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1864 results about "Image splicing" patented technology
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Real-time panoramic image stitching method of aerial videos shot by unmanned plane
ActiveCN102201115ARealize the transformation relationshipQuickly achieve registrationTelevision system detailsImage enhancementGlobal Positioning SystemTime effect
The invention discloses a real-time panoramic image stitching method of aerial videos shot by an unmanned plane. The method comprises the steps of: utilizing a video acquisition card to acquire images which are transmitted to a base station in real time by an unmanned plane through microwave channels, carrying out key frame selection on an image sequence, and carrying out image enhancement on key frames; in the image splicing process, firstly carrying out characteristic detection and interframe matching on image frames by adopting an SURF (speeded up robust features) detection method with good robustness; then reducing the series-multiplication accumulative errors of images in a frame-to-mosaic image transformation mode, determining images which are not adjacent in time sequence but adjacent in space on a flight path according to the GPS (global positioning system) position information of the unmanned plane, optimizing the frame-to-mosaic transformation relation, determining image overlapping areas, thereby realizing image fusion and the panoramic image construction and realizing real-time effect of carrying out flying and stitching simultaneously; and in image transformation, based on adjacent frame information in a vision field and adjacent frame information in airspace, optimizing image transformation to obtain the accurate panoramic images. The stitching method has good real-time performance, is fast and accurate and meets the requirements of application occasions in multiple fields.
Owner:HUNAN AEROSPACE CONTROL TECH CO LTD
Binocular camera-based panoramic image splicing method
InactiveCN106683045AImprove operational efficiencyAchieve a natural transition effectImage enhancementImage analysisNear neighborLongitude
The invention provides a binocular camera-based panoramic image splicing method. According to the method, a binocular camera is arranged at a certain point of view in the space, the binocular camera completes photographing for once and obtains two fisheye images; a traditional algorithm is improved according to the defect of insufficient distortion correction capacity of a latitude-longitude correction method in a horizontal direction; corrected images are projected into the same coordinate system through using a spherical surface orthographic projection method, so that the fast correction of the fisheye images can be realized; feature points in an overlapping area of the two projected images are extracted based on an SIFT feature point detection method; the search strategy of a K-D tree is adopted to search Euclidean nearest neighbor distances of the feature points, so that feature point matching can be performed; an RANSAC (random sample consensus) algorithm is used to perform de-noising on the feature points and eliminate mismatching points, so that image splicing can be completed; and a linear fusion method is adopted to fuse spliced images, and therefore, color and scene change bluntness in an image transition area can be avoided.
Owner:深圳市优象计算技术有限公司
Ground navigation planning control method of rover
ActiveCN103869820AReduce calculationImprove planning efficiencyPosition/course control in three dimensionsTerrainEnvironmental perception
A ground navigation planning control method of a rover comprises the steps of sequential image splicing, three-dimensional terrain recovery, terrain traversability analysis, path planning and moving strategy generating. By means of the ground navigation planning control method of the rover, ground navigation planning control over the rover is conducted on the basis of a binocular stereoscopic vision system, a plurality of images comprising detection targets can be selected to be processed according to the positions of the detection targets of the rover with combination of practical situations, unnecessary calculation is reduced, and planning efficiency is high; an automatic noise reduction and manual denoising mode is provided so as to process three-dimensional terrain data, environmental perception accuracy is improved, and high-precision navigation planning control over the rover is facilitated; a data fusion mode is provided so as to splice multiple sets of terrain data, the environmental perception range is enlarged, and safety of navigation planning is improved; navigation planning control schemes of terrain traversability analysis, path planning and moving strategy generating provided in the ground navigation planning control method are still suitable for rovers provided with other sensors for environmental perception.
