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45results about How to "Reduce labeling workload" patented technology

Modeling and controlling method for synchronizing voice and mouth shape of virtual character

ActiveCN108447474AEfficient natural lip-sync controlEfficient natural synchronization controlSpeech recognitionSpeech synthesisAttitude controlSynchronous control
The invention belongs to the virtual character attitude control in the field of speech synthesis, and particularly relates to a modeling and controlling method for synchronizing the voice and the mouth shape of a virtual character. The object of the invention is to reduce the mouth shape animation data annotation amount and to achieve accurate and naturally smooth mouth motion synchronized with the voice. The method comprises: generating a phoneme sequence corresponding to the to-be-synchronized voice; converting the phoneme sequence into a phoneme category sequence; converting the phoneme category sequence into a static mouth shape configuration sequence; and converting the static mouth shape configuration sequence distributed on a time axis into dynamically changing mouth shape configuration by a dynamic model; rendering the dynamically changing mouth shape configuration into an attitude image of the head and neck of the virtual character, and displaying the attitude image in synchronization with a voice signal. The method can realize efficient and natural virtual character mouth shape synchronous control without mouth shape animation data and with a phonetic prior knowledge anddynamic model.
Owner:北京灵伴未来科技有限公司

Segmentation method for unconventional cells in pathological section

The invention discloses a segmentation method for unconventional cells in a pathological section. The method comprises the steps that cells in the pathological section are processed into separate to-be-segmented cell images with a transparent background, and a pixel tag is allocated to each pixel point of each to-be-segmented image; a mapping method is used to randomly distribute the to-be-segmented cell images on a white background, the cells are superposed according to a certain probability to form pseudo-input images, and corresponding full-image pixel tags are acquired and marked as real-value tags; the pseudo-input images and the real-value tags are used as training data to train a Mask-RCNN, so that the Mask-CNN has the abilities of detecting an unconventional cell boundary box and predicting the pixel tags in the box; and a new pathological section not marked is input into the converged Mask-RCNN, the unconventional cells in the non-segmented pathological section are detected, and a final segmentation result is obtained through postprocessing. Through the segmentation method, marking time can be effectively shortened, marking cost can be effectively lowered, a large amount of training data can be generated in a short time, and fitting can be well performed on a large amount of data.
Owner:ZHEJIANG UNIV

Image processing method and device, electronic equipment and storage medium

The invention relates to an image processing method and device, electronic equipment and a storage medium, and the method comprises the steps: carrying out the feature extraction of a plurality of first images obtained in a current clustering period, and obtaining the first features of the first images; performing clustering processing on the first features, so that the category of each first image and the first clustering center of each category can be obtained; respectively determining a first feature similarity between each first clustering center and a second clustering center of each category in the reference feature library; and adding the first feature of the category to which the first clustering center of which the first feature similarity meets the threshold condition belongs tothe reference feature library. According to the image processing method provided by the embodiment of the invention, the first features meeting the threshold condition can be added to the reference feature library, and all the images do not need to be loaded into the memory for clustering processing, so that the memory can perform clustering processing with a relatively small data scale, the typesof all the first images can be automatically distinguished, and the annotation workload is reduced.
Owner:SHENZHEN SENSETIME TECH CO LTD

Network attack traffic generation method based on auxiliary classification type generative adversarial network

The invention discloses a network attack traffic generation method based on an auxiliary classification type generative adversarial network, and the method can generate a malicious traffic sample which can cheat and escape from the detection of a defense system according to an existing network attack traffic data set sample by utilizing the principle of the generative adversarial network. The system comprises: a multi-source heterogeneous data fusion processing module which is responsible for defining a unified data format; a generator network which is responsible for generating a network statistical flow sample according to Gaussian noise and feedback from the discriminator; a discriminator network which is responsible for analyzing the attack traffic sample generated by the generator and the original network traffic sample, including authenticity analysis and attack traffic category analysis; and a classification fine tuning module which is responsible for debugging the performance of the generation model for generating specific types of traffic samples. According to the method, the network attack traffic generation model based on the auxiliary classification type generative adversarial network is constructed, the network attack traffic sample of a specific type can be generated according to the type of the network attack when the network traffic is generated, and the network attack can be simulated by generating the adversarial sample to detect the robustness of the existing intrusion detection system, and a new thought is provided for the existing traffic generator.
Owner:BEIJING UNIV OF POSTS & TELECOMM +2

Method for obtaining fetal four-cavity tangent plane cardiac cycle video based on hybrid convolutional network

