Abstract: An information processing device, wherein the information processing device includes circuitry configured to: copy, in response to an instruction for play back of a content, encrypted content data; decrypt the copied encrypted content data for obtaining the content data representing the content; and apply a data protection algorithm on the content data to generate protected content data representing protected content, wherein the protected content is played back.

Abstract: A computer that identifies a fake image is described. During operation, the computer receives an image. Then, the computer performs analysis on the image to determine a signature that includes multiple features. Based at least in part in the determined signature, the computer classifies the image as having a first signature associated with the fake image or as having a second signature associated with a real image, where the first signature corresponds to a finite resolution of a neural network that generated the fake image, a finite number of parameters in the neural network that generated the fake image, or both. For example, the finite resolution may correspond to floating point operations in the neural network. Moreover, in response to the classification, the computer may perform a remedial action, such as providing a warning or a recommendation, or performing filtering.

Abstract: In one embodiment, a computing system accesses a three-dimensional (3D) model of an environment, the 3D model comprising a virtual representation of an object in the environment. The computing system accesses an image of the object captured by a camera from a camera pose. The computing system accesses light source parameters associated with a virtual representation of a light source in the environment. The computing system renders, using the 3D model, pixels associated with the virtual representation of the object based on the light source parameters, the pixels being rendered from a virtual perspective corresponding to the camera pose. The computing system determines updated light source parameters based on a comparison of the rendered pixels to corresponding pixels located in the image of the object.

Abstract: In one embodiment, a computing system accesses a three-dimensional (3D) model of an environment, the 3D model comprising a virtual representation of an object in the environment. The computing system accesses an image of the object captured by a camera from a camera pose. The computing system accesses light source parameters associated with a virtual representation of a light source in the environment. The computing system renders, using the 3D model, pixels associated with the virtual representation of the object based on the light source parameters, the pixels being rendered from a virtual perspective corresponding to the camera pose. The computing system determines updated light source parameters based on a comparison of the rendered pixels to corresponding pixels located in the image of the object.

Abstract: A computer that identifies a fake image is described. During operation, the computer receives an image. Then, the computer performs analysis on the image to determine a signature that includes multiple features. Based at least in part in the determined signature, the computer classifies the image as having a first signature associated with the fake image or as having a second signature associated with a real image, where the first signature corresponds to a finite resolution of a neural network that generated the fake image, a finite number of parameters in the neural network that generated the fake image, or both. For example, the finite resolution may correspond to floating point operations in the neural network. Moreover, in response to the classification, the computer may perform a remedial action, such as providing a warning or a recommendation, or performing filtering.

Abstract: A computer that identifies a fake image is described. During operation, the computer receives an image. Then, the computer performs analysis on the image to determine a signature that includes multiple features. Based at least in part in the determined signature, the computer classifies the image as having a first signature associated with the fake image or as having a second signature associated with a real image, where the first signature corresponds to a finite resolution of a neural network that generated the fake image, a finite number of parameters in the neural network that generated the fake image, or both. For example, the finite resolution may correspond to floating point operations in the neural network. Moreover, in response to the classification, the computer may perform a remedial action, such as providing a warning or a recommendation, or performing filtering.

Abstract: In one embodiment, a computing system accesses a three-dimensional (3D) model of an environment, the 3D model comprising a virtual representation of an object in the environment. The computing system accesses an image of the object captured by a camera from a camera pose. The computing system accesses material parameters associated with a material property for the virtual representation of the object. The computing system renders, using the 3D model, pixels associated with the virtual representation of the object based on the material parameters associated with the virtual representation of the object, the pixels being rendered from a virtual perspective corresponding to the camera pose. The computing system determines updated material parameters associated with the material property for the virtual representation of the object based on a comparison of the rendered pixels to corresponding pixels located in the image of the object.

Abstract: A computer that identifies a fake image is described. During operation, the computer receives an image. Then, the computer performs analysis on the image to determine a signature that includes multiple features. Based at least in part in the determined signature, the computer classifies the image as having a first signature associated with the fake image or as having a second signature associated with a real image, where the first signature corresponds to a finite resolution of a neural network that generated the fake image, a finite number of parameters in the neural network that generated the fake image, or both. For example, the finite resolution may correspond to floating point operations in the neural network. Moreover, in response to the classification, the computer may perform a remedial action, such as providing a warning or a recommendation, or performing filtering.

