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67 results about "Residual Blocks" patented technology

Hadamard transform screen-resistant watermarking method based on deep learning

This invention discloses a deep learning-based Hadamard transform-based anti-screen-capture watermarking method, belonging to the field of watermarking technology. This invention combines a convolutional neural network (CNN) and residual blocks to achieve an end-to-end process of watermark embedding and extraction within the Hadamard domain. By simulating screen-capture attacks and incorporating this method between the embedding and extraction layers, the network ensures robust watermark embedding. This method can efficiently extract watermark information from photos taken by surreptitiously, protecting the copyright of digital media. The use of the transform domain for watermark embedding allows the watermark to spread over a wider area of ​​the image, significantly improving the robustness of the watermarking algorithm. Comparison with related technologies demonstrates the superiority of this invention in terms of imperceptibility and robustness.
Owner:HANGZHOU DIANZI UNIV

Adaptive edge-aware three-dimensional medical image segmentation method

This invention discloses an adaptive edge-aware 3D medical image segmentation method, with the following specific steps: S1, constructing an adaptive edge-aware network, which includes an encoder and a decoder, with a skip connection between the encoder and decoder; S2, acquiring and processing a 3D medical image; S3, inputting the preprocessed image from step S2 into the encoder of the adaptive edge-aware network through a patch partitioning layer, then into the decoder through residual blocks and adaptive weight matching blocks. The decoder output and the original input image are skip-connected through adaptive weight matching blocks, and finally, the image segmentation result is output through residual blocks and Fourier convolution. This invention exhibits stronger robustness and boundary accuracy in multi-organ 3D segmentation tasks, providing an efficient and scalable solution for medical image segmentation.
Owner:ZHEJIANG SCI-TECH UNIV

A dynamic obstacle avoidance method for assisting the blind

This invention discloses a dynamic obstacle avoidance method for assistive visually impaired scenarios. First, a feature extraction module based on a hierarchical residual structure constructed within residual blocks is built, which expands the receptive field of deep features. Second, a spatial feature recovery module based on bilinear interpolation and transposed convolution upsampling is designed to make segmentation edges more accurate. Third, a discrete sampling strategy is used to extract obstacle category, distance, and contour information, and path planning is performed using a heuristic search algorithm considering safe distance constraints. Finally, priority rules and logical order rules for the obstacle avoidance warning system are assumed, and a decision is generated based on the planned path, effectively guiding blind users to avoid obstacles through auditory and tactile information. This invention solves the problem that single-stage instance segmentation algorithms struggle to simultaneously and accurately segment small target obstacles and background road surfaces, overcoming the difficulty of providing effective information for obstacle avoidance decisions in assistive visually impaired scenarios with instance segmentation results, enabling blind users to avoid obstacles more intelligently and autonomously.
Owner:BEIJING UNIV OF CHEM TECH

A weight training method and system for generating geological lithological texture models based on LoCon

ActiveCN120852623BBiological models3D-image renderingAlgorithmTexture model
This invention provides a weight training method and system for generating geological lithological texture models based on LoCon, belonging to the field of geological lithological texture generation technology. It employs an LDM model as the large model framework for weight training and texture generation. Convolutional layers are integrated into the convolutional weights of the residual blocks in the U-Net model within the LoCon model. The low-rank matrix of the LoCon model is added to the pre-trained weight matrix in the U-Net model to construct the generated geological lithological texture model. The model is trained using a training set. The trained weights are output, loaded into the large model framework for inference, and the training parameters are adjusted based on the inference results. Training is repeated until the preset inference result requirements are met. An API is provided to create an interface between the LDM large model framework and the trained weight matrix. This fills a gap in the geological industry's material library and lowers the technical threshold for geologists to participate in digitization.
Owner:POWERCHINA BEIJING ENG CORP

