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35 results about "Black edge" patented technology

Video shake processing method and apparatus, and electronic device and computer-readable storage medium

PCT designated stageWO2026000916A1Computer graphics (images)Engineering
Provided in the present application are a video shake processing method and apparatus, and an electronic device and a computer-readable storage medium. The method comprises: acquiring a video to be processed, and determining a shake compensation matrix for each original image frame in the video to be processed; on the basis of the shake compensation matrix for the original image, performing compensation processing on the original image to obtain a compensated image and vertex information of the compensated image; on the basis of the vertex information, determining a bounding box of the compensated image, wherein two adjacent edges of the bounding box are respectively parallel to two coordinate axes of an image coordinate system of the original image; on the basis of boundary information of the original image and the compensated image, determining an image to be displayed, and on the basis of the bounding box, determining a region to be cropped in the image to be displayed; and on the basis of a corresponding region to be cropped, cropping each image frame to be displayed to obtain a video subjected to anti-shake processing. The present application can improve the flexibility and accuracy of black-border processing in a video anti-shake process.
Owner:UBTECH ROBOTICS CORP LTD

Dynamic adaptive video black edge real-time detection method based on multistage scanning

The invention discloses a dynamic self-adaptive video black edge real-time detection method based on multistage scanning, and relates to the technical field of image processing, and the method comprises the following specific steps: 1, inputting a video frame, and selecting 28 detection regions in the video frame according to the requirements of four-corner region positioning, edge center region center positioning and cross region positioning; 2, sparse sampling is carried out on the 28 detection areas one by one, whether the detection areas are black areas or not is judged according to sampling results, if yes, the step 3 is executed, and if not, the detection areas are output; 3, preliminarily determining the orientation of the black edge of the video frame and the starting and ending positions of the black edge in the four-edge direction of the video frame; the method supports real-time updating of the position of the black edge, adapts to resolution switching, transverse and vertical screen change and picture cutting, realizes efficient and accurate black edge detection, and updates the detection result in real time. Meanwhile, the method supports a mainstream video format (RGB / YUV), and the false detection rate is lower.
Owner:NANJING DUOWEIXINLIAN TECH

Multi-feature fusion and adaptive optimization SIFT image splicing method and system

The application discloses a SIFT image splicing method and system based on multi-feature fusion and adaptive optimization, and comprises the following steps: performing data preprocessing on acquired image data to generate a gray image; constructing a scale space by using a SIFT feature extraction method, detecting local extreme points in the gray image to generate a descriptor, and performing SIFT feature matching optimization; performing false matching elimination by using a nearest neighbor ratio criterion and a matching threshold value, and maintaining the distribution balance of feature points in the gray image by using a uniform sampling method; performing random sample consensus estimation by using an adaptive threshold value in a feature matching point set, eliminating outliers, and calculating a homography matrix to realize image registration; and realizing image splicing in an overlapping area based on a weighted fusion strategy, avoiding the abruptness of a joint transition by combining a smoothing weight, and performing black edge trimming to optimize a splicing result. The application can optimize a traditional SIFT image splicing algorithm, and thus the splicing quality of an image can be improved.
Owner:CHANGCHUN NORMAL UNIV

Multi-feature fusion and adaptive optimization SIFT image splicing method and system

The invention discloses an SIFT image splicing method and system based on multi-feature fusion and adaptive optimization. The method comprises the steps of performing data preprocessing on acquired image data to generate a grayscale image; constructing a scale space by using an SIFT feature extraction method, detecting a local extreme point in the grayscale image to generate a descriptor, and performing SIFT feature matching optimization; carrying out mismatching elimination through a neighbor ratio criterion and a matching threshold value, and maintaining the distribution balance of feature points in the grayscale image in a uniform sampling mode; random sampling consistency estimation is carried out in the feature matching point set by using an adaptive threshold value, outer points are eliminated, a homography matrix is solved, and image registration is realized; and image splicing is realized in the overlapped region based on a weighted fusion strategy, joint transition abrupt is avoided in combination with a smooth weight, and black edge cutting is performed to optimize a splicing result. According to the method, a traditional SIFT image splicing algorithm can be optimized, so that the image splicing quality can be improved.
Owner:CHANGCHUN NORMAL UNIV

