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213 results about "Motion analysis" patented technology

Motion analysis is used in computer vision, image processing, high-speed photography and machine vision that studies methods and applications in which two or more consecutive images from an image sequences, e.g., produced by a video camera or high-speed camera, are processed to produce information based on the apparent motion in the images. In some applications, the camera is fixed relative to the scene and objects are moving around in the scene, in some applications the scene is more or less fixed and the camera is moving, and in some cases both the camera and the scene are moving.

Ultrasonic image enhancement and motion analysis system for real-time uterine contraction detection

The invention relates to the technical field of image enhancement, in particular to an ultrasonic image enhancement and motion analysis system for real-time uterine contraction detection. The system comprises the steps of obtaining ultrasonic images of different frames of uterine contraction detection, determining uterine contraction evaluation characteristic values according to gradient directions and position distribution of image angular points, performing screening to obtain target characteristic points, performing similarity analysis according to motion vectors of the target characteristic points in a neighborhood, determining continuous coefficients, performing clustering according to the continuous coefficients, and performing clustering according to different clustering clusters. Analyzing the uterine contraction change track in the time sequence, obtaining a uterine contraction rule change value of each target feature point, and obtaining an enhancement adjustment coefficient of each target feature point according to the uterine contraction rule change value of the target feature point and the uterine contraction evaluation feature value; and performing image enhancement on the uterine contraction detection ultrasonic image based on the enhancement adjustment coefficient. According to the invention, adaptive image enhancement can be realized, the motion trail of uterine contraction can be displayed more clearly by the enhanced image, and the imaging effect is improved.
Owner:LIAONING AIKESEN INFORMATION TECH CO LTD

Laser targeting training management system

The invention relates to the technical field of action analysis, in particular to a laser targeting training management system which comprises an immersive training environment module, a biological characteristic analysis module group, an intelligent trajectory management module group, a federal learning center module group, a tactical training management module group and a command and control system module group. Compared with the limitation of lack of battlefield dynamic complexity simulation by adopting a static preset scene in the prior art, the scheme deeply integrates multi-physical field environment control, intelligent target dynamic coordination and a cross-sensory feedback technology to construct an immersive battlefield space with temperature and humidity gradient adjustment, explosion shock wave simulation and geographic space accurate reconstruction linkage; therefore, multi-dimensional collaborative transition from single-dimensional visual simulation to tactile sense / auditory sense / olfactory sense / somatosensory is realized, so that soldiers can obtain subversive environment adaptability and tactical decision-making ability exercises in a comprehensive battlefield pressure environment close to reality.
Owner:XINRUI ZHICHENG (JIANGSU) OPTOELECTRONIC TECHNOLOGY CO LTD

Athletic injury real-time early warning and health optimization system based on multi-mode infrared thermal imaging and three-dimensional skeleton posture fusion

The invention relates to a sports injury real-time early warning and health optimization system based on multi-mode infrared thermal imaging and three-dimensional skeleton posture fusion, and belongs to the field of sports health management. The problems of motion analysis lagging, damage identification missing and cross-scene data splitting of a traditional monitoring means are solved. According to the technical scheme, the system comprises a multi-modal motion data sensing module which synchronously collects human thermodynamic distribution, three-dimensional skeleton postures and surface electromyogram signals through an infrared thermal imaging camera, an RGB-D camera and a bioelectric sensor; an AI driving training optimization engine is used for generating an adjustment instruction in real time based on a muscle thermal gradient and joint trajectory deviation degree dual-threshold model; and the full-scene intelligent management platform executes millisecond damage early warning, metabolic optimization and school-family health data closed-loop management. The technical effects are that the exercise safety guarantee is fundamentally improved, the training is scientifically optimized, the metabolism management accuracy is broken through, and the teaching resource allocation is intensive.
Owner:CHONGQING NORMAL UNIVERSITY

Virtual reality-based dance teaching equipment and teaching method thereof

The invention provides virtual reality-based dance teaching equipment and a teaching method thereof, and the equipment comprises a VR module which is used for providing multi-view immersive visual experience; the motion capture module is used for capturing the joint angle of the dancer in real time and the limb track feedback module and is used for simulating the ground counter-acting force in dancing through vibration or pressure, enhancing motion perception and providing a touch prompt for motion correction; the virtual scene module is used for creating a dance virtual scene; and the action analysis module analyzes the joint action deviation based on multiple view angles, generates an instant score according to the joint angle deviation and the rhythm synchronization rate, and records historical data to generate a progress curve. According to the method, the problems of resource shortage, feedback lag and other pain points in traditional dance teaching are solved, efficient, personalized and interesting dance learning experience is achieved through multi-modal interaction and a dynamic adjustment mechanism, and the application of the method is expected to promote dance education to develop in the intelligent and universal direction.
Owner:罗光丽

