46 results about "Full view" patented technology

The invention relates to the technical field of computer vision processing, in particular to an automatic defect positioning method based on a BIM virtual image. The method comprises the following steps: establishing a high-rise building model, and making a data set integrating an illumination condition and a full view angle; calculating camera parameters; performing cross-modal image retrieval: performing targeted optimization on the basis of a classical ResNet architecture, and constructing a backbone network structure suitable for a building image retrieval task; initializing position attitude estimation based on matching; and correcting the camera position posture. According to the method, a defect fixed frame based on a building BIM virtual image is provided, a building image data set BIM-Vision based on Revit is constructed, rich visual angles and illumination condition setting are achieved, accurate camera position postures and 3D labels between beam columns are provided, high-quality basic data support is provided for building visual research, and the method has the advantages of being high in practicability and high in practicability. And during inspection, accurate positioning of defect positions and component association can be completed only by shooting a field image, so that the field operation process is greatly simplified.

The invention discloses an unmanned aerial vehicle flight path rapid planning method for electric power tower inspection, and the method comprises the following steps: (1), obtaining the basic information of a target electric power tower, including the latitude and longitude of the tower, the altitude, the height, the voltage grade and the line topological relation; and (2) generating a full view waypoint of the tower based on the basic information: calculating the position of the waypoint through a preset distance to the tower top and a preset distance in front of the tower in combination with a three-dimensional coordinate conversion algorithm, and setting the pitch angle of a pan-tilt to be-43 degrees. According to the invention, through four core innovations of automatic generation, dynamic adaptation, intelligent emergency and cooperative management, the problems of low path planning efficiency, poor flexibility, insufficient safety and the like in the prior art are solved, the efficiency, precision and reliability of unmanned aerial vehicle electric power inspection are significantly improved, and the dependence on artificial experience and hardware cost is reduced at the same time.

One embodiment of the present invention provides a display device, comprising: a communication unit that receives content from the outside; a display including a display area for outputting the content; a motor that controls the display to expose a portion of the display area to the outside; and a control unit that controls the communication unit, the display, and the motor, wherein the control unit parses metadata of the content, converts the display to one of a zero view, a first partial view, and a full view at a first point of view on the basis of the metadata, and outputs the content to a converted display area, wherein the zero view is a state in which the display area is minimally exposed to the outside, the first partial view is a state in which the first area of the display area is exposed to the outside, and the full view is a state in which the display area is maximally exposed to the outside.

The invention relates to the technical field of environment-friendly meal box production, in particular to an automatic conveying device for environment-friendly meal box production. The automatic conveying equipment comprises a rack, a plurality of conveying rollers rotationally installed on the rack and a driving motor fixed to the side wall of the rack and used for driving the conveying rollers to rotate. A detection probe and a supporting structure are arranged on the rack, and a detection mechanism matched with the detection probe for use is arranged on the supporting structure. The automatic conveying device for environment-friendly meal box production has the advantage of multi-dimensional self-adaptive detection, the inclined plane design of the special-shaped table is matched with balls and guide columns, the pitching angle of the detection probe is automatically adjusted along with rotation, the automatic conveying device adapts to defect detection of arc-shaped meal box edges and special-shaped structures, blind areas caused by a traditional vertical probe are avoided, the detection coverage rate is increased, and the detection efficiency is improved. The circumferential full view data of the meal box can be obtained through single detection, no rotating station needs to be added, and the detection efficiency is further improved.

The invention, which belongs to the technical field of product appearance inspection, discloses an all-dimensional inspection system for the appearance of an automobile pipeline finished product, and the system comprises four core modules, namely a full-view image acquisition work station, an image processing and interpretation engine, a result feedback and execution mechanism and a data management and tracing interface. Wherein the image acquisition work station realizes multi-angle dead-corner-free image acquisition of a pipeline through cooperative work of a multi-axis positioning clamp and a fixed camera array; the image processing engine adopts a white-box algorithm library based on physical imaging characteristics and combines a graphical configuration interface to realize efficient and reliable defect detection; and the data management interface is used for binding and tracing the whole process of the inspection data, and reversely guiding the quality information to the previous process through the closed-loop feedback module. According to the invention, manual inspection is converted into automatic and intelligent inspection, the detection efficiency and accuracy are obviously improved, the labor cost is reduced, and reliable quality guarantee is provided for automobile pipeline manufacturing.