An adaptive flight aerial photography detection unmanned aerial vehicle with angle adjustment function

The application relates to the technical field of aerial unmanned planes, and discloses a self-adaptive flight aerial detection unmanned plane with an angle adjusting function, which is applied to an aerial unmanned plane body and comprises an adjusting mechanism, an elongation assembly, a subsidence assembly, an aerial shooting mechanism and a protection mechanism. The adjusting mechanism is installed below the aerial unmanned plane body and is used for adjusting a shooting angle. The adjusting mechanism comprises the elongation assembly and the subsidence assembly. The elongation assembly is installed below the adjusting mechanism and is used for moving a shooting position. The subsidence assembly is installed in the elongation assembly. The aerial shooting mechanism is installed on the subsidence assembly and is used for shooting and detection. The protection mechanism is installed on the adjusting mechanism and is used for protecting the stability of the aerial shooting mechanism during shooting. Through the technical scheme, the gimbal in the prior art has the problems of limitation and dead angle during shooting, is prone to interference with a boom and a foot stand, has black edge shielding and a visual blind area, and influences the shooting progress and shooting quality.
Owner:HUZHOU UNIVERSITY

A green-passing and rapid inspection method and system based on X-ray imaging technology

ActiveCN119991625BAvoid muddling throughaccurate checkImage analysisGeometric image transformationColor imageImaging processing
The application discloses a kind of green pass fast detection method and system based on X-ray imaging technology, belong to image processing technical field, obtain the X-ray imaging slice image of current vehicle in a period of time, and all slice images are spliced, obtain X-ray imaging original image;The X-ray imaging original image is vertically flipped, and the positive X-ray imaging original image is obtained;By image processing algorithm, the left and right black edges of the positive X-ray imaging original image are cut, and the vehicle original image is obtained;The upper blank area of the vehicle original image is cut, and the right white edge is cut by image processing algorithm, and the target vehicle image is obtained;Image stretching is carried out to the target vehicle image, and all pixel points in the stretched target vehicle image are clustered by clustering method, and the pixel points in different classes are mapped to different colors, and the pseudo-color image of vehicle is obtained.The high-speed traffic efficiency is improved, and the accuracy of green pass vehicle inspection is improved.
Owner:SHANDONG HOUDE MEASUREMENT & CONTROL TECH CO LTD

IMU (Inertial Measurement Unit)-based spherical video anti-shake image stabilization method

The invention provides an IMU (Inertial Measurement Unit)-based spherical video anti-shake image stabilization method. The method comprises the following steps: S1, obtaining an original video frame; s2, performing low-pass filtering smoothing on the IMU data; s3, calculating a rotation matrix according to the processed IMU data; s4, converting to a spherical surface; s5, cutting the rotated image, then judging whether the cut image has a black edge, and if the cut image does not have the black edge, converting the rotation quaternion into a rotation matrix; if the cut image has a black edge, reducing the rotation quaternion through a gradient descent method, then continuing to judge whether the rotated image has the black edge, if the rotated image still has the black edge, continuing to reduce the rotation quaternion until the black edge does not exist, and finally converting the rotation quaternion into a rotation matrix; s6, rotating the spherical surface; and S7, obtaining an anti-shake image. Distortion correction does not need to be carried out on distorted video frames, meanwhile, internal reference calibration does not need to be carried out on the camera, and a larger field angle can be reserved as much as possible for the video after image stabilization.
Owner:INGENIC SEMICON CO LTD

Method, device and equipment for checking the aesthetic quality of the field of view in front of a vehicle, and storage medium

The application relates to a vehicle front field of view aestheticity checking method, device, equipment and storage medium, the method comprises the following steps: a plurality of reference field of view curves with a preset length are obtained by extending a plurality of position points on a driver's eye ellipse, a front windshield glass black edge curve of the vehicle is taken as a guide curve, the reference field of view curves are combined, a plurality of front field of view visible surfaces on the eye ellipse are generated and superposed, a superposition surface of the front field of view visible surface is obtained, and the superposition surface is processed in a preset processing mode to obtain a front field of view envelope surface, so that the aestheticity of the front field of view is checked to obtain an aestheticity evaluation result. Therefore, the problems that the aestheticity of the front field of view of the vehicle cannot be checked in real time through a systematic checking method, the project development cycle is long, the cost is high and the like are solved, the design scheme is adjusted in time through CAD auxiliary checking, the problems of front field of view deviation or unattractive vehicle parts are avoided, and therefore the product development cycle is shortened and the design change cost is saved.
Owner:CHERY AUTOMOBILE CO LTD