Systems and methods for privacy-aware weapon anomaly detection via integrated object recognition and skeletal motion analysis

Systems, methods, and frameworks are provided for privacy-aware weapon anomaly detection via integrated object recognition and skeletal motion analysis. This framework integrates real-time object detection and motion analysis to identify weapon anomalies in video surveillance while preserving privacy. The framework combines a fine-tuned object detection model, a head-segmentation module for anonymizing unarmed individuals, and a skeleton-based motion analysis module to detect threatening behaviors. By refining and fusing detection and motion analysis outputs, the framework enhances detection accuracy and reduces false positives, thereby providing a reliable solution for intelligent, privacy-preserving surveillance applications.
Owner:FLORIDA INTERNATIONAL UNIVERSITY

Oral cavity three-dimensional motion analysis system based on dynamic occlusion scanning

The invention relates to the technical field of three-dimensional analysis, in particular to an oral cavity three-dimensional motion analysis system based on dynamic occlusion scanning. The system comprises an oral cavity occlusion feature extraction module, a dynamic occlusion reconstruction module, an occlusion track smoothing module and an oral cavity motion abnormity identification module, and a multi-view structured light scanner can be used for carrying out image scanning on the oral cavity in the dynamic occlusion process so as to obtain a multi-frame original occlusion image sequence; occlusal feature extraction and three-dimensional occlusal reconstruction are carried out on the multiple frames of original occlusal image sequences to construct corresponding three-dimensional occlusal model sequences; a dynamic occlusion trajectory prediction model is constructed based on the three-dimensional occlusion model sequence, oral cavity three-dimensional motion analysis and occlusion trajectory smoothing filtering processing are carried out, and a smooth three-dimensional occlusion motion trajectory is generated; and performing oral cavity motion abnormity identification according to the smooth three-dimensional occlusion motion track so as to generate an oral cavity occlusion three-dimensional motion abnormity identification result. According to the invention, accurate capture and analysis of three-dimensional motion of the oral cavity can be realized.
Owner:姜树平

Pet guy rope state detection method and system based on collaborative motion analysis

The invention discloses a pet guy rope state detection method and system based on collaborative motion analysis. The method comprises the following steps: acquiring a to-be-detected video stream; performing target detection and target tracking on each frame of image to obtain a first position information sequence of at least one target person and a second position information sequence of at least one target pet, and allocating a unique identifier ID for each target person and each target pet; respectively calculating the motion characteristics of each target person and each target pet in the time sequence; pairwise pairing is carried out based on the motion features, and the collaboration degree of the motion system is calculated; if the synergy degree is preset to be a synergy degree threshold value th, judging that the target pet is in a rope pulling state, otherwise, judging that the target pet is in a non-rope pulling state; and updating the rope pulling state of the corresponding target pet ID, and generating early warning information based on the final state of all the target pet IDs. The pet guy rope detection accuracy is remarkably improved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Marine dynamic flexible riser motion response reconstruction method based on monitoring data

The invention relates to the technical field of flexible riser motion analysis, in particular to a marine dynamic flexible riser motion response reconstruction method based on monitoring data, which comprises the following steps of: arranging sensors in a flexible riser system by adopting a structure embedded type arrangement method or an external attachment type arrangement method, and optimizing a sensor arrangement mode; a data acquisition and transmission system is arranged on an ocean platform to obtain flexible riser motion response data, the flexible riser motion response data is converted into flexible riser displacement data based on a Timoshenko beam model and Tikhonov regularization, the flexible riser displacement data is subjected to noise reduction processing based on a wavelet threshold noise reduction method to obtain flexible riser displacement noise reduction data, and the flexible riser displacement noise reduction data is subjected to flexible riser displacement noise reduction. And motion response reconstruction is performed on the flexible riser displacement noise reduction data based on variational mode decomposition (VMD). According to the method, the data interpretability, the data reconstruction precision and the real-time performance of motion reconstruction of the flexible riser can be effectively improved.
Owner:TIANJIN UNIV