The invention provides an optical design method based on curvature attenuation improved parallel curriculum learning, and belongs to the field of optical design, and the method comprises the steps: obtaining an initial structure of an optical system in a small field of view, and setting optimization variables which comprise the curvature radius of each lens, the air interval between the lenses, the lens center thickness and the lens material; taking the geometric radius or the root mean square radius of the point sequence diagram as an evaluation function, taking the small view field as a starting point, gradually increasing a view field angle according to a view field increment until a target full view field is reached, adjusting an optimization variable by adopting a damped least square method after the view field angle is increased every time, and in the process of adjusting the optimization variable, if ray tracing fails, determining that the target full view field is reached. The curvature radius of each lens is reduced to the set proportion of the current curvature radius of the lens until the evaluation function is smaller than a set threshold value; the invention further provides an optical design system. The problem that when a large number of lenses are optimized while curriculum learning is used, along with the increase of a view field, part of the lenses cannot transmit light smoothly, and optimization cannot be continued is solved.

The invention provides a ship collision early warning method and device and a storage medium, and belongs to the technical field of ship early warning, and the method comprises the steps: importing the dynamic information of a moving target around a ship, obtaining an original ship environment image from a multi-channel video sensor disposed on the periphery of the ship, and obtaining original distance data from a laser radar; performing fusion analysis on each original ship environment image and each original distance data to obtain a target panoramic video and preprocessed distance data; and performing collision analysis on the target panoramic video, the preprocessed distance data and the dynamic information to obtain collision data. According to the invention, the perception, detection and collision avoidance early warning capabilities of the periphery of the ship are greatly improved, full-view coverage is realized, the problem of existence of a monitoring blind area is solved, meanwhile, fusion of multi-source data is realized, the target identification precision is improved, the probability of misjudgment and missing judgment is reduced, and the intelligence of collision early warning is realized.

The Arm-worn Collapsible Nursing Cover and Blanket is disclosed. The claimed invention is an innovative nursing cover that features a flexible pop-up wire frame that is covered in soft fabric that expands and forms a flexible oval shape that easily collapses into a compact circle for storage. The structured form has arm holes on either side and can be worn on the arm or wrist which offer various configurations and functions for use and create an open barrier that provides complete coverage with an unobstructed view of the baby for the mother. It is designed to enhance the breastfeeding experience by providing full coverage with a full view of their infant while nursing. Additionally, the claimed invention has an affixed magnet that can secure an optional blanket that attaches magnetically to the cover. Overall, the claimed invention allows mothers to maintain eye contact with their babies and creates systems and methods for mothers to hold their babies close and snug to foster the close bond that occurs during nursing.

The invention discloses a modular shoe and clothing showing stand capable of self-adapting to a display angle and an adjusting method thereof, and relates to the technical field of shoe and clothing showing stands, the modular shoe and clothing showing stand comprises a showing stand body, two shoe showing mechanisms, a lamp, an adjusting mechanism, a mounting mechanism, a hook and a miniature camera, the bottom in the showing stand body is rotatably connected with the two shoe showing mechanisms, a lamp is fixedly connected to the center of the top in the showing stand body, an adjusting mechanism is fixedly connected to the right end of the top in the showing stand body, a shoe showing mechanism is arranged, shoes are driven to rotate intermittently through a containing disc, the self-adaption showing angle is achieved, customers can see the full view of the shoes without hands, and the customers are guided to stop; meanwhile, by controlling starting and stopping of a first electromagnetic block, replacement of a contact rod is achieved, and it is prevented that adjustment of the display angle is affected by damage of the contact rod; an adjusting mechanism is arranged, a cooling blue filter plate or a warming orange filter plate is moved to the position below the lamp, the color temperature of light rays is changed, and clothes of different colors and different seasons are adapted.

