85 results about "Level mapping" patented technology

The present invention relates to a method for processing and presenting at least a first image (102) and a second image (103), these images being digital medical images. A first step in the method is performing image registration between the first image (102) and the second image (103) to generate a pixel-level mapping between both images. The registration takes into account a region-level correspondence between the first image (102) and the second image (103) A second step is presenting the first image (102) and the second image (103) simultaneously on a display (103). A third step is presenting a first magnification (104) of a region of interest (106) in the first image (102) and a second magnification (105) of a corresponding region (108) in the second image (103). The corresponding region (108) in the second image (103) being determined based on the pixel-level mapping.

A computer-implemented method for use with an extensible markup language (XML) document includes inputting a high-level mapping specification for a schema mapping; and generating a target XML document based on the mapping. The method may perform schema mapping-based XML transformation as a three-phase process comprising tuple extraction, XML-fragment generation, and data merging. The tuple extraction phase may be adapted to handle streamed XML data (as well as stored/indexed XML data). The data merging phase may use a hybrid method that can dynamically switch between main memory-based and disk-based algorithms based on the size of the XML data to be merged.

The invention discloses a service quality monitoring platform and method of Internet of things based on big data. The monitoring platform comprises a data acquisition unit, a data processing unit, a service quality monitoring unit, an abnormality early warning unit and abnormality locating unit, wherein the data processing unit is used for establishing a two-level mapping relationship between a KPI and an abnormal cause; the service quality monitoring unit is used for calculating the dynamic threshold value of the key KPI of each cell, and generating an industry number key KPI report with hourgranularity; the abnormality early warning unit is used for comparing KPI data in the industry number key KPI report with a dynamic threshold value corresponding to a monitoring period, and outputting an abnormal user number; and the abnormality locating unit is used for locating the cause of KPI abnormality according to the confidence level of the mapping relationship. Through adoption of the service quality monitoring platform and method, real-time detection and location of service quality problems can be realized, and a service department is supported to grasp the service volume and activity of an Internet of Things card in time. Moreover, the information security risk is detected and evaluated in order to perform effective intervention immediately.

A method for performing a fault estimation based on residuals of detected signals includes: determining an operating regime based on a plurality of parameters; extracting predetermined noise standard deviations of the residuals corresponding to said operating regime and scaling the residuals; calculating a magnitude of a measurement vector of the scaled residuals and comparing the magnitude to a decision threshold value; extracting a mean direction and a fault level mapping for each of a plurality of fault types, based on the operating regime; calculating a projection of the measurement vector onto the mean direction of each of the plurality of fault types; determining a fault type based on which projection is maximum; and mapping the projection to a continuous-valued fault level using a lookup table.

Method and apparatus are provided for presenting various levels of detail about successful error recoveries and background hardware optimizations during the recording and retrieval of digital information on magnetic tape. A first, Band Summary, report presents a high-level summary of recovery methods by data band and wrap. A second, Detail Summary, report presents a mid-level summary of recovery methods by track and longitudinal position (LPOS) region within one wrap of a band on the tape. A third, ERP Summary, report presents a low-level summary of errors and specific recovery methods and optimizations by LPOS region within each wrap. Such “telescoping” views permit pattern analysis to be performed at different resolutions. Thus, correlations of possible interactions between hardware and microcode activities that result in changes of the nominal operating point of the drive may be identified. Possible failure patterns may also be identified and fed back to design personnel and incorporated in microcode design changes for more effective ERP.

The invention discloses a method for power-down protection of a storage system, a storage controller and electronic equipment, relates to the technical field of communications, and can solve the problem that the storage system needs to spend a lot of time on recovering mapping relations. The method comprises the steps that when previous disconnection of a CPU belongs to abnormal disconnection, the storage controller determines index information in second-level and third-level mapping lists level by level according to index information of a first-level mapping list and reads mapping relations of all the data in a log cache area, as well as mapping relations of all the data in a log area; the acquired mapping relations are sent to the CPU; and when the mapping relation of at least one piece of data in the log cache area or the mapping relation in the log area is different from the mapping relation in the third-level mapping list, the storage controller will replace the mapping relation in the third-level mapping list, update the index information of the second-level and first-level mapping lists level by level and store the updated mapping relation which is changed before and after updating in the second-level mapping list to a DRAM. The method disclosed by the invention is applicable to the storage system.

