138 results about "Class prediction" patented technology

The invention relates to the technical field of medical image processing and computer vision, in particular to a parasitic ovum microscopic image detection method and system based on polymorphic prior, and the method comprises the steps: obtaining a to-be-detected microscopic image, and carrying out the feature extraction of the to-be-detected microscopic image through a convolutional neural network, and obtaining an initial feature map; constructing a polymorphic convolution kernel library based on preset biological morphological characteristics of the parasitic ova; performing deep convolution and feature fusion operation on the initial feature map by using a polymorphic convolution kernel library to generate a space attention map; performing feature enhancement processing on the initial feature map by using the spatial attention map to obtain an enhanced feature map; and performing bounding box regression and category prediction on the enhanced feature map to obtain a parasitic ovum detection result. According to the method, morphological priori and attention mechanisms are introduced, so that the problems of egg form similarity, background interference and the like are solved, accurate and robust automatic detection is realized, and the clinical diagnosis efficiency is remarkably improved.

A tabular data model, which may be pre-trained on a different data set, is used to generate data samples for a target class with a given set of context data points. The tabular data model is trained to predict class membership of a given data point with a set of context data points. Rather than use the predicted class directly, the class predictions are used to determine a class-conditional energy for a synthetic data point with respect to the target class. The synthetic data point may then be updated based on the class-conditional energy with a stochastic update algorithm, such as stochastic gradient Langevin dynamics or Adaptive Moment Estimation with noise. The value of the synthetic data point is sampled as a data point for the target class. This permits effective data augmentation for tabular data for downstream models.

Disclosed herein are methods, devices, and systems for detecting bus lane moving violations. One aspect of the disclosure concerns a method comprising capturing a video showing a vehicle located in a bus lane, inputting video frames from the video to an object detection deep learning model to detect the vehicle and bound the vehicle in a vehicle bounding polygon, determining a trajectory of the vehicle in an image space of the video frames, transforming the trajectory of the vehicle in the image space into a trajectory of the vehicle in a GPS space, inputting the trajectory of the vehicle in the GPS space to a vehicle movement classifier to yield a movement class prediction and a class confidence score, and evaluating the class confidence score against a predetermined threshold based on the movement class prediction to determine whether the vehicle was moving when located in the bus lane.

The invention provides an unmanned aerial vehicle target detection method based on long-tail distribution optimization. The method comprises the steps of performing data fusion on acquired multi-modal data; inputting the fused data into a feature extraction network for feature extraction, and performing adaptive reweighting of channels and spaces during feature extraction; dynamically adjusting an anchor box according to the extracted feature map by adopting a regional proposal network to generate a candidate box; calculating a joint confidence coefficient according to the candidate box and the feature map so as to optimize a sampling strategy of a category bias sampler; respectively processing the sampled head feature frame and the tail feature frame to obtain a corresponding category prediction probability and a bounding box offset, and decoding a prediction depth value by adopting a depth decoder according to the candidate frame and the feature map; according to the category prediction probability, the bounding box offset and the prediction depth value, constructing a total loss function to perform model training; outputting a detection result by adopting the trained target detection model; therefore, the detection sensitivity of low-frequency and high-risk targets in the construction site is remarkably improved.

The invention discloses a remote sensing image segmentation method combined with non-additional parameter similarity attention, which relates to the field of remote sensing image segmentation, and comprises the following steps of: extracting multi-scale features of a remote sensing image by utilizing a feature extraction and fusion optimization network, performing fusion optimization, and generating initial features; performing sensitivity enhancement through a similarity attention unit without additional parameters in the feature enhancement network, performing boundary and texture feature extraction through a boundary and texture feature extraction unit, and performing fusion to generate enhanced features; and in combination with the segmentation network, performing optimization and category prediction on the enhanced features, and outputting a segmentation result of the remote sensing image. According to the method, the model efficiency is remarkably improved on the premise of not increasing extra parameters, the problems of detail loss and boundary fracture in a complex scene are effectively solved, and the adaptability and segmentation quality of a low-contrast region and a high-noise remote sensing image are improved.

The invention discloses a semi-supervised keratitis IVCM image classification method, system and device based on a median enhanced attention mechanism and a medium, and the method comprises the steps: carrying out the class prediction of IVCM images with labels, weak enhancement and no labels after strong enhancement, and obtaining corresponding class score vectors; according to the category score vector with the label, obtaining label loss; according to the category score vector without the label after weak enhancement and a confidence coefficient threshold value of the current training round, defining a pseudo label, and obtaining a maximum category probability of the pseudo label; calculating no-label loss according to the category score vector of the no-label after strong enhancement and the maximum category probability of the pseudo-label; training the MEWRN network in combination with the label loss and the label-free loss; systems, devices, and media for implementing the method; the accuracy of the classification model is improved by adopting the label-free data and the label data; a median-enhanced attention mechanism is introduced into the MEWRN, so that the extraction effect of image features is enhanced, and accurate classification is realized.

