526results about How to "Good stitching" patented technology

The invention discloses a panorama parking calibration method and a device, and an automatic calibration method, wherein the panorama parking calibration method comprises the steps of obtaining pictures which is captured by an automobile camera; using default parameters of a panorama parking system to generate an aerial view; distinguishing tag blocks on the aerial view; distinguishing controlling points according to the tag blocks; obtaining actual positions and ideal positions of the controlling points, wherein the controlling points are intersection points of lines and distributed in a net shape, and the ideal positions are appointed positions in the aerial view; and optimizing by utilizing difference between the actual positions and the ideal positions of each controlling point in the aerial view and obtaining lens distortion correction parameters and perspective transformation parameters of a wind-angle camera which corresponds to the aerial view. The area of the tag blocks is greater than that of the intersection points and is easy to distinguish. A light color is adopted on distinguish strips and a deep color is adopted on a carrier so as to reduce effects which are caused by reflect light, an absolute coordinate of a calibration pattern on a coordinate system is positioned and calibrated accurately, and a success rate of calibration is improved.

The invention provides a large-scale multiple-object ultrasonic tracking and locating system and method, relating to an indoor object tracking and locating system and method based on ultrasonic wave. The large-scale multiple-object ultrasonic tracking and locating system comprises an emitting assembly, a receiving assembly and a calculating display unit, wherein the emitting assembly comprises a plurality of ultrasonic signal emitters with different frequencies or different time slot features, and each emitter is installed on different objects and used for periodically emitting ultrasonic signals; the receiving assembly comprises a plurality of ultrasonic signal receiving and processing units for receiving and processing the ultrasonic signal emitted by the emitter; and the calculating display unit comprises a USB (Universal Serial Bus) and an upper computer three-dimensional display server. The invention realizes the tracking and the locating of large-scale multiple-object by schemesof spatial subdivision, time frequency combination, spatial handoff and the like. The locating system of the invention has the characteristics of large locating range, multiple tracking objects, no synchronous error, no need of complex network protocol, low power consumption, high stability and the like.

A handheld wand comprises a probe at a distal end of the elongate handheld wand. The probe includes a light projector and a light field camera. The light projector includes a light source and a pattern generator configured to generate a light pattern. The light field camera includes a light field camera sensor, the light field camera sensor comprising an image sensor comprising an array of sensor pixels, and an array of micro-lenses disposed in front of the image sensor such that each micro-lens is disposed over a sub-array of the array of sensor pixels.

A mosaicking method for large breadth cultural heritage image is provided, which relates to the technical field of image matching and image mosaicking. The invention comprises the following processing procedures: 1) aiming at the features of cultural heritage image, adopt an angle point detection method to extract the angle point of image, which can be taken as image feature for the matching of images; 2) calculate gradient of straight line connected between the matching points of nearby images, and; adopt a clustering method to pre-select the correlation points between images by utilizing the similarity of gradient; 3) adopt a best route method to generate a smaller mosaicking route with little pixel value, so as to evade the area with big pixel difference and remove the ghost image; 4) use a brightness component in HIS color space and blend the brightness via weighted function formula according to the mosaicking route. Compared with other mosaicking method, the method provided in the invention is able to greatly improve the speed for image mosaicking, eliminate the brightness difference of image, remove the ghost image in mosaicking and realize ideal mosaicking result.

The invention discloses a method for mosaicking images, which comprises the following steps: extracting image key points and characteristic parameters of the key points for a first image and a second image which are to be mosaicked respectively; acquiring a corresponding key point pair between the first image and the second image; acquiring a transformation relation between the position coordinates of image points of the two images according to the key point pair; according to the transformation relation, transforming the images points in the second image; and mosaicking the transformed second image and the first image to obtain an mosaicked image. The method computes and mosaicks directly according to characteristic points of the images, is suitable for most users of mobile terminals with common photographic level and for mosaicking complex images such as rotation, zoom and angular transformation, is simple, convenient, and extremely suitable for real-time use by a mobile terminal.