The invention discloses a pair of 3D glasses and a 3D image display system, and relates to the technical field of display, a left eye lens and a right eye lens of the 3D glasses each comprise a half-wavelength liquid crystal box and a first circular polarizer located on the side, close to eyes of a viewer, of the half-wavelength liquid crystal box, and a second circular polarizer located on the side, close to the eyes of the viewer, of the half-wavelength liquid crystal box. After the circularly polarized light emitted by the display screen penetrates through the half-wavelength liquid crystal boxes of the left eyeglass and the right eyeglass, the circularly polarized light with the same or opposite rotation directions is formed because the half-wavelength liquid crystal boxes of the left eyeglass and the right eyeglass can generate pi phase delay or do not generate phase delay; the included angle between the polarization direction of a first linear polarization layer and the slow axis direction of a first quarter-wavelength compensation layer in the first circular polarizers of the left eyeglass and the right eyeglass is set, so that the light quickly and alternately penetrates through the left eyeglass and the right eyeglass and is received by the left eye and the right eye of a viewer, and the 3D display effect is achieved; the pair of 3D glasses has the advantages of simple structure, full view angle and high passing rate.

The invention relates to a multi-view image semantic two-dimensional mapping labeling method based on three-dimensional reconstruction, and the method comprises the steps: carrying out the three-dimensional reconstruction and semantic label labeling of a high-overlapping-degree multi-view input image, and obtaining a labeled three-dimensional model with a semantic label; and then rendering the labeled three-dimensional model under the view angle of each input image through a joint rendering technology, generating a plurality of rendering depth maps and patch index maps of the labeled three-dimensional model, detecting a shielding region by using depth difference, calculating pixel-level visibility confidence of each pixel in the labeled three-dimensional model, and obtaining a plurality of rendering depth maps and patch index maps of the labeled three-dimensional model. And dynamically mapping the semantic tag on the labeled three-dimensional model to a two-dimensional image according to a pixel occlusion region detection result and all the obtained pixel-level visibility confidence coefficients. Therefore, accurate mapping from three-dimensional semantics to two-dimensional annotation is realized, the target is enabled to be annotated as the same semantic information at any view angle, and consistent annotation of full view angle coverage of the target is realized.

A sectional door may include a plurality of door sections including at least a top section and a bottom section, a hinge assembly operably coupling adjacent door sections to each other to enable the adjacent door sections to pivot relative to each other via the hinge assembly, a roller assembly operably coupling the door sections to a rail assembly to enable the sectional door to transition between an open state and a closed state via the roller assembly carrying the sectional door in the rail assembly, and a switchable viewing pane that transitions between a transparent state and an opaque or translucent state responsive to receipt of a transition signal, the switchable viewing pane being disposed at a portion of one of the door sections.

The invention discloses a 3D solder paste height detection instrument and method based on two-view projection, and belongs to the field of multi-view structured light three-dimensional reconstruction. The 3D solder paste height detection device solves the problems that an existing 3D solder paste height detection instrument is complex in structure, long in height detection time and low in detection precision. The method comprises the following steps: firstly, calibrating a center camera and projection light machines on two sides by means of a calibration plate, and establishing an absolute phase compensation amount calculation model based on a calibration result; then projecting fringes to the solder paste to be measured by using the projection light machines on the two sides and collecting fringe patterns, further recovering absolute phases under views of the projection light machines on the two sides and performing distortion removal processing, performing phase fusion on the distortionless absolute phases of the two projection light machines under a view of the reference projection light machine, and recovering a distortionless absolute phase pattern of a full view; and finally, recovering the solder paste height map based on the full-view distortionless absolute phase map, and carrying out median filtering denoising and complementation to obtain a processed solder paste height map. The method can be applied to 3D solder paste height detection.

