Patent application number | Description | Published |
20110194731 | METHOD OF DETERMINING REFERENCE FEATURES FOR USE IN AN OPTICAL OBJECT INITIALIZATION TRACKING PROCESS AND OBJECT INITIALIZATION TRACKING METHOD - A method of determining reference features for use in an optical object initialization tracking process is disclosed, said method comprising the following steps: a) capturing at least one current image of a real environment or synthetically generated by rendering a virtual model of a real object to be tracked with at least one camera and extracting current features from the at least one current image, b) providing reference features adapted for use in an optical object initialization tracking process, c) matching a plurality of the current features with a plurality of the reference features, d) estimating at least one parameter associated with the current image based on a number of current and reference features which were matched, and determining for each of the reference features which were matched with one of the current features whether they were correctly or incorrectly matched, e) wherein the steps a) to d) are processed iteratively multiple times, wherein in step a) of every respective iterative loop a respective new current image is captured by at least one camera and steps a) to d) are processed with respect to the respective new current image, and f) determining at least one indicator associated to reference features which were correctly matched and/or to reference features which were incorrectly matched, wherein the at least one indicator is determined depending on how often the respective reference feature has been correctly matched or incorrectly matched, respectively. | 08-11-2011 |
20140037140 | METHOD FOR DETERMINING CORRESPONDENCES BETWEEN A FIRST AND A SECOND IMAGE, AND METHOD FOR DETERMINING THE POSE OF A CAMERA - A method for determining correspondences between a first and a second image, comprising the steps providing a first image and a second image of the real environment, defining a warping function between the first and second image, determining the parameters of the warping function between the first image and the second image by means of an image registration method, determining a third image by applying the warping function with the determined parameters to the first image, determining a matching result by matching the third image and the second image, and determining correspondences between the first and the second image using the matching result and the warping function with the determined parameters. The method may be used in a keyframe based method for determining the pose of a camera based on the determined correspondences. | 02-06-2014 |
20140321705 | METHOD OF DETERMINING REFERENCE FEATURES FOR USE IN AN OPTICAL OBJECT INITIALIZATION TRACKING PROCESS AND OBJECT INITIALIZATION TRACKING METHOD - A method of determining reference features for use in an optical object initialization tracking process is disclosed, said method comprising the following steps: a) capturing at least one current image of a real environment or synthetically generated by rendering a virtual model of a real object to be tracked with at least one camera and extracting current features from the at least one current image, b) providing reference features adapted for use in an optical object initialization tracking process, c) matching a plurality of the current features with a plurality of the reference features, d) estimating at least one parameter associated with the current image based on a number of current and reference features which were matched, and determining for each of the reference features which were matched with one of the current features whether they were correctly or incorrectly matched, e) wherein the steps a) to d) are processed iteratively multiple times. | 10-30-2014 |
Patent application number | Description | Published |
20080255724 | Method for Detecting Road Lane Markings - A method for detecting road lane markings for a motor vehicle in motion with an image recording unit is presented. The image recording unit points to the road in front of the vehicle and in the recorded image data, brightness differences (contrasts) are analysed and/or edges are extracted. Road lane markings are detected by means of their periodic arrangement. For evaluation purposes, the measuring signal of the image recording unit is transformed into another coordinate system, and the auxiliary function thus obtained is tested for periodic structures. | 10-16-2008 |
20100321496 | CLASSIFICATION OF THE VEHICLE ENVIRONMENT - A method for a motor vehicle for the predictive classification of a future vehicle environment and its lighting conditions. To this end, a camera system is oriented with respect to a region ahead of the vehicle. A sequence of images is recorded. In a predefined central image detail, the change of brightness per unit of time and/or distance is determined and this is used to infer the environment ahead of the vehicle. | 12-23-2010 |
20120109454 | BOTTLENECK LIGHT AND METHOD OF ASSISTING A DRIVER IN STEERING A VEHICLE - A device for assisting a driver in steering a vehicle along a bottleneck. The device has a bottleneck detection unit which is configured to detect bottleneck information for characterizing a bottleneck in which the vehicle is located. A bottleneck information processing unit is configured to process the detected bottleneck information in order to derive therefrom assistance information for assisting the driver in steering the vehicle along the bottleneck. An actuation unit is provided and is configured to actuate a light source of the vehicle in such a way that the light source generates a light pattern, which can be seen by the driver, outside the vehicle, which light pattern displays the assistance information to the driver. | 05-03-2012 |
20150035979 | METHOD FOR DERIVING ENVIRONMENTAL INFORMATION FROM DETECTING THE REAR LIGHTS OF PRECEDING VEHICLES - A method for deriving environmental information from detecting the rear lights of preceding vehicles, including the following steps: Recording a sequence of images with a camera that captures the surroundings in front of the vehicle; Detecting and tracking rear lights of preceding vehicles in the sequence of images; and Analysis of the position and movement of the tracked rear lights and deriving environmental information from this analysis. | 02-05-2015 |
20150046015 | Method and Device for Assisting in Returning a Vehicle After Leaving a Roadway - The invention relates to a method for assisting in returning a vehicle ( | 02-12-2015 |
Patent application number | Description | Published |
20100307974 | PREPARATION AND USE OF NOVEL POLYANILINES FOR WATER TREATMENT - The invention relates to a polyaniline, comprising aniline units and organosulphur units, characterized in that the polyaniline is doped and has a number average degree of polymerization of approximately 5 to approximately 50. The scope of the invention also includes a process for the preparation of polyaniline, wherein aniline and at least one organosulphur unit are converted to a polyaniline derivative in an oxidative, acid-catalyzed polymerization reaction. A subject of the invention is also a coated substrate which is coated with the polyaniline according to the invention and also a process for the coating of the substrate. The scope of the invention furthermore also includes a coating composition which is suitable for the coating of the substrate. The invention thus also relates to a process for the preparation of the coating composition. A subject of the invention is also the use of polyaniline which is doped and has sulphur in the main polymer chain for water treatment and/or for the purification of air and also a purification reactor for carrying out the purification process. | 12-09-2010 |
20140231351 | MAGNETICALLY RESPONSIVE MEMBRANES - The invention provides permeable magnetically responsive filtration membranes that include a filtration membrane polymer base suitable for fluid filtration; hydrophilic polymers conjugated to the surface of the filtration membrane polymer; and magnetic nanoparticles affixed to the ends of a plurality of the hydrophilic polymers, wherein the hydrophilic polymers are movable with respect to the surface of the filtration membrane polymer surface in the presence of an oscillating magnetic field. | 08-21-2014 |
20140371340 | Catalytic Membranes And Applications Thereof - In one aspect, catalytic membranes are described herein. In some embodiments, a catalytic membrane comprises a surface functionalized with a polymer, the polymer comprising cellulose solubilization functionalities and acid functionalities for the catalytic hydrolysis of cellulose and/or hemicellulose. | 12-18-2014 |