Abstract: An acoustic damping material includes at least one polybutadiene PB, at least one at 25° C. liquid rubber LR, at least one butyl rubber BR, at least one natural or synthetic polyisoprene PI, at least one hydrocarbon resin HR and at least one solid particulate filler FM. The acoustic damping material is suitable for use in damping of undesired vibrations and noise in mechanical structures and components of manufactured articles. The acoustic damping material is used for damping of vibrations and noise in transportation vehicles and white goods, and a vibration and noise damping element include an adhesive layer composed of the acoustic damping material, and a method for applying a vibration and noise damping element to a noise emitting surface of a substrate, and a vibration damped system include a substrate and the vibration and noise damping element bonded to a noise emitting surface of the substrate.

Abstract: A vibration and noise damping element including a damping layer having first and second surfaces and an adhesive layer covering at least part of the first surface. The damping layer is composed of a damping layer material with a viscosity at 60° C. of 30?000-500?000 Pa*s containing at least one rubber component and the adhesive layer is composed of an adhesive layer material with a viscosity at 60° C. of 50?000-300?000 Pa*s containing at least one rubber component. The ratio of the thickness of the damping layer d1 to the adhesive layer d2 (d1/d2) is 0.6-4.0 and the sum (d1+d2) is 0.5-2.5 mm. The element shows good performance in the ball drop test at low temperatures, has good adhesion to the substrate it is applied to, provides good vibration and noise damping properties and guarantees easy separation after storage at temperatures between 30-50° C.

Abstract: A method of operating data-processing system for calibration of a vehicle surround view based on images captured of one or more 2D calibration patterns located at arbitrary positions in an overlapping field of view between two or more cameras fixed to the vehicle. The calibration patterns are arbitrary orientated in respect to the vehicle or other calibration patterns. Each calibration pattern is laying in the plane Z=0 on which the vehicle having surround view system is parked. The images of any calibration pattern j positioned in an overlapping field of view between two or more cameras are taken simultaneously establishing connected topological structure of the form: . . . —camera i—pattern j—camera i?—pattern j^?—camera i?— . . . The data-processing results with the corrected extrinsic camera i parameters Ri,Ci for the vehicle coordinate system.

Abstract: The present invention discloses the method of operating data-processing system for calibration of a vehicle surround view. The process is based on images capturing of one or more 2D calibration patterns located at arbitrary positions in an overlapping field of view between two or more cameras fixed to the vehicle. The calibration patterns are arbitrary orientated in respect to the vehicle or other calibration patterns. Each calibration pattern is laying in the plane Z=0 on which the vehicle having surround view system is parked. The images of any calibration pattern j positioned in an overlapping field of view between two or more cameras are taken simultaneously establishing connected topological structure of the form: camera i—pattern j—camera i?—pattern j ? 1—camera in—. The data-processing results with the corrected extrinsic camera i parameters RC, for the vehicle coordinate system.