Screen projection method and device, terminal equipment and computer readable storage medium

Embodiments of the present application disclose a screen projection method and device, a terminal device and a computer readable storage medium. The method is applied to a first terminal device, and the method comprises: obtaining a screen projection parameter corresponding to a second terminal device, wherein the screen projection parameter comprises a first resolution corresponding to a screen projection window of the second terminal device and a coding and decoding capability corresponding to the second terminal device; determining a target resolution which is proportional to the first resolution according to the screen projection parameter; and sending video stream data matched with the target resolution to the second terminal device, wherein the video stream data is used to play a screen projection picture in the screen projection window of the second terminal device. The screen projection method, device, terminal device and computer readable storage medium can ensure that the screen projection picture will not appear black edges or picture stretching and distortion when playing in the screen projection window, and improve the screen projection effect.
Owner:GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

HDMI (High Definition Multimedia Interface) video light synchronization method and device integrating black edge detection and HDR (High Dynamic Range) knee point compression

The invention discloses an HDMI video light synchronization method and device fusing black edge detection and HDR knee point compression, and relates to the technical field of video signal processing and intelligent lighting control. According to the method, black edges and subtitles in a video picture are detected, a mask is generated, and a color selection range is limited, so that samples are concentrated on a main picture; knee point compression parameters are determined in a self-adaptive mode, and the brightness level is kept; colors and brightness are counted according to position weights and distributed to all lamps, a unified frame reference is established, and time sequence calibration is completed; meanwhile, a selectable film watching friendly and stable mechanism is provided, and when the captions or the edges change obviously, color selection is converged, and the change of a near-caption lamp is restrained. The method has the technical effects that a color picking result focuses on a main body, subtitles and black edges do not cause color cast any more, lens switching transition is smooth, and group control switching is consistent; the system can be switched between impression priority and time delay priority according to needs, and the real-time synchronization effect without disturbing watching is achieved.
Owner:BWEETECH ELECTRONICS TECH (SHANGHAI) CO LTD

Dimming device and dimming structure

PCT designated stageWO2025138131A9Non-linear opticsThermal dilatationBlack edge
A dimming device and a dimming structure. The dimming device comprises a first substrate (11), a first adhesive layer (12), a dimming functional layer (13), a second adhesive layer (50) and a second substrate (41) which are sequentially stacked, and further comprises a rubber frame (20) arranged between the first substrate (11) and the second substrate (41) and surrounding the first adhesive layer (12), the dimming functional layer (13) and the second adhesive layer (50). The orders of magnitude of the thermal expansion coefficients of materials of the glue frame (20), the first adhesive layer (12) and the second adhesive layer (50) are all 10-4. The dimming device and the dimming structure can reduce or even avoid interface bubbles at the junction between the rubber frame (20) and the first adhesive layer (12) and the junction between the rubber frame (20) and the second adhesive layer (50), so that the step of printing black edges for masking can be omitted, and the problem of bubbles appearing in a display area is avoided.
Owner:BOE TECHNOLOGY GROUP CO LTD +2

Electronic equipment, peripheral device, terminal system and state detection method

The invention discloses electronic equipment, a peripheral device, a terminal system and a state detection method. The electronic equipment comprises a first machine body and an electric connector, the first machine body comprises a first frame and a display screen, the first frame surrounds the outer edge of the display screen, and the extension direction of the first frame is different from that of the display screen. The electric connector is located on the first frame, and the plurality of electrically connected first terminals are exposed out of the first frame, so that the electric connector can be separably butted with the peripheral device. Thus, the external device can be electrically connected with the electric connector in a forward or reverse installation mode, the electric connector is suitable for different application scenes, and the user experience is improved. Meanwhile, the electronic equipment does not need to be internally provided with the external device, the external device does not occupy space, and the requirements of full screen and narrow black edge of the electronic equipment can be met. According to the state detection method, the state of the peripheral device can be detected in real time, corresponding prompt information is provided for a user in time, and the peripheral device is prevented from being lost.
Owner:HONOR DEVICE CO LTD