Owner:BEIJING INST OF CONTROL ENG
Image splicing method and apparatus
The present invention discloses an image splicing method and apparatus, and relates to the field of image processing technologies. In embodiments of the present invention, first, a spatial relationship parameter between two scenes is determined; a spatial relationship parameter between two cameras that photograph the two scenes respectively, and internal parameters of the two cameras are obtained; and then, an operation is performed on the spatial relationship parameter between the two scenes, the spatial relationship parameter between the cameras, and the internal parameters of the cameras to obtain a homography matrix between photographed images; and according to the homography matrix, the images photographed by the two cameras are mapped to the same coordinate system to splice the images into one image. The embodiments of the present invention are mainly applied to calculation of a homography matrix between two images, especially to calculation of a homography matrix in image splicing process.
Owner:HUAWEI DEVICE CO LTD
360 degree panoramic aerial view generation method used for assisting vehicle driving
InactiveCN102629372ALower requirementReduce computationImage enhancementRoad vehicles traffic controlVehicle drivingPerspective transformation
A 360 degree panoramic aerial view generation method used for assisting vehicle driving is disclosed. The method is characterized by: firstly, erecting four wide-angled cameras around a vehicle and guaranteeing that the cameras can cover all the field areas surrounding the vehicle; secondly, calibrating a camera parameter and carrying out distortion rectification on the collected image; then, carrying out areal perspective transformation on the rectified image so as to obtain the aerial view with a downward view effect; finally, establishing a image splicing lookup table so that a system can rapidly complete splicing of a panoramic picture through a lookup table method. The method is simple is easy to perform. A hardware equipment requirement is low. The system realizes the splicing of four pictures through the lookup table mode, which is rapid and has less amount of calculation. The operation parameter which is calibrated once by using the method can be served as a constant, be stored and be used in real time hardware system work so that system processing time can be substantially reduced and the real-time performance requirement of the system can be satisfied.
Owner:BEIJING UNIV OF TECH
High-precision dynamic map data processing system and method based on road side sensors
ActiveCN107229690AWith real-time validityReal-time acquisitionRoad vehicles traffic controlCharacter and pattern recognitionData processing systemFeature extraction
The invention discloses a high-precision dynamic map data processing system and method based on road side sensors. The high-precision dynamic map data processing system comprises a map data acquisition terminal and a high-precision map generation service terminal. The map data acquisition terminal provides a bulk of diversified map road original data for the high-precision map generation service terminal; the high-precision map generation service terminal comprises a map data processing module and a map generation visual module; the map data processing module is used for extracting road features from the map road original data and carrying out hierarchical design on all the road features, splicing information of the same road, completing road feature data fusion on the road feature aspect first, finally completing image splicing on the image aspect, and generating a road downward projection drawing in dependence on the splicing result; and the map generation visual module is used for marking road information on the downward projection drawing, the marked road information and the downward projection drawing commonly form map data of a high-precision map, visual editing is carried out on the map data, and a high-precision dynamic map is generated. According to the invention, the generation cost of the high-precision map can be reduced, and the high-precision dynamic map can be updated quickly.
Owner:INST OF SOFTWARE APPL TECH GUANGZHOU & CHINESE ACAD OF SCI
Image registration and multi-resolution fusion-based panoramic image splicing method
InactiveCN108416732AReduce invalid areaUniform exposureImage enhancementImage analysisEqualizationMulti resolution
The invention discloses an image registration and multi-resolution fusion-based panoramic image splicing method. An adaptive threshold of sequence images is subjected to binary processing and image contour information is extracted by utilizing a pixel neighborhood relationship; a similar region of an image contour structure is quickly estimated through a similarity measurement method for Hu momentinvariant features; and SIFT feature point extraction is performed in a similar region part of two original images. Moreover, feature point initial matching is performed by using a bidirectional K-nearest classification algorithm; mismatched points are screened by an RANSAC algorithm; and an affine transformation matrix among the images is estimated. In addition, in an image fusion aspect, brightness equalization and local color mapping processing is adopted. Then, through an improved Laplacian pyramid multi-resolution fusion algorithm, spliced images are fused to realize seamless splicing. According to the method, the image splicing time is shortened, the image splicing efficiency is improved, the similar region can be quickly located, the mismatch in splicing is effectively improved, and the image registration precision is improved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM
System and Method For Panoramic Image Stitching
ActiveUS20110102542A1Addressing slow performanceEasy to handleGeometric image transformationCharacter and pattern recognitionBarcodeImage stitching
A system for capturing images of a target, such as a test tube, that is presented in front of an optical imager and rotated 360 degrees. The imager of the system captures a series of images which are then stitched together to form a panoramic image of the target. The panoramic image may then be processed to decode any barcode code information placed on the target, capture other information placed on the target, or obtain information about the target or the contents thereof.