A bearing cross-domain fault diagnosis method

PendingCN122087277AData setAlgorithm
This invention discloses a cross-domain fault diagnosis method for bearings, aiming to address the problem of insufficient diagnostic generalization caused by significant differences in the distribution of bearing fault features and the scarcity of target domain labels under varying operating conditions. The method first constructs a multimodal input including a standardized one-dimensional time-series signal, a short-time Fourier transform time-frequency plot, and a phase space reconstruction plot. It then extracts temporal dependencies, time-frequency textures, and phase space topological features in parallel through a three-branch network consisting of a temporal convolutional network, residual blocks, and an inverse residual layer. These features are dynamically fused using a Transformer encoder to generate global features. High-confidence pseudo-labels are generated based on a momentum prototype distance metric, and class-level domain alignment is achieved by combining a homoscedastic uncertainty weighted composite loss function. Finally, iterative training outputs the target domain fault diagnosis results. Experiments show that the method achieves cross-domain diagnosis accuracy of 98.04% and 99.79% on the bearing datasets from the University of Paderborn and Case Western Reserve University, respectively, demonstrating both high accuracy and strong generalization, making it suitable for bearing fault diagnosis in industrial variable operating conditions.
Owner:SOUTHWEAT UNIV OF SCI & TECH

An image super-resolution reconstruction method, system, device and medium

The application discloses an image super-resolution reconstruction method, system, device and medium, relates to the technical field of image super-resolution reconstruction, and comprises the following steps: extracting an image feature map; dividing an input feature map into multiple routing units, introducing a hybrid depth condition calculation in a deep feature extraction network composed of multiple residual blocks; and based on the output of the deep feature extraction network, reconstructing an image with a resolution higher than a threshold value. By introducing a hybrid depth condition calculation mechanism with displacement perception, the application designs a structured routing with displacement perception and a budget tendency for the shift window mechanism, so that the shift window sub-block is protected in terms of computing resources, and the cross-window information interaction link is more complete, so that block-like artifacts and fractures across the window boundary are less likely to occur when recovering long edges, repeated textures and large structures.
Owner:XI AN JIAOTONG UNIV

Processor, chip, device and code rate estimation method

The application discloses a processor, a chip, a device and a code rate estimation method, and belongs to the chip technical field.The processor comprises a code rate calculation unit and an accumulation unit.The code rate calculation unit is used for calculating a first code rate corresponding to an i-th residual block after the i-th residual block is acquired; and a second code rate is calculated based on N residual blocks.The accumulation unit is used for calculating the sum of the second code rate and the first code rates corresponding to the N residual blocks, so as to obtain a code rate estimation result.The processor does not consider the dependent relationship among the N residual blocks when calculating the first code rate corresponding to each residual block.After the current i-th residual block is acquired, the first code rate corresponding to the i-th residual block is calculated based on the i-th residual block itself.In this way, the problems of calculation delay and low efficiency caused by the fact that the code rate of the current residual block is calculated after all the residual blocks having the dependent relationship are acquired in the related art are avoided, and the calculation efficiency of the code rate estimation result of the encoding unit is improved.
Owner:MOORE THREADS TECH CO LTD

5GMIMO channel estimation optimization method based on deep learning

The invention relates to the technical field of 5G communication channel estimation, and discloses a 5GMIMO channel estimation optimization method based on deep learning. According to the method, a deep learning model architecture is constructed, and model parameters are dynamically initialized according to channel coherence time so as to adapt to 5GMIMO channel multipath propagation characteristics. Received signal streams from a plurality of antenna elements containing different orthogonal frequency division multiplexing sub-carrier frequency sequences are processed, channel impulse response estimates are generated based on frequency domain correlation and input into a model for nonlinear transformation. And performing model parameter collaborative optimization, updating the network weight by calculating the gradient variation, constructing a target function according to channel delay extension and model depth association, and adjusting the estimation output towards the direction of minimizing the mean square error. And triggering model structure adaptation based on a norm of gradient variation, acquiring model copy parameters matched with the current channel state from an adjacent cell base station, normalizing the model copy parameters, and adjusting the number of attention heads or the number of residual blocks.
Owner:SUZHOU KELU COMM TECH CO LTD