The invention discloses an image processing method for a panoramic vehicle safety system based on multi-camera self calibration. The image processing method relates to automatic recognition, automatic correction, automatic view angle conversion and automatic splicing image conversion. The image processing method specially comprises the steps that calibration cloth recognition is conducted on collected images, and the position information of edge corner points on checkerboard calibration cloths of the collected images are extracted automatically; a distortion model is established, distortion parameters are iterated, and a distortion correction map is obtained; affine transformation is conducted on the distortion correction map to obtain images after view angle conversion; the images collected by a plurality of cameras are subjected to transformation processing and marked by encoded points, and the images collected by the cameras are spliced and integrated. Compared with the prior art, the image processing method for the panoramic vehicle safety system based on multi-camera self calibration has the following advantages that the method supports splicing of any multiple cameras, splicing is convenient and fast, a user only needs to input the number of the cameras, the calibration cloths are matched for use, and a panoramic image can be spliced in a full-automatic mode.

The invention discloses an automatic parking space recognition panoramic look-around image real-time splicing method based on look-around. The method comprises the following steps: 1) acquiring imagedata through a fisheye camera; 2) performing distortion correction on the image to obtain a fisheye image after distortion correction; 3) performing inverse perspective transformation on the image after distortion correction to obtain four aerial views of the front, rear, left and right of the automobile body; 4) splicing the obtained aerial views to obtain a 360-degree panoramic look-around imagearound the automobile body; 5) optimizing an image splicing seam by adopting a fusion algorithm to obtain a 360-degree panoramic look-around image around the vehicle body; and 6) inputting the obtained 360-degree panoramic look-around image around the automobile body into a deep learning target detection model for automatic parking space identification and drivable area identified.The method provided by the invention has the advantages of small calculated amount, high real-time performance, high precision, good effect and easiness in implementation.

The invention discloses a panoramic video splicing method. A mapping table from the source image to the splicing image is generated by means of 'initial splicing', the multi-channel video images that participate in the splicing are directly projected to the final panoramic image by means of 'main splicing' based on the mapping table, and the splicing result is output. The spliced panoramic video image has the advantages of good quality and ideal splicing effect, and can meet the various demands of consumers.

The invention discloses a method and a device utilizing Photoshop to realize picture splicing. The method includes: S1, opening multiple original pictures; S2, receiving a starting instruction, and displaying a picture splicing template dialog box; S3, receiving a selecting instruction, and selecting a picture splicing template from the picture splicing dialog picture to serve as an original picture splicing template; S4, automatically copying the original picture splicing template to generate a target picture splicing template, and closing the picture splicing template dialog box; S5, sequentially copying the original pictures to generate multiple corresponding target pictures, adding the target pictures into the target picture splicing template, and closing the original pictures; S6, utilizing masking to set picture layers of the target pictures in the target picture splicing template to enable the target pictures to be displayed in different areas of the target picture splicing template in a layered manner. By the method and the device, automatic picture splicing and automatic storing of pictures after being spliced can be realized; the method is simple in operation, so that efficiency in picture splicing is improved.

The invention discloses a separating wallboard for building construction. The separating wallboard for building construction comprises a wall and a fixing base. A first protruding block is arranged on one side of the wall, and a first groove corresponding to the first protruding block is formed in the other side of the wall. The walls can be assembled together through the first protruding blocks and the first grooves and fixed through the fixing bases. Rotating handles are rotated to drive screws to rotate, so that the wall is clamped through movable plates and fixed plates, the wall is fixed, and the wall is conveniently assembled, dismounted and mounted and can be repeatedly used. A water valve is opened, water is sprayed from four spraying openings through a water pipe, dust suppression by spraying is conducted on a construction site through the four spraying openings, the concentration of dust is reduced, and the physical health of constructors is guaranteed. Noise of the construction site is reduced through noise reduction sponge laid on the wall and noise reduction grooves, so that the influence of the noise on nearby residents is reduced. Turn-on and turn-off of eight symmetrical warning lamps on the wall are controlled through an external control switch, so that passing vehicles and people are warned, and the life safety of people is guaranteed.