Owner:NOVANTA CORP
Fast image splicing method based on improved SURF algorithm
The invention discloses a fast image splicing method based on an improved SURF algorithm. An existing corner extraction method and an existing corner feature description method are improved, mismatching of extracted corners is eliminated, and multiple images can be spliced fast. At first, an improved FAST algorithm is adopted for increasing the extracted corners, the operation speed of the FAST algorithm for extracting the corners is high, and after the improvement is carried out, the stability is good; secondly, the combination of SURF description and LBP description is adopted for describing the corner feature, and in this way, the speed for matching the corners can also be increased; then an RANSAC method is adopted for eliminating mismatching, accuracy is improved, and a more accurate transformation matrix is obtained, so that fast splicing is carried out; finally, according to obtained matching point pairs, parameters for transforming images to be spliced into reference images are calculated, and a slow-in and slow-out method is adopted for finishing image splicing.
Owner:THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
Full-view cooperative video monitoring apparatus and full-view image splicing method
InactiveCN101312526AAvoid monitoring blind spotsSimplify Object DetectionImage enhancementClosed circuit television systemsVideo monitoringImaging quality
The invention relates to a panoramic linkage video monitoring device and a splicing method of panoramic images, belonging to the video monitoring technical field, wherein the panoramic linkage video monitoring device is composed of a monitoring device and a motion camera, and the motion camera is provided in the monitoring device. The invention is characterized in that the cover of the monitoring device is uniformly provided with N stable cameras, and the pictures of the N stable cameras are spliced into a panoramic image, the monitoring device is provided with a control circuit for controlling the linkage between the video images of the stable cameras and the motion camera. The invention adopts the linkage between the motion camera and the stable cameras, having high image quality, large monitoring angle range and the ability for tracking and amplifying the picture of any area in the view angle range. The invention combines panoramic image and local amplified image to improve the security level of the monitoring device, which has high technical level and wide application.
Owner:TIANJIN YAAN TECH CO LTD
A real time panorama video splicing method based on ORB characteristics and an apparatus
InactiveCN103516995AFast extractionReal-time panorama stitching processingTelevision system detailsColor television detailsColor imageFeature extraction algorithm
The invention discloses a real time panorama video splicing method based on ORB characteristics. The real time panorama video splicing method based on the ORB characteristics comprises the following steps: acquisition of multipath synchronized video data is started; pretreatment is carried out on images in various paths at a same moment, and color images are changed into gray scale images of 256 levels, and a de-noising processing is carried out on the images through employing a Gaussian filter; the ORB feature extraction algorithm is employed to carry out feature point extraction on the images in the various paths at the same moment, and ORB characteristic vectors of the feature points are calculated; through the adoption of the nearest neighborhood matching method and the RANSAC (random sample consensus) matching method to determine a homography matrix array between corresponding frames of the synchronized videos; frame scene splicing is carried out according to the homography matrix array; and finally spliced videos are output. The real time panorama video splicing method based on ORB characteristics and the apparatus are advantageous in that: the feature extraction speed and the coupling effect are improved in the image splicing process.
Owner:CENT SOUTH UNIV
Splicing device for real-time high speed high definition panoramic video and method thereof
ActiveCN103763479AThe problem of reducing the number of cache linesGuaranteed image qualityTelevision system detailsColor television detailsComputer graphics (images)Video sequence
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.