Spherical particle size measurement method and device based on deep learning numerical prediction

The invention discloses a spherical particle size measurement method and device based on deep learning numerical prediction, and belongs to the field of particle measurement and image processing. The method comprises the following steps: acquiring interference fringe image data of spherical particles with different sizes, marking a corresponding particle size label for each image, and dividing the images into a training set, a verification set and a test set; the training set is used to train a pre-constructed neural network model, the verification set monitors the training process and stores the optimal model weight, and the test set tests the prediction precision of the model; the pre-constructed neural network model is based on an original UNet + + network and comprises a plurality of residual blocks and a space attention module, and a full-connection output head is added to realize end-to-end mapping from an image to a size value; and finally, inputting an interference fringe image of a to-be-measured particle into the trained network, and directly outputting a particle size prediction value. According to the method, high-precision, real-time and end-to-end prediction of the spherical particle size is realized, and the method is suitable for scenes such as cloud particle field on-line monitoring.
Owner:TIANJIN POLYTECHNIC UNIV

A code rate estimation apparatus and method, a video encoder, an electronic device, a storage medium and a computer program product

This disclosure relates to a bitrate estimation apparatus and method, a video encoder, an electronic device, a storage medium, and a computer program product. The bitrate estimation apparatus includes: a parameter determination module for calculating and storing at least one bitrate estimation reference information corresponding to each residual block in an encoding unit; a bitrate estimation module for determining the input index of the last non-zero residual block in the encoding unit after storing the bitrate estimation reference information of all residual blocks in the encoding unit in the parameter determination module; and a bitrate estimation module for performing bitrate estimation on a target residual block based on at least one bitrate estimation reference information corresponding to the residual block on which bitrate estimation of the target residual block depends, wherein the input index of the target residual block is less than or equal to the input index of the last non-zero residual block. Embodiments of this disclosure can effectively reduce the amount of data that needs to be stored for bitrate estimation and reduce the computational resources required for bitrate estimation.
Owner:MOORE THREADS TECH CO LTD

Gating block-based diverse image style transfer method, computer device, readable storage medium and program product

The application relates to a diversity image style transfer method based on a gating block, a computer device, a readable storage medium and a program product. The diversity image style transfer method is realized by using a diversity image style transfer network. The diversity image style transfer network comprises a style generation network. The style generation network comprises an encoder and a decoder which are connected in sequence. The encoder is used for inputting a content image. The decoder is used for outputting a stylized image. The decoder comprises a decoding gating block and a decoding backbone network which are connected in sequence. The decoding gating block comprises at least a first branch and a second branch which are independent of each other and share an input. The outputs of the first branch and the second branch are transmitted to the decoding backbone network. The sizes of convolution kernels of the first branch and the second branch and / or the number of residual blocks in a bottleneck layer are different. Each branch of the decoding gating block has a gating factor. The gating factor is used for adjusting the usage degree of each branch in the decoding gating block.
Owner:ZHEJIANG UNIV

Methods, apparatus, computing devices and storage media for verifying kinship

This application provides a method, apparatus, computing device, and storage medium for kinship verification, comprising: acquiring at least two images; inputting each image into a feature extraction model to obtain output features of multiple specified residual blocks for each image and global features of individuals for each image; for any image, combining the output features of the multiple specified residual blocks to obtain a first combined feature; inputting the first combined feature into a local attention model to obtain local features of individuals; combining the local features of individuals and the global features of individuals for each image to obtain a second combined feature; inputting the second combined feature into a kinship verification model to obtain kinship verification results between individuals. By extracting significantly different local features of individuals from each image, combining them with the global features of individuals, and then inputting them into the kinship verification model, accurate kinship verification results are obtained.
Owner:NORTH CHINA UNIVERSITY OF TECHNOLOGY