The invention discloses a small target vehicle detection method and related equipment. The method comprises the following steps: acquiring image data; inputting the obtained image data into a trained small target vehicle detection model, and outputting a detection result; the small target vehicle detection model comprises a backbone network, a neck network and a detection head; the backbone network fuses a convolution module and an attention mechanism on the basis of a YOLOv8n network, and is used for carrying out feature extraction on an image and providing feature information for a subsequent neck network; the neck network is additionally provided with an up-sampling module on the basis of a YOLOv8n network, feature map size alignment is carried out through an up-sampling and down-sampling bidirectional path, and feature map information is fully fused; the detection head is used for dividing feature information transmitted by the neck network into two paths and processing the two paths respectively, and completing two tasks of bounding box prediction and category prediction at the same time. According to the method, the feature extraction and detection precision of the model on the small target vehicle is effectively improved, and the strict perception performance requirement in an automatic driving scene is met.

Methods, systems, and apparatus for classification. In one aspect, a method includes receiving an input and a request to classify the input into one of a plurality of classes, processing the input using a multimodal model to generate (i) a description of the input and (ii) a class prediction, processing the description of the input and the class prediction using a text encoder embedding neural network to generate a (i) text description feature embedding and (ii) a prediction feature embedding, generating, from at least the description feature embedding and the prediction feature embedding, a query feature embedding representing the input, and classifying the input into one of the plurality of classes using the query embedding.

In accordance with an embodiment, a method includes using a machine-learning model to infer from at least one feature vector, a gesture class prediction associated with a gesture; and determining at least one feature relevance vector for the at least one feature vector, where each of the at least one feature relevance vector includes feature relevance values, and each of the feature relevance values are indicative of a dependency of the gesture class prediction on respective one or more feature values of the at least one feature vector.

The present invention discloses a vehicle re-identification method and device guided by a camera topology map. The method comprises: constructing a training set to obtain vehicle feature representations; constructing a camera topology map based on the vehicle feature representations; constructing a topological relationship between the feature representations of any two vehicles based on the camera topology map and inputting the relationship into a graph convolutional network to obtain final aggregated features; fusing the final aggregated features with the vehicle feature representations, and inputting the fusion result into a fully connected layer for class prediction; constructing a target loss function, training the graph convolutional network, and stopping the training until the target loss function value is minimized to obtain a trained graph convolutional network; and performing vehicle re-identification using the trained graph convolutional network. The present invention has the advantages of improving the accuracy of re-identification.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for performing novel category discovery. One of the methods includes generating first local feature tensors from a first training image; obtaining previous local feature tensors generated from a previous training image; generating a first similarity tensor representing a similarity between the first local feature tensors and the previous local feature tensors; obtaining a second similarity tensor for a second training image; processing, using a neural network, the first training image to generate a first training output representing a class prediction for the first training image; obtaining a second training output representing a class prediction for the second training image; and generating an update to the neural network from (i) a similarity between the first similarity tensor and the second similarity tensor and (ii) a similarity between the first training output and the second training output.

The present invention relates to a quantum machine learning method for multi-class classification, and the method comprises the steps of: applying a Quantum Convolution Neural Network (QCNN) quantum circuit to input data having q qubits, and outputting a feature vector based on Pauli-Z measurement; and applying a Quantum Neural Network (QNN) quantum circuit to the feature vector, and outputting a multi-class prediction vector with scalability increased compared to q qubits based on basis measurement.

The invention relates to the technical field of image classification, in particular to an image classification method and system based on a visual language large model, and the method comprises the following steps: 1, obtaining a plurality of original images, and constructing an image classification network; 2, selecting one original image from a plurality of original images, inputting the selected original image into an image classification network, and finally obtaining a category prediction result; 3, constructing a loss function by utilizing a category prediction result and a real category; 4, circulating the steps 2 and 3, minimizing the loss function until the loss function converges or the number of iterations reaches a set number of times, and updating the weight of the image classification network to obtain a trained image classification network; and 5, deploying the trained image classification network to a device end, and classifying the images by using the device end to obtain a classification result. According to the method, the problems of insufficient global information capture and low visual and language information fusion efficiency in a traditional single-mode classification method are solved, and higher classification precision and task generalization ability are realized.

