28 results about "Information recovery" patented technology

The present disclosure provides an encryption and decryption system and method. The encryption and decryption system includes a transmitting device and a receiving device. The transmitting device is configured to store a plurality of original images. The receiving device is connected to the transmitting device and configured to store a corresponding table. The transmitting device generates an encrypted string, selects a representative transformed image from the plurality of transformed images according to the encrypted string, transmits the representative transformed image to the receiving device, and does not transmit the encrypted string to the receiving device. The receiving device identifies a first original image number and a second original image number from the representative transformed image, and looks up the corresponding table according to the first original image number and the second original image number to generate the encrypted string. Thus, various network attacks can be prevented, resource and time consumption can be greatly reduced, the problem of excessive distortion or low capacity of embedded data can be solved, and the information recovery capability can be greatly improved.

The present application provides a power control device that can suppress the power consumption reduction effect obtained by leveling execution from being weakened by suppressing the power consumption amount after leveling execution. The power control device includes a communication unit and a control unit. The control unit stores information of a leveling instruction and information of a recovery mitigation request. The information of the leveling instruction includes information of an execution time and information of a first allowable average power in the execution time. The information of the recovery mitigation request includes information of a recovery period and information of a second allowable average power in the recovery period. The control unit controls the driving of a power load device in such a manner that the average consumption power of a facility in the execution time becomes lower than the first allowable average power, and controls the driving of the power load device in such a manner that the average consumption power of the facility in the recovery period becomes lower than the second allowable average power. The second allowable average power is greater than the first allowable average power.

This invention provides a gaming machine that partially unifies the backup and recovery process, which restores predetermined information to its pre-game state, with the backup process, which backs up the predetermined information, thereby reducing the pressure on the program area capacity of the main ROM. [Solution] In the game start state control process of the main process, a backup of various information is acquired, and further, in the game end state control process of the main process, a process is provided to restore the backed-up various information according to predetermined conditions. In this process, when backing up and when restoring the various information, the values ​​of the registers that store the addresses of the respective data storage areas are swapped, thereby making some of the programs common.

The application provides a heat-aware storage engine performance optimization method, which comprises the following steps: determining a target database, initializing a maximum heap in the memory of the target database, and maintaining the file heat of the system; reading file heat information from the log of the target database, and recovering the file heat identification mechanism based on the maximum heap; writing the file heat information into a Memtable of an LSM-tree memory component by a storage engine, and making the data of the Memtable fall to the disk and generate a CuckooTable file; establishing a Bloom filter for the CuckooTable file on an NVM; recording the corresponding relationship between the Bloom filter and the file in an index queue; and updating the index queue when the number of files in the LSM-tree reaches a preset threshold. The method provided by the application can be used to optimize the performance of a storage engine designed with a LSM-tree structure.

This invention provides a gaming machine that partially unifies the backup and recovery process, which restores predetermined information to its pre-game state, with the backup process, which backs up the predetermined information, thereby reducing the pressure on the program area capacity of the main ROM. [Solution] In the game start state control process of the main process, a backup of various information is acquired, and further, in the game end state control process of the main process, a process is provided to restore the backed-up various information according to predetermined conditions. In this process, when backing up and when restoring the various information, the values ​​of the registers that store the addresses of the respective data storage areas are swapped, thereby making some of the programs common.

The present application relates to a recoverable visual encryption method for collecting human privacy areas in images by unmanned aerial vehicles, and a joint deep learning model is constructed by integrating a pre-trained target detection module, a self-adaptive visual encryption module and an enhanced visual decryption module; in the training stage, the parameters of the target detection module are frozen, and the encryption and decryption modules are optimized end-to-end through a joint loss composed of a composite decryption loss function and an encryption intensity loss function; in the application, the target detection module accurately locates the sensitive areas of the human body, the encryption module applies a size-adaptive and intensity-learnable pixelization transformation to generate a natural encrypted image, and under the authorization condition, the decryption module realizes high-fidelity original information recovery through an enhanced U-Net network. Compared with existing traditional image encryption or irreversible desensitization technology, the present application realizes seamless integration with mainstream target detection processes, ensures the integrity and recoverability of information while maintaining high visual concealment, and has the advantages of intelligence, high efficiency and strong practicality.

