583results about How to "Keep clear" patented technology

Complex shape steerable tissue visualization and manipulation catheters and their methods of use of disclosed herein. The deployment catheter may be articulated utilizing various steering mechanisms to adjust a position of a visualization hood or membrane through which underlying tissue may be visualized.

The present invention relates to a defogging and defrosting devices for the protective lens of camera, which includes a heater that is coupled to a control circuit panel, a thermal gasket that is in contact contacting with the heater, receives the heat from the heater and transmits the heat to the glass or mirror object which contacts with in order to avoid and prevent the loss of lucidity of the glass or mirror object due to humidity. The defogging and defrosting device is installed on the body of the camera instead of on the protective lens in order to avoid shading the camera view and to facilitate the removal of protective lens while adjusting the focus of the camera. It also facilitates the replacement of the protective lens of the camera.

An automatic snapshot system for highway traffic offence comprises a front snapshot unit, a network transmission unit, a detection unit and a management server, wherein the front snapshot unit obtains real-time video in a detected scene, the network transmission unit transmits the real-time video to the detection unit; the detection unit after obtaining the video uses object segmentation and trace tracking and analysis to find vehicles having abnormal behaviors such as reversing, going in a direction not allowed by traffic regulations and illegal parking, providing the position of the target vehicle, controlling a holder to rotate so that the license plate of the target vehicle is in the image capture center of the front snapshot unit, controlling the front snapshot unit to zoom a lens and adjust the size the target in the image to facilitate license plate identification and analysis; and after the license plate is determined, the front snapshot unit controlling an electric zoom lens to restore to a wide angle monitoring mode and snapshot distant view, close view and license plates, and uploading the snapshot results to the management server unit.

Flow reduction hood systems are described which facilitate the visualization of tissue regions through a clear fluid. Such a system may include an imaging hood having one or more layers covering the distal opening and defines one or more apertures which control the infusion and controlled retention of the clearing fluid into the hood. In this manner, the amount of clearing fluid may be limited and the clarity of the imaging of the underlying tissue through the fluid within the hood may be maintained for relatively longer periods of time by inhibiting, delaying, or preventing the infusion of surrounding blood into the viewing field. The aperture size may be controlled to decrease or increase through selective inflation of the membrane or other mechanisms.

The invention discloses an automatic snapshot device and method for illegal parking. The automatic snapshot device comprises a front-end snapshot unit, a transmission network and a management server. The front-end snapshot unit comprises an electric zoom lens, an intelligent camera and a tripod head. The electric zoom lens is arranged at the front end of the intelligent camera and connected with the intelligent camera. The intelligent camera is arranged on the tripod head and further connected with the management server through the transmission network. The automatic snapshot method comprises the steps that the front-end snapshot unit monitors the whole monitoring area through a wide-angle lens and tracks the motion trail of all vehicles within the monitoring area; when a parking event is found through the trail tracking mode, the barycenter and area of the parking vehicle are determined; the rotation angle and pitch angle of the tripod head are determined through geometric operations; the tripod head is controlled so that the target can be located in the center of an image; the size, in the image, of the target is adjusted through lens zoom control so as to be suitable for image analysis, namely license number recognition; after the license number recognition is completed, the intelligent camera controls the electric zoom lens to restore to a wide-angle monitoring mode.

The invention relates to the technical field of aircraft equipment, in particular to a skyborne cradle head device used for collecting the information in the air and the applications thereof, which includes a cradle head hanging rack with a shock absorber, an external ring, an internal ring and a servo device. The cradle head hanging rack and the external ring are connected by a cradle head pedestal, the external ring and the internal ring are connected by a track, and the servo device is arranged on the cradle head pedestal. Compared with the prior art, the skyborne cradle head device can carry high-precision image collection equipment to make three-dimensional motion and take picture from the air, automatically collect various data information and realize the automatic control; also the adoption of the shock absorber can guarantee the high resolution of the image, which solves the key technical problem of practicability of the aircraft during the application of the low-level remote sensing technique.

A method of accurately fabricating a non-human donor corneal tissue for implantation into a recipient human cornea, the method comprising the steps of: removing corneal tissue from a donor with a femtosecond laser; placing the corneal tissue in a fixative solution for a selected time interval to cross-link the collagen fibrils in the tissue and prevent swelling of the corneal tissue; and shaping the tissue to provide a conical inlay of a selected shape and thickness having one or more radial extensions. The method is such that the corneal inlay may be attached to the peripheral corneal and/or the sclera. The method is such that the corneal inlay may be stored for a period of up to two years prior to attachment.

