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153results about How to "Precision Fusion" patented technology

Dual-CCD (Charge Coupled Device) scanning imaging detection method for continuous casting slab surface defects

The invention discloses a dual-CCD (Charge Coupled Device) scanning imaging detection method for continuous casting slab surface defects. The dual-CCD scanning imaging detection method comprises the following steps: (1) mounting a linear array CCD camera, an area array CCD camera and a linear laser transmitter on a continuous casting slab; (2) scanning by the linear array CCD camera and the area array CCD camera according to a synchronous frame frequency and line frequency manner to obtain a two-dimensional image and a three-dimensional image of the surface of the continuous casting slab; (3) registering the acquired two-dimensional image and three-dimensional image; and (4) carrying out information fusion processing on the registered two-dimensional image and three-dimensional image in one area on the surface of the continuous casting slab, analyzing area-of-interest features of the two images, and extracting a final area-of-interest to be identified on the surface of the continuous casting slab by combining the feature fusion processing result of the two images, thus reserving reliable defect information of the surface of the casting slab and detecting the surface defects of the continuous casting slab. According to the dual-CCD scanning imaging detection method provided by the invention, the structure is simple and convenient; the method is high in detection precision, great in real-time property and capable of automatically eliminating interference information.
Owner:CHONGQING UNIV

Bus road condition processing system and method based on traffic multi-source data fusion

The invention discloses a bus road condition processing system and method based on traffic multi-source data fusion. The bus road condition processing system comprises a preprocessing module, a source data processing module, a data source evaluation module and a data fusion module. The preprocessing module is used for processing traffic multi-source data; the source data processing module is used for processing data of a non-bus data source road condition calculation result; the data source evaluation module comprises an evaluation framework used for evaluating the quality of data sources, and the credibility of multi-source data to the bus road condition calculation result can be obtained through processing of the evaluation framework; the data fusion module is used for performing weighted calculation on the multi-source data based on the data source evaluation result, and finally the required bus road condition data are obtained; a display module is used for superposing a bus road condition map and a map file obtained through processing and displaying road condition information of the whole bus road network. By synthesizing the multiple traffic data source road condition calculation results, the advantages of all the sides can be made the best of, the fusion result information used for describing the bus road conditions can be obtained, and data support is provided for bus service.
Owner:BEIHANG UNIV

ROS-based laser radar and camera fusion calibration system and calibration method

The invention relates to an ROS-based laser radar and camera fusion calibration system and calibration method, and the system comprises: a radar calibration module which is used for obtaining the external parameters of a laser radar, i.e., the conversion relation from a radar coordinate system of the laser radar to a world coordinate system; a camera calibration module which is used for acquiringinternal parameters of the camera; a fusion calibration module which is used for receiving the external parameters of the laser radar and the internal parameters of the camera and solving the externalparameters of the camera, namely solving a transformation relation from a world coordinate system to a camera coordinate system. Data transmission among the radar calibration module, the camera calibration module and the fusion calibration module is realized based on an ROS platform. the radar calibration module comprises a laser radar, a pile barrel and two calibration plates, and the camera calibration module comprises a camera and a calibration plate. According to the space synchronization method for realizing data fusion of the laser radar and the camera, the defects of insufficient sensing dimension, lack of information and the like existing in the conventional single sensor sensing are overcome.
Owner:SOUTHEAST UNIV

Visual speech multi-mode collaborative analysis method based on emotion context and system

The invention discloses a visual speech multi-mode collaborative analysis method based on an emotion context and a system. The method includes (S1) dynamically extracting and analyzing emotion context information based on a situation and an analysis object in a visual speech situation; (S2) extracting visual emotion characteristics of the analysis object in the visual situation and speech emotion characteristics of the analysis object in a speech situation in real time; (S3) carrying out structural sparse representation for the emotion context information, posture characteristics, expression characteristics and the speech emotion characteristics; and (S4) carrying out collaborative analysis and identification for the multi-mode emotion information by means of sentiment classification agents. Due to the facts that the emotion context information, the posture characteristics, the speech emotion characteristics and the expression characteristics include large amounts of emotion information, the emotion information is complementary, and the structural sparse representation and collaborative analysis through multiple sentiment agents are combined, emotion of a to-be-analyzed person is precisely analyzed on the condition that partial channel information is lost, and precision and robustness of emotion analysis in the natural interactive environment can be improved.
Owner:JIANGSU UNIV

Combined navigation method based on INS (inertial navigation system)/GPS (global position system)/SAR (synthetic aperture radar)

A combined navigation method based on an INS (inertial navigation system)/GPS (global position system)/SAR (synthetic aperture radar) comprises steps as follows: an INS receiver, a GPS receiver and an SAR sensor are mounted in appropriate positions of an unmanned aerial vehicle in parallel; image matching is performed, and position navigation deviation of the INS is obtained and taken as an observed quantity to be input into a filter, and the observed quantity and other observed quantities are jointly filtered; GPS measuring deviation is obtained and taken as an observed quantity to be input into the filter, and the observed quantity and other observed quantities are jointly filtered; the filter integrates the measuring deviation from the GPS and the position navigation deviation, obtained through image matching, from the INS, and a navigation error estimated value is calculated. Topographic features are automatically and reliably extracted from an SAR image, a map image is formed in a digital map, and the SAR topographic features are automatically predicted; topographic deviation is accurately estimated and integrated; capture and matching are automatically initialized; the fault tolerance capability, the autonomy and the reliability of navigation are high.
Owner:HENAN POLYTECHNIC UNIV

