164results about How to "Eliminate seams" patented technology

A silicon dioxide-based dielectric layer is formed on a substrate surface by a sequential deposition / anneal technique. The deposited layer thickness is insufficient to prevent substantially complete penetration of annealing process agents into the layer and migration of water out of the layer. The dielectric layer is then annealed, ideally at a moderate temperature, to remove water and thereby fully densify the film. The deposition and anneal processes are then repeated until a desired dielectric film thickness is achieved.

A silicon dioxide-based dielectric layer is formed on a substrate surface by a sequential deposition / anneal technique. The deposited layer thickness is insufficient to prevent substantially complete penetration of annealing process agents into the layer and migration of water out of the layer. The dielectric layer is then annealed, ideally at a moderate temperature, to remove water and thereby fully densify the film. The deposition and anneal processes are then repeated until a desired dielectric film thickness is achieved.

The invention discloses a splicing device for a real-time high speed high definition panoramic video and a method thereof. The method comprises the steps: S10, obtaining spliced multipath real-time video sequences; S20, judging whether video images at the same moment in any two paths of video sequences meet the image splicing condition; S30, calculating an image splicing parameter; S40, selecting a projection face and mapping the video images in the multipath real-time video sequences to the same mapping face according to the splicing parameter, then determining the panoramic projection face; S50, establishing a mapping table of pixel points on the video images and coordinate points of the overall projection face; S60, conducting exposure and fusion processing on pixel values of all the coordinate points on the panoramic projection face and outputting the panoramic video images according to the pixel values. The splicing device for the real-time high speed high definition panoramic video and the method of the splicing device can greatly improve splicing efficiency of the images, ensure output quality of the images, and meet the requirement for real-time high speed high definition panoramic video.

The invention relates to an image splicing method based on improved image fusion. The method mainly settles technical problems of low real-time performance, splicing seam and ghost in prior art. The method comprises the steps of respectively performing characteristic point extraction on a target image and a reference image by means of an A-KAZE algorithm, and establishing a characteristic description subset; constructing a KD-tree, establishing a characteristic point data index, matching the characteristic point by means of a bidirectional KNN matching algorithm, obtaining an initial matching result, performing external point elimination and internal point reserving on the initial matching result through a RANSAC algorithm, and finishing image registering; and performing image fusion by means of an improved Laplace multi-resolution fusion algorithm based on a splicing seam, wherein the step comprises an optimal splicing seam by means of dynamic planning method, limiting a fusion range according to the optimal splicing seam, and finally performing fusion by means the Laplace multi-resolution fusion algorithm in a fusion range, thereby finishing image splicing. The image splicing method settles the problems in a relatively good manner and can be used in image splicing.

A method for eliminating a seam between adjoined screens includes step A: acquiring an original image and adapting the acquired image to an image translation in subsequent step B; step B: translating the acquired image toward the position of the seam; and step C: reverting the translated image to the original one. An apparatus for eliminating a seam between adjoined screens includes an image acquisition module, an image translation module and an image reversion module. The image acquisition module is configured for acquiring an original image and transmitting the acquired image to the image translation module. The image translation module is configured for translating the received image toward the position of the seam so as to cover the seam by the translated image. The image reversion module is configured for receiving the translated image from the image translation module and reverting the image to the original one.

The invention relates to the technical fields of image processing and video processing and provides a multi-scale cylindrical projection panorama image generating method for video monitoring. The method comprises the following steps: intercepting a preset overlapping region of a to-be-spliced image, thereby acquiring a cylindrical projection image; establishing sub-images of the image under various scales, searching feature points by adopting an improved Harris method, and solving feature vectors under the scales; searching the matched feature point pairs, filtering, solving the optimized homography matrix, coordinates of the splicing joints and the actual overlapping region of to-be-spliced images; and adjusting the chroma so as to eliminate the splicing joints, thereby obtaining the final panorama image. The method disclosed by the invention has the great advantages that the image edge distortion caused by the shooting angle of a camera is eliminated, the processing speed and the algorithm stability are improved by adopting a mode of presetting the overlapping region, the solved matching points are filtered, the image color difference is adjusted by adopting a gradual coefficient adjustment mode, and the final joint-free panorama image with consistent chroma is formed.