Owner:SHENZHEN INFINOVA
Image splicing method and equipment
InactiveCN101923709AHigh speedEliminate visual inconsistenciesTelevision system detailsImage enhancementVisual perceptionImage splicing
The invention discloses an image splicing method and image splicing equipment which are used for splicing an image rapidly and do not reduce the quality of the spliced image. The method comprises the following steps of: determining a quilt between a first image and a second image; dividing pixels of the first image and the second image into a foreground pixel and a background pixel; splicing the foreground pixel of the first image and the second image based on the quilt; and deforming the background pixel and enabling the background pixel to be fused with the spliced foreground pixel. The method has the characteristics of simple algorithm and high speed. Layered splicing is adopted, and background deformation adapts to the foreground pixel splicing, therefore the inconsistency of vision is eliminated and the quality of image splicing is high.
Owner:NEC (CHINA) CO LTD
Rapid image splicing method based on wide-angle lenses
InactiveCN103971352ASplicing speed is fastHigh speedImage enhancementImage analysisCoordinate mappingImage sequence
The invention discloses a rapid image splicing method based on wide-angle lenses. The method includes the steps that firstly, distortion correction is conducted on images acquired through the wide-angle lenses; secondly, cylindrical surface mapping is conducted on the images on which distortion correction is conducted, and a two-dimensional discrete coordinate mapping table is generated for each wide-angle lens; thirdly, the two-dimensional discrete coordinate mapping table of each wide-angle lens is loaded, and distortion correction and cylindrical surface mapping are sequentially conducted on the distortion images acquired through the wide-angle lenses according to the tables; fourthly, translation parameters between adjacent visual angle images on which cylindrical surface mapping is conducted are acquired, and the adjacent visual angle images are registered; fifthly, the registered adjacent visual angle images are fused, wherein Laplacian pyramids are established for registered adjacent visual angle image sequences respectively, linear fusion is conducted on a high-frequency pyramid image overlaying region and a low-frequency pyramid image overlaying region, and then a fused image of the adjacent visual angle images is obtained. The method has the advantages of being high in splicing speed and real-time performance.
Owner:SOUTH CHINA UNIV OF TECH
Method of unmanned plane image real-time splicing
InactiveCN102982515AEasy accessImprove the level of actual combatImage enhancementGeometric image transformationTemplate matchingImage matching
The invention discloses a method of an unmanned plane image real-time splicing. The method comprises the following steps: (1) obtaining image data downloaded by an unmanned plane in real time and obtaining global position system (GPS) information of the unmanned plane, attitude information, height information, speed information, camera parameter information synchronously downloaded with the image data in the real time; (2) carrying out processing and transformation on the obtained images according to the information of the first step and obtaining the pre-processed images; (3) carrying out overall dynamic image amendment for to-be-spliced images and spliced images; (4) judging image overlapped areas according to the flying direction of the unmanned plane, obtaining templates, and carrying out image matching and image fusion; (5) achieving splicing for the frame image, and then entering the first step to carry out image splicing of the next frame. The method can quickly obtain the flying direction trend of the image of the unmanned plane, shortens matching searching ranges, enables the matching time to be shorter than that of a span practice that adjacent images are downloaded by the unmanned plane, and real-time performance of the image splicing of the unmanned plane is guaranteed.
Owner:NO 27 RES INST CHINA ELECTRONICS TECH GRP
Image splicing method based on improved image fusion
InactiveCN107146201AImprove accuracyImprove real-time performanceImage enhancementImage analysisDynamic planningReference image
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.
Owner:CHONGQING UNIV OF POSTS & TELECOMM
Wide-field ultra-high-resolution imaging system
ActiveCN102821238AImprove imaging resolutionHigh LW/PH valueTelevision system detailsColor television detailsWide fieldImaging processing
The invention discloses a wide-field ultra-high-resolution imaging system comprising a narrow-field long-focal-length optical imaging sub-system array, an image processing device with an image splicing function and a system control device with a system control function. According to the invention, the formed image has an ultra-high resolution. Within the selected design index, the purpose of obtaining narrow-field close-up images while obtaining the wide-field wide-angle images is fulfilled by field selection.