To provide players with a more flexible gaming environment. [Solution] The setting reception means 80 accepts a setting regarding whether or not to resume a match of the target game if it is interrupted midway, based on the game information acquired by the game information acquisition means 60. The game information matching means 64 compares the game information transmitted from player device 2-A with the game information transmitted from player device 2-B for the progress at a predetermined point in time, and determines whether or not there is any missing game information. The interruption acquisition means 66 acquires interruption game information relating to the progress of the game at that point in time if the game progress is interrupted by the game information matching means 64. The resume generation means 92 generates resume game information relating to the progress of the game to be resumed, based on the conditions for the game to be resumed determined by the resume determination means 90.

The application discloses a database switching management method and device, computer equipment and a storage medium, and relates to the field of data storage. The method comprises the following steps: creating a second user object in an original database, and creating a private synonym under the second user object, so that the private synonym points to source data corresponding to a first user object; controlling an application to access the source data according to the private synonym; when the source data is synchronized to a target database and business logic switching completion information is received, closing data management permission of the first user object; and if no right to read information is received, restoring the data management permission of the first user object, and sending database switching failure information to a terminal of a staff. Based on the method, during the database switching process, an application that has not completed business logic modification is exposed due to the closed data management permission, so that the situation that the business logic modification error can be known only in the later stage is avoided, and the database switching process can be reasonably verified and managed.

The application discloses a channel information compression feedback method using frequency division duplex channel implicit reciprocity. For the frequency division duplex channel information data with implicit reciprocity, the application firstly converts the spatial frequency domain channel matrix to the angle delay domain and performs clipping, and then splits and splices the real part and the imaginary part of the channel matrix into two real number matrices; three encoder networks are used for decoupling characterization learning of the downlink channel, and the downlink channel unique information, the uplink and downlink channel common information and the virtual uplink and downlink channel common information are extracted respectively; the decoder network recovers the original channel information by using the downlink channel unique information and the uplink and downlink channel common information during training, and recovers the original channel information by using the downlink channel unique information and the virtual uplink and downlink channel common information during testing; in the application, the user only needs to feed back the downlink channel unique information, the channel feedback load is effectively reduced, the channel information recovery performance is improved, and the application has a significant performance advantage.

The application provides an image reconstruction method, system and medium of a compressive sensing lens based on a coded aperture, the method comprising: acquiring an original scene image, performing projection modulation to obtain an image received by a sensor; constructing a sensing matrix and a projection matrix, mapping a transfer function of a mask based on the sensing matrix, performing spatial coding sampling on the image received by the sensor through the projection matrix to obtain a compressed measurement result; constructing a deep learning reconstruction network, processing the compressed measurement result based on the deep learning reconstruction network to obtain a two-dimensional feature map; capturing different subspace information based on the two-dimensional feature map through a multi-head attention mechanism, restoring the image resolution based on the different subspace information, and outputting a reconstructed image; and using the mask to realize physical compression, greatly reducing the data acquisition amount, restoring information through the deep learning reconstruction network, improving the image reconstruction efficiency and sensing quality, and adapting to multiple scene environments.

The present application relates to a convolutional neural network-based image color fusion method, device and storage medium, applied to the technical field of image processing, comprising: realizing color adaptation of foreground and background under the double constraints of foreground mask and skin segmentation mask through a color fusion model, optimizing the color naturalness of the skin area, effectively solving the problems of rigid fusion and strange skin color in the prior art, and improving the stability of the method; The high-resolution processing strategy of "low-resolution inference + detail preservation color migration" not only avoids the problems of large video memory consumption and long time consumption of direct high-resolution inference, but also solves the problems of loss of global color information in block inference and introduction of edge abnormalities in traditional high-frequency information recovery; The detail preservation color migration model can accurately extract the color features of the low-resolution fusion result and completely retain the texture details of the high-resolution original image, realizing the dual goals of color fusion and detail preservation; Automatic processing significantly reduces time and labor costs.