The invention belongs to the field of image reconstruction, and particularly discloses a multi-stereoscopic view volume rendering method and system based on 3D Gaussian sputtering. The invention provides a brand new self-adaptive control mode, specifically, Gaussian balls in a 3D Gaussian voxel model are classified according to scene features, voxel division operation is performed on each high-detail demand area, voxel merging operation is performed on each low-detail demand area, and voxel dynamic loading is performed. According to the method, the extracted scene features serve as the basis of region classification, high / low detail demand regions under the full view angle can be accurately recognized, the voxel adjustment strategy is strongly bound with the region features, invalid voxels are filtered out in combination with a dynamic loading mechanism of view cone removal, and therefore, the accuracy of region classification is improved. Compared with a traditional algorithm, the method has the advantages that the frame rate of complex scene rendering is increased by 20%-40%, the sharpness of object edges is increased by more than 30%, the occupation of a GPU video memory is reduced by 30%-50%, and the multi-scene rendering requirement is met.

This invention discloses a control method and system for incomplete multi-view data, belonging to the field of data recovery control technology. The invention extracts monitoring data features from each view and evaluates their quality; views below a threshold are marked as incomplete. Initial recovery results are then obtained by migrating samples from similar neighborhoods of other views. All features are mapped to a unified latent space to obtain fused semantic representation features. By comprehensively considering multiple factors such as missing data labels, data quality, spatiotemporal features, and semantic consistency, the fusion impact of each view is quantified. Then, based on the relationship between the quantified value and a set threshold, the fusion weights of each view are adaptively calculated. Finally, a global fusion representation feature is generated based on this weighted average, thereby reconstructing and recovering the incomplete view. Anomaly detection is performed, and alarm information is output, improving the accuracy of incomplete view data recovery results and solving the problem of reduced accuracy in existing technologies.

The invention belongs to the technical field of low-altitude unmanned aerial vehicle tracking, and particularly relates to an intelligent photoelectric automatic tracking recognition device and system.The intelligent photoelectric automatic tracking recognition device comprises a supporting frame, a central high-resolution imaging camera is installed in the middle of the supporting frame, and a plurality of ultra-wide-view-field cameras are installed on the side of the central high-resolution imaging camera; the central high-resolution imaging camera and the ultra-wide field-of-view camera are both internally provided with visible light and infrared photoelectric imaging systems, and the systems are installed on a multi-dimensional free adjustment structure. The device adopts a composite imaging architecture combining a central high-resolution imaging camera and an ultra-wide field-of-view camera to form an efficient working mode of'wide-area search tracking + accurate recognition '. The single view field of the ultra-wide view field camera exceeds 90 degrees, the combined internally tangent full view field angle reaches 180 degrees, the center view fields are overlapped, a large-range scene can be quickly captured, and preliminary searching and locking of a target are achieved.

The invention discloses a reconstruction method and system for full-field-of-view hyperspectral reflectivity. The method comprises the following steps of: firstly, acquiring radiance data of a target scene through hyperspectral imaging, and imaging diffuse reflection standard plates arranged at a plurality of positions under the same illumination and observation geometric conditions to obtain corresponding radiance data of the standard plates; secondly, geometric registration and multi-view-field splicing are carried out on the target scene and the standard board image, and reference radiance distribution covering the range of the target scene is constructed; on the basis, a continuous reference radiance field covering a full view field is reconstructed by utilizing a band-by-band surface fitting technology, and finally, a conversion function is established by combining with the nominal reflectivity of a standard plate, so that pixel-by-pixel reflectivity calculation and output are realized. The system comprises a hyperspectral imaging unit, an illumination and geometric control unit, a standard board laying unit and a data processing unit. The method is suitable for hyperspectral reflectivity consistency reconstruction of a large-scale target scene.