The invention relates to a branch artificial blood vessel bracket applied in surgery, which is provided with a terylene fabric blood vessel and a large bracket lined with a harder memory alloy wire; an artificial blood vessel of 1cm long without alloy wires is arranged at the near end and taken as a sewing ring; the branch artificial blood vessel bracket is characterized in that the near end of the large bracket is sewed by a small bracket; and the small bracket consists of the terylene fabric blood vessel and the lined soft memory alloy wire. The branch artificial blood vessel bracket creatively adds a branch bracket used for supporting the true lumen of left subclavian artery so as to keep smooth and complete left subclavian artery and the distal end of thoracic descending aorta, overcome the defects of the current surgery and avoid the coincidence of the left subclavian artery; and the distal end coincident hole is arranged between the innominate artery and the left common carotid artery, thus solving the most difficult point of the technique.

The invention relates to a detection method for the quality of an electric power pipe gallery reinforcing steel bar mesh based on machine vision and a detection device. The detection method comprises the steps of reinforcing steel bar quantity detection, reinforcing steel bar spacing detection and reinforcing steel bar diameter detection, and is characterized in that reinforcing steel bar quantity detection adopts technologies such as image stitching and Hough transform straight line detection to count the quantity of reinforcing steel bars within a meter marker and judges whether the reinforcing steel bars are qualified or not; reinforcing steel bar spacing detection adopts an edge extraction technology, fits each reinforcing steel bar by using a least square method, calculates the distance between adjacent reinforcing steel bars in a rectangular detection area and judges whether the reinforcing steel bar spacing of the section is qualified or not; and reinforcing steel bar diameter detection is similar to reinforcing steel bar spacing detection, the difference lies in that double edges of each reinforcing steel bar are fit by using the least square method in the rectangular detection area, and the diameter of each reinforcing steel bar is calculated so as to judge whether the reinforcing steel bar diameter of the section is qualified or not. The detection device comprises a scalable triangular frame, a double-pipe guide rail, a stepper motor, a level gauge and a cradle head loaded with an ultra high definition camera. According to the invention, information of the reinforcing steel bar mesh of a project under construction can be collected in advance before reinforced concrete is poured.

The invention relates to a method and device for triggering a camera to perform automatic focusing. The method includes the following steps that: the values of the focusing definition and the brightness values of each frame of image in a plurality of continuous frames of images are obtained; whether a scene changes is judged according to the values of the focusing definition and the brightness values; the change rate of the values of the focusing definition is obtained according to the values of the focusing definition of each frame of image in the plurality of continuous frames of images, and whether the change rate of the values of the focusing definition is larger than a change rate threshold value is judged, if the change rate of the values of the focusing definition is larger than the change rate threshold value, it is judged that an image is moving; whether the direction of acceleration changes is judged; and when the scene changes, the image moves, and the direction of the acceleration changes, the camera is triggered to perform automatic focusing. According to the method and device for triggering the camera to perform automatic focusing, the camera is controlled to perform automatic focusing through a plurality of constraint conditions, and the frequency of the automatic focusing of the camera can be controlled, and power consumption can be decreased, and automatic focusing can be performed when conditions are satisfied, and the clarity of the image can be kept as much as possible.

The invention relates to a realization method for the real-time transmission of satellite lateral motion image, which is characterized in that: a complete satellite adopts four control antennae for transceiver, so that the control antenna beam is in omnidirectional coverage after the satellite being moved laterally; the complete satellite is controlled to move laterally, continuously and rapidly in a large angle by a momentum wheel; the satellite attitude is measured by using a whirligig in the process of lateral motion; and the satellite crab angle can be calculated in real time, simultaneously, the drift angle can be controlled, so the satellite lateral motion is set to a swinging angle scope stably. In the phase of satellite bias flight, a star sensor and the whirligig are adopted for united attitude determination to the satellite; the camera integral time is calculated in real time by a GPS receiver according to the satellite orbit and latitude; the camera will generate exposure and imaging according to the integral time; the imaging data after the lateral motion can be transmitted to the ground by the satellite through an array data transmission antenna. The realization method for the real-time transmission of satellite lateral motion image has the advantages that: the large-angle lateral motion of the satellite can be realized; thereby the camera development difficulty because of camera wabble or swing mirror addition can be lowered; the visual range of the satellite can be expanded; and the revisit cycle of the satellite can be increased.

The invention discloses a rapid stamping device for financial accounting, and relates to the technical field of financial appliances. The rapid stamping device comprises a supporting table, wherein ahanging bracket is fixed on the supporting table, a horizontal plate is horizontally fixed on the hanging bracket, a driving disc is rotationally mounted on the hanging bracket, a seal base is in transmission connection with the driving disc, the seal base is connected with a stamping mechanism, the supporting table is rotationally provided with a feeding mechanism which is in transmission connection with the driving disc, a containing groove is formed in the supporting table, and a pressing mechanism matched with the feeding mechanism is arranged in the containing groove. According to the rapid stamping device, the automatic feeding effect of financial files can be achieved through the feeding mechanism, the financial files can be automatically stamped after the financial files are fed through the arranged stamping mechanism, so that the financial stamping efficiency is greatly improved, hot air sprayed out by an air injection disc can be used for drying the stamped seal, the seal quality is guaranteed, ink can be injected into the seal base through a ink tube, so that sufficient printing ink is guaranteed during the stamping, and the clearness of the seal is ensured.

