30 results about "Fusion frame" patented technology

The invention discloses a stock market investment decision-making method based on network analysis and multi-model fusion. The method includes the steps that fundamental information is grabbed from a network and then network nodes and network connection are constructed; a complex social network model is constructed; an investment portfolio is selected by means of a network analysis method and then data involved in the investment portfolio are input into a multi-model fusion frame, wherein the multi-model fusion frame comprises a plurality of sub-models; all the sub-models conduct market trend prediction with different characteristics according to technical information of different characteristics grabbed in the network generate predicted values of the corresponding sub-models, the predicted values are weighted and summated to obtain a comprehensive market trend predicted value, and then corresponding investment strategies are generated according to the comprehensive market trend predicted value. According to the method, risk factors, which are ignored in general researches, of the investment portfolio are comprehensively considered from multiple angles, real-time requirements of the strategies are guaranteed through the methods such as dimension reduction data preselection of fundamentals and technical feature selection, and consequently the more reliable investment strategies are provided.

A system and process for tracking an object state over time using particle filter sensor fusion and a plurality of logical sensor modules is presented. This new fusion framework combines both the bottom-up and top-down approaches to sensor fusion to probabilistically fuse multiple sensing modalities. At the lower level, individual vision and audio trackers can be designed to generate effective proposals for the fuser. At the higher level, the fuser performs reliable tracking by verifying hypotheses over multiple likelihood models from multiple cues. Different from the traditional fusion algorithms, the present framework is a closed-loop system where the fuser and trackers coordinate their tracking information. Furthermore, to handle non-stationary situations, the present framework evaluates the performance of the individual trackers and dynamically updates their object states. A real-time speaker tracking system based on the proposed framework is feasible by fusing object contour, color and sound source location.

The invention discloses a multisource navigation information fusion method based on a factor graph. The multisource navigation information fusion method comprises the following steps: firstly obtaining a track meeting the actual environment and task requirement by carrying out track setting, obtaining sensor measurement information by virtue of various sensors, obtaining inertial navigation IMU data by virtue of an inertia measurement unit, constructing a multisource navigation information fusion frame by virtue of the factor graph, and finally obtaining navigation information through multisource information filtering fusion. The multisource navigation information fusion method disclosed by the invention has the advantages that the factor graph and a multisource information fusion algorithm are combined together and processing on asynchronous measurement information and requirement on navigation accuracy are realized.

The invention discloses a complex background SAR vehicle target detection method based on CNN, comprising the following steps: S1, collecting pattern data and processing to obtain sample data set; S2,ResNet and Faster-RCNN framework is fused to form a fusion framework, and the fusion framework is retrained on the basis of pre-training weights; S3, adopting the fusion frame after retraining to carry out target detection and recognition on the pattern data; the invention combines ResNet and Faster-RCNN framework, using Faster-RCNN framework realizes the end-to-end target detection process to realize the full automation of target detection, which is convenient for engineering application. At the same time, the residual network model is used to solve the problem of network model degradation in depth convolution network model, and the phenomenon of gradient disappearance in depth convolution network model is avoided.

The invention discloses a cervical cell pathological slice image pathological cell identification method and system based on cell mass, which comprises the following steps: extracting a single cell mass region on the cervical pathological slice image; extracting the single cell mass region on the cervical pathological slice image; counting the size of the cell mass region, and treating the cell mass whose size exceeds a predetermined threshold value as a super-large cell mass; the superlarge cell mass being divided into daughter cell mass; the region to be recognized being obtained by boundaryfilling treatment of the cell cluster region other than the super-large cell cluster and the daughter cell cluster obtained by splitting; a lesion cell being identified in that region to be identified. The invention aims at the whole slice image of the massive pixels, takes the cell cluster as the processing and recognition unit, instead of the conventional image partition and fusion frame, whichis more suitable for the characteristics of the cervical cell pathological slice image, and improves the efficiency and the precision at the same time.