Method, device and equipment for processing black edge after image stabilization based on multi-frame fusion and medium

The invention relates to the technical field of image processing, solves the problem that black edges cannot be effectively eliminated after image stabilization processing in the prior art, and provides a black edge processing method, device and equipment after image stabilization based on multi-frame fusion and a medium. The method comprises the following steps: correcting an initial image-stabilized video according to a camera jitter parameter to obtain an intermediate image-stabilized video; determining a black edge area of each image frame according to the intermediate image-stabilized video; performing information fusion extraction according to a plurality of adjacent image frames of one image frame to obtain black edge filling information; and filling the corresponding black edge area with the black edge filling information to obtain a target image-stabilized video. The method is suitable for various video processing application scenes, such as mobile phone video anti-shake, unmanned aerial vehicle aerial photography, monitoring video image stabilization and the like, and the final output quality and viewing experience of the image-stabilized video are improved.
Owner:NINGBO SIMSHINE INTELLIGENT TECH CO LTD

Black edge detection and removal method and device for remote sensing image and medium

The invention discloses a black edge detection and removal method and device for a remote sensing image, and a medium. The method comprises the following steps: carrying out strip division preprocessing on the remote sensing image; a multi-index parallel strategy is adopted to count the feature statistical value of each strip; using a bidirectional mutation detection algorithm to compare the characteristic statistical values of the adjacent strips, and obtaining a black edge suspected area; after structure verification is carried out on the suspected black-edge area, multi-scale strip fusion analysis is carried out to locate a black-edge area; and carrying out geometric characteristic constraint on the accurate positioning area, dividing a black edge area and carrying out labeling to generate a structured report. According to the method, various regular and incomplete black edges such as image edge strip-shaped black edges, center strip-shaped black edges and edge plane-shaped black edges can be detected, the defect that most of existing algorithms can only aim at one or two of the black edges is overcome, meanwhile, multi-sensor data adaptation is adopted, the method is suitable for various remote sensing data types, and the method is suitable for large-scale popularization and application. The limitation that a traditional quality inspection system is only suitable for a single sensor source is broken through.
Owner:ZHONGKE XINGTU DIGITAL EARTH HEFEI CO LTD

Three-dimensional space video seamless fusion method and system based on dynamic video material

The invention relates to the field of video processing technology and three-dimensional interaction application, in particular to a three-dimensional space video seamless fusion method and system based on dynamic video materials, and the method comprises the steps: preprocessing a video, and outputting original data which can provide decodable frame data and recognizable transparent regions; establishing a three-dimensional model of which the surface is a continuous and non-overlapping topological structure, and standardized UV coordinates for mapping video frame pixels and model surface points; according to the method, compressed frame data in original data are converted through a video decoding link, texture-material dynamic binding is performed based on real-time updating of memory address mapping, and a three-dimensional model and a video are seamlessly fused through Shader rendering. Through standardized preprocessing, precise UV mapping and Shader optimization, the problem of rigid fusion in the prior art is thoroughly solved, the edges of the video and the three-dimensional model are free of sawteeth and black edges, the color and the scene are kept consistent, and the transparent region is uniformly transited.
Owner:NO 703 RES INST OF CHINA SHIPBUILDING IND CORP

Screen content acquisition method and device, equipment and storage medium

The embodiment of the invention provides a screen content acquisition method and device, electronic equipment and a storage medium. The method comprises the following steps: determining a target adjustment mode corresponding to a predetermined definition from a plurality of adjustment modes in response to determining that the terminal equipment obtains screen content of the terminal equipment at the predetermined definition at a first resolution, the first resolution corresponding to the predetermined definition; based on the display resolution of the terminal equipment, adjusting the first resolution to a second resolution by using a target adjustment mode; and controlling the terminal equipment to obtain the screen content at the second resolution ratio under the preset definition. Therefore, the resolution ratio of the content can be adaptively adjusted under the condition that the screen content of the terminal equipment is recorded, so that the conditions of picture distortion, black edges or cutting in a display area and the like are avoided.
Owner:BEIJING ZITIAO NETWORK TECH CO LTD