The invention relates to the field of metal cutting additives, in particular to a grinding fluid for metal processing and a preparation method thereof. According to a technical scheme adopted by the invention, the grinding fluid for metal processing is composed of the following components by weight percentage: 5-15% of a PH value stabilizer, 3-5% of a surfactant, 5-10% of a water-borne lubricant,5-15% of an antirust agent, 4-8% of a coupling agent, 0.2-1% of a bactericide, 0.1-1% of a defoamer, 1-3% of a corrosion inhibitor, 0.2-0.4% of a settling agent, and the balance deionized water. The invention has the advantages that: the grinding fluid for metal processing adopts triethanolamine oleate as the surfactant, has good permeability and wettability, is conducive to entering a high temperature and high pressure working face, and at the same time is also a lubricant, the molecule has strong polar groups, can achieve strong adsorption with the metal surface, and chemical reaction can becarried out to form a firm physical absorption film and chemical reaction film with certain carrying capacity.

The invention discloses a manufacture method of a colorful flexible printing corrugated box, comprising six steps such as corrugated bonding, drying, throwing and cutting, preparing ink, forme and flexible printing. A corrugated cardboard with special standard is taken as a printing material, thus leading no settlement phenomenon between the corrugated peak and corrugated valley of the corrugated cardboard to occur and ensuring clear printed patterns. By adopting no-shaft transmission flexible printing, overprinting precision of each color group can be independently adjusted, thus improving the overprinting precision of the printed products, and greatly improving the printing quality. By adopting knurled rolls in grid shape and ceramic material spayed on the surface of the knurled rolls, the surface performance of the knurled rolls is improved, the flexible printing quality is improved, the service life of the knurled rolls is prolonged, and the printing cost is saved. The content of the connecting material in ink is increased and the consistency of dye is increased, thus reaching required ink film thickness under low ink transmission quantity, and reaching the requirement of stable and full colors, high vividness of the printed product and good glossiness.

The invention provides a Taihu lake ecological dam revetment construction method. Gabion net ecological gabions are adopted, are manually filled with stone blocks, and are ranged and accumulated in positions with a distance being 1 to 5m away from a lake bank, in addition, double-row anchoring pile anchoring is implemented for building an ecological dam, the surface of the ecological dam is 30 to 60cm higher than the water level, a position between the ecological dam and the original lake bank is directly filled with river sediment, local native grass tree plants for beautifying the environment are planted on the ecological dam and the filled river sediment zone for forming a landscape wall, the peripheral ecological environment and the water quality condition of a revetment can be improved, the ecological revetment with the landscape function is achieved, so that unique Taihu lake landscape can be formed. The Taihu lake ecological dam revetment manufactured by the method has various advantages of good ecological performance, water permeability, flexibility, impact resistance, wave resistance and the like.

The invention relates to a flash lamp control method and device and a terminal. The method comprises that position information of a shot object is detected, and based on the position information, a flash lamp parameter of the shot object is determined. According to the invention, the flash lamp is controlled to provide different flash lamp parameters according to different positions of the shot object, and clear imaging can be realized.

The invention provides an image display control method and a terminal, and relates to the technical field of terminals. The image display control method is applied to a terminal and comprises: receiving a first input of a user to a first image, wherein the first input is used for zooming the first image; in response to the first input, updating the first image into a second image for display, wherein the first image is an image acquired by a camera under the condition of a first focal length, the second image is an image acquired by the camera under the condition of a second focal length, andthe first focal length is not equal to the second focal length. According to the scheme, when a user zooms the image, the image can be replaced by another image with a clearer visual angle, and details can be ensured to be clear when the image is zoomed and viewed.

The invention discloses a video compression method. The method includes: acquiring a video image; carrying out skin color analysis on each frame image in video images to obtain a face image and a background image in each frame image; carrying out Gaussian blurring on the background image to obtain a blurred background image; and carrying out compression on the blurred background image. The invention also discloses a video compression device and a computer-readable storage medium. The method can achieve effects that in a video chat process, clarity of face information in a video process can beguaranteed, and video bandwidth can also be reduced.