The invention discloses a T wave dynamic modeling and multi channel estimation fusion method. Aiming to solve the problems of T wave asymmetry, beat-to-beat dynamic change, myoelectricity pulses in highly dynamic monitoring environment and electrode pulse noise interference, a T wave state space model adaptive to the beat-to-beat dynamic estimation is provided, on the basis of extended Kalman filter, a multi-channel T wave estimation fusion frame is established, T wave parameters with eight independent channels are combined, and T wave robustness estimation in strong noise background can be implemented. The method has the advantages that the sectional characteristics of electrocardiosignals are utilized completely, an analysis module adaptive to asymmetrical T wave estimation is established, the T wave analysis presentation is utilized, the T wave data with eight independent channels are fused completely, the robustness of the T wave beat-to-beat dynamic estimation is improved, and necessary theoretical and technical basis is provided for beat-to-beat detection and estimation of T wave alternating signals in the highly dynamic monitoring environment.

The invention discloses a subnet fusion method for a single-channel time division multiple access (TDMA) ad-hoc network, and solves problems that subnets of a single-channel time division multiple access (TDMA) ad-hoc network in the prior art needs a control channel for communication and carry out the communication through a gateway node. The thinking of the invention is that the method comprises the steps: carrying out the dividing of an edge node group according to the geographic position information and the topological information of the subnets, and carrying out the dividing of a fusion time slot group, wherein the edge nodes select fusion time slots in the fusion time slot group, transmits fusion frames at the occupied fusion time slots, and judging whether to carry out the fusion with other subnets or not after receiving the fusion frames from other subnets; selecting the fusion subnets and then carrying out the node synchronization; selecting data time slots, and completing the fusion process of the subnets. Through the employing of different unoccupied time slot occupying methods and the dividing of the edge node group, the method can effectively reduce the energy consumption of a system, reduces the fusion time, and improves the stability of the fusion process.

The invention discloses a fusion frame processing method and terminal. The method comprises the following steps: after a sub-frame is received, analyzing the sub-frame, and acquiring PDCCH information of the sub-frame, wherein the PDCCH information contains types of one or more sub-frames behind the sub-frame; determining the types of one or more sub-frames behind the sub-frame according to the PDCCH information, wherein the type of the sub-frame is used for indicating the sub-frame as an uplink sub-frame or a downlink sub-frame; and sequentially sending or receiving the uplink/downlink sub-frames behind the sub-frame according to the types of the one or more sub-frames behind the sub-frame.

The invention discloses an autonomous system sensing method and system based on multi-modal fusion, and the method comprises the steps: obtaining data collected by sensors of a plurality of vehicles, processing the data collected by the sensors through employing a trained multi-modal data fusion frame, fusing the processed results, obtaining a primary fusion result, processing the primary fusion result based on a target recognition service, retaining region-of-interest information, constructing a cooperation-level fusion architecture by using an existing multi-view fusion algorithm, performing secondary fusion on the region-of-interest information uploaded by a plurality of vehicles to obtain a secondary fusion result, and issuing the secondary fusion result to the vehicles so that the vehicles can make control decisions according to the secondary fusion result. According to the method and system, the vehicle cascade cooperation data fusion framework is constructed, the environment view can be improved and expanded through the cascade framework, the view limitation of a single automatic driving vehicle is solved, the uncertainty is reduced, and the performance of a sensing algorithm is improved.

The invention discloses a fusion frame obtaining method, and the method comprises the following steps: obtaining N target images of a target region through N cameras, N being a positive integer greater than or equal to 2; performing feature extraction on the N target images to obtain a feature point set; obtaining a hash table based on the feature point set; obtaining a map point set based on thehash table; obtaining a description subset based on the hash table; and obtaining a fusion frame based on the hash table, the map point set and the description subset. The invention further disclosesa fusion frame obtaining device, an SLAM system and a storage medium. The fusion frame obtained through the method comprises more visual feature information, so that the accuracy of the fusion frame is better.

The invention relates to a method and device for improving the definition of a static photographing picture of a camera and electronic equipment. The method comprises: recording multiple frames of images formed in the focusing search process; dividing each frame in the multiple frames of images into a first block and at least one second block; counting the definition of the first block and the definition of each second block of each frame in the multi-frame image; selecting a frame with the highest definition of the first block as a base frame; in the second blocks at the same position in different frames, selecting the frame with the highest definition as a fusion frame of the second block at the position; and fusing the basic frame and the at least one fusion frame to form an image. According to the present invention, based on the existing hardware capability, through the fusion of the base frame and the fusion frame, the definition level of static image shooting is improved.