The invention discloses a method and a kind of electronic equipment for forming, updating and recovering a mapping table, wherein the mapping table comprises a first-level mapping table and a second-level mapping table, and the formation method comprises that all the logic pages from a host are mapped into physical pages of an NAND on a solid-state storage through page-level mapping to form the second-level mapping table; and a first physical address is acquired, the first physical address is a physical storage address of a first block in the second-level mapping table, the first physical address and corresponding first identification information form a mapping relation in a mapping unit of the first-level mapping table, and the first identification information is identification information of the first block.

Suitable for the memory field, the invention provides three-layer flash-memory devices, an intelligent storage switch and three-layer controllers. A solid-state hard disk is provided with the intelligent storage switch for recycling the waste and utilizing the flash memory storage deleted by deletion from the segment data capacity. The extra storage beyond the segment data capacity is accessed in an undivided scattered data manner. When more bad blocks appear over time, the segment date capacity is reduced. A first-level mapping graph stores the segment data and scattered data capacity of all flash-memory channels and maps the scattered data and the segment data. Each flash-memory channel is provided with a NVMD, which is provided with a controller of relatively low level, wherein the controller converts the LBA to the PBA used for accessing a flash memory in the NVMD. Each NVMD performs the wear balance and the bad block remapping. The NVMD enables to recycle source flash-memory blocks and shadow flash-memory blocks. A two-level intelligent storage switch can start a three-level controller.

The invention discloses a method and device for conducting data reading and writing on a storage device. The method for conducting data writing on the storage device comprises the steps that an unused bit of a circulation bitmap in a system table is selected, a new user data page and a new address mapping page are allocated, data to be written are written to the new user data page, a physical page number of the new user data page is written to the new address mapping page, the physical page number of the new address mapping page is written to the system table, and the system table is written to the storage device. The method for conducting data reading on the storage device comprises the steps that the physical page number of the address mapping page is obtained from the system table, the physical page number of the user data page is obtained from the address mapping page, and data needing to be read are obtained from the user data page. According to the technical scheme, data reading and writing are conducted according to the two-level mapping relation of the system table, the address mapping page and the user data page, power-down can be avoided through management of the circulation bitmap, the frequency for erasing the storage device is reduced through a cache mechanism, and abrasion balance is achieved.

The invention discloses an HDR (High Dynamic Range) video generation method applicable to an LDR (Low Dynamic Range) video. The HDR video generation method comprises the following steps of: (1), converting a normal exposure image into a pseudo-exposure image having different brightness, and obtaining an HDR image of a first-frame LDR image for the LDR video; (2), inputting a vector x and a vector y, determining advantages and disadvantages of a fitted curve by judging the size of a mean-square error so as to find out a fitted curve having the minimum MSE, and correcting the generated fitted curve so as to find out an optimal fitted curve used as a curve fitting result between the LDR image and the HDR image; and (3), performing corresponding pixel-level mapping of each frame of the input LDR video by utilizing the optimal fitted curve so as to obtain the final HDR video sequence. Compared with the prior art, the complexity of the HDR video generation method disclosed by the invention is low; real-time conversion from the LDR video to the HDR video can be realized better; colour information of the generated HDR video relatively accords with human eye visual features; details are relatively clear; and included information are relatively enriched.

A memory address translation method for flash storage system is disclosed. There are two level mapping tables to reduce overhead of mapping table management. In level-one mapping table, each entry contains two kinds of information, which one is the validation of this entry, called Valid Mark and the other is the location of level-two mapping. The level-one mapping table is always located on RAM, and never saved into flash memory. In level-two mapping table, each entry contains two kinds of information, which one is the validation of this entry and the other is the physical location of data in flash memory. The physical addresses of both data and level-two mapping table are dynamically determined. Level-two mapping table is loaded to RAM when it is needed to reference, and is saved into flash memory periodically if the content is updated.