Multi-dimensional tennis action analysis system

The invention relates to the technical field of artificial intelligence, in particular to a multi-dimensional tennis action analysis system, which comprises a data acquisition module, a data preprocessing module, an evaluation analysis module and a feedback interaction module, and is characterized in that the data acquisition module comprises a posture data acquisition unit, a ball path and walking tracking unit and a motion parameter acquisition unit; the data preprocessing module carries out space-time calibration on posture, track and motion parameters based on a timestamp synchronization mechanism, a fusion data set is formed through data cleaning and standardization processing, and the evaluation analysis module is used for distinguishing action types, integrating scores of posture dimensions, power generation dimensions and drop point dimensions and generating a comprehensive evaluation report; and the feedback interaction module displays an evaluation result in real time on an interface based on characters and visual icons and outputs historical analysis. According to the invention, the data validity is guaranteed, the error interference is eliminated, the analysis efficiency and the professionality of the evaluation result are improved, the use threshold is reduced, and the universality and practicability of the system are improved.
Owner:SICHUAN UNIV

Power line fog penetration monitoring method, system and device based on polarization-infrared multi-mode fusion and medium

The invention discloses a power line fog penetration monitoring method, system and device based on polarization-infrared multi-mode fusion and a medium. An atomic clock is tamed to trigger infrared pulse and polarization exposure, and pixel offset caused by jitter of an unmanned aerial vehicle is compensated through an image motion analysis method; constructing a polarization physical model, and establishing a relationship between the fogdrop particle size and the polarization degree; performing multi-modal feature fusion, constructing a double-branch deep learning network, and performing output judgment on the image according to a dynamic fusion strategy; and optimizing conductor features and insulator features in the power line through a special convolution kernel, and accurately extracting target features.
Owner:GUIZHOU POWER GRID CO LTD

Visual servo grabbing dynamic compensation system

The invention relates to the field of industrial robot visual servo control, in particular to a visual servo grabbing dynamic compensation system. The system comprises an image acquisition module, a motion analysis module, a local modeling module, a prediction module and a compensation execution module. A target image sequence is continuously captured, a motion track is extracted, a non-parametric local motion model is established based on recent data, the position of a target at the future grabbing moment is predicted, and a compensation signal is generated according to a prediction result to adjust the grabbing track of a robot. According to the method, the motion model is constructed by adopting a local weighted regression method, accurate description and rapid adaptation of various motion modes are realized through adaptive bandwidth adjustment and an online updating mechanism, and the grabbing success rate of a moving target is effectively improved.
Owner:SHANDONG AGRI & ENG UNIV

Sewage pipeline flow measuring device and method based on dynamic image analysis

The invention relates to the technical field of flow measurement, in particular to a sewage pipeline flow measurement device and method based on dynamic image analysis, and the device comprises a rod body, a control system, a particle release module, a track acquisition module and an image and motion analysis module; the control system is arranged at the top end of the rod body; the track acquisition modules are arranged at the bottom of the rod body; the particle release module is used for storing fluorescent particles and releasing the fluorescent particles into the sewage pipeline to be detected under the control of the control system; the track acquisition module is used for shooting the interior of the sewage pipeline to be detected to obtain an image containing fluorescent particles; the image and motion analysis module is used for analyzing the motion characteristics of the fluorescent particles released in the sewage pipeline to be detected so as to determine the flow of the sewage pipeline to be detected. Thus, the bottom of the device is placed in the sewage pipeline to be detected, the motion characteristics of the fluorescent particles are determined by shooting the tracks of the fluorescent particles, the flow of the sewage pipeline is determined, and the device is efficient, accurate and low in operation difficulty.
Owner:LIAONING UNIVERSITY OF TECHNOLOGY +1

Three-dimensional human body posture estimation method fusing anatomical structure prior and state space modeling