Owner:TYPONTEQ CO LTD
Parallel and matching precision constrained splicing method for consecutive frames of multi-feature-point unmanned aerial vehicle reconnaissance images
InactiveCN103886569AImprove registration accuracyImprove efficiencyImage enhancementImage analysisImaging processingUncrewed vehicle
The invention discloses a parallel and matching precision constrained splicing method for consecutive frames of multi-feature-point unmanned aerial vehicle reconnaissance images, and belongs to the technical field of unmanned aerial vehicle image processing. According to the method, the data sizes of four stages, namely, the feature extraction sage, the feature matching stage, the matrix transformation stage and the image synthesis stage, of image splicing are deeply analyzed, and the serial or parallel dependence relations between the stages are deeply analyzed. The data processing mode which conforms to the large-data-size image processing features of an unmanned aerial vehicle and meets the requirement for processing the features of the unmanned aerial vehicle is designed according to types of data and relations between the data. Meanwhile, a multi-core resource and multi-thread calculation method of a computer is applied to the data processing process so that the use ratio of computing resources can be increased and the operation speed can be increased. The method is high in pertinence, the capacity for splicing and processing the large-data-size remote sensing images of the unmanned aerial vehicle can be remarkably improved, and real-time generation of image splicing intelligence of the unmanned aerial vehicle is ensured.
Owner:BEIHANG UNIV
Mobile phone capable of panorama shooting by pick-up head combination
The invention discloses a mobile phone adopting a panoramic camera unit. The mobile phone comprises a mobile phone body, a plurality of cameras arranged in the mobile phone body and a picture splicing process module arranged in the interior of the mobile phone body and connected with the cameras. Worthily, every camera arranged is a mutually separate module; when adjacent cameras are arranged, shooting angles and / or image sections shot by the cameras are mutually and partially overlapped. In addition, all the cameras are lined horizontally. When the shooting angles of all the cameras are added and overlapped together, an angle obtained is larger than the shooting angle of one camera but smaller than 180 degrees. Moreover, all the cameras adopt synchronous shooting mode. The invention realizes panoramic image shooting of the mobile phone by the combination of shooting angles of a plurality of cameras and the image splicing technology.
Owner:LENOVO MOBILE COMM TECH
Bridge crack detection method
ActiveCN110378879AImprove mobilityIncrease flexibilityImage enhancementImage analysisTerrainBridge deck
The invention discloses a bridge crack detection method. Due to the fact that manual marking has certain subjectivity, the pavement crack detection precision depends on experience knowledge of experts, and experience lacks objectivity in quantitative analysis. The method comprises the following steps: 1, collecting images of a detected bridge floor one by one to obtain a bridge floor image set; 2,splicing images; 3, detecting crack; 4, extracting crack parameter. According to the invention, the image acquisition and processing technology replaces human eyes to complete automatic nondestructive detection of the bridge crack, and has very important practical significance for research of the bridge crack detection technology in a complex terrain environment. On one hand, the construction safety is enhanced, and on the other hand, the operation maneuverability and flexibility are improved. According to the invention, fidelity splicing of multiple groups of bridge deck images is realized,the image splicing precision and efficiency are improved, a working foundation is laid for subsequent bridge crack image detection, and a technical reference is provided for image splicing detection in other fields.
Owner:HANGZHOU DIANZI UNIV
Method of volume-panorama imaging processing
ActiveUS20060239571A1Improve accuracyImprove reliabilityImage enhancementImage analysisImaging processingSonification
The present invention discloses a method of volume-panorama imaging processing, which generates a volume-panorama image by subsequently splicing respective image frames from an image sequence obtained in a real-time way or stored in a medium based upon the fact that the immediately adjacent image frames have the largest correlation. The method comprises the steps of: reading the image sequence, and firstly initializing an aligned image and a spliced image; dividing the i-th image frame Fi into a plurality of sub-regions; calculating a motion vector of the i-t image frame with respect to the aligned image; fitting the motion vector to calculate a transform coefficient; splicing the Fi to the current spliced image based upon the transform coefficient, and updating the aligned image; entering into a self-adaptive selection of a next image frame until the end of the splicing; and outputting the current spliced image as a resultant image. Additionally, when the image Fi is spliced, double-filtering architecture of selecting characteristic points through a filtering and selecting the valid motion vector of the selected characteristic points through the other filtering to reduce an alignment error may be adopted. According to the present invention, the volume-panorama imaging can be done quickly and accurately so that the reliability of images particularly meets a very high requirement of the ultrasonic iatric diagnose.