The embodiment of the invention discloses an image brightness adjustment method and device, a storage medium and a terminal. The method comprises the steps of obtaining a to-be-processed image; Performing scene recognition on the image, and determining the scene type of the image; Inputting the image into a brightness level mapping model corresponding to the scene type; Determining a brightness level corresponding to the image according to an output result of a brightness level mapping model; And carrying out brightness adjustment on the image based on the scene category and the brightness level to generate a brightness-adjusted target image. By adopting the technical scheme, the image brightness is adaptively adjusted according to the scene of the image and the brightness level of the image, a better effect can be achieved on the images with different scenes and different brightness levels, and the applicability of image brightness adjustment is improved. Meanwhile, the brightness level of the image can be simply, rapidly and accurately determined based on the pre-trained brightness level mapping model, and the image brightness adjustment efficiency is improved.

The invention discloses mapping table forming and loading methods and an electronic device. The forming method comprises: mapping a logic page from a host into a physical page of NAND on a solid state memory by using page-level mapping to form a secondary mapping table; obtaining a first physical address, wherein the first physical address is a physical memory address of a first block in the secondary mapping table; and forming a mapping relationship between the first physical address and corresponding first identification information in a mapping unit of a primary mapping table, wherein the first identification information is identification information of the first block, each mapping unit in the primary mapping table contains Q flag bits, and the flag bits are used for indicating historical access information of the block.

The embodiment of the invention relates to the field of text classification, and discloses a method for realizing Chinese text classification and related equipment, and the method comprises the following steps of carrying out semantic expansion on a Chinese short text by using a Chinese pinyin sequence, and establishing a character mapping matrix and a word-level mapping matrix by using a word vector; carrying out convolution and downsampling operation on the character mapping matrix and the word-level mapping matrix to automatically extract a local feature vector of the Chinese short text; and after the local feature vectors are connected in series and fused, adding the local feature vectors into a normalized Softmax classifier to realize classification of the Chinese short text. Thus, based on the convolutional neural network model with the character mapping matrix and the word-level mapping matrix as joint input, the defect that the standard convolutional neural network is single indimension can be effectively overcome, the context information characteristics of the Chinese short text are extracted more sufficiently, and a classification result with higher accuracy is obtained.

The present invention is directed to a bit-level memory controller and method adaptable to managing defect bits of a non-volatile memory. A bad column management (BCM) unit retrieves a bit-level mapping table, in which defect bits are respectively marked, based on which the BCM unit constructs a bit-level script (BLS) that contains a plurality of entries denoting defect-bit groups respectively. An internal buffer is configured to store data managed by the BCM unit according to the BLS.

The invention provides a dynamic two-level cache flash memory translation layer address mapping method based on page-level mapping, and solves the problems that the current page-level address mappingcannot fully utilize sequential I/O locality and the I/O performance is reduced when a large number of random I/Os exist. According to the method, time locality and space locality of sequential I/O are utilized; a first-level cache L1Cache and a second-level cache L2Cache are set respectively, different cache management strategies are adopted on the two-level cache, the first-level cache L1Cache is used for caching a single address mapping item, and the second-level cache L2Cache is used for caching the whole mapping page; detecting a certain number of current I/O requests on the second-levelcache by adopting a spatial locality detection method, and extracting a corresponding mapping page into the second-level cache L2Cache if detecting that the current I/O requests have relatively high spatial locality; and meanwhile, the first-level cache L1 Cache dynamically adjusts the size of the first-level cache according to the cache hit rate, so that the I/O performance in a random I/O mode is ensured.

