57results about How to "Solve stitching problems" patented technology

The invention discloses a search method and system for optimal splicing lines among images based on graph-cut energy optimization. According to the method, data preparation of the images to be spliced is performed, and all overlap regions and corresponding overlap degrees among all the images to be spliced are obtained; the images to be spliced are preprocessed, color, gradient and texture information is comprehensively considered to determine a graph-cut global energy function which includes a data item and a smooth item, weighting setting is performed on energy of the smooth item, the graph-cut energy optimization method is adopted for optimizing total energy, and therefore the optimal splicing lines are obtained. The obtained splicing lines are prevented from passing through regions which are overlarge in color difference and complex in texture and passing through edges obvious in ground feature as much as possible, so that optimization of the splicing lines is ensured to the maximum degree, the problem of optimizing multi-image multi-degree overlap region splicing lines in a combined mode is solved, and the application range is wide.

The invention relates to a virtual restoration method for interactive broken relics. The method comprises the steps that (1) relic piece data acquisition and classification are carried out; (2) three-dimensional model interaction based on Wiimote is carried out; (3) complementary splicing and virtual restoration of relic pieces are carried out; (4) relic virtual restoration based on template matching is carried out; and (5) relic entity restoration based on three-dimensional printing is carried out. According to the invention, an MSME three shaft accelerometer, a gyroscope and an infrared induction strip are used to realize interaction control of relic models; real-time calibration is carried out on MSME displacement and attitude 6 freedom degree information; the limitation of poor interaction control accuracy caused by gravity acceleration and poor MEMS sensitivity is overcome; the relic piece virtual restoration problems of two conditions that semantic relevance exists while a complementary matching relationship is inconsistent, and a complementary relationship is consistent while strict edge matching cannot be realized are solved; and rapid relic entity restoration can be completed with a three-dimensional printer.

The invention relates to a method for splicing maskless digital projection lithography pattern. The method comprises the steps of S1 segmenting a pattern to be etched to obtain multiple segmented frames of sub-pattern, wherein each frame of sub-pattern is of same size; S2 setting a template size which is the same with the size of each frame of sub-pattern; S3 multiplying each segmented frame of sub-pattern by the template to obtain a boundary splicing region of the sub-pattern, and employing a gray modulation template to modulate the gray value of the boundary splicing region to obtain the modulated sub-pattern; S4 carrying out exposure on the modulated sub-pattern frame-by-frame with digital micromirror display to realize the splicing of the reproduction transfer of the modulated sub-pattern which is displayed by the digital micromirror to a substrate. The method provided by the invention can fairly solve the splicing problem which exists when a pattern with a large area is etched, thus the etching quality of the digital projection lithography pattern is improved.

The invention provides a spacecraft heliocentric ellipse suspension track design method based on the solar sail propulsion technology. The method comprises the steps that the characteristics of track suspension height are analyzed, and the suspension height is decomposed into the suspension height with a constant value, and the suspension height changing in direct proportion to the sun-planet distance; on the basis, a track dynamic model of a solar sail spacecraft under a rotation inconsistent fit coordinate system is established, conditions for forming a heliocentric ellipse suspension track are given according to the balance of a two-level dynamic model, the balance conditions are met by controlling posture changes of a solar sail and changes of reflectivity, and then the heliocentric ellipse suspension track of the solar sail is obtained. The spacecraft heliocentric ellipse suspension track design method based on the solar sail propulsion technology provides a worthy reference general method for heliocentric ellipse suspension track design based on the solar sail propulsion technology.