The invention discloses a method for obtaining a fetal ultrasound four-cavity tangent plane cardiac cycle video based on a hybrid convolutional network. A complete period of the fetal four-cavity heart is defined as a period from the end of four-cavity tangent plane contraction to the end of next four-cavity tangent plane contraction, or a period from the end of four-cavity tangent plane relaxation to the end of next four-cavity tangent plane relaxation, and other intermediate periods are included in the period; wherein a video is used as input data; an image sequence after down-sampling is used as model input; features of time and space are extracted through a 3D convolutional network. By extracting 2D convolution network enhanced spatial dependence features, the features are fused. Finally, the classification probability and category of the next frame are predicted as three categories. A fetal four-cavity tangent plane cardiac cycle video which is complete and obvious in features iscounted through the joint probability under the condition that the category conforms to the complete cycle. The technical problem that an existing fetal heart detection method is difficult to guarantee the detection accuracy is solved.
Owner:深圳蓝湘智影科技有限公司

Annotation method for structured analysis of Chinese electronic medical record text

ActiveCN109524071ASolve participleResolve part of speechMedical data miningNatural language data processingMedical recordSystems design
The invention discloses an annotation method for the structured analysis of a Chinese electronic medical record text, and belongs to the technical field of big data. The method comprises the steps: establishing an annotation system, wherein a person participating in the annotation to perform Chinese word segmentation, word property and named entity annotation of the original table of the medical record annotation through a Web page to generate an annotation result table, thereby solving the problem of the simple annotation of the word segmentation, word property and named entity of the electronic medical record text. The invention simultaneously stands at the perspectives of a labeler and an algorithm designer. On the one hand, the annotation system is simple and easy to use, the annotation work intensity of the labeler is minimized, and the error rate is reduced; on the other hand, the annotation system is designed to be in seemliness butt joint with a knowledge base management systemand a core algorithm system, i.e., directly injecting original electronic medical record data into the labeling system after the original electronic medical record data is preprocessed, and the output of the labeling system directly serves as the input of the core algorithm system.
Owner:THE FIRST AFFILIATED HOSPITAL OF ZHENGZHOU UNIV

Point cloud data labeling method and device

The embodiment of the invention discloses a point cloud data labeling method and device. The method comprises the following steps: obtaining a to-be-labeled point cloud data frame and corresponding acquisition equipment pose information; obtaining a to-be-displayed point cloud data frame corresponding to the labeled point cloud data frame, and displaying the to-be-displayed point cloud data frame; after a first selection operation is detected, determining first labeling box information corresponding to a to-be-labeled target; determining the current superposition frame of a superposition frame number information frame after or before the current display frame; displaying the current display frame and the current superposition frame in a superposition manner based on the current display frame and the acquisition equipment pose information corresponding to the current display frame; after a second selection operation is detected, determining second labeling box information corresponding to a to-be-labeled target in a target frame of the current superposition frame; and based on the first labeling box information and the second labeling box information, determining third labeling box information corresponding to the to-be-labeled target in each current superposition frame between the current display frame and the target frame, so that simple, convenient and effective labeling of the point cloud data is realized, the burden of labeling personnel is reduced, and the efficiency is improved.
Owner:MOMENTA SUZHOU TECH CO LTD

PU learning-based medical equipment performance index anomaly detection method and device

The invention provides a medical equipment performance index anomaly detection method and device based on PU learning, and the method comprises the steps: taking a historical key performance index (KPI) flow as training data, carrying out the clustering of the training data according to a similarity degree, obtaining a centroid curve of each cluster, and carrying out the marking of the centroid curve of each cluster, obtaining first abnormal annotation data and first non-annotation data; based on the first abnormal annotation data and the first unannotated data, constructing a binary classifier through positive example unannotated PU learning, and obtaining an abnormal label and a normal label of a centroid curve of each cluster in combination with active learning; and obtaining a label on the centroid curve of the cluster corresponding to the to-be-detected KPI flow, training an anomaly detection model corresponding to the to-be-detected KPI flow through semi-supervised learning, and detecting the to-be-detected KPI flow through the anomaly detection model. According to the method, the accuracy of medical equipment performance index anomaly detection is improved while the labeling workload is reduced to the maximum extent.
Owner:NANKAI UNIV

Power transmission line defect identification method based on saliency map and semantic embedding feature pyramid

The invention discloses a power transmission line defect identification method based on a saliency map and a semantic embedding feature pyramid. The method comprises the steps of 1, performing data cleaning and division on a data set; 2, carrying out the super-resolution image generation of the small target of the power transmission line through an EL-ESRGAN super-resolution augmentation algorithm; 3, performing image saliency detection on the data set by constructing a nested U-shaped network; step 4, carrying out data augmentation based on a saliency graph on the data set through a Gridmask and random erasure (Cut Out) algorithm, and generating a classification data set; and 5, carrying out picture classification on the normal set and the defect set by utilizing a ResNet34 classification algorithm through a feature pyramid classification network embedded by deep semantics. According to the method, image saliency detection and data augmentation are combined, the feature pyramid classification network embedded through deep semantics is used as a supplement of ResNet34 classification, the method is used for fault identification in the unmanned aerial vehicle power transmission line inspection image, and the method has high system robustness.
Owner:ZHEJIANG UNIV