The invention discloses a three-dimensional human body posture estimation method fusing anatomical structure prior and state space modeling, and belongs to the technical field of computer vision. According to the method, a 2D human body posture key point sequence is obtained and is embedded into a high-dimensional feature space through a linear projection layer to obtain joint feature representation; the method comprises the following steps: constructing a backbone network containing a plurality of TriadFormer modules, wherein each TriadFormer module is integrated with a graph convolutional network GCN, a hierarchical part internal order state space model HIP-SSM and a limb pilot asymmetric local-global converter LimbFormer; capturing local spatial dependence through GCN, injecting anatomical structure prior by HIP-SSM and modeling chain kinematics dependence, and strengthening intra-limb collaboration and cross-limb global interaction through LimbFormer; and finally, a three-dimensional human body posture estimation result is obtained through mapping of a linear projection output head. According to the method, through multi-module collaborative modeling, the human anatomical structure and kinematics constraints are deeply fused, the precision and robustness of attitude estimation in a complex scene are improved, the calculation efficiency is considered, and the method is suitable for multiple fields such as human-computer interaction and motion analysis.
Owner:CHONGQING UNIV OF TECH

Markerless motion analysis

Systems, methods, and computer-readable storage devices are disclosed for improving markerless motion analysis of an object in contact with a user. One method including: receiving position data of an object in motion captured by at least one camera; enhancing, using model equations, three-dimensional (3D) angular kinematic data of the position data of the object, wherein the enhanced 3D angular kinematic data includes increased measurement accuracy of the position data of the object; and providing the enhanced 3d angular kinematic data for display to evaluate motion performance of the object.
Owner:GOLFTEC ENTERPRISES LLC

Face recognition intelligent footpath terminal system applied to scenic spot

The invention relates to the technical field of computer vision, in particular to a face recognition intelligent footpath terminal system applied to a scenic spot, which comprises a face image acquisition module, a feature point positioning module, a vertical motion analysis module, an energy consumption judgment module and a data communication module. According to the method, a time sequence vertical velocity difference and vertical kinetic energy quantification model is constructed through the displacement of the eyebrow arch key points in the continuous image, and movement intensity periodic data is formed by continuous displacement change, acceleration amplitude and duration, so that the local fine movement of the face is stably analyzed; dynamic behavior characteristics are kept in differential expression in illumination fluctuation and attitude change environments, so that the system obtains higher dynamic judgment consistency in a complex footpath scene, the accuracy and continuity of passenger flow recognition and behavior statistics are enhanced, uploaded data have clearer motion quantification significance and reliability, and the system is more suitable for popularization and application. And the problems of statistical offset and judgment lag caused by dynamic environment interference are improved.
Owner:济南天下第一泉风景区服务中心

Tracking motion analysis method and system based on four-wheel-drive-wheel type ROS platform

The invention discloses a tracking motion analysis method and system based on a four-wheel drive wheel type ROS platform, and the method comprises the steps: obtaining an RGB image and depth information, carrying out the preprocessing, extracting two-dimensional coordinates of a joint key point, and mapping the two-dimensional coordinates into three-dimensional coordinates; calculating to obtain a target center point coordinate; the rotation angle and the movement distance are converted into movement instruction signals; constructing a skeleton edge set, extracting spatial features and dynamic features through calculation, and integrating the spatial features and the dynamic features to obtain a fusion feature vector; inputting the fusion feature vector into a preset action evaluation model, and outputting an evaluation result; and generating personalized action correction feedback according to an evaluation result. According to the method, target tracking, motion capture, dynamic evaluation and personalized feedback generation can be realized in a mobile environment, so that the scientificity, the real-time performance and the intelligent level of training are remarkably improved.
Owner:QILU UNIVERSITY OF TECHNOLOGY (SHANDONG ACADEMY OF SCIENCES) +1

Motion information extraction and fast optical flow calculation system based on memristor

ActiveCN120707601AImage enhancementImage analysisEngineeringMotion cues
The invention relates to the technical field of computer vision and neuromorphic calculation, in particular to a memristor-based motion information extraction and fast optical flow calculation system, which comprises a front-end imaging module, a rear-end imaging module, a memory module and a signal processing module, and is characterized in that the front-end imaging module is used for acquiring a visual scene and converting the visual scene into an analog voltage signal; the voltage conversion module is used for extracting a light intensity change condition based on the analog voltage signal; the neuromorphic module is used for coding time dynamic information of a visual scene according to the light intensity change condition; and the signal processing module is used for extracting a time motion clue based on the time dynamic information and carrying out optical flow calculation on a corresponding region of the time motion clue. According to the invention, efficient motion analysis can be realized, and the optical flow calculation speed is improved.
Owner:BEIHANG UNIV

Cutter wear monitoring system based on numerically controlled lathe cutter use video