The invention relates to a dual-frequency combined filter and filtering method for eliminating single-point GPS high-order position errors. The filter comprises an input part, a high-frequency combined part, a low-frequency combined part and an output part; the input part comprises a strapdown inertial measurement unit (SIMU) and a GPS module; the high-frequency combined part comprises a strapdown calculating module A and a Kalman filter (KF); the low-frequency combined part comprises a strapdown calculating module B and an LSSVM filter; the output part comprises a motion compensation unit; the structure of the high-frequency combined part is similar to that of a traditional SINS/GPS combined navigator, the low-frequency combined part isolates the single-point GPS high-order position errors through the independence of the strapdown calculating module B, and the high-order errors in position information output by the high-frequency combined part are filtered out by an LSSVM online learning and training model. In addition, when each low-frequency filtering period is finished, position calibration is provided for the strapdown calculating module B through predicted values of an LSSVM, therefore, position accumulation errors are prevented from entering the real-time motion compensation unit, and the connection and compensation problems of the position information among all low-frequency segments are properly solved.

The invention discloses a clamping groove device for fixing wall plates. The clamping groove device for fixing the wall plates comprises a steel angle and a clamping groove; the clamping groove is provided with four sides, wherein two sides are inserted into the notches in the two sides of the steel angle; the steel angle and the clamping groove are fixed by sleeving mutually; one section of a wall plate is embedded into the clamping groove to achieve the effect of connecting the wall plates in a corner.

The invention relates to a film removing method and film removing device for coated glass. Particularly, scribing film removing is conduced on the coated glass by adopting laser, and the problem that chemical etching pollutes the environment is solved. Meanwhile, due to the fact that the working range of a high-speed galvanometer is limited, the film removing method comprises the steps that the whole piece of coated glass is divided into at least two film removing areas through cooperation of software and a CCD sensor, an image of one film removing area is acquired through the CCD sensor, even positioning points are set, and the software acquires the positioning points on a displacement path in real time; when film removing is conducted on the next film removing area, overlapped film removing is firstly conducted on the part, close to the junction of the two film removing areas, of the precious film removing area, a displacement path of overlapped film removing can be acquired according to the positioning points located on the displacement path in the area subjected to film removing, therefore, a film removing line is more coherent, splicing lines or splicing traces generated at the junction of the two film removing areas are eliminated, and the splicing problem of large-breadth coated glass etching is solved.

The invention provides an improved piecewise affine transformation model-based city remote sensing image splicing method. The method comprises the steps of firstly, for city remote sensing images obtained by a satellite-borne non-colinear multi-line array CCD camera, obtaining dense matching points of an image overlapping region by adopting a normalized image matching algorithm, and removing mismatching points in the dense matching points to obtain homonymy points capable of really reflecting an inter-piece relative position relationship; secondly, converting a coordinate position relationshipof homonymy point pairs of the overlapping region into an inter-piece offset curve, and performing segmentation on the inter-piece offset curve according to an overall change trend and local change characteristics of the inter-piece offset curve, thereby ensuring curves in all segments to be nearly linear; and finally according to a segmentation result of the offset curve, performing segmentationon corresponding image pairs, building an inter-image affine transformation model in each segment, and performing registration on the images, thereby realizing the splicing of the adjacent images. Therefore, the problem of the splicing of the city remote sensing images obtained by the non-colinear multi-line array CCD camera is solved.

The invention provides a full-scanning microscopic image splicing method based on peak search and gray template registration, and belongs to the field of image processing. The invention provides a method for selecting a discontinuous focusing region based on a gray histogram. The method comprises the following steps of: extracting a region mainly acted by an evaluation function; making definitioncalculation through an improved Tenegrad gradient evaluation function; and gradually obtaining an optimal focusing position by using an improved hill climbing algorithm; preprocessing the dyed urinarysediment microscopic image through graying and filtering operation; to acquire a smooth gray-scale image with a small calculated amount performing registration on adjacent images by using an improved template registration algorithm based on a gray-scale value, and finally fusing an overlapping region of two images by using an improved fusion method based on a variable weight. The problem of automatic focusing of the sample is solved, the microscopic image can be rapidly and accurately obtained, the problem of microscopic image splicing is also solved, and the image splicing time is also reduced.