Folding screen terminal and shell assembly

The utility model provides a folding screen terminal and a shell assembly. The folding screen terminal and the shell assembly are used for solving the problem that a sealing black edge of an auxiliary screen edge of an existing folding screen terminal is wide. The folding screen terminal comprises a middle frame, a folding screen, an auxiliary screen, a first colloid and a second colloid. In the thickness direction of the folding screen terminal, the auxiliary screen and the folding screen are supported on the two sides of the middle frame respectively. The auxiliary screen comprises a light-transmitting cover plate and a display panel, and the light-transmitting cover plate is located on the side, away from the folding screen, of the display panel. The middle frame is provided with a first frame section, the first frame section comprises a first part and a second part which are arranged in the width direction of the first frame section, the first part is located on the outer side of the second part, and a sound outlet is formed in the surface, away from the folding screen, of the first part. The surface, facing the folding screen, of the light-transmitting cover plate and the first part are bonded and fixed through first glue. In the thickness direction of the folding screen terminal, the surface, deviating from the folding screen, of the second part is opposite to part of the display panel, and the second part and the display panel are bonded and fixed through a second colloid.
Owner:HONOR DEVICE CO LTD

Screen projection method and equipment

The invention provides a screen projection method and equipment. The method comprises the following steps: detecting a screen projection operation of a user on a first interface; and in response to the screen projection operation, first screen projection data is sent to a second device, the first screen projection data comprises the first interface and screen projection data of N interfaces associated with the first interface, and N is an integer greater than or equal to 1. In the application, when the first device projects the screen to the second device, the transmitted screen projection data can include the screen projection data of the plurality of interfaces, so that the second device can display the interface contents of the plurality of interfaces at the same time, the display area of the display screen is fully utilized, the condition of black edge filling does not occur, and the user experience is improved.
Owner:HUAWEI TECH CO LTD

Black edge detection method and device

The embodiments of the present application provide a black edge detection method and device to solve the problem of inaccurate black edge detection in the prior art. The method provided by the present application includes: determining a predicted top black edge region and a first predicted bottom black edge region of an image frame to be processed, and determining a second predicted bottom black edge region based on the predicted top black edge region and the first predicted bottom black edge region; when the image frame to be processed meets a set condition, determining the top black edge region included in the image frame to be processed as the predicted top black edge region, and the bottom black edge region included in the image frame to be processed as the second predicted bottom black edge region; wherein the set condition is that the images of the second predicted bottom black edge regions respectively determined for any two adjacent image frames in N consecutive image frames are similar; the N consecutive image frames include the image frame to be processed and the N‑1 image frames before the image frame to be processed.
Owner:SHANGHAI SJ ELECTRONIC TECH CO LTD

Black film and black covered edge distinguishing method and device, equipment and storage medium

The invention discloses a black film and black covered edge distinguishing method and device, equipment and a storage medium, and is applied to the technical field of intelligent processing, and the method comprises the steps: processing a to-be-detected image, obtaining an overall detection image comprising a black film and a black covered edge, carrying out the channel extraction of the image, carrying out the Fourier positive transformation of an S channel of the obtained channel image, and obtaining a channel image; carrying out filtering processing on a low-frequency channel, and then carrying out inverse Fourier transform to obtain a target detection area; carrying out threshold segmentation on the target detection area, and carrying out Blob analysis operation to obtain a black frosted bottom film area; and performing filling processing on the black frosted bottom film area by using the pixel values to obtain a target filling area, and performing edge detection processing by using the target filling area to obtain target boundary information of the black film and the black covered edge. According to the method, image operations such as Fourier transform are performed on the to-be-detected image, and features of the black film and the black covered edge are amplified, so that boundary information of the bottom film and the covered edge film is accurately distinguished.
Owner:HANGZHOU ANMAISHENG INTELLIGENT TECH CO LTD

