摘要:
An undercarriage liner made of plastic for a vehicle is detachably attached to the adjacent vehicle chassis. In order for an undercarriage liner to have a significantly lower weight per unit of area, and thus a definitely reduced total weight, while retaining the same flexural strength and impact strength, the undercarriage liner, in the form of a sandwich structure, has a lightweight core layer of polypropylene foam or unconsolidated glass-mat-reinforced thermoplastic. The core layer is provided with a thin cover layer of polypropylene fiber-reinforced polypropylene on both sides. The two rigid and high-impact cover layers are each thermally bonded to the core layer.
摘要:
Systems and methods for compression of data that exhibits mixed compressibility, such as floating-point data, are provided. As one example, aspects of the present disclosure can be used to compress floating-point data that represents the values of parameters of a machine-learned model. Therefore, aspects of the present disclosure can be used to compress machine-learned models (e.g., for reducing storage requirements associated with the model, reducing the bandwidth expended to transmit the model, etc.).
摘要:
This disclosure describes techniques for encoding digital video data using interpolation filters and offsets. An encoder may be configured to select interpolation filters for sub-pixel precision motion estimation based on historical interpolation results obtained for previously encoded video units, such as frames or slices. The encoder also may be configured to compute and assign offsets to the sub-pixel positions after interpolation based on differences between a reference unit and the unit to be coded. The computation and assignment of offsets may be performed before motion estimation. Motion estimation may be refined so that the motion search considers sub-pixel positions to which offsets have been previously added and evaluates sub-pixel positions that have a non-zero offset. In some cases, interpolation filter selection, offset computation, and/or refined motion estimation for a given unit may be performed in a single encoding pass.
摘要:
A method and a device are described for selecting between multiple available filters in an encoder to provide a frame having a low error and distortion rate. For each full and sub pixel position, determining whether to use an alternative filter over the default filter during interpolation by estimating the rate distortion gain of using each filter and signaling to the decoder the optimal filter(s) applied to each full and sub-pixel position. In one embodiment, identifying a reference frame and a current frame, interpolating the reference frame using a default filter to create a default interpolated frame, interpolating the reference frame using an alternative filter to create an alternative interpolated frame, determining for each sub-pixel position whether to use the default filter or the alternative filter based on a minimal cost to generate a final reference frame.
摘要:
A method of updating computer software includes identifying an orphaned computer file in a second version of computer software, the orphaned computer file having a name that does not correspond to any name of a computer file in a first version of computer software and computing symmetric divergence between the orphaned computer file and each computer file in the first version of computer software. The method also includes choosing a file from the computer files in the first version of computer software that yields a minimum value of symmetric divergence between the file and the orphaned computer file and using the file as a reference file for compressing the orphaned computer file.
摘要:
In one embodiment, an initial series of bytes are scanned to determine a frequency of occurrence within the initial series of bytes for a plurality of byte strings. A data structure is generated containing the plurality of byte strings and count values representing a frequency of occurrence for the plurality of byte strings in the initial series of bytes. A most common byte string of the plurality of byte strings in the initial series of bytes is determined from the count values. Each instance of the most common byte string in the initial series of bytes is replaced with a first substitute byte string to form a revised series of bytes. A most common byte string in the revised series of bytes is determined from the data structure without resetting the count values associated with at least some of the plurality of byte strings.
摘要:
A method of updating computer software includes identifying an orphaned computer file in a second version of computer software, the orphaned computer file having a name that does not correspond to any name of a computer file in a first version of computer software and computing symmetric divergence between the orphaned computer file and each computer file in the first version of computer software. The method also includes choosing a file from the computer files in the first version of computer software that yields a minimum value of symmetric divergence between the file and the orphaned computer file and using the file as a reference file for compressing the orphaned computer file.
摘要:
A method, system, and device supporting installation of updates to software and/or firmware in memory of an electronic device. The updates may be accompanied by advertising, promotional and information content that is dynamically displayed to a user during processing of the update in the electronic device. The update information may be automatically generated based upon a list of all software components or packages already present on the electronic device, and may comprise software components for all dependencies of an application being installed by the update that are not already present on the electronic device.
摘要:
A file system based OS, such as CRAMFS, is employed in an electronic device. These OS are embedded in some electronic devices and the file systems have particular behavioral characteristics in these electronic devices embedded OS. Updating files in such file system requires the use of heuristics that help manage the update process. For example, heuristics is used to conduct efficient garbage collection in the device as part of the update process, in a preprocessing step.
摘要:
A discrete, universal denoising method is applied to a noisy signal for which the source alphabet is typically large. The method exploits a priori information regarding expected characteristics of the signal. In particular, using characteristics of a continuous tone image such as continuity and small-scale symmetry allows definition of context classes containing large numbers of image contexts having similar statistical characteristics. Use of the context classes allows extraction of more reliable indications of the characteristic of a clean signal.