Code rate estimation device and method, video encoder, electronic equipment, storage medium and computer program product

The invention relates to a code rate estimation device and method, a video encoder, electronic equipment, a storage medium and a computer program product, and the code rate estimation device comprises a parameter determination module which is used for calculating and storing at least one piece of code rate estimation reference information corresponding to each residual block in a coding unit; the code rate estimation module is used for determining an input index of the last non-zero residual block in the coding unit after the code rate estimation reference information of all residual blocks in the coding unit is stored in the parameter determination module; and the code rate estimation module is used for performing code rate estimation on the target residual block according to at least one piece of code rate estimation reference information corresponding to the residual block on which code rate estimation needs to be performed by the target residual block, and the input index of the target residual block is smaller than or equal to the input index of the last non-zero residual block. According to the embodiment of the invention, the data volume required to be stored for code rate estimation can be effectively reduced, and the computing resources required for code rate estimation are reduced.
Owner:MOORE THREADS TECH CO LTD

Logistics sorting algorithm based on RCNN

The present application relates to the technical fields of logistics sorting and deep learning, and particularly discloses a logistics sorting algorithm based on RCNN, the model of which is sequentially stacked by multiple convolution layers, three residual blocks, a pyramid pooling layer and a Softmax layer. The algorithm introduces ResNet to solve the problems of gradient vanishing and gradient explosion in the training process of deep convolutional neural network, so that the network is easier to learn the characteristics of data in the training process, and the performance and stability of the network are improved. The algorithm trains the RCNN model by collecting and integrating large-scale parcel image datasets, systematically adjusts the model parameters in the process, and iteratively optimizes the model to obtain the optimal model parameters. The algorithm can effectively classify the parcels to be sorted according to the parcel size, packaging material and the integrity of the outer package, so as to improve the sorting efficiency and optimize the overall operation effect of logistics.
Owner:NANJING ZSPLAT TECH

Deep learning-based splice site classification

The technology disclosed relates to constructing a convolutional neural network-based classifier for variant classification. In particular, it relates to training a convolutional neural network-based classifier on training data using a backpropagation-based gradient update technique that progressively match outputs of the convolutional network network-based classifier with corresponding ground truth labels. The convolutional neural network-based classifier comprises groups of residual blocks, each group of residual blocks is parameterized by a number of convolution filters in the residual blocks, a convolution window size of the residual blocks, and an atrous convolution rate of the residual blocks, the size of convolution window varies between groups of residual blocks, the atrous convolution rate varies between groups of residual blocks. The training data includes benign training examples and pathogenic training examples of translated sequence pairs generated from benign variants and pathogenic variants.
Owner:ILLUMINA INC

Eeg decoding method based on adaptive fuzzy convolution and tsk guided attention

This invention discloses an interpretable EEG decoding method based on adaptive fuzzy convolution and TSK-guided attention, specifically relating to the field of motor imagery classification technology. The method involves initial processing of the raw input EEG signal through a multi-scale spatiotemporal convolutional front-end; an adaptive fuzzy convolutional network models the highly non-stationary and dynamically changing dependencies in the feature sequences extracted by the multi-scale spatiotemporal convolutional front-end by stacking residual blocks, and expands the receptive field through an exponentially increasing expansion factor; the time-series representation output by the adaptive fuzzy convolutional network is globally averaged to obtain a global and time-independent preliminary feature vector, which is then weighted and averaged to obtain a fuzzy context vector, which is fed back to the attention mechanism, modulating the original query vector with the fuzzy context vector; using guided query, a highly informative final feature vector representing the input trials is obtained and weighted aggregation is performed to achieve high-precision EEG decoding.
Owner:CHANGSHU FIRST PEOPLES HOSPITAL (CHANGSHU OCCUPATIONAL DISEASE HOSPITAL) +1

Intelligent fault diagnosis method and system in krypton and xenon extraction process, and storage medium