The invention relates to an image processing method, a device and a system based on a background splicing wall. The method comprises the steps of recognizing the background splicing wall in photographed images; and processing the background splicing wall in the photographed images and eliminating the splicing joints of the background splicing wall in the photographed images. By adopting the technical scheme, since the display edge of the splicing wall in the images photographed by a camera is recognized and the splicing wall in the photographed images is processed to eliminate the splicing joints of the splicing wall in the photographed images, not only can the splicing joints of displayed and output pictures be effectively eliminated, but also no processing is required to be conducted to the splicing display wall, the hardware cost is not increased, the consistency of the images at different observation points can be realized and the limits caused by the change of the visual angles of the camera can be avoided.

The invention relates to an image stitching method in a panoramic surround-view system, and relates to the field of computer vision. The method includes the steps of 1) correcting the fisheye image distortion by combining a spaced line training model and a SVM algorithm; 2) establishing an image overlook transformation look-up table to achieve a quick overlook transformation and obtaining a bird's-eye view; 3) generating a panoramic image stitching mapping table, and quickly obtaining a panoramic surround-view bird's-eye view by looking up the panoramic image stitching mapping table; and 4) solving the brightness difference between every two stitched images by using an improved brightness tuning processing algorithm, and then further eliminating stitching seams by using an image fusion method of a weighted average method. The method of the invention effectively reduces the system overhead, quickly achieves the seamless image stitching, and obtains the panoramic surround-view bird's-eye view.

The embodiment of the invention provides a splicing display panel and a display device, and relates to the technical field of display. Splicing seams of the splicing display panel are eliminated, andbad influences of the splicing seams on display are avoided. The splicing display panel comprises at least two spliced flexible display substrates, and each flexible display substrate comprises a picture display area and a picture non-display area which is around the picture display area; each flexible display substrate further comprises a flat area and a bending area, wherein the bending area isbent in the direction opposite to the light emitting direction, and the bending area comprises part of the picture display area and part of the picture non-display area; the bending areas of two adjacent flexible display substrates are spliced, and the portions, in the bending areas, of the picture display areas are located on the side, in the light emitting direction, of the splicing seam of thecorresponding two bending areas. The splicing display panel is used for achieving picture display.

The invention discloses a method and device for eliminating splicing seams among spliced display screens, and a spliced display system. The method comprises the following steps of: dividing a preset number of blocks of zoned areas in an image display area of the spliced display screens according to a preset dividing mode, wherein the sum of the preset number of blocks of zoned areas is equal to the area of a frame among the spliced display screens; dividing an image display period into M sub-periods; in the M sub-periods, displaying an image in an image display area or a zoned area corresponding to the sub-periods according to a preset image display mode; and moving each spliced display screen according to a preset moving mode corresponding to the sub-periods so as to overlap the moved zoned area with the position of the frame to be covered corresponding to an unmoved state. By using the technical scheme of the invention, images displayed in different areas can be displayed on the spliced display screens at the same time without frames, so that the splicing seams among the spliced display screens are eliminated and high-quality seamless splicing display is realized.

A door structure utilizing a first skin having a surface. The first skin also includes an aperture through the same. A second skin is similarly constructed to the first skin such that the aperture of the second skin aligns at least partially with the aperture of the first skin. A panel is sandwiched between the first and second skin surfaces by first and second adhesive layers, respectively. The panel is positioned to at least partially occlude the apertures of the first and second skins.