A circulating fluidized bed boiler and an adjustment method for abnormal material return, comprising a furnace, a separator, a material return standpipe, a material return valve and a tail flue to form a circulating fluidized bed boiler. The furnace, the separator, the material return standpipe and the material return valve form an external circulation loop. The adjustment method for the abnormal return of circulating fluidized bed boiler: lower the height of the rising section of the return valve by 300mm, add a return sealing air duct at the bottom of the separator and the upper part of the return standpipe, set up a purge device in the horizontal flue, The ash discharge pipe is installed in the hole on the air distribution plate of the return valve, and the ash discharge pipe is installed at the lowest part of the return air chamber. After cleaning out the debris of the return valve, start it again. Stop the furnace to check the condition of the wind cap and repair the wind cap in good condition. The above measures can solve the problem of abnormal material return caused by different reasons. The invention is simple in operation, easy to popularize, easy to carry out equipment transformation and low in cost, and is widely applicable to large-scale circulating fluidized bed boilers.

The invention discloses a motion information-based method for a monocular camera to acquire the depth information. The method comprises the following steps of taking at least two pictures different in sharpness by means of a camera during the movement process of the camera, wherein the pictures are the same in illumination condition; secondly, conducting the blocking treatment on the obtained pictures and selecting small blocks of images that are required for computation; conducting the filtering treatment on each block of clear pictures according to different fuzzy matrixes, and finding out a fuzzy matrix highest in level of similarity through matching fuzzy images; obtaining the depth information of the block based on the camera imaging principle by utilizing the above fuzzy matrix highest in level of similarity; repeating the above steps to obtain the depth information of the entire scene. By adopting the above method, the front and rear distances of an object in a picture can be calculated based on a simple algorithm. The method is applicable to both the short-distance measurement and the long-distance measurement.

The invention discloses a monitoring camera with a self-cleaning function. The device comprises a fixed seat, Rotating disc and protective cover, The device comprises a camera, a brush holder and a cleaning brush, the output end of the rotating motor is connected with the rotating shaft; a damping cavity is formed between the rotating shaft and the fixed seat; a plurality of damping units are circumferentially arranged in the damping cavity; one end of the damping unit is connected with the rotating shaft; the other end of the damping unit is connected with a fixing seat; one end of the rotating shaft away from the rotating motor is fixedly connected with a protective cover; A camera is arranged in the protective cover, a rotating disc for the protective cover to rotate is arranged betweenthe protective cover and the fixing base, a brush support is fixedly installed at the end, close to the protective cover, of the fixing base, a cleaning brush is arranged on the side, close to the protective cover, of the brush support, the brush support and the cleaning brush are arc and matched with the protective cover, and the brush support and the cleaning brush are arranged on the side, According to the monitoring camera with the self-cleaning function, the cleaning brush can effectively clean dust on the surface of the protective cover, and it is guaranteed that camera shooting is clear.

The invention relates to a movable automotive vehicle chassis viewing device, which comprises a flat body viewing device outer casing, a viewing device walking driver, a camera lens and an illuminating lamp group. The invention can utilize the wireless remote control or the wired control to enter into the underside of the chassis of any vehicle, a wide angle camera lens is arranged at the top surface of the outer casing, an LED lamp used for the illumination is arranged at the top surface to illuminate the chassis of the vehicle, the chassis image of the vehicle is recorded through the camera lens, and is transmitted by the wireless or wired way, the image on a display is directly observed near the viewing device, or the image of the vehicle which is viewed is observed on a microcomputer in a control room. The viewing device of the invention can conveniently and quickly enter into the space under the chassis of the vehicle, and the viewing device is provided with enough illuminance to ensure the visibility of the recorded image; the wide angle camera lens ensures the viewing efficiency to be high, and the content is reliable.

The invention relates to a PCB detection device, in particular to a PCB clamping mechanism during detection. The PCB clamping mechanism is provided with a fixed seat; the fixed seat is arranged on a guide rail of an engine base; one side of the fixed seat is provided with a screw rod for driving the fixed seat to move forward and backward on the guide rail; the PCB clamping mechanism is arranged on the fixed seat; a front retainer is fixedly connected with the fixed seat and a back retainer is slidably connected with the fixed seat; the front retainer is in pin connection with at least one fixture; the fixture consists of a chuck arranged above the front retainer and a top block arranged below the front retainer; a spring is arranged below the front retainer and is pressed against the top block; and a post rod mechanism is pressed against the top block when the fixed seat is moved to the top front end along the guide rail. The PCB detection device is simple in structure, and can conveniently and quickly perform fixture on a PCB, and improves the working efficiency; meanwhile, the PCB fixture has comparatively stable fixture on the PCB, and ensures the distinct capture images of a camera on the PCB so as to improve the accuracy of PCB detection.

A curable composition is described, including a gel material derived from the curable composition, and medical articles including such material, wherein the transparent gel material includes a polymerized monofunctional poly(alkylene oxide) macromonomer component and a surface modified nanoparticle component.