Deep learning-based van door state recognition device and system

The invention provides a deep learning-based van door state recognition device and system. Side-looking, side-looking and overlooking multi-view images acquired by the image acquisition unit are fusedinto an image sample input into the deep learning network; a deep learning network is established in the identification controller; the feature convolution extraction depth is increased, a feature sharing layer is added in front of an output layer to achieve voting judgment of the state of the compartment door, multi-view compartment door area feature map fusion and sharing layer multi-feature fusion are matched with one another, and the robustness and accuracy of the network for compartment door state recognition are improved. According to the invention, automatic identification of the stateof the cargo compartment door is achieved, hidden dangers caused by opening of the compartment door during transportation can be effectively prevented, and the logistics transportation management level is improved. The license plate area and the vehicle type are recognized in the same network, so that the number of recognition networks is reduced, and the recognition efficiency is improved; and through automatic preliminary frame selection of the compartment door area in the training sample image, the annotation workload is saved.
Owner:HANGZHOU GUDEWEI ROBOT CO LTD

A method and apparatus for identifying verbal skill intent

The invention discloses a method and device for identifying verbal skill intention, and relates to the technical field of computers. One specific embodiment of the method comprises the following steps: matching an interventional verbal skill for a user verbal skill from an interventional verbal skill set, and calculating verbal skill similarity between the user verbal skill and the matched interventional verbal skill; if the verbal skill similarity is greater than the intervention threshold, identifying the verbal skill intention of the user according to the matched verbal skill intervention rule; if the verbal skill similarity is less than or equal to the intervention threshold, identifying the verbal skill intention of the user by utilizing a template rule verbal skill set or an identification model; and updating the intervention verbal skill set, the template rule verbal skill set or the identification model according to the identified verbal skill intention. According to the embodiment, the verbal skill intention can be quickly and accurately recognized, and a quick response can be made to common verbal skill; the data is updated while the user verbal skill is identified, so that the data is fully utilized in the iteration process, and the data annotation workload is reduced.
Owner:BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD +1

Method for constructing spatial topological relation in subway station based on SVG map

The invention discloses a method for constructing a spatial topological relation in a subway station based on an SVG (Scalable Vector Graphics) map. And a spatial object semantic element definition part in the subway. On the basis of indoor path planning and navigation requirements, space objects are necessarily simplified and omitted. According to the space topological relation construction part, a hidden layer is newly built on an original SVG map, and the object range on the map is marked through rectangles or line segments. Map object semantic information is described by an XML label id prefix, and space information of the map object semantic information is described by custom attribute information of XML label elements. And based on the annotated layer, writing a program to analyze the annotated layer of the SVG graph to obtain spatial object information in the subway station, a spatial topological relation data model and connection information between three-dimensional space floors. The method has the characteristics of light weight, simplicity and strong operability, and provides an enough data model basis for 2D or 2.5 D views, same-floor and cross-floor path planning and path navigation problems.
Owner:上海德鋆信息科技有限公司

System, method and device for labeling continuous frame data

The embodiment of the invention discloses a system, method and device for labeling continuous frame data. The system comprises a cloud end and a labeling end, wherein the cloud end reads continuous frame data, and performs target detection on each frame of data in the continuous frame data according to a labeling task to obtain a detection result of a to-be-labeled object in each frame of data; according to the detection result and the time sequence information of each frame of data, an association relationship between the same object to be labeled in each frame of data is established as a pre-labeling result; an extensible pre-labeling file is generated according to the pre-labeling result, and the pre-labeling file and the continuous frame data are sent to the labeling end; and the labeling end receives the continuous frame data sent by the cloud end and the corresponding pre-labeling file, and after a correction instruction for the pre-labeling file is received, the labeling file is corrected according to the correction instruction, and a target labeling result is obtained. By adopting the scheme, the manual time for marking the continuous frame data is shortened, the marking efficiency of the continuous frame data is improved, and the marking cost is reduced.
Owner:MOMENTA SUZHOU TECH CO LTD

Ore classification and size grading method and device based on deep learning network

The invention provides an ore classification and particle size grading method and device based on a deep learning network in order to solve the problem that in the prior art, an image recognition technology for analyzing ore categories and particle size distribution at the same time needs to be improved, and belongs to the technical field of ore dressing. According to the method, the improved Faster-RCNN target detection network in computer vision is applied to extract features, classification and positioning of ores are completed at the same time, and an artificially designed feature extractor is replaced; through the ore position extracted by the target detection network, segmenting the ore by using an FCN semantic segmentation network to obtain granularity information of the ore; moreover, the high-quality image information is obtained by carrying out the data preprocessing work of contrast-limited adaptive histogram equalization, white noise removal and the like on the image; and meanwhile, the ore is classified and segmented by combining target detection and semantic segmentation technologies, so that the efficiency of the crusher is improved, the crushing energy consumption is reduced, and guidance is provided for subsequent processes.
Owner:ANSTEEL GRP MINING CO LTD
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