subject and the object; and an event analyzing unit configured to classify the first-person view video as a semantic event using the route information. | 06-21-2012 |
20120162425 | DEVICE AND METHOD FOR SECURING VISIBILITY FOR DRIVER - The device for securing visibility for a driver includes an input unit obtaining an image of an area in front of a moving object; a first estimating unit estimating from the image a geometric relationship between the moving object and its surrounding environment to output geometric relationship information; a second estimating unit estimating from the image an optical characteristic of the environment to output optical characteristic information; a first correcting unit adjusting brightness and contrast of the image based on the optical characteristic information and eliminating blob noise resulting from the environment; a second correcting unit compensating for vibration of the image based on the geometric relation information and eliminating motion blur; a synthesizing unit restoring, based on the geometric relationship information, empty space of the image resulting from the blob noise elimination and the vibration compensation and extracting and highlighting principal information of the image to acquire new image. | 06-28-2012 |
20120163662 | METHOD FOR BUILDING OUTDOOR MAP FOR MOVING OBJECT AND APPARATUS THEREOF - The method for building an outdoor map for a moving object according to an exemplary embodiment of the present invention includes: receiving a real satellite image for an outdoor space to which the moving object is to move; calculating pixel information including sizes of length and width pixels and a physical distance of one pixel in the real satellite image; measuring a reference position coordinate for a reference position selected from the real satellite image; and linking a pixel number corresponding to the reference position, the reference position coordinate, and the pixel information to the real satellite image in order to build the outdoor map for the moving object, and further includes creating information on a road network in which the moving object navigates based on the pixel number corresponding to the reference position, the reference position coordinate, and the pixel information. | 06-28-2012 |
20120236287 | EXTERNAL ENVIRONMENT VISUALIZATION APPARATUS AND METHOD - The present invention adjusts images received from plural cameras that are oriented to plural directions and combines the images with distance information. Thereafter, the circumstantial environment is visualized based on a moving object using an augmented reality technique to provide to a user. Specifically, the present invention adjusts images in plural directions and adds the distance information to improve the accuracy and uses a visualization method that displays the images with respect to the moving object. | 09-20-2012 |
20130253827 | APPARATUS FOR FAST PATH SEARCH BY LEARNING HEURISTIC FUNCTION AND METHOD THEREOF - Disclosed are an apparatus and a method for fast path search using learning of a heuristic function according to the present invention. An apparatus for fast path search according to the present invention includes: an input unit to receive destination information from a user, and to receive a search request for a path to the received destination information; a location recognizing unit to obtain current location information of the user when the search request for the path is received; and a control unit to search a map for a path from a start node corresponding to the current location information to a destination node corresponding to the destination information using a heuristic evaluation function. | 09-26-2013 |