Abstract: To provide a brake lining for a disc brake of a vehicle, in which at least one friction lining element is arranged movably relative to the backing plate and to this end the at least one friction lining element is arranged on the backing plate by means of a spring system, with a particularly favourable force-deflection behaviour, a high degree of damping and a stable thermal behaviour, it is proposed for the spring system to have a plurality of spring elements or to consist of a plurality of spring elements.

Abstract: To improve a brake lining for a disc brake of a vehicle, having a backing plate and a plurality of friction lining elements arranged movably relative to the backing plate, such that brake squealing can be largely avoided and at the same time additional wear owing to ice and abrasive particles resulting from winter conditions is counteracted, it is proposed for a spring system between the backing plate and the friction lining elements to be designed such that, during brake operation and owing to a resulting lining pressure force on the friction lining elements, a contact force between at least two adjacent friction lining elements is increased.

Abstract: A computer-implemented method for tracking a human face in a target video includes obtaining target video data of a human face; and estimating parameters of a target human face model, based on the target video data. A first subset of the parameters represents a geometric shape and a second subset of the parameters represents an expression of the human face. At least one of the estimated parameters is modified in order to obtain new parameters of the target human face model, and output video data are generated based on the new parameters of the target human face model and the target video data.

Abstract: A brake lining for a partially lined disc brake, in particular of a rail vehicle, with lining elements which are connected on a lining carrier and of which each has a carrier plate and friction elements which are fastened to the carrier plate and lie on the rear side in receptacles, wherein the carrier plate is held on the lining carrier such that the carrier plate can be moved in a tilting manner, is configured in such a way that at least one depression which increases the surface area of the carrier plate is provided in the carrier plate, adjacent to the receptacles.

Abstract: Wheel-mounted brake disks which are arranged on both sides of a wheel base of a railway wheel and are fastened by through bolts, the bolt head of every through bolt lying in a countersink of one wheel-mounted brake disk and a nut screwed onto the through bolt lying in a countersink of the other wheel-mounted brake disk, each resting either directly or indirectly on the bottom of the countersink. The wheel-mounted brake disks are designed so that every countersink has an undercut portion that extends down to the bottom.

Abstract: A rail wheel with a wheel body and friction discs connected thereto on both sides by fastening elements, wherein a multi-layer coating is arranged at least between the respective contact surfaces of the friction discs and the contact surfaces of the wheel body with a coating which can be subjected to mechanically and thermally high loading. Also disclosed is a method for producing a rail wheel.

Abstract: Wheel-mounted brake disks which are arranged on both sides of a wheel base of a railway wheel and are fastened by through bolts, the bolt head of every through bolt lying in a countersink of one wheel-mounted brake disk and a nut screwed onto the through bolt lying in a countersink of the other wheel-mounted brake disk, each resting either directly or indirectly on the bottom of the countersink. The wheel-mounted brake disks are designed so that every countersink has an undercut portion that extends down to the bottom.

Abstract: A shaft brake disc, in particular for a rail vehicle, including a friction ring fastened to a hub by way of screws that are passed through a clamp ring at the inner periphery of the friction ring that sits against support flanges, the clamp ring forming a backing support for the screws, is adapted so that the clamp ring and the hub engage one another in a form-fitted manner.

Abstract: A brake lining for a partially lined disc brake, in particular of a rail vehicle, with lining elements which are connected on a lining carrier and of which each has a carrier plate and friction elements which are fastened to the carrier plate and lie on the rear side in receptacles, wherein the carrier plate is held on the lining carrier such that the carrier plate can be moved in a tilting manner, is configured in such a way that at least one depression which increases the surface area of the carrier plate is provided in the carrier plate, adjacent to the receptacles.

Abstract: A shaft brake disc, in particular for a rail vehicle, including a friction ring fastened to a hub by way of screws that are passed through a clamp ring at the inner periphery of the friction ring that sits against support flanges, the clamp ring forming a backing support for the screws, is adapted so that the clamp ring and the hub engage one another in a form-fitted manner.