The invention provides an intelligent fault diagnosis method and system for a krypton and xenon extraction process and a storage medium, and the method specifically comprises the steps: obtaining multivariable time series data of the krypton and xenon extraction process, and inputting the multivariable time series data into a multi-scale residual dense cavity convolutional network to extract a high-dimensional depth feature sequence; the network uses cavity convolution with different expansion rates in different residual blocks, and fuses multi-scale time sequence features through dense connection; weighting the feature sequence by using a channel attention and time self-attention mechanism to obtain a time weighted feature; meanwhile, on the basis of covariance modeling between feature channels, feature dimension attention scores are calculated, and variable correlation weighted features are obtained; performing first outer product fusion on the time weighted feature and the variable correlation weighted feature, performing second outer product fusion on the original depth feature and the time weighted feature, and splicing the two fusion results to generate a fault representation vector; and inputting the fault representation vector into a classifier, and outputting a fault type diagnosis result.
Owner:BEIJING WUSHUI TECH CO LTD +1

Rock and mineral classification method based on three-dimensional convolution residual network

PendingCN122368629AData packEngineering
This invention discloses a rock and mineral classification method based on a three-dimensional convolutional residual network, relating to the field of geological exploration technology. The method includes the following steps: Step S1: Acquire hyperspectral image data of the rock and minerals, wherein the hyperspectral image data includes spatial and spectral information; Step S2: Preprocess the hyperspectral image data to obtain a normalized three-dimensional data matrix; Step S3: Construct a three-dimensional convolutional residual network model, wherein the network model includes an input layer, multiple three-dimensional convolutional residual blocks, a feature fusion module, and a classification output layer. This invention achieves end-to-end automated processing, eliminating the need for manual feature engineering design, reducing reliance on experience, adapting to practical engineering applications, and its modular architecture also possesses strong transferability and scalability, adapting to different data and extended scenarios, balancing classification accuracy and practicality.
Owner:SUZHOU ZHUOJU INTELLIGENT TECHNOLOGY CO LTD

Attention interpretable electroencephalogram decoding method based on adaptive fuzzy convolution and TSK guidance

The invention discloses an attention interpretable electroencephalogram decoding method based on adaptive fuzzy convolution and TSK guidance, and particularly relates to the technical field of motor imagery classification, and the method comprises the steps: carrying out the preliminary processing of an input original EEG signal through a multi-scale space-time convolution front end; the adaptive fuzzy convolutional network performs modeling on a highly non-stable and dynamically changing dependency relationship in a feature sequence extracted by the multi-scale space-time convolution front end through a stacked residual block, and expands a receptive field through an exponentially increased expansion factor; performing global average pooling on a time sequence representation output by the adaptive fuzzy convolutional network to obtain a global and time-independent initial feature vector, then performing weighted average to obtain a fuzzy context vector, feeding back the fuzzy context vector to an attention mechanism, and modulating an original query vector by the fuzzy context vector; and obtaining a final feature vector represented by a highly informationized input test number by utilizing guide type query, and carrying out weighted aggregation to realize EEG decoding high-precision processing.
Owner:CHANGSHU FIRST PEOPLES HOSPITAL (CHANGSHU OCCUPATIONAL DISEASE HOSPITAL) +1

Insulator crack detection method based on generative adversarial network image super-resolution reconstruction

The invention relates to an insulator crack detection method based on generative adversarial network image super-resolution reconstruction. The method comprises the following steps: S1, acquiring an image data set with insulator defects; s2, building a generator; s3, constructing a discriminator; s4, constructing an overall convolutional neural network suitable for image super-resolution reconstruction; s5, in the deep learning environment built in the steps S1 to S4, for the generator built in the step S2, using a plurality of dense residual blocks to realize maximum extraction of features; and S6, training a generator by using the randomly cut image in the step S1, and using the finally generated super-resolution image for insulator crack detection, thereby improving the judgment accuracy. According to the method, the problem of low identification precision of a traditional method caused by the lack of crack details of the low-resolution insulator inspection image can be solved.
Owner:STATE GRID TIANJIN ELECTRIC POWER COMPANY +1