The invention discloses a multi-queue based scheduling method, which comprises the following steps: according to a multi-level stream classification strategy, performing circuit level mapping, user level mapping and/or service level mapping on a data packet, and putting the data packet in a mapping queue; and performing the scheduling in the circuit level, the user level and/or the service level according to a multi-queue scheduling algorithm. The invention also discloses a multi-queue based scheduling system, which comprises a multi-level strategy mapping module, a queue management module and a multi-level scheduling module, wherein the multi-level strategy mapping module is used for performing the circuit level mapping, the user level mapping and/or the service level mapping according to the multi-level stream classification strategy; the queue management module is connected with the multi-level strategy mapping module, and is used for putting the data packet in the mapping queue; and the multi-level scheduling module is connected with the queue management module, and is used for performing the scheduling in the circuit level, the user level and/or the service level according tothe multi-queue scheduling algorithm. Therefore, the method and the system can schedule data in the circuit level, the user level and the service level, realize complex traffic scheduling, and meet the increasingly complex QoS requirement.

The invention discloses a method for avoiding repeated storage of content in distributed cache cooperation. The method comprises the steps as follows: using a binary identifying method to perform binary identification on content data blocks; establishing two-level logic mapping tables based on the binary identification of the content data blocks to organize caching content, and performing cache cooperation on the caching content based on distributed Hash operation; receiving a request for a certain content data block from the external by an edge content router, forwarding the request to an internal node which is in charge of storing the content via two-stage routing, transmitting the data block with the node which is in charge of the corresponding content data block to the edge content router, and updating cache replacement control state information of corresponding items of the two-level mapping tables; and receiving a certain data block from the external by the edge content router, forwarding the data block to an internal node which is in charge of storing the content through two-stage routing, and establishing corresponding two-level mapping relationships in the routing forwarding process.. The method of the invention could avoid repeated storage of the content, thereby reducing network flow and improving user experience.

The invention discloses a power load abnormal data recognition and modification method based on nonparametric regression analysis. The method comprises the steps of 1, performing power utilization mode classification on power load data to obtain a common power utilization mode data set and a special power utilization mode data set; 2, extracting a load feature value at each moment from the obtained common power utilization mode data set by adopting a nonparametric regression analysis method; 3, forming an abnormal data field by using the extracted load feature values according to the selected confidence level; 4, performing load abnormal data recognition on load data in the common power utilization mode data set and the special power utilization mode data set by using the abnormal data field formed in step 3; and 5, modifying the recognized load abnormal value by using an improved introduced load level mapping relation and a weighted mean method considering the influence of feature values. The method can recognize and modify power load abnormal data including big industrial power load data, and simultaneously can overcome the defect of the load abnormal data recognition and modification theory on the aspect of power load data processing.

The present invention discloses a display panel driving device and a driving method thereof, wherein the display panel driving device includes a plurality of mapping table units and a source driver. The mapping table units receive a plurality of primary color signals respectively, and convert grayscale levels of the primary colors into a plurality of mapping grayscale level values corresponding to a single gamma curve according to the grayscale level mapping relation between the single gamma curve and a plurality of primary color gamma curves. The source driver is electrically connected to the mapping table units to receive the mapping grayscale level values generated by the mapping table units, and convert the mapping grayscale level values into a plurality of driving voltages according to the relation between grayscale levels and voltages of the single gamma curve for inputting the driving voltages into a display panel.

The invention is suitable for the field of medical apparatuses and discloses a method and a system for improving pitch sensing ability of an artificial cochlea. The method for improving the pitch sensing ability of the artificial cochlea includes a base frequency (F0) processing process and a loudness regulating process, wherein the base frequency (F0) processing process includes that extracting a real-time base frequency (F0) from a gathered sound signal, substituting the extracted base frequency (F0) into a pre-generated 'F0-sound level mapping function S (F0)', calculating to obtain an S(F0) function value, substituting the S(F0) function value into a formula, and calculating to obtain a gain function value; the loudness regulating process includes that multiplying the gain function value with a signal to be regulated so as to regulate the loudness of a time domain sound signal. The method and system for improving the pitch sensing ability of the artificial cochlea are capable of improving the pitch sensing ability of an artificial cochlea user in the aspects of melody, pronunciation and intonation, Chinese tone and the like through processing the base frequency (F0) and using the base frequency for the loudness regulation when the pitch sensing ability of the user is low.