The invention provides a seamless splicing display device of an LCD. The device comprises an LCD panel with collimated beam illumination, a diffusion lens and a screen. According to the direction of a light path, the seamless splicing display device of the LCD is provided with the LCD panel with the collimated beam illumination, the diffusion lens and the screen sequentially, or provided with the diffusion lens with the collimated beam illumination, the LCD panel and the screen sequentially, wherein the collimated beam vertically enters the LCD panel or the diffusion lens by incidence. The display device is simple in structure and convenient for installation and can simply, conveniently and effectively eliminate the splicing seams generated when splicing LCD panels.

The invention relates to the field of a large-screen display device, in particular to a device for eliminating a joint seam of a rear projector splicing wall. The rear projector splicing wall comprises a plurality of splicing wall units, wherein a joint seam is respectively formed between every two adjacent splicing wall units, the joint seam is provided with a light emitting diode (LED) lamp and an LED lamp display control device, and the LED lamp is connected with the LED lamp display control device. The joint seam of the rear projector splicing wall is provided with the LED lamp, so that the light transmitted from the LED lamp passes through the joint seam to be displayed, the problem of the black edge of the joint seam of the rear projector splicing wall can be effectively solved, the all-day display effect of the splicing wall can be greatly improved, and the display effect is remarkable; and moreover, the LED lamp display control device reads pixels on the edges of the splicing wall units, and the pixels on the edges read are displayed by controlling the LED lamp, so that the image display continuity is good, and the phenomenon that the image is split suddenly can be avoided.

The invention relates to a geocoding-free rapid image splicing method of a low-altitude unmanned plane. A key frame image is extracted from a video to carry out geocoding-free rapid image splicing to generate a panoramic image. The method comprises the following steps: extracting a key frame image from a video stream to obtain all to-be-spliced images; carrying out feature point extraction including establishing a multi-dimensional space unit, constructing a pyramid image, determining a key point position, and removing an unstable point on all to-be-spliced images and carrying out screening on the key point by using a SUSAN algorithm to obtain a final feature point; carrying out feature matching according to respective feature points of a corresponding reference image and a to-be-matched image; and carrying out smoothening on the to-be-spliced images by using a gain compensation method, carrying out weighted average fusion on spliced overlapped areas to eliminate seams and sawteeth, and carrying out splicing to generate a panoramic image. According to the technical scheme, the method can be applied to fields of emergency surveying and mapping, disaster prevention and mitigation, land monitoring, emergency monitoring, pipeline layout and inspection of the oil sector, and circuit layout and power line inspection of the power sector and the like.

The invention relates to the technical field of LCD (liquid crystal display), and particularly discloses an LCD seamless splicing system. The system comprises an LCD panel, an optical system and a receiving screen, wherein multiple rectangular areas are arranged on the edge of an image display area of the LCD panel; the length and width of each rectangular area are greater than the width of the border of the LCD panel; the optical system enables each rectangular area to obtain light spots with uniform illumination and to deviate according to the predetermined direction and position to cover the border of the LCD panel; and the receiving screen enables the pixels in the middle and pixels on the edge of the image display area of the LCD panel to be connected so as to completely display the image. According to the invention, the edge of the image display area of the LCD panel is divided into multiple rectangular areas, and an optical system at the edge is designed accordingly so that the border of the LCD panel is covered by lights; and due to the matched receiving screen structure, the image is completely displayed, and LCD splicing seams can be effectively eliminated.

The invention relates to a mosaic display technology, in particular to a device for eliminating joints of a mosaic display screen. The device comprises mosaic units, wherein the surface of each mosaic unit is provided with an optical film layer which is used for enlarging the light-emitting area of edge pixels to cover a frame zone connected with the edge pixels. The device has the advantages that the filling rate of the edge pixels is adjusted by the optical film layer, and the light covers the frame zone connected with the edge pixels, so that the seamless splicing of the mosaic units is realized.

