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39results about How to "Solve visual" patented technology

Pedestrian re-identification method based on multi-attribute and multi-strategy fusion learning

The invention discloses a pedestrian re-identification method based on multi-attribute and multi-strategy fusion learning. The method of the invention includes the steps of in an offline training phase, firstly selecting pedestrian attributes which are easy to be judged and have a sufficient distinguishing degree, training a pedestrian attribute identifier on an attribute data set, then labeling attribute tags for a pedestrian re-identification data set by using the attribute identifier, and next, by combining the attributes and pedestrian identity tags, training a pedestrian re-identification model by using a strategy fused with pedestrian classification and novel constraint comparison verification; and in an online query phase, extracting features of a query image and images in a database by using the pedestrian re-identification model, and calculating the Euclidean distance between the feature of the query image and the feature of each image in the database to obtain the image with the shortest distance, which is considered as the result of pedestrian re-identification. In terms of performance, the features in the invention are distinguishable and high accuracy is obtained; and in terms of efficiency, the method of the invention can quickly search for the pedestrian indicated by the query image from the pedestrian image database.
Owner:HUAZHONG UNIV OF SCI & TECH

Textile form and style evaluation method based on dynamic sequence image

ActiveCN103454276ASolve visualSolve the connection relationship of static physical quantitiesMaterial analysis by optical meansSpecial data processing applicationsFactor baseAcquired characteristic
The invention relates to a textile form and style evaluation method based on a dynamic sequence image and belongs to the field of spinning. The textile form and style evaluation method based on the dynamic sequence image is characterized by comprising the following steps: carrying out dynamic shooting on a movement process of a textile fabric by using a CCD (Charge Coupled Device) digital camera to obtain a multi-frame dynamic sequence view of textile movement; extracting characteristic points from all the shot views of the same frame; carrying out stereo matching on the characteristic points of the corresponding views and calculating three-dimensional coordinates of matched points; calculating basic movement physical quantities of a textile from the obtained three-dimensional coordinates of the matched points; extracting dynamic characteristic parameters of the textile according to the basic movement physical quantities and movement characteristics of the textile; measuring physical performances of the textile; carrying out factor analysis on the measured physical quantities; calculating an incidence relation between the dynamic characteristic parameters and the physical performances of the textile; combining a form and style evaluation factor based on the measurement process of the physical performances to obtain a form and style evaluation factor based on the dynamic sequence image to finish the evaluation of the form of the textile.
Owner:SHANGHAI UNIV OF ENG SCI

ROS-based simulation method for autopilot of fixed-wing unmanned aerial vehicle

The invention discloses an ROS-based simulation method for an autopilot of a fixed-wing unmanned aerial vehicle, and the method comprises the steps: building an environment model in Gazebo, or manufacturing a digital elevation model and a satellite image, and importing the digital elevation model and the satellite image into the Gazebo for use. A modular design is adopted for an automatic drivingsystem of a single fixed-wing unmanned aerial vehicle. A whole system comprises a sensor module, a state estimation module, an unmanned aerial vehicle flight control module, a path following module, apath management module and a path planning module. The method comprises the following steps of importing the constructed model of the single fixed-wing unmanned aerial vehicle into the Gazebo, and starting to perform analogue simulation on the autopilot of the single fixed-wing unmanned aerial vehicle; based on the ROS platform, converting traditional fixed-wing unmanned aerial vehicle simulationinto modular open type robot system simulation, and providing the possibility of multi-vehicle simulation by the distributivity of the ROS platform. By utilizing a Gazebo three-dimensional physical simulation platform, the problems that a traditional simulation mode is poor in simulation visual effect, low in simulation degree and unreal in physical simulation effect are solved.
Owner:BEIJING UNIV OF TECH

Steel ball number detecting machine

The invention provides a steel ball number detecting machine, belonging to the field of detection equipment. The detecting machine comprises a worktable, a base, a laser sensor, an electrical control mechanism, a rotating mechanism, a feed mechanism and a sensing controller, wherein the feed mechanism is used for clamping or loosening the products with steel balls; the rotating mechanism is used for driving the laser sensor to rotate in 360 degrees; the laser sensor is used for detecting the positions of the steel balls; the sensing controller is used for setting the parameters indicating whether the steel balls are detected or not; and the electrical control mechanism is used for controlling the laser sensor, the rotating mechanism, the feed mechanism and the sensing controller to act. The detecting machine has the following beneficial effects: being used for detection, the detecting machine realizes large-scale and continuous automatic detection, has the advantages of convenient detection and high detection reliability, solves the problems which are ubiquitous in the prior art and are caused by visual fatigue or absent mind of the detectors, effectively avoids the possibility that the unqualified products flow to the next procedure and eliminates the potential risks of the automobiles therefrom.
Owner:耐世特凌云驱动系统(涿州)有限公司