The invention provides an intrusion detection method and device based on deep learning under a hyper-converged architecture and a storage medium, and relates to the technical field of intrusion detection.The detection method is applied to a virtualization kernel layer of the hyper-converged architecture and comprises the steps that network traffic entering and exiting a virtual machine is captured, IP/MAC address verification is conducted on the network traffic, then related traffic features are extracted, a deep learning model trained by a CICIDS2017 data set is utilized to analyze feature values, so that low-overhead and high-precision DDoS attack detection under the hyper-fusion architecture is realized. Particularly, in order to reduce redundant information, an improved binary cuckoo algorithm is adopted to select features, and while the detection precision is ensured, the size of a deep learning model is reduced, and the extraction time of network traffic features is shortened.

The invention relates to a PCB lamination and fusion anti-wrinkling method, which comprises the steps of lamination: laminating and fixing various layers of boards required to be pressed-fit for a PCBonto an operation table of a press machine; fusion frame arrangement: placing a fusion frame on the side of the laminated boards; fusion block arrangement: arranging fusion blocks in a mesh form in aclosed area formed by the fusion frame and the side of the boards; prepreg arrangement: arranging prepregs on the surface of the fusion blocks; copper foil laying: laying a whole piece of copper foilon the surfaces of the boards, fusion frame and the prepregs; press-fit process; and cutting: after the press-fit is completed, cutting the edge of the boards and cutting the fusion frame and the fusion blocks and the prepregs in the fusion frame partially to complete the PCB lamination and fusion. Through the mesh graphic design with a specific effect, the heat loss is reduced, meanwhile, the support area is increased to avoid wrinkling of the copper foil, a large support area cooperates with the prepregs and increases the integration of the fusion zone at the same time, and the fusion graphic frame adopts the copper sheet design to avoid wrinkled extension.

The invention provides an electric quantity missing value filling method based on a multi-parameter internet-of-things fusion technology, and relates to the technical field of electric power metering. The method comprises the following steps: building a multi-parameter internet-of-things fusion frame, and collecting known attribute data related to the electric quantity; acquiring electric quantity data; performing noise reduction on the data, then calculating a correlation coefficient value between each piece of known attribute data and the electric quantity data, screening out the known attribute data of which the correlation coefficient value is greater than a threshold value and performing subsequent steps, and enabling the rest of the known attribute data not to participate in the subsequent steps; performing clustering analysis on the known attribute data to obtain a similar scene set of the known attribute data; calculating the weight of each piece of known attribute data; calculating the similarity, and calculating the comprehensive similarity by combining the weights; and searching a time period with the highest comprehensive similarity, and selecting the electric quantity data of the time period to carry out missing value filling. The accuracy of missing value filling is improved by fully utilizing the electric quantity related attribute data.

The embodiment of the invention provides a streaming coding and speech recognition method and device, electronic equipment and a storage medium. The streaming coding method comprises the following steps: determining a third transformation sequence of a historical reference frame sequence based on a second transformation sequence of a previous fused frame sequence; performing splicing processing based on the first transformation sequence and the third transformation sequence to obtain a fourth transformation sequence of the current fusion frame sequence; determining at least one of a source sequence and a context sequence for an attention mechanism based on the fourth transformed sequence; and performing streaming coding on the current frame sequence based on the source sequence and the context sequence. The third transformation sequence of the historical reference frame sequence is determined based on the second transformation sequence of the previous fusion frame sequence, so that the data processing amount required by the change processing of the historical reference frame sequence in the linear transformation processing process is reduced, the data processing efficiency is improved, and the computing power requirement of equipment is reduced.

The invention discloses a demosaicing and compression fusion frame for an MSFA hyperspectral image. The demosaicing and compression fusion frame comprises a PPI image generation module, a compression and decompression module and a rapid demosaicing module. The PPI image generation module obtains various features in the Raw image by using a DPG-Net network, carries out image reconstruction according to the features, outputs the reconstructed image and generates a PPI image; the compression and decompression module is used for compressing and decompressing the Raw graph and the PPI graph and reducing the size of a compressed file and the complexity of an algorithm; the rapid demosaicing module firstly separates spectrum channels of the Raw graph and the PPI graph; subtracting the separated Raw graph from the PPI graph; and carrying out convolution on the difference between the two images, and adding the image after convolution with the PPI to obtain a final demosaiced image. The frame provided by the invention has the characteristics of high compression rate and high demosaicing speed at the decompression end.