The invention discloses an EEG channel selection method and system based on double-branch collaborative guide learning. The method comprises the steps that original electroencephalogram signals are collected; the original electroencephalogram signals are input into the channel importance evaluation module through the signal input module, the smooth score of each channel is calculated, and a set number of optimal channels are selected; the signal feature extraction module extracts the space-time features of the optimal channel and pools and projects the space-time features to obtain final embedded features; the embedded features are input into the double branches, global average pooling is carried out on the embedded features, and prediction label probability distribution is obtained through multi-class prediction; reconstructing the complete electroencephalogram signals according to the embedded features to obtain reconstructed electroencephalogram signals; constructing a total loss function, minimizing the total loss, and adjusting the weight of the electroencephalogram channel selection model; and performing channel selection by using the trained electroencephalogram channel selection model. According to the method, through a collaborative learning mechanism, on the basis of ensuring the performance, the number of channels required by electroencephalogram signals is remarkably reduced.

Disclosed is a method and system for real-time model predictive control-based planning of an autonomous vehicle based on identification and classification learning of constraints. A real-time model predictive control-based planning method may include generating a class prediction decision value that determines an upper bound and a lower bound of constraints in an optimal control problem through an observation value for a driving environment; and receiving the class prediction decision value and the observation value from the driving environment and generating a main trajectory.

The invention belongs to an SDTW-IPAM-based short-term power load prediction method and system, electronic equipment and a storage medium. The method comprises the steps of data preprocessing, clustering analysis, single-class prediction model construction and future load prediction. The clustering analysis comprises setting of upper and lower limits of a cluster number, construction of a distance matrix, calculation of a Gap value and a standard error, selection of an optimal cluster number, generation of an initial center, clustering processing and normalization processing; according to the method, a distance measurement method is introduced into load clustering, so that the dynamic time sequence characteristics of a load curve can be described more accurately, the local time deformation of the load curve can be effectively identified, and the distinguishing capability of similar load days under the influence of weather, events or potential new energy fluctuation is improved; a clustering algorithm is improved by using statistics and an initialization strategy, so that the stability and the accuracy of performing mode recognition on complex load data are improved, and the load can be effectively divided into typical modes with different dynamic characteristics.

The invention discloses an automobile part defect identification method and system, computer equipment and a storage medium, and aims to solve the problem that a training sample is limited in industrial defect detection by performing discrete Fourier transform on an original image to obtain a high-frequency structural feature image. The high-frequency structural features of the target in the original image are fused into the original features of the defect, and the feature expression of the target is enriched, so that the deep learning model can fully learn the feature expression of the defect target with fewer training samples, thereby improving the classification performance of the known category, and improving the classification efficiency. The obtained defect feature vector is subjected to known class prediction through a full-connection classification network in the automobile part defect identification method based on high-frequency structure feature fusion enhancement and class mutual information constraint, and whether input sample data belongs to an unknown class is judged; and finally, accurate defect detection and unknown defect identification in industrial defect detection are realized.

The invention provides a universal AIGC image detection method and device based on edge enhancement, electronic equipment and a storage medium, and the method comprises the steps: carrying out the edge perception of an AIGC image, and obtaining an edge image; performing edge artifact enhancement on the AIGC image by using the edge image; wherein the edge artifacts are features generated through up-sampling processing in the process of generating the AIGC image; performing local pixel difference extraction operation in the AIGC image after edge artifact enhancement to obtain a high-frequency information feature map; and inputting the high-frequency information feature map into the trained classification network for class prediction to obtain the authenticity probability of the AIGC image. According to the method, the edge artifact features left in the general up-sampling process of the generative models are used for detection, priori knowledge of the generative models does not need to be obtained, the method does not depend on a specific generative model, the effect of uniformly detecting the generated images of multiple generative models can be achieved, and the cross-domain generalization problem is solved.

A graph has nodes which represent entities of the industrial system and edges representing relations between the entities of the industrial system. A graph neural network processing the graph calculates a class prediction for at least one entity of the industrial system. A sub-symbolic explainer processes the class prediction to identify edges between nodes and associated features of nodes belonging to a sub-graph within the graph having influenced the class prediction. A large language model, equipped with a plugin for accessing the graph and receiving a prompt including the sub-graph, transforms the sub-graph into a maintenance justification in natural language. A user interface outputs a predictive maintenance alert along with the maintenance justification.