The invention relates to an achilles tendon stitching instrument. The achilles tendon stitching instrument comprises a first bracket, a second bracket, a tightness adjusting device, a first guide sleeve, a second guide sleeve, a first positioning tube and a second positioning tube, wherein the first bracket and the second bracket are connected through the tightness adjusting device, a first positioning hole, a first guide hole, a second positioning hole and a second guide hole are respectively formed in the inner and outer arms of the U-shaped arms of the first bracket and the second bracket, the first guide sleeve is fixed through the first positioning hole, one end of the first guide sleeve is matched with the first guide hole, and one end of the first positioning tube penetrates into the interior of the first guide sleeve; the second guide sleeve is fixed through the second positioning hole, one end of the second guide sleeve is matched with the second guide hole, one end of the second positioning tube penetrates into the interior of the second guide sleeve, and through holes matched with an achilles tendon stitching needle are formed in the first positioning tube and the second positioning tube. With the adoption of the achilles tendon stitching instrument, the operation procedures are simplified, and ideal stitching effect is guaranteed.

The invention discloses an image splicing method based on projection geometry and SIFT characteristic matching point pairs. According to the method, firstly, two images with overlapping areas are captured, SIFT characteristic points are extracted from to-be-spliced images, characteristic point matching is carried out through the K-D tree search algorithm, the RANSAC algorithm is further utilized to carry out characteristic point purification to eliminate wrong matching point pairs, a transformation matrix is calculated if the number of characteristic matching point pairs after purification isgreater than 8, if the number of characteristic matching point pairs after the purification is less than 8, the corresponding number of projection matching point pairs are extracted according to the known overlapping areas of the two images to complete the 8 pairs of matching points, a transformation matrix is calculated, image registering is completed, image fusion is carried out through employing the multi-resolution analysis method for the images after registering, and lastly, the spliced image is outputted. The method is advantaged in that a problem of image registration failure due to thefewer pairs of characteristic matching points can be solved through image splicing, and the image splicing effect is excellent.

The invention provides an optical path adjusting unit and a display device. The optical path adjusting unit, for adjusting light rays from different directions to transmit in approximately the same direction, comprises a light converging part, a reflective part and a light scattering part. The light converging part and the light scattering part form a hollow space, and the reflective part is disposed within the hollow space and connected to the middle of the light converging part and the middle of the light scattering part to divide the hollow space into two parts. The light converging part is used to converge the light rays from different directions; the reflective part is used to reflect the converged light rays onto the light scattering part, and the light scattering part is used to transmit the light rays reflected thereon by the reflective part out in approximately the same direction.

The invention relates to the field of video processing, and discloses an adjusting method and an adjusting device for a video splicing camera. According to the adjusting method and the adjusting device, N*M cameras for video splicing are prearranged, wherein N and M are positive integers and furthermore N is larger than 1. The adjusting method comprises the following steps of acquiring N*M pictures which are photographed by the N*M cameras for video splicing; through performing picture analysis on the acquired N*M pictures, determining whether the photographed pictures satisfy a preset splicing condition; and if the determining result represents a fact that the photographed pictures do not satisfy the preset splicing condition, acquiring photographing parameter adjustment reference information of the cameras which photograph the pictures that do not satisfy the preset splicing condition based on image analysis technology. The adjusting method and the adjusting device can realize automatic adjustment on the splicing cameras or facilitate debugging personnel for realizing quick and effective mounting debugging of the cameras, thereby obtaining high-quality spliced video images.

The invention discloses a metal capacitor which comprises insert finger capacitors of an odd layer and an even layer, wherein the upper part and the lower part of the odd layer comprise transverse routes and a plurality of insert fingers respectively, and the plurality of insert fingers are staggered up and down; the upper part and the lower part of the even layer comprises transverse connection routes and the plurality of insert fingers respectively, the plurality of insert fingers are staggered up and down, and continuous snake-shaped routes are also arranged between the insert fingers staggered up and down; the snake-shaped routes are positioned between the insert fingers; each of the two ends of each snake-shaped route is connected with a vertical connection line; the insert fingers of the even layer and the corresponding insert fingers of the odd layer are shifted for a unit leftwards or rightwards; and the snake-shaped routes of the even layer and the corresponding snake-shaped routes of the odd layer are shifted for a unit leftwards or rightwards. By a metal parasitic capacitance effect, the stacking area of adjacent metal layers is enlarged, a capacitor as large as possible can be obtained in a limited area, and the unit area metal capacitor is effectively expanded.