Intelligent interaction tablet

The invention relates to an intelligent interaction panel, and relates to the technical field of electronic equipment, and the intelligent interaction panel comprises a glass cover plate which covers one side, facing a light emitting surface of the intelligent interaction panel, of a display screen and is provided with a display area and a black edge area surrounding the display area; the black-edge areas comprise a sky-side black-edge area, a ground-side black-edge area, a left-side black-edge area and a right-side black-edge area; the back plate is located on the side, away from the glass cover plate, of the display screen, at least one hollowed-out part is arranged on the back plate in the light emitting direction of the intelligent interaction panel, and the hollowed-out part is located in the sky side black edge area close to the left side black edge area or close to the right side black edge area; the antenna assembly comprises at least one first antenna, the antenna assembly is located on the side, away from the display screen, of the backboard, and the first antenna corresponds to the hollow-out part and receives and transmits signals through the hollow-out part; the front integrity of the intelligent interaction panel can be guaranteed, and the good communication effect of the antenna assembly can be guaranteed.
Owner:GUANGZHOU SHIYUAN ELECTRONICS CO LTD

AI intelligent body measurement analysis system

The invention discloses an AI intelligent body measurement analysis system, and relates to the technical field of AI intelligent body measurement analysis. The system comprises a self-adaptive standardization module, a self-adaptive layout solving module, an edge and ground color unification module, a unified export and protocol module, a step-level trace reserving module, a layered fault-tolerant and quality gating module and a performance and resource optimization module. And the self-adaptive normalization module is used for executing safety margin setting and alpha channel unification processing on the multi-source heterogeneous body measurement image materials. According to the invention, through the cooperation of adaptive standardization, adaptive layout solving and edge and ground color unification modules, safe margin control, precise scaling and regular layout can be carried out on the multi-source heterogeneous body measurement image, the problems of image truncation, black edges and alignment dislocation are effectively avoided, the output consistency and definition of the body measurement image are ensured, and the quality of the multi-source heterogeneous body measurement image is improved. A high-quality image basis is provided for the AI model to accurately identify the body measurement mark, the body measurement data error is greatly reduced, and the high-precision body measurement scene requirement is met.
Owner:HANGZHOU WANSHELI TECHNOLOGY CO LTD

Display method, and electronic device, medium, program product and chip

The present application relates to the technical field of electronic devices. Disclosed are a display method, and an electronic device, a medium, a program product and a chip. In the display method in the present application, when an electronic device receives a screen rotation operation when displaying a first interface, the display orientation of the first interface on a screen is rotated in an animated manner from a first direction to a second direction. In addition, in the process in which the display orientation of the first interface is rotated from the first direction to the second direction, no black border or black corner is displayed by the electronic device, such that a background image viewed by a user can fully fill the entire screen at any rotation angle. In this way, the display effect of an interface during screen rotation can be improved.
Owner:HUAWEI TECH CO LTD

Screen projection method and device, terminal and storage medium

The embodiment of the invention discloses a screen projection method and device, a terminal and a storage medium, and relates to the technical field of screen projection. Comprising the steps of determining a target adaptive resolution from at least two adaptive resolutions supported by an application program based on an expected resolution of a destination end under the condition that a screen projection demand exists; determining a virtual screen resolution of a virtual screen based on the target adaptive resolution, wherein the aspect ratio of the virtual screen resolution is consistent with the aspect ratio of the target adaptive resolution; based on the virtual screen resolution, the source end coding resolution and the expected resolution, determining a target coding resolution, the source end coding resolution being related to the coding capability of the source end; performing video coding on the application picture by using a coder with a target coding resolution to obtain a screen projection data stream; and transmitting the screen projection data stream to the destination end, so that the destination end performs screen projection display based on the screen projection data stream. According to the scheme, black edges appearing when the target end displays the screen projection picture can be reduced.
Owner:GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