Wide screen projection method by utilizing single projection

The invention provides a wide screen projection method by utilizing single projection. The method comprises the following steps: converting image signals of different interfaces into an RGB pixel digital signal, a synchronizing signal and a control signal; subdividing the converted RGB pixel digital signal into N numbered frames of small images, wherein N is a natural number larger than 1; scanning each frame of the subdivided small image, and simultaneously outputting a control signal corresponding to the frame of the small image so as to control light path switchover; respectively transmitting the N numbered frames of the scanned small images to an image display device; utilizing a light source to provide light rays, wherein the light rays irradiates at the image display device after being subject to preprocessing; and after processing each frame of the small image, utilizing the corresponding control signals in the step 003 to control the light path switchover so as to respectively project the small images to the corresponding positions on a screen. The invention adopts a single projection technology to realize wide screen projection; and a control IC used in the invention utilizes a group of RGB signal transmission modules, and coordinates with a group of signals to realize wide screen projection.
Owner:FUJIAN NETCOM TECH

Highway tunnel entrance and exit shading facility

ActiveCN112177628ASlow down the change of external illuminationPrevent injectionMining devicesUnderground chambersReinforced concreteClassical mechanics
The invention relates to a highway tunnel entrance and exit shading facility. The facility is suitable for an east-west tunnel entrance and exit with the speed limit ranging from 60 km/h to 80 km/h. The highway tunnel entrance and exit shading facility is composed of a supporting facility at the bottom, a connecting facility on the upper layer, a shading facility body at the top and a sight line induction system. The supporting facility comprises an arc-shaped reinforced concrete stand column; the connecting facility comprises a transverse annular arch frame, a longitudinal connecting steel pipe and an oblique connecting steel pipe; the shading facility body comprises light-transmitting plates with different light transmittances and an oblique shading plate arranged below the light-transmitting plates; the sight line induction system comprises an annular light reflection component and a flexible warning column; the annular light reflection component is a low-frequency annular light reflection component; the flexible warning column is a high-frequency flexible warning column; the reinforced concrete stand column is a medium-frequency reinforced concrete stand column; the transverseannular arch frame is a medium-frequency transverse annular arch frame; and the oblique shading plate is a high-frequency oblique shading plate. Coordination and unification of tunnel lighting energyconservation and driving safety can be achieved.
Owner:金华市公路与运输管理中心

Environment-friendly intelligent plant lamp and realization method thereof

ActiveCN107062004AMore solutions and fewer lights (Solve the problem of not being able to install too many)Electrical apparatusElectric circuit arrangementsLED circuitDriving circuit
The invention relates to an environment-friendly intelligent plant lamp and a realization method thereof. The environment-friendly intelligent plant lamp comprises a human body movement sensor, a light ray sensor, a first conditioning circuit, a second conditioning circuit, a controller, an LED drive circuit, LED illumination lamps and an EEPROM connected with the controller, wherein the input end of the first conditioning circuit is connected with the human body movement sensor, and the output end of the first conditioning circuit is connected with the controller; the input end of the second conditioning circuit is connected with the light ray sensor, and the output end of the second conditioning circuit is connected with the controller; the input end of the LED drive circuit is connected with the controller, and the output end of the LED drive circuit is connected with the LED illumination lamps; and the LED drive circuit comprises a plurality of LED drive sub-circuits and the plurality of LED illumination lamps, and the output end of each LED drive sub-circuit is connected with one LED illumination lamp. The contradiction of different preference of people and plants for light can be coordinated through the technical scheme of the invention.
Owner:河南智圣普电子技术有限公司