The invention provides a manufacturing method of a diamond-shaped bamboo and wood composite floor. A raw material is prepared by hot-pressing compounding of pure-natural bamboo wood materials, a panel (or a bottom board) adopts a heavy carbonized board or a carbonized side-pressing bamboo board, and a blank board is in an arrangement structure on which thin bamboo curtains (or thin bamboo mats) are compounded with wood pieces alternatively and grains are longitudinally and horizontally staggered, and is 8-layered or 12-layered in total. The modeling characteristics are as follows: a planar diamond is taken as a base unit, the lengths of all edges are from 150mm to 850mm, the corresponding angles are respectively 60 degrees and 120 degrees, tenons or tenon grooves are arranged on the side surfaces of the four edges, the whole surface layer is coated by moistureproof and wear-resistant paint, large-area and rich patterns are combined, not only the stressing is even and the deformation is less, but also the texture is soft.

A wafer front-end conveying system comprises a loading table and a defect detection module, and the defect detection module is used for detecting defects of a wafer and aligning the wafer before the wafer enters an equipment end and comprises a wafer carrying table used for fixing the wafer needing defect detection; an image acquisition module which comprises a camera array, and obtains a first detection image corresponding to the whole surface of the wafer on the wafer carrying table through one-time shooting of the camera array or obtains a circle of alignment detection image corresponding to the edge of the wafer through one-time shooting of the camera array; a defect judging module which is used for judging whether defects exist on the surface of the wafer or not according to the firstdetection image obtained by the image obtaining module; and an alignment module which is used for obtaining the position of the wafer on the wafer carrying table according to the position of the notch in the alignment detection image. The wafer front-end conveying system has both the functions of defect detection and alignment.

The invention belongs to the technical field of sewing equipment and relates to a continuous sewing and steam-ironing device. The continuous sewing and steam-ironing device is composed of two cloth roll supports, a cloth combination device, an automatic sewing machine, an atomizing device, a hot-pressing roller, a cooler, a tension roller and a cloth wind-up roll which are arranged in sequence, wherein the cloth combination device is composed of three transmission rollers which are arranged into a shape like the Chinese character 'pin', the atomizing device comprises a water tank and a nozzle, the cooler comprises a hollow steel plate and an air feeder, and an air outlet of the air feeder is communicated with the hollow steel plate through an air pipeline. By the adoption of the continuous sewing and steam-ironing device, continuous cloth can be well sewn and ironed, the whole process is automatic, errors caused by manual operation are avoided, and industrialization is facilitated.

The invention relates to an image feature matching method and device which combine SURF and ORB. The method comprises the following steps of: inputting a first image and a second image; detecting feature points with scale invariance in the first image and the second image by SURF respectively; describing the feature points in the first image and the second image respectively by an ORB feature descriptor; completing an initial match according to a Hamming distance and a cosine similarity between a descriptor of the feature point in the first image and a descriptor of the feature point in the second image; eliminating mismatch in the initial match according to a PROSAC algorithm; generating a matching relationship of feature points in the first image and the second image. It can effectivelyimprove the accuracy and speed of image feature matching, while reducing the rate of mismatch.

The invention discloses a formation method for single-side suture line stitch of a three-dimensional composite material prefabricating component. According to the formation method, a line guiding mechanism, a line hooking mechanism and a line picking mechanism are precisely matched to move to obtain the single-side suture line stitch based on time. The formation method mainly comprises four steps: 1, forming a line ring; 2: returning the line ring by hooking; 3, locking the line ring; and 4, cycling operations, wherein suturing works in steps 1 to 3 are repeated, and a reciprocating cycling movement under design cycles is carried out, so that the single-side suture line stitch can be formed. The formation method for the single-side suture line stitch has the characteristics of being simple in technology, good in suturing effect, flexible in operation, and high in adaptability and the like; and a spinning three-dimensional composite material prefabricating component product in shape of complex suturing space is high in interlaminar fracture toughness, and high in fatigue strength.