The invention relates to the technical field of tool monitoring, in particular to a tool wear monitoring system based on a numerically controlled lathe tool use video. The system comprises a video acquisition and motion analysis module, a texture evolution analysis module, a key frame judgment and generation module, a visual feature extraction module, a time sequence change rule analysis module, a feature screening module and a wear judgment module, and is used for acquiring a continuous video stream of a machining area, identifying a contact area of a cutter and a workpiece, tracking a pixel motion track and judging the wear of the workpiece. Recording texture structure change to generate a surface texture evolution sequence; determining a key video frame and generating a sequence, extracting a first-order wear feature, and analyzing a feature dimension time sequence change rule to obtain a time sequence change curve; comparing the curve with a reference curve form, screening refining wear characteristics, and generating a wear process judgment result according to a time sequence evolution trend; the tool wear monitoring efficiency can be improved.
Owner:BAOJI SHANQI JINGGONG INTELLIGENT EQUIP CO LTD

IMU visual fusion motion analysis method and system

The invention discloses an IMU (Inertial Measurement Unit) visual fusion motion analysis method which comprises the following steps: a multi-source data synchronous acquisition step: acquiring three-dimensional linear acceleration and angular velocity original data through an inertial measurement unit, and acquiring a visual image sequence at the same time; a dynamic zero offset compensation step: executing a preset action on the inertial original data to calculate a zero offset compensation value; a time-space synchronization triggering step: generating a synchronization signal when detecting that the calibration inertial data reaches a preset threshold value, and establishing a mapping relationship between the timestamp and the visual frame sequence; a motion attitude fusion step: taking an attitude derived from calibration inertial data as prediction input, taking a joint coordinate extracted from a visual image sequence as observation input, and updating a fusion state through Kalman filtering; and a quantitative index extraction step: calculating a joint motion range, a motion instantaneous rate and a coherence coefficient. The method solves the technical realization problem of multi-source data acquisition and fusion, improves the accuracy and real-time performance of motion analysis, and is suitable for the fields of motion teaching and rehabilitation training.
Owner:SHENZHEN EARTH ELECTRONICS CO LTD

Intelligent image stabilization method and system for unmanned intelligent turntable

The invention provides an intelligent image stabilization method and system for an unmanned intelligent turntable. According to the method, an interference library is updated by acquiring electromagnetic interference data, and a signal-to-noise ratio is monitored to generate notch filtering parameters. Based on the parameters, a wave trap is adjusted, non-linear compensation and frequency domain equalization are synchronously triggered, image key frame abrupt change signals are identified at the same time, compensation intensity is adjusted, and closed-loop suppression is formed. In a closed loop, an inner loop extracts high-frequency jitter, an outer loop fuses interference prediction to generate primary parameters, and a cross-domain suppression instruction is output after motion analysis. And instruction-driven anti-interference coding: processing rotation suppression by an attitude coding scheme, processing electromagnetic suppression by a hierarchical error correction protocol, and performing closed-loop verification through link feedback. A verification result is fed back to update the interference library and the compensation intensity, cooperative control of electromagnetic interference and mechanical jitter is achieved, and a stable image is output. By constructing a dynamic closed-loop suppression mechanism, electromagnetic interference and mechanical jitter of the rotary table are cooperatively suppressed, and stable image output of the unmanned intelligent rotary table is realized.
Owner:LUSTER LIGHTWAVE CO LTD

Affine motion estimation method for dynamic point cloud

The present invention provides an affine motion estimation method for a dynamic point cloud. The method comprises the following steps: (1) point cloud preorder motion analysis: reading a point cloud sequence to be processed, estimating an affine motion field of the current point cloud starting from a third frame, and performing, on a point cloud having undergone preorder decoding, inter-frame geometric motion analysis to obtain motion prior information; (2) point cloud subset division based on the motion prior information; and (3) affine motion estimation of point cloud subsets: establishing a geometric matching relationship between a reference point cloud subset and the current frame, obtaining an affine transformation matrix between a reference frame subset and the current frame on the basis of singular value decomposition, and iterating all the point cloud subsets to complete affine motion estimation from reference frames to the current frame. The method of the present invention further improves the compression performance of a dynamic point cloud.
Owner:PEKING UNIV SHENZHEN GRADUATE SCHOOL

Visual perception and trajectory restoration method, system and device for chicken motion analysis and anomaly detection in large-cage farm and storage medium