The invention discloses a method for generating a filling graph of an FDSOI standard unit and a layout method. The method comprises steps of acquiring parameters of an FDSOI standard unit in a standard unit database; determining parameters of the filling unit according to the parameters of the FDSOI standard unit; generating the filling graph of the FDSOI standard unit according to the parametersof the filling unit. The method is advantaged in that the parameters of the filling unit are determined according to the parameters of the FDSOI standard unit, the filling graph of the FDSOI standardunit is generated according to the parameters of the filling unit, as the parameters of the filling unit are determined based on the parameters of the FDSOI standard unit, a splicing problem of different types of FDSOI devices can be solved, different types of FDSOI devices can be prepared on the same wafer, and production cost is reduced.

The invention discloses a line structured light based large section measurement method in a complex light environment. The method includes the steps of: extracting a structured light suspected region; eliminating a misidentification region in the structured light suspected region to obtain a preliminary identification region; conducting representative curve extraction on the basis of the preliminary identification region; transforming the pixel coordinate of the line structured light representative curve extracted from the image into an object coordinate; and fitting the coincident part linear form of the images where adjacent two sets of line structured light are located, and then conducting splicing fusion of multi-section curves. In a complex light environment, the method provided by the invention can intelligently eliminate the influence of enormous difference existing between complex environment light and measured object surface reflective medium, and accurately extract the measured line structured light profile curve. Under the circumstance of ensuring consistent accuracy, multiple line structured light is combined to measure fast large section profiles.

The invention discloses a 3D printed wall and a splicing method thereof. The 3D printed wall comprises a first wall assembly and a second wall assembly which are made through the 3D printing technology and caulking plates made through the 3D printing technology. Sealing glue is smeared on the two sides of each caulking plate. The first wall assembly and the second wall assembly are connected to the two sides of each caulking plate through the sealing glue and spliced through the caulking plates to form splicing space. A reinforcement mesh is vertically placed in the splicing space. Concrete is poured in the first wall assembly, the second wall assembly and the splicing space to form the 3D printed wall. The splicing method of the 3D printed wall is simple.

The embodiment of the invention provides a tracking positioning and mark point positioning hybrid positioning method and device. The method comprises the steps of setting two scanning modes for hybridusage, namely, a Tracker mode and a Handy mode; if the Tracker mode is adopted when the scanning is started, switching to the Handy mode when beginning to enter a shielded area, and switching to theTracker mode after leaving the shielded area; and if the Handy mode is adopted when the scanning is started, switching to the Tracker mode when beginning to enter an unshielded area, and switching back to the Handy mode after entering the shielded area again. The splicing problem of the point cloud in the presence of shielding can be solved by calculating the conversion relationship between the point cloud in the Tracker mode and the point cloud in the Handy mode.

The invention belongs to the technical field of exploration and prospection of uranium resources, and in particular, relates to a method for correcting soil-gas radon instantaneous measurement data inuranium ore exploration and prospection. The method particularly includes the steps: step one, synchronously measuring soil-gas radon in multiple measurement points of a work area; step two, calculating a measurement data correlation coefficient; step three, determining horizontal and vertical intervals of a division measurement unit; step four, dividing the measurement unit; step five, determining measurement unit observation points and recording the gas radon concentration values of the observation points; step six, carrying out area measurement of the measurement unit; step seven, dividingthe time period, and calculating the correction coefficient; and step eight, determining the measurement unit correction value, and correcting data. The method can effectively reduce errors, caused due to different measuring time, between different measurement points of the same work area, makes the measuring time of different measurement points of the same work area unify to a same time, and more truly reflects soil-gas radon field distribution characteristics in the work area at the same time point; and a data splicing problem of different work areas in different years also can be solved.