The invention provides a chip solder ball logic information acquisition method and system, and the method comprises the steps: monitoring and capturing a mouse click event and screen pixel coordinates of a user in a video display region, the video display region displaying the full view of a chip, and the mouse click event refers to clicking the position of a target solder ball on the chip; based on the affine transformation matrix M, converting the screen pixel coordinates of the target solder ball into design physical coordinates; according to the design physical coordinates of the target solder ball, retrieval is conducted in a chip design information database, logic information of the target solder ball is obtained, and the logic information of the target solder ball comprises a pin name corresponding to the target solder ball and network relation information corresponding to the target solder ball. According to the method, the association from the screen pixel coordinates of the solder ball to all logic information is automatically completed through simple interaction, that is, when an operator sees a suspicious solder ball in a microscope picture, the complete logic identity of the solder ball and the network relation are automatically revealed in the view of the operator through a simple interaction action (such as clicking).

The invention discloses a rigidity test device, and relates to the technical field of test devices. The rigidity testing device comprises a rack mechanism, a loading mechanism, a measuring mechanism and a scanning mechanism, the rack mechanism comprises a mounting table and a fixing frame, the fixing frame is arranged on the mounting table and suitable for mounting a to-be-tested piece, the loading mechanism is suitable for applying a load to the to-be-tested piece, the measuring mechanism comprises at least one range finder, the range finder is arranged on the rack mechanism, and the scanning mechanism is arranged on the rack mechanism. The scanning end of the scanning mechanism faces the rack mechanism. Therefore, through the measuring mechanism and the scanning mechanism, the deformation amount of the to-be-tested piece can be accurately measured and the full view of the to-be-tested piece (such as a vehicle door) can be generated so as to obtain the test result of the rigidity test, the deformation condition of the to-be-tested piece can be recorded in the whole course, and the state of the to-be-tested piece can be observed at the first time. The condition and existing technical problems of the test piece to be tested can be accurately and comprehensively known, the optimization frequency and the total test frequency can be reduced, the research and development time can be shortened, and the research and development cost can be saved.

1. The name of the design product: smart power distribution graphical user interface of electronic equipment. 2. The use of the design product: for an electronic device. 3. The design points of the design product: in the graphical user interface content. 4. The picture or photo that best indicates the design points: front view. 5. The use of the graphical user interface: for smart power distribution. 6. The change state of the graphical user interface: in the main view, click on the label on the building model to display the pop-up information of the building, as shown in the change state diagram 1; in the change state diagram 1, double-click on other building models to retract the information pop-up window and enlarge the double-clicked building to enter the change state diagram 2; in the change state diagram 2, click on the marker point in the building model to switch to the change state diagram 3; in the change state diagram 3, continue to click on the marker point in the building model to switch to the change state diagram 4; in the change state diagram 4, double-click on the background area in the interface to display the full view of the modeling, as shown in the change state diagram 5; in the change state diagram 5, drag the modeling in the interface to rotate the modeling visual to switch to the change state diagram 6; in the change state diagram 6, double-click on the teaching building model to switch to the change state diagram 7; in the change state diagram 7, click on the marker point in the building model to switch to the change state diagram 8.

A sectional door may include a plurality of door sections including at least a top section and a bottom section, a hinge assembly operably coupling adjacent door sections to each other to enable the adjacent door sections to pivot relative to each other via the hinge assembly, a roller assembly operably coupling the door sections to a rail assembly to enable the sectional door to transition between an open state and a closed state via the roller assembly carrying the sectional door in the rail assembly, and a switchable viewing pane that transitions between a transparent state and an opaque or translucent state responsive to receipt of a transition signal, the switchable viewing pane being disposed at a portion of one of the door sections.