This invention provides a gaming machine that partially unifies the backup and recovery process, which restores predetermined information to its pre-game state, with the backup process, which backs up the predetermined information, thereby reducing the pressure on the program area capacity of the main ROM. [Solution] In the game start state control process of the main process, a backup of various information is acquired, and further, in the game end state control process of the main process, a process is provided to restore the backed-up various information according to predetermined conditions. In this process, when backing up and when restoring the various information, the values ​​of the registers that store the addresses of the respective data storage areas are swapped, thereby making some of the programs common.

To provide a power control device that can suppress the dilution of the power consumption reduction effect obtained by performing power leveling by suppressing the amount of power consumption after leveling is performed. [Solution] The power control device 21 comprises a communication unit 21d and a control unit 21c. The control unit 21c stores information for leveling instructions and information for recovery mitigation requests. The leveling instruction information includes information for the execution time and information for the first allowable average power during the execution time. The recovery mitigation request information includes information for the recovery period and information for the second allowable average power during the recovery period. The control unit 21c controls the operation of the power load equipment 22 so that the average power consumption of the facility 20 during the execution time is less than or equal to the first allowable average power, and controls the operation of the power load equipment 22 so that the average power consumption of the facility 20 during the recovery period is less than or equal to the second allowable average power. The second allowable average power is greater than the first allowable average power.

The application discloses a kind of multi-stage pulverization and electromagnetic degaussing integration commercial secret carrier destruction device.The device puts commercial secret carrier into box, and double-shaft motor starts, and second drive shaft drives sealing plate to rotate, and its through slot is intermittently communicated with discharge opening, and carrier is intermittently entered into pulverizing bin, and first drive shaft drives pulverizing rod to preliminarily pulverize;After pulverization, carrier enters into crushing bin, and driving part makes crushing shaft drive crushing roller to further crush;After crushing, carrier enters into pounding bin, and second drive shaft drives pounding plate reciprocating motion through transmission assembly, and pounding tooth pounds carrier into small particles or powder.This device can completely destroy the physical structure of carrier through multi-stage pulverization, reduce information recovery risk, and is efficient in power utilization, stable in operation, and provides reliable guarantee for safe destruction of commercial secret.

The application provides an EPC tunneling encoding method and system for improving the identification reliability of an RFID tag. The method comprises the following steps: performing lightweight forward error correction encoding on standard EPC information to obtain redundant error correction EPC data containing a redundant protection structure; writing the data into an RFID tag; performing an interactive process between a reader and the RFID tag to read the redundant error correction EPC data and perform decoding operation, and recovering the standard EPC information by using the redundant information; performing cyclic redundancy check on the standard EPC information, and if the check is passed, uploading the standard EPC information to an upper application, otherwise, retriggering the interactive process. By using the EPC tunneling encoding method, the EPC transmission reliability is improved without modifying the protocol and the tag hardware, and the energy consumption of the tag retransmission, the system communication overhead and the throughput are reduced.

This invention provides a gaming machine that partially unifies the backup and recovery process, which restores predetermined information to its pre-game state, with the backup process, which backs up the predetermined information, thereby reducing the pressure on the program area capacity of the main ROM. [Solution] In the game start state control process of the main process, a backup of various information is acquired, and further, in the game end state control process of the main process, a process is provided to restore the backed-up various information according to predetermined conditions. In this process, when backing up and when restoring the various information, the values ​​of the registers that store the addresses of the respective data storage areas are swapped, thereby making some of the programs common.