Manufacturing process for uvioresistant organic silica gel

The invention discloses a manufacturing process for uvioresistant organic silica gel. The manufacturing process comprises the following steps that 1, by weight, organic silicon adhesive, hydroxide polysiloxane, dibutyl tin diacetate , compound stabilizer, lubricant, 5-30 parts of enhancer, 0.02-0.05 part of pigment, 5-8 parts of flexibilizer and 30-40 parts of ultraviolet light absorber are made into paste, and the upper surface of an original silica gel layer is coated with the paste in a one-off mode, wherein the ultraviolet light absorber is chlorinated benzotriazole type ultraviolet light absorber; 2, thermo curing and photo curing are conducted on the coated original silica gel layer, so that the uvioresistant organic silica gel is obtained, the thermo curing temperature ranges from 80 DEG C to 120 DEG C, and the thermo curing time ranges from 10S to 30S. By means of the manufacturing process, the formula is modified, the method that the ultraviolet light absorber and organic silica gel function layer parent stock are mixed, heated and molten and then are drawn to form the organic silica gel is adopted, and the problems that in the prior art, organic silica gel is colored, and the visual effect is affected are solved. By means of the weather resistance of the organic silica gel, the ultraviolet light absorber is not prone to transferring, and the timeliness of the uvioresistant function is greatly prolonged.
Owner:WUXI ZHONGXING IND ADHESIVE TAPE

Operation and maintenance device for photovoltaic power station

A photovoltaic power station operation and maintenance device disclosed by the present invention comprises a shell and a cleaning brush, a solar assembly is installed at the top end of the shell, the cleaning brush is installed on a horizontally distributed transverse shaft, the top end of a vertical shaft is connected with a motor installed on the shell, and two second conical teeth are symmetrically arranged up and down. The edges of the two second conical teeth are engaged with the first conical teeth, and the two second conical teeth are rotationally installed on the vertical shaft through one one-way bearing. According to the operation and maintenance device for the photovoltaic power station, two groups of cleaning brushes rotate in different directions, so that surface dust is prevented from being sprung to other board areas in the maintenance process, the dust is gathered in the device, air pressure is generated by using rotating power to thoroughly discharge the dust, and meanwhile, the operation and maintenance device has the functions of hot spot detection and hot spot marking; the characteristic that the surface temperature of the hot spot is high is utilized to drive the memory alloy material to deform and generate driving force to complete marking of the position of the hot spot, and faster overhauling is achieved.
Owner:中电环宇(北京)建设工程有限公司

Card spacer type convection blocker

The present invention adopts a card-type spacer-type convection barrier, which includes two or more light-transmitting plates forming an interlayer. The double-layer light-transmitting plates are sealed and connected to the spacers around the light-transmitting plates, transparent fins, and fin installation barriers. It is characterized in that the spacers form a rectangular side frame, and the fins are installed on the retaining strips and the spacers are buckled through the slots. Molecular sieves or hygroscopic agents can be placed in the cavity formed between the two, and the transparent wings are vertically and parallelly arranged on the upper and lower sides. The lower fins are installed between the retaining bars. Since the above-mentioned spacers are set to form a rectangular side frame, and the fins are installed and fastened with the spacers through the slots, the manufacturing and installation process is simpler and the cost is reduced; at the same time, transparent wings are vertically and parallelly arranged on the upper, The lower fins are installed between the retaining bars, so the downward tension or gravity can be used to hang the fins, which can effectively fix the fins and solve the problem of easy sagging of the middle part of the fins when the width of the light-transmitting sandwich panel is large. It causes visual discomfort, thereby improving the reliability of use and expanding the application range of width. Compared with the existing technology, the vertical and parallel arrangement of the fins can limit the upper and lower convection and front and rear backflow of the heated air. The thermal insulation performance and light transmittance of the light-transmitting plate are improved in the same range.
Owner:潘戈

Composite inner wall with sound absorption and image display functions and application thereof

The invention belongs to the technical field of building structures, and particularly relates to a composite inner wall with sound absorption and image display functions and application thereof. The composite inner wall with the sound absorption and image display functions comprises a first layer, a second layer, a third layer, a fourth layer and a fifth layer from inside to outside, wherein the first layer is a foundation inner wall, the second layer is a keel, the third layer is a porous sound absorption plate, the fourth layer is a photochromic coating, and the fifth layer is a coated optical filter. According to the composite inner wall with the sound absorption and image display functions and the application thereof, the porous sound absorption material is applied to the inner wall ofa subway train tunnel for sound absorption and noise reduction for the first time, and the problems that when a subway train runs in a following way, the noise coupling reverberation duration of a tunnel train is long, and the sound pressure level is high are solved; and meanwhile, the photochromic technology is combined, the photochromic coating is formed on the surface of the porous sound absorption plate, and therefore a dynamic pattern can be formed on the inner wall of the tunnel, visual fatigue of a driver is eliminated, the attraction of commercial advertisements is improved, and thedual functions of noise reduction and image display are achieved. The coated optical filter matched with the composite inner wall is further additionally arranged, and the noise reduction and image display functions are further improved through the synergistic effect.
Owner:CRRC QINGDAO SIFANG CO LTD +1
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