A residual network-based sequential cipher register differential discriminator

A serial cipher register differential discriminator based on residual networks includes the following steps: 1) Dataset generation: For serial cipher algorithms, training samples containing fixed differences (label 1) and random differences (label 0) are generated. The data is loaded into the state register using the key and initialization vector, and after a warm-up round, concatenated input data of length 2M is generated; 2) Feature extraction and preprocessing: Linear transformation and batch normalization are performed using embedding layers to reshape the data into a format suitable for convolutional processing, and initial features are extracted using a 1D convolutional neural network; 3) Residual network architecture: Multi-layer residual blocks are designed, employing different dilation rates (2 for odd positions and 1 for even positions) to capture multi-scale contextual information, supporting 1-10 configurable residual blocks; 4) Classification prediction: Binary classification is achieved through adaptive average pooling, fully connected layers, and the Softmax activation function, with a threshold of 0.51 used to determine true differences and random differences.
Owner:GUILIN UNIV OF ELECTRONIC TECH

A fluorescence image denoising and super-resolution method

This invention relates to the fields of fluorescence image inpainting and deep learning, and particularly to a fluorescence image denoising and super-resolution method; comprising the following steps: S1, acquiring an image to be processed; S2, constructing a fluorescence image processing model, the fluorescence image processing model being used to perform denoising or super-resolution processing on the image, including an encoder, a decoder, and a convolutional unit, the output of the encoder being connected to the input of the decoder, the output of the decoder being connected to the convolutional unit, and the convolutional unit being processed using the ReLU activation function; the encoder includes multiple encoding sub-blocks, each encoding sub-block including multiple residual blocks, each residual block including an instance normalization layer, a ReLU activation layer, and a convolutional layer; S3, inputting the image to be processed acquired in step S1 into the fluorescence image processing model constructed in step S2 to obtain a denoised and super-resolution image; thereby optimizing the performance of the denoising or super-resolution task.
Owner:INNOVATION CENTER OF YANGTZE RIVER DELTA ZHEJIANG UNIVERSITY

Highly Efficient Convolutional Neural Networks

The present disclosure provides directed to new, more efficient neural network architectures. As one example, in some implementations, the neural network architectures of the present disclosure can include a linear bottleneck layer positioned structurally prior to and / or after one or more convolutional layers, such as, for example, one or more depthwise separable convolutional layers. As another example, in some implementations, the neural network architectures of the present disclosure can include one or more inverted residual blocks where the input and output of the inverted residual block are thin bottleneck layers, while an intermediate layer is an expanded representation. For example, the expanded representation can include one or more convolutional layers, such as, for example, one or more depthwise separable convolutional layers. A residual shortcut connection can exist between the thin bottleneck layers that play a role of an input and output of the inverted residual block.
Owner:GOOGLE LLC

Systems and methods for applying non-separable transforms on inter prediction residuals

The various implementations described herein include methods and systems for coding video. In one aspect, a method includes receiving a video bitstream that includes a set of inter mode encoded blocks and a corresponding set of transform coefficients. The method includes deriving a set of inter mode residual blocks from the set of transform coefficients. The method includes determining, according to a value of a first indicator in the video bitstream, whether one or more non-separable transform kernels are to be applied to the set of inter mode residual blocks. The method includes applying a first non-separable transform kernel when the indicator has a first value, and forgoing applying the first non-separable transform kernels when the indicator has a second value. The method also includes reconstructing a set of video blocks using the set of inter mode residual blocks and a corresponding set of prediction blocks.
Owner:TENCENT AMERICA LLC

Method and apparatus for sign coding of transform coefficients in video coding system