The application discloses a kind of photonic terahertz communication systems based on semantic compression and weight hierarchical modulation, the external cavity laser ECL1 of the sending end is connected with IQ modulator, provides continuous optical carrier;IQ modulator is simultaneously connected to TX-DSP module, and the compressed sub-block of image is generated by applying semantic compression method, after weight evaluation, compressed sub-block is modulated to basic layer and additional layer in descending order respectively, and SCHM-QAM constellation point baseband signal is obtained, drive IQ modulator to modulate optical carrier, and be coupled with the continuous light wave that external cavity laser ECL2 outputs, after transmission to amplifier, input to single row carrier photoelectric detector and beat frequency, and terahertz signal is obtained, after receiving end receives terahertz signal and local signal are mixed, and after obtaining base frequency signal, input to RX-DSP module, weight hierarchical demodulation and semantic decompression etc. Operation, and the original data is obtained.The application removes redundant information and improves transmission efficiency, improves system transmission capacity, and guarantees information recovery quality.

The application relates to a service recovery method, system and device. The method comprises the following steps: a target server receives an access reconnection request of a client to a target file; the access reconnection request carries file access information of the client and a request type of the target file; the target file is a file requested by the client to access a fault server when no fault switching occurs; the file access information is assembled according to the request type; and the access of the client to the target file is recovered according to the assembled file access information. The target server is a server which undertakes file sharing service of the fault server. The method can improve the processing performance of the server.

This invention relates to the fields of data processing and information security technology, and discloses a method and system for embedding and identifying source fingerprints of standard data with anti-interference capabilities. The method first models the layout boundaries, partition boundaries, field areas, table cell areas, or predefined anchor areas of the standard data to obtain multiple standardized target areas and corresponding area indices. Then, it generates region-level synchronous index reference information based on the spatial distribution relationship of each standardized target area, and embeds it into the corresponding areas after binding it with the corresponding fingerprint fragments. During identification, interference analysis is performed on the standard data to be identified. Based on the region-level synchronous index reference information, the correspondence between the area index and spatial location of each standardized target area is restored. After completing the area reconstruction, the corresponding fingerprint fragments are extracted, and index consistency verification and source matching are performed, thereby improving the stability and accuracy of source identification under conditions of cropping, rotation, scaling, resampling, compression, screenshotting, or printing / scanning.

This invention discloses a method and system for recovering high-order time-frequency domain information of bridge displacement. The method includes: using microwave radar to perform coprime sampling on the displacement signal of the bridge structure to obtain two sampled sub-signals; constructing a measurement signal and a measurement matrix from the two sampled sub-signals; further constructing a sensing matrix by combining discrete Fourier transform sparse basis; then optimizing the measurement matrix using Gram matrix and Welch bounds; and finally, decompressing the signal based on the orthogonal matching pursuit algorithm to obtain the high-order time-frequency domain displacement signal of the measured bridge structure. This method can realize the recovery of high-order time-frequency domain information of the displacement of the measured bridge structure.

The application discloses a kind of diffractive metasurface full stokes polarimetric spectrum detection system and method, belong to micro-nano optics and polarimetric spectrum detection technical field, the technical problem to be solved is the detection and reconstruction of polarimetric spectrum information, technical solution points are: optical coding module includes diffractive metasurface, the diffractive metasurface includes nanometer column arranged according to preset rule, for polarized multiplexing phase modulation and spectral dispersion coding to incident light, different polarization state and wavelength incident light information is converted into spatial diffraction distribution;Photoelectric conversion module is located on the diffraction light path of the diffractive metasurface, for single exposure recording the diffraction distribution, generates two-dimensional original intensity image;Information recovery module is connected with the photoelectric conversion module, built-in pre-trained deep learning model, for the full stokes polarimetric spectrum information of incident light in the two-dimensional original intensity image is decoupled and recovered.

The defect detection method and device based on a defect detection model, and the computer program product, the defect detection method comprising: acquiring an image of an object to be detected; inputting the image of the object to be detected into an encoder for multi-scale feature extraction to obtain a first feature map of multiple layers with different resolutions; inputting the first feature map of multiple layers with different resolutions into a decoder for fusion, and performing dimensionality lifting and information recovery using the fused features to obtain a fused feature map; using the fused feature map by a classification head module to perform pixel-level classification prediction to obtain a defect segmentation result, the defect segmentation result comprising a classification result of whether each pixel in the image of the object to be detected belongs to a defect pixel; and determining a defect region based on the defect pixel. Since the defect detection model is composed of an encoder, a decoder and a classification head module, the structure is relatively simple, the model can be lightened, the calculation speed is improved, and the time consumption of the hyperparameter optimization process is reduced.