The invention relates to a dual-frequency identification sonar image sequence splicing method which comprises the steps of removing noise of sonar images and increasing the contrast ratio of the sonar images by preprocessing the sonar images; improving accuracy in detection on feature points of the sonar images by means of double detection on the feature points; improving matching accuracy of feature point pairs by means of double check on the feature point pairs; splicing a sonar image sequence by means of solving of a sequence image homography matrix; image fusion: regulating brightness of the images to be spliced by means of a histogram normalized algorithm and performing seamless splicing on the sonar images by means of a boundary-retained weighting smoothing algorithm. The dual-frequency identification sonar image sequence splicing method can solve the problem of low resolution ratio of the sonar image and small visual angle of a detection range during water monitoring of DIDSON. By means of sonar image sequence splicing, a series of sonar images are spliced to the sonar image high in resolution ratio and large in range, and the DIDSON can monitor a large range of water environment.

The invention relates to an automatic straightening image stitching method, which mainly solves the technical problem of oblique and twisted phenomena existing in the prior art by the technical scheme which includes the steps of extracting feature points from a target image and a reference image by using an A-KAZE algorithm; matching the feature points to complete image registration; performing image fusion using a fusion algorithm to obtain a fused image; and automatically straightening the fused image, including: recording four vertex coordinates of the upper left, the lower left, the upper right and the lower right of the fused image; setting the four vertex coordinates after straightening, keeping the vertex coordinates of the upper left and the lower left unchanged, letting the upper right and lower right coordinates be (X,a.y) and (X,b.y) respectively, X being the length of a panorama after straightening, and letting X=MAX (c.x,d.x)-a.x; and establishing an equation set to calculate a transformation matrix XM, applying the transformation matrix XM to the fused image and performing bilinear interpolation of the fused image to complete the image straightening. The method of the invention better solves the problem and can be used for image stitching.

The invention discloses a frame-free display device and a joint-free large-screen splicing display system, and relates to the technical field of large-screen splicing display. The frame-free display device comprises a display screen with a frame, and the display area of the display screen includes a central area and fringe areas between the central area and the frame. An optical transparent panel covers in front of a central-area watching surface, and eccentric linear Fresnel lenses cover in the front of fringe-area watching surfaces. The Fresnel center line of each eccentric linear Fresnel lens is near to one side of the central area. The eccentric linear Fresnel lenses used for amplifying the fringe areas are arranged in front of the fringe areas of the display screen with the frame, and the amplified fringe areas are larger than or equal to the frame and completely cover the frame, so that the frame of the display device is eliminated visually.

The invention provides a display device and a spliced screen, which belongs to the field of display equipment. The display device comprises a liquid crystal display screen, a lamp panel and a printedcircuit board, wherein the lamp panel comprises a flexible circuit board and a plurality of light-emitting diodes, the flexible circuit board comprises a first part and a second part which are connected, the plurality of light emitting diodes are positioned on the first part, the first part is positioned on the edge of the front surface of the liquid crystal display screen, the second part extendsto the back surface of the liquid crystal display screen from the outside of the liquid crystal display screen, the printed circuit board is positioned on the back surface, and the second part is detachably inserted into the printed circuit board. Due to the fact that the first part is located on the edge of the front surface of the liquid crystal display screen, pictures displayed by the multiple light-emitting diodes can shield the edge region of the liquid crystal display screen, splicing seams can be reduced or even eliminated when a plurality of the display devices are spliced into a spliced screen, and therefore the visual effect is improved.

The invention relates to the field of display screens, in particular to a display device. The display device comprises a displayer provided with a display surface and a frame. An optical microlens array including a plurality of microlenses is arranged above the displayer. Light rays emitted from the displayer are irradiated into the optical microlens array from positions near to focal plane positions of the microlenses in the optical microlens array. A scattering screen is arranged above the optical microlens array. The display device has the advantages that the optical microlens array and the scattering screen are arranged on the surface of the displayer additionally, and image information from the displayer are shifted and amplified and can cover the frame of the displayer to shield the frame of the displayer, so that splicing seams among splicing units can be eliminated completely when the display device is applied to a spliced display screen, seamless splicing is achieved, and display images are complete, continuous and free from split sensation; on the basis of the scattering effect of the scattering screen, the complete and continuous image information can be still viewed and does not distorted when being viewed from wide angles.