Adaptive scale image sequence target tracking method based on feature filtering and fast motion detection template prediction

The present invention provides an adaptive scale image sequence target tracking method based on feature filtering and fast motion detection template prediction. The method comprises the following steps of: 1, specifying a to-be-tracked object in an initial frame, transforming the object into a frequency domain by fast Fourier transformation based on a Gaussian kernel, and constructing a feature filter; 2, constructing a fast motion prediction template; 3, constructing an object imaging scale change model; 4, in a second frame, acquiring a predicted position of the object by the fast motion prediction template, acquiring a position of a corresponding matched search box according to the object imaging scale change model by using the predicted position as the center, performing filteration by the feature filter, regarding a position of a maximum response value as an object location, and simultaneously, generating a new feature filter and using the new feature filter as a to-be-used feature filter in a next frame; 5, sequentially repeating the step 4 in subsequent frames until a video or image sequence is finished. The method provided by the present invention is effectively applicable to tracking of a distant and small object in a complicated background and has good tracking performance.
Owner:ZHEJIANG UNIV OF TECH

Surgical microimaging system based on optical coherence tomography augmented reality

The invention discloses a surgical microimaging system and method based on optical coherence tomography augmented reality. The system comprises a surgical microscopic unit which is used for collectingtwo-dimensional microscopic images of a surgical region, an optical coherence tomography unit which is used for collecting OCT three-dimensional images of the surgical region, a guiding light sourcewhich can be captured by a camera of the surgical microscopic unit and is used for projecting a guiding light spot synchronized with an OCT scanning light source of the optical coherence tomography unit, a processing control unit which is used for acquiring the two-dimensional microscopic images and OCT three-dimensional images of the surgical region, as well as images after the two-dimensional microscopic images and the OCT three-dimensional images of the surgical region are fused, and a display unit which is used for outputting and displaying results of the control unit. The surgical microimaging system can be used for accurately registering and fusing two-dimensional microscopic images and OCT three-dimensional images, realizes microscopic image real-time augmentation of microscopic images of the surgical region, provides intuitive navigation information to surgery, and realizes intuitive surgical guidance.
Owner:SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI

High-voltage insulation fault diagnosis method based on heterogenous image temperature rise and partial discharge characteristics

The invention relates to a high-voltage insulation fault diagnosis method based on heterogenous image temperature rise and partial discharge characteristics. The high-voltage insulation fault diagnosis method based on heterogenous image temperature rise and partial discharge characteristics includes the steps: extracting the contour of an infrared image and the contour of an ultraviolet image; performing image registering based on the contour information to obtain the optimal affine transformation parameter; by means of the optimal affine transformation parameter, performing ultraviolet imagetransformation, extracting the ultraviolet spot contour diagram and the ultraviolet gray level image of the ultraviolet image after transformation, and performing fusion of the infrared image and theultraviolet image; and extracting the greatest temperature rise and the partial discharge characteristics from the fused image, and at the same time constructing a fuzzy logical reasoning system to perform external insulation fault diagnosis. Compared with the prior art, the high-voltage insulation fault diagnosis method based on heterogenous image temperature rise and partial discharge characteristics has the advantages of reducing the information redundancy, being more visual in the images, improving the detection accuracy, being stable in the algorithm, being high in the information reservation degree, being high in the applicability and the like.
Owner:TONGJI UNIV

Multi-functional headset intelligent fire fighting system and control method thereof

ActiveCN107261374ASelf-protection, efficient rescue and fire extinguishingAchieve self-protectionFire rescueEngineeringHigh frequency vibration
The invention discloses a multi-functional headset intelligent fire fighting system and a control method thereof. According to the multi-functional headset intelligent fire fighting system, a vibration-resistant platform is adopted to eliminate high-frequency vibration in the movement process of a fireman, an ultrasonic sensor makes up for the deficiencies of an infrared camera on deep information perception, and three-dimensional physical environment and temperature field distribution in a fire scene environment are calculated through a fusion algorithm; meanwhile, a combined sensor of GPS and inertial measurement and a magnetic field sensor are adopted, inertial movement information, magnetic field information and position speed information are fused, and information, such as a position, a speed, a posture and the like, relative to a node can be accurately acquired, so that a position and a direction of the node in a whole fire scene is assisted to be accurately established, and the three-dimensional physical environment and the temperature field distribution in the whole fire scene environment is established accurately by integrating various nodes; and in addition, by combining with historical data, optimal action strategy is obtained. The multi-functional headset intelligent fire fighting system accurately perceives the fire scene environment, rapidly analyzes a form of a fire and can perform intelligent decision, and thus own protection and efficient rescue and fire-fighting of the fireman is realized.
Owner:魏涵潇 +2
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