The invention discloses an intestinal polyp identification method based on images and multi-modal data. The method comprises the following steps: acquiring pathological images of a plurality of microscopes, objective magnification information corresponding to the pathological images, and text information corresponding to enteroscopes; performing data preprocessing on each frame of acquired pathological image and text information to obtain a training data set; a multi-scale multi-modal feature classification network is constructed, the training data set is used for training, and a trained multi-scale multi-modal feature fusion classification network is obtained; the method comprises the following steps: collecting a microscope pathological image of a patient, obtaining corresponding enteroscope text information, respectively carrying out data preprocessing, and inputting into a multi-scale multi-modal feature fusion classification network to obtain disease category prediction of a model. According to the method, pathological images and enteroscope text information are fully fused, accurate classification and prediction of disease types are finally achieved, the effect and efficiency of multi-modal diagnosis of intestinal diseases are improved, and therefore the accuracy of patient diagnosis is improved.

The invention belongs to the technical field of traffic target detection, and discloses a traffic target detection method, system and model architecture under severe weather conditions. The method comprises the following steps: preprocessing an input traffic scene image; performing multi-scale feature extraction on the preprocessed image, and obtaining multi-scale feature representation through AMSConv operation; carrying out bidirectional fusion on the extracted multi-scale features to obtain fusion features; the fusion features are processed, and category prediction, bounding box coordinates and confidence of the target are generated; and optimizing bounding box regression based on InfoAware-IoU measurement, and dynamically weighting a high information sample. Through multi-scale feature extraction, efficient detection head design and information perception regression optimization, the problem of visual degradation under severe weather conditions is effectively solved, and the accuracy and real-time performance of traffic target detection are improved.

The application relates to a visual language model test adaptation method based on logarithmic calibration and consistency cache, and relates to the technical fields of computer vision, pattern recognition, machine learning and artificial intelligence. The method aims at the problems of class prediction bias, insufficient cache sample coverage and low utilization rate of boundary samples of a visual language model in a target domain test stage, and constructs an online adaptation framework composed of an image encoder, a text encoder, a dynamic logarithmic calibration module, a consistency guide exploration cache module and a cross-modal joint optimization module. The method improves the identification opportunities of difficult classes and low-frequency classes through a dynamic logarithmic calibration mechanism, and improves the overall class balance and classification stability. Through the consistency guide exploration cache mechanism, the coverage range of the cache to the real distribution of the target domain is expanded, and the perception ability of the model to the decision boundary region is enhanced, so that the adaptation effect in a complex distribution offset scene is improved.

The invention discloses a multi-scale feature representation enhancement method and medium for underwater sonar target detection, and the method comprises the steps: 1, constructing a lightweight composite feature extraction backbone network of a target detection model, and extracting a three-level scale feature map; 2, obtaining a five-level scale feature map through up-sampling and down-sampling, fusing semantic features of a top layer to a lower layer, and enhancing context semantic information; 3, a multi-dimensional dynamic attention module is added through feature fusion and input, and attention is enhanced for key features from three dimensions of scale, space and channel; 4, a detection module carries out dense prediction on each layer of features fused by the features of the multi-dimensional dynamic attention module, the dense prediction comprises a frame regression branch, a category prediction branch and positioning quality prediction, and a positioning quality detection branch is improved by adopting central positioning confidence; and 6, total loss is calculated, model parameters are updated through back propagation, a target detection model is obtained after training is ended, and the scheme obtains good detection precision in an underwater sonar target detection task.

The invention provides a multi-class attitude estimation method and system based on shared key point adaptive matching, and the method comprises the steps: constructing a large-scale multi-class attitude data set for model training and evaluation, carrying out the processing of the data set, obtaining a training image subset and a test image subset, respectively inputting the training image subsets into a query model comprising an image feature extraction module, a structure prototype classification module, a shared key point prediction module, an adaptive matching module and a model optimization module, training the query model through mutual cooperation of the modules, and optimizing model parameters; and applying the optimized query model to a test image to obtain a structure prototype category prediction result and a key point estimation result of the test image. According to the method, cross-category universal features are learned by sharing key point embedding, and unified and high-precision attitude estimation of mass categories of objects with variable structures is realized by using a prototype exclusive matching mechanism of momentum updating.

The application relates to a kind of aerial image rotating target detection methods based on annular smooth label, belong to image processing field.The method comprises the following steps: S1: the format of image label is handled using annular smooth label (CSL), so that the angle information in the label has periodicity;S2: for the problem of difficult feature extraction caused by occlusion, small target and other reasons, a global context module is introduced into the feature extraction module of YOLOv5s network, which is improved and a rotating target detection model is built;S3: use GSConv convolution to replace the standard convolution to optimize the Neck module of the network and generate feature maps of different sizes;S4: class prediction and rotating envelope box prediction containing angle information are carried out;S5: calculate classification loss, confidence loss, positioning loss and angle loss;S6: use the improved detection model to train the preprocessed data set;S7: input test set, obtain detection result.