The invention relates to a multipath static pure switching system and method during super high definition television broadcasting. The system comprises a switching control console; the switching control console is connected with a one-in-four distributor composed of pure hardware; the one-in-four distributor are connected with four one-from-plurality switchers that at least more than two video signals can access; each one-from-plurality switcher is provided with a command capturing device, an anti-shake filtering device, an audio mute device, a switching line window capturing device and a video and audio signal switching device connected in sequence. According to the system and method provided by the invention, the switching is triggered by using the most concise signal such as the TTL level through using the characteristic of the programmable gate array of the one-from-plurality switcher by the way of simplifying the switching signal, and the complex switching process is simplified via measures such as preventing shake, being mute and capturing the line synchronization window, so that the splicing problem of splicing the four images into one super high definition image during thesuper high definition switching process is ingeniously solved, the super high definition multipath switching is achieved in an extremely switching manner, and the cost is reduced.

The invention provides an algorithm for splicing area-array camera pictures. The algorithm comprises the following steps of calculating the overlapping area of each sub-picture in a to-be-processed image, setting a mark according to the overlapping area, and solving a default value of each column of sub-pictures according to the overlapping area. Changing the marks of the sub-images according to the comparison result of the overlapping area of each sub-image and the default value of the corresponding column, adjusting the overlapping area of each sub-image according to the marks, and finally splicing all the sub-images to form a spliced whole image. According to the method, the discrete sub-images in the to-be-processed image are effectively spliced, the problem of area-array camera imagesplicing is effectively solved, the discrete adjacent images can be perfectly connected, and the finally obtained spliced whole image is continuous, seamlessly connected and not repeated, and the calculation efficiency is high.

The invention provides a method and a system for splicing aerial views of a tractor. The method comprises the following steps: calibrating a plurality of cameras mounted on the tractor; acquiring a real-time image shot by the camera after calibration and position and attitude information output by an imu module mounted on the tractor; when the position and attitude information is judged to obtain that the tractor is in non-rigid motion, adjusting the real-time images by using the position and attitude information, and splicing the adjusted real-time images into an aerial view; and when the position attitude information is judged to obtain that the tractor is in rigid body motion, splicing an aerial view according to the real-time images. According to the method, six-eye aerial view splicing in a common scene is expanded to a wider application scene through an imu module, the aerial view splicing problem of the tractor in a non-rigid body motion scene is solved, and the vehicle body aerial view around the tractor can be completely and clearly presented.

The invention relates to an LED display screen splicing system, device and method. The LED display screen splicing system comprises a main control module, a mounting base, a rotary driving unit, a linear driving unit, a displacement sensor assembly and a sub-control module. The LED display screen is mounted on the mounting base and can be driven by the rotary driving unit so as to realize rotation; the mounting base can be driven by the linear driving unit to move horizontally; the rotation of the LED display screen is controlled by the sub-control module; the movement of the mounting base iscontrolled by the main control module; and the functions of automatic unfolding, splicing, closing and folding of the LED display screen can be achieved. Therefore, a technical means of combining horizontal movement, rotation and displacement sensor assemblies is adopted for LED display screens in the invention; the technical problems that an LED display screen structure occupies a large space andcannot be flexibly applied to a use scene are solved; and the technical effects that the LED display screen can be automatically unfolded and spliced in use, can be folded when not in use and is flexibly applied to various use scenes are achieved.

The invention discloses a splicing method of light field images with inconsistent focal lengths. The method comprises the following steps: inputting light field data to be spliced to obtain a light field focus stack, carrying out focal length consistency matching on each depth layer in the light field focus stack to obtain a focal length consistency matching label corresponding to each depth layer, and synthesizing a focal length consistency image according to the focal length consistency matching labels; performing feature point extraction, matching and screening on the light field sub-aperture image and the image with the consistent focal length to obtain feature points and matched feature point pairs; predicting a global homography transformation matrix according to the matched featurepoint pairs, establishing a weight matrix of local mapping, and predicting an optimal homography transformation matrix; and mapping a central sub-aperture image according to the optimal homography transformation matrix, calculating a transformation matrix between the edge sub-aperture image and the central sub-aperture image, and mapping a 4D light field to obtain a light field splicing result. The light field splicing method solves the problem of splicing between light fields when the focal lengths are inconsistent, and realizes an accurate light field splicing method.

