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679 results about "Shape matching" patented technology

Manufacture method for polarization maintaining fiber and polarization maintaining fiber

The invention provides a manufacture method for polarization maintaining fiber and a polarization maintaining fiber, and relates to optical waveguide fibers in the field of fiber-optical communication and fiber optical sensors. The method comprises the following steps that: (1) two oppositely arranged open slots with a same shape are inwardly provided at a side surface of a glass mother rod, stress rods are machined to obtain a shape matching the open slots, and the centers of the cross sections of the two open slots and the center of circle in the cross section of the glass mother rod are in a same line; (2) the stress rods are respectively inserted into each open slot on the glass mother rod, and the assembled glass mother rod and stress rods are put in a cannula to form a preformed rod of the polarization maintaining fiber; (3) the preformed rod of the polarization maintaining fiber is drew to form the polarization maintaining fiber. According to the invention, the glass mother rod is provided with the open slots, and the stress rods are embedded in the open slots, thereby obtaining high process repeatability; inner surfaces of the open slots have high fineness, and the open slots have good symmetry, thereby improving processing efficiency; therefore, the optical performance and reliability of the polarization maintaining fiber are substantially improved.
Owner:RUIGUANG TELECOMM TECH CO LTD

User interface for removing an object from a display

A digital system that may be used by children two years old and older. The digital system is contained in a child-proof case and has an upward-facing display with a touch-sensitive screen that is within easy reach of a child. Other I / O devices include proximity and motion sensors and a microphone, and there is also a loudspeaker. When a proximity sensor senses someone in the neighborhood of the system, it displays images on the display. A child may manipulate the images by touching them on the touch screen. Manipulations include selecting an image by touching it, “dragging” the selected image by moving the finger touching the image across the screen and “dropping” the image by lifting a finger from it, moving a selected image by touching another location on the screen and thereby causing the selected image to move to the touched location, removing an image from the screen by “throwing” it, i.e., moving it above a threshold speed, and modifying the image by tapping it twice and then moving the finger in a horizontal or vertical direction on the screen. The direction in which an image is thrown may further determine what the thrown image is replaced with. The manipulations are used to in activities such as shape matching, puzzle assembly, assembly of a face out of parts, and hide-and-go-seek.
Owner:FLATWORLD INTERACTIVES

External fixation device for reducing bone fractures

The invention relates to a novel type of an external fixation device having a carrying structure (1; 40) of interconnected elements (2, 5, 6) comprising an extendible central body (2), and clamps (5, 6) for bone screws respectively articulated on opposed ends (3, 4) of the central body (2), said central body comprising two parts (8, 9) telescoping slidable one on the other, each of said parts (8, 9) including a first portion (8a; 9a) of elongate shape formed integrally with a second end portion (8b; 9b) of substantially cylindrical shape, said first portions (8a, 9a) of the parts (8, 9) being slidably coupled to each other by means of a driving groove (7) formed longitudinally in one the first portion (8a) and a corresponding slide (7a) formed longitudinally in the other first portion (9a) and means being provided in said parts (8, 9) for stopping their sliding movement characterized in that it further comprises at least one plate (27; 41; 42; 43; 60) having predetermined contour shape and thickness, at least one recess (28; 44; 47; 51) formed on the surface of at least one of the interconnected elements (2, 5, 6) and having its contour shape matching the contour shape of said at least one plate (27; 41; 42; 43; 60), and means (30, 31; 46, 46a; 49, 50 53, 54) for releasably securing said at least one plate (27; 41; 42; 43; 60) in said at least one recess (28; 44; 47; 51).
Owner:ORTHOFIX SRL

Map matching method, map matching device, database for shape matching, and shape matching device

An object of the present invention is to provide a map matching method capable of performing a process operation in a high speed. In the map matching method of the present invention, while employing road network data in which road networks are formed in a plurality of hierarchical layers “a”, “b”, “c”, and a road network of an upper-grade hierarchical layer is established by such a road network which is extracted from a road network having a lower-grade hierarchical layer lower than the road network having the upper-grade hierarchical layer, a road network of the uppermost-grade hierarchical layer “a” is matched with a shape vector indicative of a shape of a objective road in a beginning stage; and when such a candidate road which is matched with the shape vector cannot be obtained in the road network of the uppermost-grade hierarchical layer “a”, since such a road network having another hierarchical layer “b”, or “c” is matched with the shape vector, the objective road is identified. In the most cases, as to a objective road of traffic information and the like, the objective road can be identified by executing a map matching operation with employment of the road network having the uppermost-grade hierarchical layer “a”, and the map matching operation can be carried out in a high speed.
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA

Calligraphy character identifying method

The invention discloses a calligraphy character identifying method. A signal calligraphy character image is collected and Chinese character semanteme is manually annotated, wherein the Chinese character semanteme corresponds to the signal calligraphy character image. The calligraphy character feature information of the signal calligraphy character image is extracted and stored in a feature data bank after binaryzation processing, denoising processing and normalization processing are conducted to signal calligraphy character image. The feature information comprises four boundary point positions of the calligraphy character of the signal calligraphy character image and average stroke passing numbers, projecting valves and outline points in a horizontal direction and a vertical direction of the calligraphy character. Then, to-be-identified signal calligraphy character image is processed. The feature information of the to-be-identified signal calligraphy character is extracted and shape match is compared after preliminary screening. The calligraphy character is screened in the feature data bank, wherein the shape of the calligraphy character is similar to the shape of the to-be-identified calligraphy character. Finally, weight calculation is conducted to same semanteme calligraphy character image and the same semanteme calligraphy character image is merged. Identifying results are given. The calligraphy character identifying method has the advantages of being small in calculated amount, capable of giving an accuracy identifying result in a short time and capable of having no specific requirements for the to-be-identified calligraphy character image offered by users.
Owner:ZHEJIANG UNIV

Method for detecting surface defects of ceramic valve cores based on machine vision

The invention discloses a method for detecting surface defects of ceramic valve cores based on machine vision. The method comprises the following steps: respectively establishing templates and mask plates for the ceramic valve cores in different sizes; respectively performing template shape matching with the polishing surface templates and non-polishing surface templates in corresponding sizes according to a to-be-detected surface image of a to-be-detected ceramic valve core; confirming the surface, position and direction of the to-be-detected surface image, and then aligning the to-be-detected surface image with a selected template and mask plate; performing Blob detection on the to-be-detected surface image of the to-be-detected ceramic valve core; and performing crack detection on the to-be-detected surface image. According to the method for detecting surface defects of ceramic valve cores based on machine vision provided by the invention, the surface defects of the to-be-detected ceramic valve core can be automatically detected, the detection stability is high, the detection cost is low, the detection speed is high and the detection rate reaches 95%. Besides, the total time for detecting and recognizing various defects is less than 0.3 second. The method can be widely applied to the field of detection for the surface defects of the ceramic valve cores.
Owner:HUBEI UNIV OF TECH
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