PendingCN121963310AAddressing Monitoring NeedsSolve ID driftBiological modelsBiometric pattern recognitionVideo monitoringAlgorithm
The invention discloses a visual perception and trajectory restoration method, system and device for chicken motion analysis and anomaly detection in a large cage farm and a storage medium, and relates to the technical field of video monitoring and behavior analysis. Carrying out fine feature extraction by adopting a space and channel attention mechanism; fine features are combined with Kalman filtering and a Hungary algorithm, chicken individual identities are continuously tracked and adjusted through time sequence prediction and space matching, and a target bounding box is output; adjusting the individual identity of the chicken according to tracking, performing smooth repair on interrupted and shielded trajectory segments through spline interpolation and Kalman filtering, and performing reasonable trajectory recovery by adopting biological kinematics constraint; based on the target bounding box, a frequency domain feature analysis mechanism and a deep learning coding technology are introduced, a behavior feature vector is generated, and health early warning is triggered according to the abnormal confidence coefficient; according to the method, the chicken monitoring precision and the anomaly detection reliability are improved.
Owner:NANJING AGRICULTURAL UNIVERSITY +2

Deblurring images

Systems and techniques are described herein for deblurring images. For instance, a method for deblurring images is provided. The method may include identifying, using motion analysis, a portion of an image; identifying an edge associated with the portion; determining an amount of blur of the edge; based on the amount of blur of the edge exceeding a blur threshold, deblurring the portion of the image to generate a deblurred portion of the image; and combining the deblurred portion of the image with other image data to generate a deblurred image.
Owner:QUALCOMM INC

Intelligent ai golf teaching camera

This utility model discloses an intelligent AI golf teaching camera, including a front shell and a rear shell, which are connected by a snap-fit. The front shell has a fixed glass panel and a camera bracket installed inside. The bracket has a posture camera and a trajectory camera tilted on it, which are used to collect the swing action and the ball trajectory, respectively. The outer side of the front shell has an elliptical conical opening that matches the camera, forming an "eyelash"-like anthropomorphic design. The motherboard integrates a BirdieCoach hardware module, which completes the core AI calculation through a local main control unit. The mobile phone is only used as a display and interaction medium. The rear shell has a fan bracket that holds the battery. The fan is close to the motherboard and the battery, and together with the bottom ventilation port, it forms an active heat dissipation channel. The rear shell has a built-in magnetic ring for easy installation. The motherboard integrates an IMU sensor to calibrate the tilt state of the device in real time. This design achieves high-precision motion analysis and teaching guidance through dual-camera collaboration, local AI calculation, and emotional interaction, and is portable, has efficient heat dissipation, and strong user stickiness.
Owner:SHANGHAI XUNLING TECHNOLOGY CO LTD

Water pick frequency detection method, device and equipment, storage medium and computer program product

The invention relates to the technical field of medical instrument detection, in particular to an oral irrigator frequency detection method, device and equipment, a storage medium and a computer program product. According to the method, jitter data of a flexible water guide pipe under the action of water flow agitation are obtained, one end of the flexible water guide pipe is connected with a nozzle of a to-be-detected oral irrigator, and the other end of the flexible water guide pipe is inserted into a water container; extracting a jitter image sequence in the jitter data; removing a horizontal dithering image sequence in the dithering image sequence to obtain a vertical dithering image sequence; performing inter-frame motion analysis on the vertical jitter image sequence to obtain periodic jitter displacement information; and according to the periodic shaking displacement information, the water outlet frequency of the to-be-detected oral irrigator is determined, so that the convenience and accuracy of frequency detection of the oral irrigator are improved.
Owner:RISUN TECH (SHENZHEN) LTD

Handheld net capture launching system for low-altitude target trajectory prediction

The invention discloses a handheld net capture launching system for low-altitude target trajectory prediction, and relates to the technical field of anti-unmanned aerial vehicles, and the technical scheme is characterized in that the method comprises the steps: obtaining the image information of an unmanned aerial vehicle, and obtaining the position, speed information and acceleration information of a target unmanned aerial vehicle through the motion analysis of continuous frames; and inputting the position, speed information and acceleration information of the unmanned aerial vehicle into a Kalman filtering algorithm to obtain a predicted trajectory of the unmanned aerial vehicle, and calculating a predicted net capturing position after delta t time. According to the visual guidance provided by the invention, the target trajectory prediction result is visually presented to the user, so that the operation difficulty of the equipment is reduced, and non-professionals can also quickly master and accurately hit the target.
Owner:BAY AREA LOW ALTITUDE RESEARCH INSTITUTE (GUANGDONG) CO LTD