A data classification and recognition method includes: obtaining a first data set and a second data set, the second data set including second data, samples in the second data being labeled; performing training using first data in an unsupervised training mode and using the second data in a supervised training mode to obtain a first classification model; obtaining a second classification model; performing distillation training on a model parameter of the second classification model to obtain a data classification model; and performing class prediction on target data by using the data classification model.

The invention discloses a YOLO-based lightweight attention-guided digestive endoscopy abnormal region detection method. The method comprises the following steps: preprocessing data by adopting an image enhancement strategy, and inputting the preprocessed data into a backbone network to extract features; and the extracted features are subjected to up-sampling, fusion and enhancement on the neck layer and then are input into the detection layer to complete position regression and category prediction of the target area. According to the method, an MDR-YOLO model is developed and is used for abnormal region detection of a digestive endoscopy image, and a proposed MSC2f module comprises a multi-scale parallel convolution attention module used for extracting multi-scale feature information; the provided D4f module comprises a deep semantic expression structure constructed by a multi-level convolution residual path, so that high-quality feature fusion and enhancement are realized; a proposed RSC2f module comprises a channel attention residual module which is used for improving the ability of the model to extract all-channel features. The experimental result verifies the effectiveness of the MDR-YOLO model in the detection of the abnormal region in the digestive endoscopy image, and especially shows higher accuracy and robustness in the detection of a small target.

The present invention discloses a runoff ensemble forecasting method based on real-time correction of weights for machine learning models. The present invention collects hydrometeorological data in the study basin, divides the training set, validation set, and test set, establishes a machine learning runoff forecasting ensemble, and uses the dynamic Bayesian algorithm to obtain the dynamic weights of each model in the machine learning runoff forecasting ensemble; then, based on the measured runoff values, classifies the runoff simulation values obtained by the machine learning model, constructs a class prediction model, outputs the predicted class, divides the training set by class and extracts the weight sequence, calibrates the weight correction value according to the class rate to adjust the sum of weights, and verifies the effect on the validation set; finally, divides the test set based on the predicted class of the test set and extracts the weight sequence, combines the calibrated weights to generate the final runoff prediction result. The present invention effectively reduces the influence of the overall deviation of the model ensemble on the final prediction, thereby improving the accuracy of basin runoff forecasting.

Disclosed in the present invention is an endoscopic ultrasound-based lesion invasion depth evaluation system, comprising: an image acquisition module for acquiring an endoscopic ultrasound image, a model creation module for creating a convolutional neural network model, and a model training module. The convolutional neural network model comprises: a feature extraction module, used for performing layer-by-layer feature extraction across at least three layers on the endoscopic ultrasound image, so as to obtain encoded feature maps; a feature fusion module, used for performing feature fusion on at least three groups of encoded feature maps, so as to obtain a first fused feature map; a decoder module, used for using an attention mechanism to process the encoded feature maps used in the feature fusion module and the feature map obtained by the feature fusion module, so as to obtain multiple decoded feature maps, and used for performing image segmentation on a finally obtained decoded feature map, so as to obtain a lesion region; and a class prediction module, used for performing classification with respect to the lesion invasion level on the basis of the first fused feature map and the decoded feature maps. The present invention can accurately predict lesion regions and lesion invasion depth types.

This invention relates to the field of cardiovascular disease auxiliary diagnosis technology, specifically to a method and system for auxiliary diagnosis of high-altitude hypertension based on electrocardiogram (ECG). It uses 12-lead ECG images as input, constructs a multi-branch adaptive classification model that integrates regional priors, sequentially extracts shallow general features through a shared feature extraction module, combines independent feature branches from multiple leads with a paired spatial attention module to capture relative potential differences between leads, and a multi-path adaptive fusion module dynamically fuses differential features between high-altitude and plain areas using regional labels as gating signals. Finally, a hybrid classifier composed of capsule networks and DenseNet cascades the features to complete a four-class prediction: high-altitude hypertension, high-altitude normal, plain hypertension, and plain normal. This invention effectively overcomes the problem of cross-regional data domain shift, improves the ability to capture weak pathological features in ECG images, and has strong clinical transferability and robustness, making it suitable for auxiliary screening of hypertension across high-altitude and plain areas.