Video panoramic stitching and three-dimensional fusion device and system

The invention relates to the technical field of video stitching, in particular to a video panoramic stitching and three-dimensional fusion device and system.The video panoramic stitching and three-dimensional fusion device comprises a picture acquisition module, a picture correction module, a stitching optimization module, a three-dimensional reconstruction module and a model optimization module, and the picture acquisition module is used for acquiring video pictures in all directions; the picture correction module is used for eliminating noise and errors in the collected video picture; the splicing optimization module is used for splicing the video streams collected by the multiple cameras into a panoramic video and optimizing the splicing part; the three-dimensional reconstruction module is used for reconstructing a three-dimensional scene from the spliced panoramic video; the model optimization module is used for optimizing the reconstructed three-dimensional grid model; therefore, detail correction is carried out on the collected picture, the picture is optimized, gaps, black edges, picture overlapping or picture tearing are eliminated, a high-precision three-dimensional model is constructed, and the watching experience of a user is remarkably improved.
Owner:SUZHOU SHUIMU QINGHUA DECORATION ENG CO LTD

Sculpture scale

The invention discloses an intelligent positioning method and system based on a fixed display scale image. A reference image is zoomed at a fixed height (such as 500 pixels) and displayed on a canvas, and an original aspect ratio is kept by adopting black edge filling, so that a globally consistent pixel coordinate system is constructed. A user only needs to input the actual physical distance corresponding to the fixed height, the system can automatically calculate the pixel density, any click coordinate is converted into a physical position, and the sliding table is driven to complete high-precision positioning. The execution end can be provided with a positioning needle or an ultra-thin pen refill and is suitable for sculpture and sculpture scenes. According to the method, the human eye resolution limit is broken through, the positioning precision reaches + / -0.1 mm, the cost is lower than 500 yuan, the digital inheritance of the traditional sculpture skill is assisted, and a feasible path is provided for the disabled to participate in the cultural creative industry.
Owner:ēŽ‹é¹

High-precision SAR imaging motion compensation and geometric correction method for large pre-astigmatism

The application relates to the field of airborne synthetic aperture radar imaging, and discloses a high-precision large forward-looking SAR imaging motion compensation and geometric correction method, wherein Doppler center estimation is carried out on original echoes, the azimuth wavenumber spectrum is shifted to a baseband, distance direction Fourier transformation is carried out on the data, first-order motion compensation is carried out, then complete focusing of a scene center and consistent compression of a same LOS slant range target are completed according to a two-dimensional wavenumber domain reference function. Through Stolt interpolation of the two-dimensional wavenumber spectrum along the line-of-sight direction, distance-azimuth decoupling is realized, wavenumber spectrum utilization is improved, and defects such as needing azimuth zero padding to eliminate aliasing, having a black edge in the image, and side lobe tilting in the traditional wavenumber domain imaging algorithm are avoided; first-order consistent compensation and second-order space-variable motion compensation can also be realized, the image is focused to the wavenumber domain through azimuth de-bending, a large amount of zero padding in the space domain is avoided, a slant plane image with geometric distortion is converted to a ground plane image through geometric correction, and high-precision focusing is realized.
Owner:LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA

A multi-modal image registration method based on modal alignment distillation

The present application relates to a kind of multi-modal image registration methods based on modal alignment distillation, belong to image processing technical field.The method includes: using a kind of distillation learning guided training procedure, using the intermediate feature of excellent performance of same modal registration teacher model and output deformation field to guide type supervision to multi-modal registration student model, migrate the modal of student model intermediate feature and effectively reduce modal difference, output close to the high-quality deformation field estimated by teacher model, improve multi-modal registration performance;Adopt a deformable mask training strategy, deal with the problem that the registration result is inconsistent with the boundary of label image (i.e. the black edge of registration result and the original boundary of label image) caused by black edge effect of spatial transformation in registration process, effectively reduce its negative influence on registration, improve the registration performance of model.The present application can realize multi-modal image registration task, effectively solve the registration challenge caused by modal difference, achieve the effect of multi-modal image spatial alignment.
Owner:CHONGQING UNIV

Antenna, glass assembly and vehicle

The invention discloses an antenna, at least part of the antenna is suitable for being arranged in a light-transmitting area of glass, a radiator of the antenna comprises two conductive parts, the light transmittance of the first conductive part is larger than or equal to 85%, and the light transmittance of the second conductive part is larger than that of the first conductive part. The antenna can be arranged in the light-transmitting area of the glass and is far away from the black edge area, so that the signal interference of peripheral devices on the antenna is reduced, and the sight of a driver is not shielded.
Owner:BYD CO LTD