The invention discloses a three-dimensional image splicing method based on three-dimensional scene reconstruction. The method comprises the following steps: A, inputting left views and right views of two three-dimensional images; b, modeling a corresponding three-dimensional point cloud scene by using the three-dimensional image; c, splicing the three-dimensional point cloud scenes of the two three-dimensional images into a three-dimensional panorama of the region of interest based on the three-dimensional matching point pairs; d, dividing the spliced three-dimensional point cloud scene into a combination of a viewpoint region and a viewpoint transition region through optimal viewpoint region segmentation; e, executing an inverse mapping algorithm, and re-projecting the three-dimensional point cloud scene to obtain a left view and a right view of the three-dimensional image; and F, outputting a left view and a right view of the spliced three-dimensional image. According to the invention, the splicing problem of close-shot large-parallax stereo images can be well solved, and a splicing result with good alignment and consistent parallax can be obtained.

The invention provides a real-time splicing processing method for a multichannel ultrahigh resolution panoramic video. The method comprises the following steps of transforming two-dimensional coordinates of an output image of the panoramic video in a two-dimensional coordinate system into longitude and latitude coordinates in a longitude and latitude coordinate system; transforming the longitude and latitude coordinates into normalized Cartesian orthogonal coordinates; determining a target input plane according to the normalized Cartesian orthogonal coordinates; computing in-plane two-dimensional coordinates in each target input plane; and splicing the in-plane two-dimensional coordinates to form the panoramic video in real time. Through adoption of the technical scheme of the invention, the splicing of the multichannel ultrahigh resolution panoramic video can be completed under the lower hardware cost in a real-time, efficient and lossless manner.

The invention provides a fabricated steel-bamboo combined semi-rigid energy dissipation joint frame. The fabricated steel-bamboo combined semi-rigid energy dissipation joint frame is characterized bycomprising steel columns, semi-rigid energy dissipation joints and bamboo beams, wherein the bamboo beams are arranged between the top ends of every two adjacent mutually parallel steel columns, eachend of the bamboo beams is provided with a semi-rigid energy dissipation joint, bottom plates of the semi-rigid energy dissipation joints are connected with the steel columns through bolts, and ribbedplates are connected with the bamboo beams through bolts. According to the fabricated steel-bamboo combined semi-rigid energy dissipation joint frame, the bamboo beams and the steel columns are connected into a frame structure system with seismic capacity, wall bearing is not needed, the mechanical properties of materials are fully utilized, the cost is low, and the steel columns are adopted to replace traditional solid bamboo columns so as to improve the force on members in the frame structure system; and through the semi-rigid energy dissipation joints, it is ensured that the joints have enough shear capacity and flexural capacity, meanwhile, the rotational stiffness of the joints is improved, the splicing problem between a multi-high-rise wooden/bamboo structure and all layers of columns is solved, and weakening due to the fact that holes and grooves are formed in column members is avoided.

The volute making process without preassembling step includes two main technological processes of ring volute making and volute transition section assembling. The ring volute making process includes ten steps, including preparing material, splicing, cutting, making splicing chamfer, indentering and forming, checking data, marking cutting line, polishing, marking, and coating with paint and cement slurry. The present invention can ensure the influent installation of volute in power station, and has the advantages of short welding time, no need of preassembling, low cost, short production period, etc.

The invention provides an auxiliary measuring device and method for the percentage elongation after fracture and the percentage reduction of area of a tensile test. The device comprises a left sample supporting groove, a right sample supporting groove, a transmission rod assembly and a guide rail, wherein a post-fracture test sample is carried by the left sample supporting groove and the right sample supporting groove to reciprocate on the guide rail, and the two end faces with the post-fracture test sample are accurately spliced together, so that the subsequent measurement work is facilitated, and the residual elongation and the sectional area of the post-fracture test sample are obtained.