A method and apparatus for joint sign prediction of transform coefficients of residual blocks in a video coding system are disclosed. At the encoder side, a transform coefficient region or an index value range is determined according to coding context associated with the current block. A set of signs associated with a set of selected transform coefficients are determined for joint sign prediction are determined according to the transform coefficient region or the index value range. Joint sign prediction for the set of signs is determined by selecting a hypothesis from a group of hypotheses for the set of signs that achieves a minimum cost. The sign prediction is then used for coding the set of signs. A corresponding method and apparatus for the decoder side is also disclosed.
Owner:MEDIATEK INC

Method and apparatus for video encoding

ActiveCN115567708BDigital video signal modificationLossless codingCoding block
A method and apparatus for video coding. Methods and apparatuses for video coding with lossless coding mode are provided. The method includes partitioning a video picture into a plurality of CUs including a lossless CU, determining a residual coding block size of the lossless CU, and in response to determining that the residual coding block size of the lossless CU is greater than a predefined maximum value, partitioning the residual coding block into two or more residual blocks for residual coding.
Owner:BEIJING DAJIA INTERNET INFORMATION TECH CO LTD

Device temperature estimation method based on physical information neural network

The invention discloses a device temperature estimation method based on a physical information neural network, and the method comprises the steps: obtaining the surface temperature time series data of a target device when the target device works in a first temperature environment and a second temperature environment, and constructing a training data set based on the data; constructing a physical information neural network formed by a plurality of double-layer residual blocks connected in series; introducing the physical information constraint of the target device to form an overall loss function of the physical information neural network; and training the physical information neural network by using the training data set, updating parameters of the physical information neural network by optimizing the total loss function until the model converges, and obtaining a trained temperature prediction model. According to the invention, high-precision modeling and prediction of the surface temperature of the device are realized.
Owner:西安为光能源科技有限公司

Video decoding in-loop filtering based on U-NET and converter

Described are a method and apparatus for decoding video data. An example method includes in-loop filtering a current block of video data using a neural network-based in-loop filter to generate an in-loop filtered current block, where the neural network-based in-loop filter is trained using an architecture including a U-Net architecture, the U-Net architecture comprises one or more residual blocks and one or more transformation blocks; and outputting the in-loop filtered current block.
Owner:QUALCOMM INC

Diffusion model training method and device, equipment and storage medium

The invention provides a diffusion model training method and device, equipment and a storage medium, and the method comprises the steps: introducing a pulse network composed of pre-pulse residual blocks into an initial diffusion model, and obtaining a first diffusion model with basic denoising capability through first-stage training; and then, replacing each pre-pulse residual block with a time dimension pulse mechanism block containing a learnable time modulation parameter to form a second diffusion model, and carrying out second-stage training to obtain a target diffusion model. Wherein the time modulation parameter can dynamically adjust the membrane potential or the distribution threshold value of the neuron according to the time step information. The time sequence sensing modeling of the full pulse domain is realized, and the image generation quality and the denoising precision are remarkably improved while the advantages of low power consumption and high energy efficiency of the SNN are maintained.
Owner:BEIJING HUMANOID ROBOTICS INNOVATION CENTER CO LTD

A DAS dynamic strain monitoring signal denoising method and device based on Dn-ResUnet

This invention discloses a method and apparatus for denoising DAS dynamic strain monitoring signals based on Dn-ResUnet, relating to the field of distributed fiber optic acoustic wave sensing (DAS) dynamic strain monitoring signal processing technology. The method includes: acquiring a noisy DAS signal; inputting the noisy DAS signal into a pre-trained denoising neural network model, wherein the denoising neural network model is a Dn-ResUnet network based on the U-Net architecture and incorporating residual blocks; outputting a noise estimation signal through the denoising neural network model; and subtracting the noise estimation signal from the noisy DAS signal to obtain the denoised DAS signal. This invention uses a residual block encoder and decoder and introduces residual learning to obtain the noise distribution from the noisy signal, enabling the processing of multiple types of noise at once, greatly improving the denoising effect, and successfully denoising even under high noise conditions.
Owner:CHINA SHIP DEV & DESIGN CENT