Owner:SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
Multi-image seamless splicing method and apparatus taking panoramic image as reference
InactiveCN103338343ATelevision system detailsPicture reproducers using projection devicesMulti-imageLow demand
The invention relates to the multi-video seamless splicing technology. Calibration of a relative position relation between multiple videos is needed. The invention proposes a multi-video seamless splicing method and a splicing panoramic camera apparatus taking a fish-eye panoramic camera as a reference. The apparatus comprises a fish-eye panoramic camera and a camera array formed by a plurality of common cameras. The fish-eye panoramic camera photographs a panoramic image in a 180 DEG view. The camera array photographs common videos which are used for the multi-video splicing. According to the method, all the cameras in the camera array are in registration with the panoramic image, a relative position relation between the camera array and the panoramic camera is established, and the seamless splicing of the multiple videos are conduced according to the relative position relation. The method and the apparatus have the advantages such as low demand for overlapping field of vision, and good robust performance of registration, and solve a problem of poor image splicing effect caused by low image registration precision in a conventional spliced panoramic camera composed of multiple common cameras.
Owner:HUNAN VISION SPLEND PHOTOELECTRIC TECH
Fast image splicing method
InactiveCN101840570AAchieve integrationQuick stitchingImage enhancementImage analysisPhase correlationComputation complexity
The invention discloses a fast image splicing method, which is characterized by comprising the following steps of: (1) acquiring a single-breadth field image; (2) extracting characteristic information in an image to be spliced; (3) performing two-dimensional wavelet transform on the image to be spliced to obtain high-frequency coefficients reflecting the profile of change in a horizontal direction and a vertical direction of the image, and realizing overlapped position alignment in combination with a phase correlation method; and (4) adopting a weighted mean method to fuse overlapped areas of the image to finish the splicing. In the method, low-energy coefficients reflecting the gradual change of illumination are removed by performing the two-dimensional wavelet transform on the image and then the high-frequency coefficients reflecting the profile of the change in the horizontal direction and the vertical direction of the image are obtained, which can effectively reduce calculation complexity; and simultaneously, the fast and accurate overlapped position alignment is realized in combination with the phase correlation method and the fusion of the image is realized by adopting the weighted mean method so as to realize the fast and accurate splicing of PCB images of various specifications and various colors.
Owner:GUANGDONG UNIV OF TECH
SURF operand-based microscope image splicing method
InactiveCN102129704AGuaranteed accuracyIncreased sensitivityMicroscopesEditing/combining figures or textMicroscope image processingImaging processing
The invention discloses a speeded up robust features (SURF) operand-based microscope image splicing method. In the method, an SURF operand is introduced in the field of microscope image splicing aiming at a large number of spot-like structures such as bubbles, cells and the like in a medical microscope image; the SURF operand is improved; an area is segmented and simultaneously a Gaussian weighting process is simulated; and the number of dimensions of a description vector is halved; therefore, the computational overhead for matching feature points is reduced. By applying the method, the matching accuracy is ensured and simultaneously the speed is improved greatly. The method can be suitable for the field of medical image processing and other computer vision research fields related to image splicing.