The invention discloses a digital X-ray image splicing method and system. The digital X-ray image splicing method comprises steps that a first detector and a second detector are arranged in a radiation vision field scope of a same beamer, plane distances from a bulb focus of the beamer to the first detector and the second detector are identical, an overlapping region X is arranged between the first detector and the second detector with intervals; a digital X-ray shooting system starts for exposure for one time, a first DR image of a focus portion is generated on the first detector, and a second DR image of the focus portion is generated on the second detector; the overlapping region X is cut from the second DR image to acquire a third DR image; the first DR image and the third DR image are spliced to acquire a fourth DR image; gray fusion for the splicing region is carried out to eliminate a splicing seam to acquire an image O; the image O is displayed. The method is advantaged in that the spliced image can be acquired through one-time exposure, and thereby a radiation dose and the patient positioning time can be greatly reduced.

Disclosed is a system and method for patterning internal and / or external doubly-curved surfaces by use of a light source, three-dimensional scanning optics, computer controller, and a multi-axis robot. The system is capable of digitally receiving shape, location, and pattern data of a three-dimensional doubly-curved surface and applying said pattern over large areas with high precision in a seamless fashion.

The invention belongs to the field of unmanned aerial vehicle remote-sensing image processing, relates to an unmanned aerial vehicle image filtering frequency division jointing method and is mainly to solve the problems that the phenomenon of ghost and joint crack appears easily in the unmanned aerial vehicle image jointing process. The method is characterized by, to begin with, decomposing a unmanned aerial vehicle image pair to be jointed into a low-frequency image pair and a high-frequency image pair through Gaussian low-pass filtering; then, carrying out jointing processing on the low-frequency image pair through a weighted smooth fusion method, and searching an optimal jointing line through an improved dynamic programming algorithm to finish high-frequency image jointing; and finally, carrying out linear synthesis on the jointed low-frequency image pair and the high-frequency image pair to obtain a final joint image. The method can solve the problem of ghost phenomenon in the unmanned aerial vehicle image jointing process and prevent the appearance of the joint crack to the largest degree, and can achieve a good jointing effect for the unmanned aerial vehicle images, which are obvious in luminance difference.

The invention provides a method and a device for eliminating splicing seams of a splicing wall as well as an image system based on the splicing wall. The method comprises the following steps: distinguishing a background splicing wall in a shot image; processing the shot image, and eliminating the splicing seams of the splicing wall in the shot image. According to the technical scheme of the invention, show edges of the splicing wall can be distinguished in the image shot by a camera, and the splicing wall in the shot image can be processed to eliminate the splicing seams of the splicing wall in the shot image, thus the splicing seams of a picture output by the display can be effectively eliminated, but the splicing display wall does not need to be processed, the hardware cost can not be increased, and the consistency of pictures with different viewpoints can be realized without the restriction of the viewing angle changes of the camera.

The invention relates to a manufacturing method for a large-dimension diffraction grating and an exposure device thereof. The exposure device comprises two stages of micro modules and a zero-order suppression phase grating; the first-stage micro module is a 4F imaging system and the second-stage micro module is a double-telecentric micro projection interferometric imaging system; the second-stage micro module has a micro multiple larger than that of the first-stage micro module; and an imaging plane of the first-stage micro module forms an input plane of the second-stage micro module; and an output plane of the second-stage micro module forms a recording plane during exposure imaging. The first-stage micro module includes a first Fourier transform lens or lens set and a second Fourier transform lens or lens set. Besides, the zero-order suppression phase grating is arranged between the first Fourier transform lens or lens set and the second Fourier transform lens or lens set. When a stripe position in exposed spot needs to be adjusted, the zero-order suppression phase grating is translated along the direction perpendicular to the grid line, thereby realizing changing of the stripe position in the spot.