The invention discloses a sewage filtration device convenient to mount and clear. The device comprises a first mounting rack, filter nets, a first mounting rod, a splicing groove, first mounting rotating shafts and fixing plates, wherein the filter nets are mounted at the upper part and the lower part of the first mounting rack, the splicing groove is formed in one side of the first mounting rod,and each fixing plate is welded on one side of each of the first mounting rotating shaft. The sewage filtration device is scientific and reasonable in structure and safe and convenient to use; a grating and the filter nets are arranged, large-size solid wastes in sewage are cleared by the grating, part of small-size solid wastes in the sewage are cleared by the filter nets, and following sewage treatment is facilitated; second mounting rotating shafts and a power rotating shaft are arranged, the second mounting rotating shafts and the first mounting rack can be effectively driven to rotate through the power rotating shaft, one filter net with excessive solid wastes attached to the surfaces is rotated to the upper part, clearing of the solid wastes is facilitated, and besides, the other filter net can continuously have a function of filtering the small-size solid wastes.

The invention provides a mosaic processing method of a 2D picture. The method is characterized by comprising the following steps that a) an original picture is pre-cut, and the pre-cut picture is divided into color blocks; b) a primary color building block closest to each color block is searched, and an building-block effect of the picture is optimized; and c) the closest primary color building blocks are used to carry out color filling on the corresponding color blocks, and a modularized mosaic picture is obtained. Compared with the prior art, the method of the invention has the advantages that The picture processing method is simplified, fewer building block colors are used to form the modularized mosaic picture, a visual effect closer to the original picture can be obtained when the picture is observed from a position far away, splicing can be completed via building blocks of fewer colors, and the production cost is reduced effectively.

The present invention provides a display panel based on flexible organic light-emitting diode (OLED,) including a flexible substrate, an organic light-emitting layer and a thin-film packaging layer are arranged on the flexible substrate sequentially, a first splicing portion is formed on the first side of the flexible substrate by thinning process, a second splicing portion is formed on the second side of the flexible substrate by thinning process, a drive circuit and a control chip are arranged on a part of surface of the first splicing portion, the organic light-emitting layer extends to cover the second splicing portion. The present invention further provides a seamless splicing display device and a method for manufacturing the same.

The invention discloses a sandy saline and alkaline land soil remediation device. The sandy saline and alkaline land soil remediation device comprises a water storage sponge, a bottom plate, a water suction sponge, a shell and a top plate. A separation plate is arranged at the top end in the shell, and a plurality of mounting holes are evenly formed in the separation plate and the bottom of the shell at equal intervals. According to the sandy saline and alkaline land soil remediation device, the water suction sponge is arranged at the position, between an upper pressing plate and a lower pressing plate, in the shell, the water storage sponge is arranged at the position, above the separation plate in the shell, plants are planted on soil above the shell, the water suction sponge can be utilized for absorbing and draining underground water on the deep layer of the soil, it is avoided that underground water where salt is dissolved rises to the surface of the soil through the capillary action to evaporate to form saline and alkaline land, rainwater permeating into the shell can be collected, the interior of the shell and a drainage can be collected, and the service life of the device is prolonged. The wettability of the soil is improved through the water storage sponge arranged above the separation plate, growth of the planting is convenient, the soil on the upper layer is managedand remediated, and therefore the effect and efficiency of saline and alkaline land management are improved.

The invention discloses an adjustment method of splicing type scanning imaging equipment and the splicing type scanning imaging equipment. The adjustment method includes the following steps: controlling all scanning imaging devices in the splicing type scanning imaging equipment to output alignment images; shooting a splicing image formed by all the alignment images by using a shooting device, anddetecting whether a splicing defect of the splicing image is greater than a preset value; when the splicing defect is greater than the preset value, determining a corresponding adjustment signal; andadjusting the scanning imaging devices according to the adjustment signal to ensure that the splicing defect is less than the preset value. According to the technical scheme disclosed by the invention, in the case that the splicing defect of the splicing image formed by all the alignment images is less than the preset value, the splicing defect of the splicing image output by the splicing type scanning imaging equipment during normal operation is less than the preset value, that is, an image with a good splicing effect is output, and thus the time and effort that a user needs to spend can bereduced.