Owner:SHANDONG UNIV
Panoramic selfie taking method and mobile terminal
InactiveCN106713660AReduce technical difficultyEasy to operateTelevision system detailsGeometric image transformationComputer graphics (images)Computer terminal
Embodiments of the invention provide a panoramic selfie taking method and a mobile terminal, which are applied to mobile terminals comprising cameras and flexible screens. The method comprises: receiving a panoramic selfie taking command input by a mobile terminal user; controlling a flexible screen to axially rotate, and controlling a camera to continuously acquire each frame image; detecting whether preset shooting finish conditions are met; when the preset shooting finish conditions are met, finishing the rotation of the flexible screen and the image acquisition of the camera; and based on the acquired each frame image, performing image splicing, thereby generating a panoramic selfie. According to the panoramic selfie taking method provided by the embodiments of the invention, the mobile terminal only needs to rotate for a relatively smaller angle, and then can acquire one panoramic selfie.
Owner:VIVO MOBILE COMM CO LTD
Method and apparatus for a natural image model based approach to image splicing/tampering detection
ActiveUS20080193031A1Excellent splicing detection capabilityImage codingImage data processing detailsPattern recognitionData set
Embodiments of the invention are directed toward methods for an effective blind, passive, splicing / tampering detection. The methods of the various embodiments of the invention use a natural image model to detect image splicing / tampering with a model that is based on statistical features extracted from a given test image and multiple 2-D arrays generated by applying the block discrete cosine transform (BDCT) with several different block-sizes to the test images. Experimental results have demonstrated that the new splicing detection scheme outperforms state-of-the-art methods by a significant margin when applied to the Columbia Image Splicing Detection Evaluation Dataset.
Owner:NEW JERSEY INSTITUTE OF TECHNOLOGY
Imaging screen configuring method of splicing type display screen
ActiveCN103730073AIntuitive screen operationQuick and easy screen configurationStatic indicating devicesIdentification meansImage resolutionComputer science
Owner:XIAN NOVASTAR TECH
Panoramic auxiliary driving system and method for large truck
ActiveCN109435852ALower requirementGuaranteed wide field of viewGeometric image transformationClosed circuit television systemsCamera imageImaging processing
The invention provides a panoramic auxiliary driving system and method for a large truck. Image collecting and calibrating are respectively conducted through a first camera, a second camera, a third camera, a fourth camera, a fifth camera and a sixth camera, inner parameters and outer parameters of all the cameras are acquired, the collected images are corrected through the inner parameters and the outer parameters, and a mapping model of the collected images and the corrected images is constructed; the collected images are subjected to affine transformation, perspective transformation and zooming transformation to obtain overlook images; the overlook images are subjected to image matching through a speed up robust feature registration algorithm to obtain local feature points; image splicing fusion is conducted according to the local feature points; a panoramic image after splicing is subjected to image processing to obtain a preprocessed panoramic image; a main control processing module conducts barrier detection on the preprocessed panoramic image according to the running state of a vehicle; the main control processing module automatically switches to a one-way camera image or amulti-way camera image according to the state of the vehicle, and early-warning is achieved according to the barrier detection result.
Owner:HUBEI UNIV OF TECH
Automatic panorama parking aerial view image splicing method, system and vehicle
ActiveCN106373091AAccurate splicingBrightness changes naturallyImage enhancementImage analysisImaging qualityWeight adjustment
The invention discloses an automatic panorama parking aerial view image splicing method, system and vehicle. According to the method, firstly a pre-designed calibration cloth and a splicing template are utilized, the image skeleton technology is utilized to automatically acquire a cross line center point of camera overlapping regions of adjacent calibration aerial view images, the center point is utilized to splice the calibration aerial view images, and weight adjustment on brightness of a camera overlapping region of one aerial view image is carried out through utilizing a distance between a pixel and a splicing slit according to brightness values of sub images of the camera overlapping regions of the adjacent calibration aerial view images. The splicing method is advantaged in that the method can be automatically realized, splicing precision is relatively high, brightness transformation of the panorama splicing images is natural, the splicing slit is not obvious, the manual splicing time can be shortened, and panorama splicing image quality is improved.
Owner:SHANDONG ACAD OF SCI INST OF AUTOMATION
Automatic parking space recognition panoramic look-around image real-time splicing method based on look-around
ActiveCN111369439AGood stitchingNo visible seamsImage enhancementImage analysisRadiologyParking space
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.
Owner:SOUTH CHINA UNIV OF TECH
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