The utility model relates to the technical field of optics, in particular to a long-wave infrared uncooled 180-degree field angle fisheye lens, which comprises a first lens. A second lens is arranged on one side of the first lens, a third lens is arranged on one side of the second lens, and a fourth lens is arranged on one side of the third lens. According to the utility model, by using the semi-symmetric optical structure, good imaging performance in a 180-degree full view field is realized, a good application effect is achieved, and the problems that the view field angle of a lens of a device in the prior art is small, and 360-degree peripheral patterns can be formed only by splicing a plurality of cameras are solved. Therefore, the problems that the cost is high, the installation and debugging are time-consuming, and the later image algorithm is more complicated are caused. The objective of the utility model is to solve the problems in the prior art that a lens covering a 180-degree field of view is urgently needed, the 360-degree field of view can be realized by splicing only two cameras, at the same time, the resolution of an infrared camera is upgraded to 1280 * 1024 pixels, the image surface size is larger, and the realization difficulty is further improved.

1. Name of the product of this design: Graphical user interface for displaying data lineage in electronic equipment. 2. Purpose of this design product: an electronic device. 3. The key design point of this design product lies in the graphical user interface. 4. The picture or photo that best illustrates the key points of the design: Main view of Design 1. 5. Designate Design 1 as the base design. 6. Purpose of Graphical User Interface: The graphical user interface of an electronic device is used for displaying, viewing and operating data lineage. The graphical user interface can be interacted with by the user through click input operations on the graphical user interface. 7. Other situations that require explanation are explained in the reference diagrams: The data lineage in the thumbnail view is displayed in the main view of Design 1. When the user clicks or touches the rectangular node in the data lineage, the interface jumps to the Design 1 change state diagram to display the relevant specific data of the rectangular node; The data lineage in the thumbnail view is displayed in the main view of Design 2. When the user clicks or touches the circular plus node in the data lineage, the interface jumps from the Design 2 main view to the Design 2 change state diagram to display the downstream rectangular node corresponding to the circular plus node; The data lineage in the thumbnail view is displayed in the main view of Design 3. When the user clicks the "Full View" button in the main view of Design 3, the interface jumps from the Design 3 main view to the Design 3 change state diagram to display the data lineage in the full view.

The utility model belongs to the technical field of automobile part processing, and especially relates to a high-precision automobile crossbeam detection device comprising a pedestal, the upper surface of the pedestal is provided with a bearing groove, two sides of two ends of the pedestal are rotatably connected with a hinge shaft, and the outer surface of the hinge shaft is fixedly provided with a semi-ring gear ring. The two semi-ring gear rings are fixedly connected through a limiting shaft, a lead shaft is rotationally connected between the two semi-ring gear rings, a motor is fixedly installed at one end of the lead shaft, and the motor is fixedly connected with one semi-ring gear ring. According to the high-precision automobile cross beam detection device, through rotation of a semi-ring gear ring, a limiting block can photograph a cross beam from the left side and the right side of the upper portion, errors caused by inclined photographing are reduced, and meanwhile a lead shaft is arranged to drive an image collector to move horizontally; therefore, short-distance continuous photographing can be performed on the cross beam, combined processing and comparison with stored data are performed, and the detection precision can be improved compared with photographing away from the cross beam in order to photograph the full view of the cross beam.

The utility model discloses a full-view intelligent heat preservation cabinet capable of being pulled forwards and opened backwards, and relates to the technical field of intelligent heat preservation cabinets. The device comprises a box body, the left side of the box body is fixedly connected with a baffle, the front face of the baffle is fixedly connected with a temperature control switch, the right side of the box body is provided with a first visual window, the top of the box body is fixedly connected with a top cover, a storage plate is arranged in the box body, and the front face of the storage plate is fixedly connected with a first handle. A supporting plate is arranged above the storage plate, and the left side of the box body is rotationally connected with a rotating door through a rotating shaft. The limiting plate is arranged, specifically, the first handle is slightly pushed, so that the storage plate drives the supporting plate to move inwards, due to the fact that the storage plate is obliquely arranged, the rotating door can drive the limiting plate to apply pressure to the supporting plate, the storage plate can be automatically closed under the action of the supporting plate, the rotating door is more convenient to close through the device, and the device is more convenient to use. Meanwhile, the workload of catering workers is reduced, and the working efficiency is improved.