The invention provides an unmanned aerial vehicle image splicing method based on grid optimization and global similarity constraint. The unmanned aerial vehicle image splicing method specifically comprises the steps of extracting feature points of a reference image I and a target image I'and the corresponding relation of the feature points through an SIFT feature point extraction algorithm; meshing the reference image and the target image; solving a local homography matrix of the reference image and the target image after meshing by adopting a local DLT method; performing grid optimization byusing a minimized energy function to align the gridded target image with the reference image so as to eliminate ghosting of an overlapping region and obtain a preliminary spliced image; taking the ground as a landmark, and performing global similar coplanar constraint on the preliminary spliced image to eliminate projection distortion of a non-overlapping part to obtain a final spliced image. Thebeneficial effects of the invention are that the method can achieve the better matching of the features of the images of the unmanned plane through combining the features of the images photographed bythe unmanned plane, achieves the precise registration, and achieves an ideal splicing effect.

An image processing method, a drone, a ground console and an image processing system thereof are provided. The image processing method comprises: receiving the special effect shooting control information sent by the ground console; determining the shooting position interval according to the target flight trajectory included in the special effect shooting control information In the shooting posture, the shooting position interval of the non-curved portion of the target flight trajectory is the same, the shooting position interval of the curved portion of the target flight trajectory is smallerthan the shooting position interval of the non-curved portion, the shooting attitude is toward the target photographic subject; and the drone is controlled according to the target flight trajectory Flying, and controlling the camera to shoot the target subject according to the shooting position interval and the shooting attitude to obtain a captured image set; sending the captured image set to theground console, so that the ground console can perform at least part of the captured image in the captured image set. Splicing to generate special effects images. The image processing method can automatically generate a special effect image according to the image set captured by the drone, thereby improving the efficiency of generating the special effect image.

The invention provides a pin abutting seat for a surgical staple. The pin abutting seat comprises a seat body, wherein a head portion of the seat body is connected with a cover of the pin abutting seat in the surgical staple, one end, opposite to the cover of the pin abutting seat, of the seat body is provided with a plurality of screw slots, each two screw slots forms one group, and the two screw slots in one group are symmetrical. The pin abutting seat is characterized in that each screw slot is in an isosceles trapezoid shape, short straight sides of the screw slots in each group are close, two side walls in the inclined side directions of the screw slots are inclined towards to bottoms in the slots along the straight side directions, and the side walls, from the inclined side direction to two straight side directions, of the bottoms of the screw slots are expanded to form arc surfaces. Forming surfaces of the screw slots are designed into specific arc shapes, so that the screw slots have a direction self-guidance property; during a percussion titanium screw forming process, the phenomenon that a B shape produced by irregular motion of screw clamps in the screw slots is not in the same plane is avoided, and good seaming effects of operations are achieved.

The invention discloses an easily-assembled environment-friendly moisture-proof flame-resistant wear-resisting splice type floor. The floor comprises a base plate, wherein the base plate is horizontally arranged, an end face of one end of the base plate in the width direction is protrudingly provided with a plurality of protruding blocks in the length direction of the base plate, the protruding blocks are arranged at intervals in the width direction of the base plate, an end face of the other end of the base plate in the width direction is provided with a plurality of grooves corresponding to and cooperated with the protruding blocks in the length direction of the base plate, the grooves are arranged at intervals in the width direction of the base plate, the height of each protruding block is corresponding to the height of the base plate, and correspondingly, the grooves are arranged in a manner of penetrating the base plate in the height direction of the base plate; a moisture-proof layer, a flame-resistant layer and a wear-resisting layer which are successively coated on an upper surface of the base plate from inside to outside; and an antibacterial layer, an anti-static layer and an anti-corrosion layer which are successively coated on a lower surface of the base plate from inside to outside. The floor is convenient to assemble and splice with high assembly stability and good firmness, has good anti-corrosion, flame-resistant, anti-static and moisture-proof performance and good economic returns, and is simple in structure and long in service lifetime.