A video matching method for uncertainty perception in ophthalmic surgical navigation

PendingCN122313363AOcular operationAnatomical structures
This invention provides a video matching method for uncertainty-aware navigation in ophthalmic surgery, comprising: performing anatomical structure segmentation and neighboring frame fusion matching based on ophthalmic surgical video sequences to obtain a highly reliable neighboring frame matching library; performing motion analysis and frame pair selection and pairing based on a full-frame anatomical segmentation mask to obtain a globally selected set of difficult sample frame pairs; constructing a spatial lookup table to generate a pseudo-label training dataset; performing uncertainty-guided contrastive learning to obtain a final uncertainty-aware matching network; calculating the final filtered rotation angle using a reference frame and the current frame; and updating the incision position, capsulorhexis range, and intraocular lens implantation axis to obtain a real-time superimposed navigation visualization result. This invention can significantly reduce the algorithm training cost, enhance robustness in complex surgical environments, solve occlusion and deformation interference, effectively suppress error accumulation in semi-supervised learning, and improve the absolute accuracy of matching.
Owner:XIN HUA HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE +2

Intelligent golf glasses system and information processing method thereof

The invention discloses a golf intelligent glasses system, which comprises a sensor assembly at least comprising a camera, an inertial measurement unit IMU, a millimeter wave radar and a microphone array; the processing module is in communication connection with the sensor assembly and is used for executing environment perception, interaction recognition and golf motion analysis; the processing module comprises a multi-mode depth estimation unit used for fusing the visual and inertial data to generate environment depth information, and a golf AI analysis unit used for generating a ball hitting strategy; the display assembly is in communication connection with the processing module and comprises an optical waveguide lens and a driving unit; the driving unit is configured to drive the optical waveguide lens to display augmented reality (AR) guidance information to a wearer and to display a dynamic visual effect to an external environment. According to the invention, laser-free environment perception and personalized ball hitting strategy generation are realized, through AR guidance, double-sided display and natural interaction, the training efficiency and the use experience are improved, and the professional application of intelligent wearable equipment is expanded.
Owner:BEIJING QUANTUM HOUDE MEDICAL TECH CO LTD

Motion analysis and feedback method and device and computer readable storage medium

The invention discloses a motion analysis and feedback method and device and a computer readable storage medium, and the method comprises the steps: building a neutral position reference model based on the skeleton features of a user, and calculating the instantaneous deviation features of a real-time posture and the reference model; resolving a time domain accumulation feature representing the stubborn degree of the action error and a time domain change rate feature representing the deterioration trend of the action error in real time; retrieving the kinematic chain knowledge graph to obtain attribution information; inputting the features into an adaptive feedback control model, dynamically calculating abstract hierarchy parameters of a teaching strategy based on the magnitude of time domain accumulation features, respectively calculating mood specificity parameters and intervention opportunity parameters in combination with instantaneous deviation features and time domain change rate features, and generating prompt control parameters; and finally, system prompts are assembled based on the prompt control parameters, and self-adaptive feedback information is generated. According to the application, the crossing from mechanical error correction to adaptive closed-loop teaching can be realized.
Owner:SHENZHEN HULE TECHNOLOGY CO LTD

Motion measurement method of non-contact floating fan model

The invention belongs to the technical field of floating fan experiments, and provides a non-contact floating fan model motion measurement method, which adopts a device comprising an infrared light supplement lamp, an image collector, a PC (Personal Computer) and two cameras. Considering that a sensor cannot be additionally arranged on a fan blade and that the blade rotates and the fan floating platform also has six-degree-of-freedom movement in an experiment process, the method adopts a similar image processing method to respectively obtain space coordinates of the fan floating platform and the fan blade; and different motion analysis modes are adopted to solve each motion parameter of the floating fan. Non-contact motion measurement in the floating fan model experiment process is achieved, motion parameters of a fan floating platform and rotation parameters of fan blades can be obtained at the same time, only a binocular vision system composed of two cameras is adopted on equipment, operation is easy, analysis is reasonable, the whole measurement process is integrally and automatically completed, and the measurement efficiency is improved. And the method has a relatively high application value.
Owner:DALIAN UNIV OF TECH