The aim is to make it easy for users to reuse customized screens that they have edited. [Solution] The system performs a display process to show a customization screen, a command output process to output a corresponding command when an operator displayed on the customization screen is operated, an editing process to allow the addition of operators displayed on the customization screen, a save command reception process to receive a save command, a code information display process to show code information that allows the customization screen to be restored when a save command is received, and a customization screen restoration process to restore the customization screen based on the code information read by the camera.

This invention discloses a chaotic communication system and signal detection method based on multi-domain orthogonal code indexing, belonging to the field of wireless communication and intelligent signal processing technology. The system includes a transmitter, a wireless channel, and a receiver. The transmitter first divides the input bitstream to obtain domain index information, code index information, and modulation information; then, it selects the corresponding orthogonal code domain based on the domain index information and the corresponding orthogonal codeword based on the code index information; it generates a chaotic sequence using Chebyshev mapping and constructs an orthogonal chaotic sequence pool using the Gram-Schmidt orthogonalization method; finally, it combines M-ary DCSK modulation and a multi-carrier, multi-slot transmission structure to form the transmitted signal. The receiver demodulates, filters, and samples the received signal, then inputs the time-domain features into a multi-task convolutional neural network for joint detection, realizing the recovery of the domain index, code index, and modulation information. This invention, by introducing a multi-domain orthogonal code indexing and deep learning joint detection mechanism, effectively improves the system's spectral efficiency, error rate performance, and physical layer security performance, making it suitable for wireless secure communication, IoT communication, and data transmission scenarios in complex wireless channel environments.

This invention discloses a machine learning-based 3D radar positioning anti-interference method, belonging to the field of radar signal processing and machine learning technology. The method includes: acquiring multiple frames of radar echo signals, extracting local point cloud fragments of the obscured target and the global point cloud of the unobscured reference target; inputting the local point cloud fragments and the global point cloud into a spatiotemporal attention graph neural network, calculating the implicit structural association weight between them through a cross-target attention module; transferring geometric features from the global point cloud to the local point cloud fragments based on this weight, generating a complete implicit neural field representation of the obscured target; and using this representation to perform raycasting decoding on the three-dimensional spatial position of the obscured target to obtain the anti-interference 3D radar positioning coordinates. This invention can effectively utilize the global structural information of the unobscured target to recover the complete geometry of the obscured target, improving the positioning accuracy and robustness of radar under obscuration interference.

A method for backing up data includes: determining a storage tier for storing the data; determining a data access frequency of the data, where the data access frequency indicates a frequency at which the data is accessed; and taking information of the storage tier and the data access frequency of the data as metadata, and sending the metadata and the data to a backup server. By sending the information including the storage tier for storing the data and the data access frequency as the metadata to the backup server, the computing device is enabled to recover the data by using the information in the metadata during the data recovery process, so that the data tiering layout can be maintained in the storage region to maintain the storage service performance, and thus a seamless storage service is provided to improve the user experience.

A method and system for inferring building interior layout and generating BIM digital twin models based on external point clouds are disclosed, relating to the fields of building information modeling and point cloud processing technology. Addressing the problem that it is difficult to reconstruct the internal layout from external building observation information alone, and even more difficult to further form a complete BIM model usable for application analysis, the method specifically includes: acquiring and preprocessing the building's external point cloud, attitude correction, and facade clustering; generating semantically enhanced point clouds through projection, rasterization, and semantic parsing, and extracting point cloud slices to obtain a regularized external plan layout; constructing a network input containing external structural tensors and potential grid priors, and inferring a complete plan containing walls, doors, windows, and rooms through a multi-branch generative adversarial network; generating a complete BIM digital twin model through single-layer 3D extrusion, floor information recovery, and multi-layer BIM instantiation. This invention enables automated processing from building external point clouds to internal layout reconstruction and multi-layer BIM model generation.