Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

184results about How to "Improve contour" patented technology

Minimally invasive intravascular treatment device

InactiveCN101420913AReduce retraction resistanceThe delivery method worksStentsBalloon catheterBalloon catheterAnimal body
A device for treating a target area of a vessel wall of a vessel within a human or animal body, the device comprising: an expandable portion for radially expanding the device from a contracted configuration allowing travel within the vessel to the target area to an expanded configuration allowing treatment of the target area; a protective sheath stretch-fitted over the expandable portion to exert a compressive force on the expandable portion for radially contracting the device from its expanded configuration to its contracted configuration, and for exerting a compressive force on the expandable portion in its contracted configuration; and at least two spaced apart treatment implements extending radially outwardly from the expandable portion, wherein in the device's contracted configuration the implements are shielded within the protective sheath, and in its expanded configuration the thickness of the sheath decreases to expose the implements for contact with the target area of the vessel wall. A protective sheath for fitting to a device for treating a target area of a vessel wall of a vessel within a human or animal body, a balloon catheter sheath loading device and method for loading a tubular sheath onto a balloon catheter, and a method of treating one or more target areas of a vessel wall within a human or animal body are also disclosed.
Owner:THE NAT UNIV OF IRELAND GALWAY

Fog region driving safety intelligent guiding system and method

ActiveCN103500519AIncrease blinking frequencyFull warningAnti-collision systemsTraffic signalsVisibilityRear-end collision
The invention relates to a fog region driving safety intelligent guiding system and a fog region driving safety intelligent guiding method. The system comprises at least one visibility detector, a plurality of active light emitting induction facilities and a controller; the active light emitting induction facilities are arranged at certain intervals along a road and emit light in different modes under the control of the controller; each visibility detector is used for sending detected visibility information to the controller; and the controller is used for controlling the active light emitting induction facilities to work in the specific modes on the basis of the visibility information. The method comprises the following steps: detecting visibility of a road region; and when the visibility is less than a first threshold value, but more than a second threshold value, starting a first mode to enable the active light emitting induction facilities to flicker under a first frequency, and when the visibility is less than the second threshold value, but more than a third threshold value, starting a second mode to enable the active light emitting induction facilities to flicker under a second frequency. According to the invention, vehicles can be reliably guided to safely run under the condition of low visibility, warning of safety vehicle intervals is provided in real time and serial rear-end collision is effectively prevented.
Owner:北京中交华安科技有限公司 +1

Steel pipe clamping tool

The invention discloses a steel pipe clamping tool which comprises a support and a hydraulic oil cylinder. One end of the hydraulic oil cylinder is connected to the lower portion of the support, two connecting rods are hinged to the other end of the hydraulic oil cylinder, and clamping rods are separately hinged to the other ends of the two connecting rods. One ends of the clamping rods are hinged to the support, and the other ends of the clamping rods are provided with clamping claws. A lower connecting rod is arranged on the support and movably connected with an upper connecting rod through a joint bearing. The top end of the upper connecting rod is provided with a rib plate. A plurality of telescopic oil cylinders are connected between the rib plate and the support. According to the steel pipe clamping tool, by arranging the hydraulic oil cylinder for driving and arranging the connecting rods for transmission, the clamping rods are driven for clamping, and the clamping force is strong; by arranging the arc clamping claws for grabbing a steel pipe, the clamping claws are good in adaptability to the steel pipe in outline and shape and high in closing precision, and the steel pipe is prevented from falling off; and by arranging the telescopic oil cylinders for being matched with the joint bearing in movement, multi-angle grabbing and stacking of a manipulator on the steel pipe are achieved, and accuracy is high.
Owner:安徽清水岩生态科技有限公司

Real-time vision target detection method robust to ambient light change

The invention provides a real-time vision target detection method robust to an ambient light change. The method comprises a step of acquiring a historical image sequence in a video stream, a step of initializing a pixel-level mixed multivariate Gaussian background model, a step of designing a background modeling method of a spherical K-means expectation maximization algorithm and updating parameters of the background model in an online way to adapt to a change of an environment once a new image frame is obtained, a foreground target detection step of using a statistical framework determined bya color space area and calculating a latest image frame and the background model in the statistical framework to obtain a pixel area where a foreground target is located, and a step of weakening detection noise through an iterative Bayesian decision step, wherein a target contour can be enhanced in the process. According to the method, the foreground target position and contour in a visual fieldcan be accurately detected in real time in the visual field, a correct detection rate is high, a false alarm rate is low, the disturbance of a detection result caused by the ambient light change can be resisted, and the method is particularly suitable for an intelligent video surveillance system.
Owner:DONGHUA UNIV

Multi-level optimization design method of GIS/GIL basin-type insulator with high electrical resistance

The invention discloses a multi-level optimization design method of a GIS / GIL basin-type insulator with high electrical resistance. The method comprises a preliminary design stage and a detailed design stage. In the preliminary design stage, the basic shape of the GIS / GIL basin-type insulator is constructed by adopting contour shape optimization, the shapes of a convex surface and a concave surface of a basin body are described by utilizing a two-dimensional contour function, dielectric functionally graded material distribution is considered to be introduced, dielectric property space distribution is adjusted by utilizing topological optimization to actively regulate and control electric field distribution, and a creeping electric field is further deeply homogenized; in the detailed designstage, according to a dielectric distribution topological optimization result, the optimized gradient insulation area is converted into a high dielectric area with a constant dielectric constant, thesizes of the high-voltage side metal accessory and the high dielectric area are finely adjusted, an optimal size parameter is found out by adopting a genetic algorithm or an ant colony algorithm so as to finish the design of the basin-type insulator for GIS / GIL. The design space can be fully expanded, depth suppression of a creeping electric field is achieved, and the purpose of increasing the breakdown voltage of the basin-type insulator is achieved.
Owner:XI AN JIAOTONG UNIV

Method and system for video image strong light suppression and contour and detail enhancement processing

The invention provides a method and a system for video image strong light suppression and contour and detail enhancement processing. The method comprises the following steps: performing initialization setting, obtaining a video image in an original video through an image sensor in real time, and obtaining a standard curve corresponding to the video image, wherein the standard curve is a relation between light and video output voltage; adjusting the standard curve corresponding to the video image according to a preset target curve, and obtaining a video image after strong light suppression processing, wherein the target curve is a preset output characteristic curve; performing system conversion on the video image to be outputted through a video system converter, and obtaining an outputted video image. According to the method and the system for video image strong light suppression and contour and detail enhancement processing, while the video image is subjected to strong light suppression processing, an area with weak light is subjected to enhancement processing, and the video image is subjected to contour and detail enhancement processing, so that a target can be clearly seen from a strong light position and a weak light position as far as possible.
Owner:钧捷智能(深圳)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products