41results about How to "Realize the occlusion effect" patented technology

The invention relates to a screen carrying device with the size being adjustable. The screen carrying device comprises a base plate, a middle layer plate, an upper left plate and an upper right plate.The base plate is placed on a horizontal plane and provided with a rectangular through hole. The left side edge and the right side edge, in the width direction of the rectangular through hole, of thebase plate are provided with a left guide rail and a right guide rail correspondingly. The front side edge and the rear side edge, in the length direction of the rectangular through hole, of the baseplate are provided with an upper front plate and an upper rear plate. The left end and the right end of the middle layer plate are connected with the left guide rail and the right guide rail in a sliding manner correspondingly. A left support and a right support are connected to the middle layer plate in a sliding manner. The two ends of the upper left plate are connected with the upper front plate and the upper rear plate in a sliding manner correspondingly. The upper left plate is connected with the left support in a sliding manner. The left end and the right end of the upper right plate are connected with the upper front plate and the upper rear plate in a sliding manner correspondingly. The upper right plate is connected with the right support in a sliding manner. By means of the screen carrying device, the upper left plate and the upper right plate can slide leftwards and rightwards in the horizontal direction; the middle layer plate can slide in the front-back direction; size adjustability of a screen supported by the screen carrying device is achieved; and the screen carrying device is wide in applicability and easy to adjust.

The present application discloses a method for identifying a moving foreground in a video, comprising: acquiring a video frame to be processed that includes a video implant target area; determining a corresponding region of interest according to the video implant target area; For the region of interest, the moving foreground of the region of interest is roughly segmented by comparing the foreground with the background; for the rough segmentation result, the moving foreground of the region of interest is finely segmented through image edge processing to obtain the moving foreground segmentation result. It can quickly and accurately identify the moving foreground in the video frame in real time.

The invention discloses a multifunctional aluminum alloy door and window and relates to the field of aluminum alloy door and window structural design, a cooling window is arranged between an upper door frame body and a lower door frame body, a plurality of cooling bosses are evenly arranged on the side face of the cooling window, and taper holes used for reducing the indoor temperature are formed in the cooling bosses; a gauze element for preventing mosquitoes from entering a room is arranged in the conical hole; a flapping mechanism used for flapping the cooling window to collect mosquitoes is arranged on the side face of the upper door frame body, a bent guide groove is formed in the bottom of the conical hole, a vertical channel is formed in the end of the bent guide groove, a storage mechanism used for collecting the mosquitoes is arranged at the end of the vertical channel, and a winding mechanism used for shielding is further arranged on the side face of the upper door frame body. By means of the design, the effect of reducing the indoor temperature is achieved by means of the fact that the flow speeds of airflow at the two ends of the conical hole are different, and meanwhile mosquitoes on the gauze are flapped down through the flapping mechanism and collected and treated.

The invention relates to a television-program producing-broadcasting technique in the field of radio and television, in particular to a method for realizing unlimited blue-box function used in virtual studio systems. The method is characterized in that surface sheet structures are generated in a complementary-set region of a blue box to form a geometric body; each surface of the geometric body isa plane; every plane is taken as a mask; filled signals are background signals; when a camera is swung out of a blue-box region, the planes taken as masks are rendered in an Alpha cache; meanwhile, according to foreground, background and occlusion relation, three-dimensional objects used to occlude the foreground are extracted to be rendered in the Alpha cache; rendered images are synthesized to be video signals output to a color key through an Alpha channel; and the color key serving as a foreign key is synthesized with the background and the foreground in real time to generate video images reflecting three-dimensional effects. The method during application can fine adjust the size of blue boxes in order to be matched with different size of the blue boxes to realize final occlusion effects, thereby perfectly fusing the foreground with the background.

The invention provides an air vehicle adopting a double-pointed-cone fish tail type front edge aerodynamic layout. The air vehicle comprises a vehicle body and an engine. The vehicle body comprises head pointed cones, a transition section, air inlet channel pointed cones and a blended wing body. The two head pointed cones are adopted and symmetrically arranged on the two sides, so that the low-pressure area of the head of the air vehicle is effectively enlarged, the trim capability of the whole vehicle is improved while the lift force is increased, and the trim resistance of the whole vehicle is reduced; by designing the transition section in the gap between the head pointed cones and the blended wing body, the vortex core central position on the inner sides of the head pointed cones is controlled, unfavorable interference between vortexes is reduced, the air flow energy of the upper surface is supplemented at the same time, and the lift force is increased; the air inlet channel pointed cones are arranged in the middle of the transition section, and then the vortex lift force of the upper surface of the air vehicle and high-angle-of-attack air inlet efficiency are improved; besides, the shielding effect on an air inlet channel is achieved through the head pointed cones and the transition section, and the hidden performance is improved; by means of the design of a plane groove surface between an air inlet channel lip and a tail jet nozzle on the lower surface of the air vehicle, the purpose of increasing the lift force is achieved. By means of the aerodynamic layout scheme, the hidden performance, taking-off and landing performance, subsonic speed and transonic speed maneuvering characteristics, the supersonic cruise performance, the poststall maneuver performance and other indexes can be well considered.

The invention discloses a powder covering and sweeping device during electrostatic powder spraying. The powder covering and sweeping device comprises a powder room provided with an inlet and an outlet, wherein an end part blowing device is arranged at the outlet in the powder room; a side part air screen device is arranged on each of two sides of the width of a sprayed base material in a traveling direction; the end part blowing device and the side part air screening devices are mounted and connected to corresponding connecting and fixing structures on a side wall of the powder chamber or a ground surface of the powder chamber. The device is used for sweeping and removing powder attached to a plate surface not required to be sprayed with the powder; compressed air screens are formed for covering excess powder floating from the two sides of the sprayed base material and sweeping and removing the powder attached to a side part of the surface, so that the plate surface not required to be sprayed with the powder on the side can be guaranteed to be clean, the requirement on a condition that the surface is subjected to a next working procedure or process can be met, the efficiency is high, and the effect is good; flow, a position far away from the plate surface and an angle for each spray nozzle can be all adjusted, the spray nozzle also can be closed to meet an actual working condition, and the device is simple and convenient to operate.