5 results about "Compressed structure" patented technology

The utility model relates to the technical field of scroll compressors, in particular to a scroll compression structure for a scroll compressor and the scroll compressor, the scroll compression structure for the scroll compressor comprises a movable scroll plate, the movable scroll plate is made of aluminum alloy, and the surface of the movable scroll plate is coated with a nano graphene coating; and the static scroll plate is meshed with the movable scroll plate. According to the scroll compression structure for the scroll compressor and the scroll compressor, the problem that an existing scroll compression structure for the scroll compressor is seriously abraded can be solved.

An accelerator device determines a compression format based on a header of a structured data element to be decompressed. The accelerator device may configure the accelerator device based on the compression format. The accelerator device may decompress a data block of the structured data element based on the configuration.

This invention discloses a structured crime scene modeling method based on 3D graph convolution, comprising the following steps: collecting data to generate a multi-source crime scene input dataset; constructing a 3D spatial graph of the crime scene, establishing graph edges based on the constraint set of structural relationships between nodes, and generating the 3D spatial graph; initializing node features and edge weights to generate an initial graph structure; performing 3D graph convolution processing on the initial graph structure, constraining the convolutional neighborhoods of nodes, performing neighborhood-based convolution operations on the features of nodes within the neighborhoods, and generating an intermediate feature map; performing graph pooling operations on the intermediate feature map to generate a compressed structural representation of the crime scene; and decoding and modeling the compressed structural representation to obtain a structured 3D scene representation. This invention constructs a structured crime scene model based on 3D graph convolution, realizing the fusion of multi-source data and criminal investigation relationships, and possesses the advantages of high semantic fidelity, complete structural representation, and strong modeling reliability.

The application discloses an OFD cross-format conversion method, computer equipment and a storage medium, relates to the technical field of electronic document format conversion, and comprises the following steps: scanning an OFD document file, detecting a compression header identifier, recursively decompressing a nested compression structure and performing directory verification to obtain an OFD document structure; analyzing the structure to obtain root document information, signature information and resource information containing fonts and pictures; constructing a font mapping relationship for replacing missing fonts during rendering based on the resource information; obtaining the page content of each document page according to the root document information and the signature information; concurrently rendering all the page content in a multithreading mode to generate rendering data corresponding to each page; and merging the rendering data of each page to generate a target format output file. The application ensures complete extraction of nested compressed resources through recursive decompression, guarantees consistency of formats by using font mapping, improves conversion efficiency by combining multithreading rendering, and realizes high-fidelity and high-efficiency conversion of OFD documents into formats such as PDF.

The application discloses a kind of multi-dimensional time series data compression and fast retrieval method and system, it is related to big data compression retrieval technical field.The kind of multi-dimensional time series data compression and fast retrieval method and system, including S1, the multi-source data in monitoring abstract video stream is collected and preprocessed, constructs standardization time series behavior dataset;S2, the behavior characteristics of frame section in sliding window are analyzed, anchor point labeling and compression strategy are dynamically adjusted;S3, the coverage completeness of anchor point information in compressed section is evaluated, and index path generation is driven;S4, the behavior correlation strength of path is comprehensively evaluated and dynamically adjusted loading decision;S5, the matching integrity of behavior anchor point field and jump pointer is verified, and the positionability and jump stability of event in compression structure are guaranteed.Solve the problem that video abstract compression is not bound with behavior semantics in intelligent monitoring scheme, lacks fine-grained positioning mechanism based on behavior label, and user playback cannot directly locate key action section.