The invention discloses a quartz glass deposition morphology control method, device and system, and relates to the technical field of glass synthesis, the method comprises the following steps: obtaining morphology images and process parameters of a blank in a quartz glass deposition furnace at a plurality of time points; selecting a deposition surface area and a side surface area of the blank from the morphology image; the deposition surface area is subjected to fitting processing to form a deposition surface fitting curve, a first corresponding relation is established, the side face area is subjected to fitting processing to form a side face fitting curve, and a second corresponding relation is established; according to the obtained camera parameters, the actual profile curve, the longitudinal growth speed and the curvature of the blank are calculated; performing full-view reconstruction according to the deposition surface fitting curve and the side surface fitting curve to obtain a full-view contour line of the blank; and based on the growth speed, the curvature, the first corresponding relation, the second corresponding relation and the full view contour line, controlling and adjusting process parameters so as to reach a consistency evaluation standard. According to the scheme, the control precision of the shape of the blank and the preparation efficiency of the quartz glass are improved.

1. Name of the product in this design: Wired earphone head. 2. Purpose of this design: This design is used for the audio output end of in-ear / over-ear headphones, fitting snugly into the ear canal to achieve sound conduction and secure wearing. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. Other matters requiring explanation: The product in this application is a right earphone head. The left earphone head is symmetrical in shape to the product in this application. The only difference is that the pattern on the left earphone head is L and the pattern on the right earphone head is R. Therefore, the full view of the left earphone head is omitted.

The patient trousers comprise a trousers body, two observation openings are formed in the front side of the trousers body, a cloth blocking piece is fixedly connected to the observation openings, a connecting assembly is connected to the front side of the cloth blocking piece, and two trouser legs are detachably connected to the bottom of the trousers body. The cloth blocking pieces are arranged on the front side and the crotch of the trousers, the whole view of the wound can be observed only by unzipping the connecting zipper, so that the privacy of a patient is protected, the probability of wound bleeding caused by movement of limbs of the patient can be reduced, the situation of the wound can be conveniently, rapidly and efficiently observed for a doctor and the patient, and the patient can conveniently, rapidly and efficiently observe the situation of the wound. And accidents are avoided.

The application relates to the technical field of building security, in particular to a distributed video analysis method and system of a building security camera, event detection is carried out on local video streams by each camera, after a target event is detected by any camera, an event descriptor is generated based on the target event, a camera detecting the target event is determined as a target camera; according to the event descriptor, broadcast matching is carried out in a camera network, other cameras capable of detecting the target event are acquired, the target camera and the other cameras are combined, and a cooperative network for the target event is formed; according to track points of the target event on each network node of the cooperative network, distributed consensus processing is carried out on the track points, and a continuous track of the target event is generated; after the target event ends, an event summary is generated based on the continuous track, the event summary is reported to a management platform, and a building global security view is updated, so that the problem that real-time, high-reliable cross-camera continuous track synthesis cannot be realized is solved.

The present application relates to the field of imaging lens, and more particularly to a video imaging lens, sequentially comprising a first lens, a second lens, a third lens, a fourth lens and a fifth lens along an optical axis from an object side to an image side; each of the first lens to the fifth lens comprises an object side surface facing the object side and passing imaging light and an image side surface facing the image side and passing imaging light; the first lens has negative refractive power; the second lens has positive refractive power; the third lens has positive refractive power; the fourth lens has negative refractive power; the fifth lens has positive refractive power; and meets the following conditional expressions: TTL≤14.3mm, TTL / F<6.66, wherein the TTL is the total optical length of the lens, and the F is the light aperture of the lens; the video imaging lens has a full view angle MTF greater than 0.32 when the spatial frequency reaches 112 lp / mm, and has a good imaging effect.