360 results about "Edge matching" patented technology

The present invention relates to a video coding method. Specifically, the invention relates to motion vector (MV) coding, wherein the MV coding is based on edge matching or adaptive template matching, namely the motion vector coding based on boundary matching (MVCBM) and the motion vector coding based on adaptive template matching (MVCATM). Generally speaking, the invention limits a prediction candidate set, wherein a predictor adaptively changes based on the current distribution of the adjacent MV. Subsequently, a matching technique (boundary matching in MVCBM and adaptive template matching in MVCATM) is used for reducing the number of the prediction and reducing the number of bits used by indexing. Afterwards, an optimal motion vector predicator is selected from the reduced concentrated predictor. The guessing strategy based on the least MVD standard further saves the number of indexing bits.

A pair of cameras having an overlapping field of view is aligned based on images captured by image sensors of the pair of cameras. A pixel shift is identified between the images. Based on the identified pixel shift, a calibration is applied to one or both of the pair of cameras. To determine the pixel shift, the camera applies correlation methods including edge matching. Calibrating the pair of cameras may include adjusting a read window on an image sensor. The pixel shift can also be used to determine a time lag, which can be used to synchronize subsequent image captures.

A method of joint arthroplasty includes obtaining an image of at least a portion of the tibial plateau. An outer periphery of at least a portion of the tibial plateau is derived based, at least in part, on the image. An implant is provided for the tibial plateau, the implant having a periphery that includes an outer edge that substantially matches the derived outer periphery of the tibial plateau.

A pair of cameras having an overlapping field of view is aligned based on images captured by image sensors of the pair of cameras. A pixel shift is identified between the images. Based on the identified pixel shift, a calibration is applied to one or both of the pair of cameras. To determine the pixel shift, the camera applies correlation methods including edge matching. Calibrating the pair of cameras may include adjusting a read window on an image sensor. The pixel shift can also be used to determine a time lag, which can be used to synchronize subsequent image captures.

A method generates hierarchical path index keys for single and multiple indexes with one scan of a document. Each data node of the document is scanned and matches to query nodes are identified. A data node matches a query node if the three conditions hold: if it is not the root step, there is a match for the query node in the previous step of the query; the data node matches the query node of the current step; and the edges of the data and query nodes match. A sub-tree of a data node can be skipped if the data node is not matched and its level is less than the fixed levels of the query. The matched data node is then placed in the match stacks corresponding to the match query nodes. The method uses transitivity properties among matching units to reduce the number of states that need to be tracked and to improve the evaluation of path expressions significantly.

A method and a device for soft edge blending of projected display images (16a, 16b) is provided. The method combines optical and electrical soft edge blending in an blending area (26) by using electrical blending in one fraction (146a, 146b) of the blending area (26a, 26b) of two or more overlapping images and using optical blending in another fraction (144a, 144b) of the blending area (26a, 26b). The method according to the present invention overcomes problems with manufacturing, alignment and adjustment of optical masks (148a, 148b) used in optical blending and the difficulties with electrically blending black images. The blending method can also be used in systems providing switching from soft edge blending to hard edge matching.

The invention discloses an underground pipeline positioning method based on a CORS (continuous operational reference system). The method comprises the following steps of: I, establishing a CORS; II, collecting paper drawings: collecting the pipeline as-built drawings of all underground pipelines paved in an area to be positioned and the topographical map around each underground pipeline respectively; III, making an electronic map, wherein the making process comprises the steps of paper map electronization treatment, drawing scanning and pretreatment, raster image transfer, raster image orientation, image sector conversion, pipeline attribution information marking, edge matching treatment, projection conversion, data check, conversion into an embedded electronic map and the like; IV, transferring and visually displaying the electronic map; V, superposing the coordinate data of the electronic map; and VI, positioning the underground pipelines. The method disclosed by the invention is easy and convenient to use and operate, has a good using effect and high practical value, and can really realize accurate positioning of the underground pipelines and effectively solve the problems of inconvenience in positioning operation, relatively bad positioning effect and the like of the existing underground pipeline positioning method.

The invention discloses a track and a road obstacle detecting method. The method comprises the following steps: A. obtaining an image of the front of a vehicle through a monocular camera or multiple cameras; B. transmitting and receiving an optical signal by a millimeter-wave device and a laser device to obtain a 2D point cloud image and a 2D spectrogram; C. performing a multi-look processing on the image, taking a video system as a medium, and analyzing and matching a laser radar with the video system by using a focal plane array; for a millimeter-wave radar, matching the video system with amillimeter-wave radar system by a data preprocessing and an edge matching method to complete the pixel level fusion of the laser radar, the millimeter-wave radar and the video system; performing sequence analysis on the acquired image, filtering a multi-radar system and the video system, and matching images acquired by the millimeter-wave radar and the laser radar with an original image; and D. marking obstacles. The track and the road obstacle detecting method can accurately identify the obstacles, has certain early warning functions, and can simultaneously ensure accuracy and early warning functions.

A method for mounting framing of integrate suspended ceiling and a suspended ceiling structure, the method is that: first measuring dimension on the roof ceiling and fixing a plurality of screws on certain position, then fixing the framing on the screws by the framing suspension; detachablely fixing the framing suspension on the screws by the screw cap, but suspending the framing on the framing suspension by the suspending hole arranged on the framing suspension, and moving the suspending position of the framing based on requirement; the suspended ceiling structure is at least composed of a framing and a gusset plate, the framing is fixed on the roof ceiling by a screw for the framing suspension, the plane gusset plate or electric apparatus panel is tached in the lower of framing by the tache edge match and is fixed in the locking slot formed by two side sheets to form an intact suspended ceiling plane; the lower of the framing also can be connected to the framing in the lower row by the framing connecting part, the framing in the lower row and the framing in the upper row are arranged with cross intersection, the plane gusset plate or electric apparatus panel is tached in the locking slot of the framing in the lower or upper row by the tache edge match; the suspended ceiling structure has characteristic of simple method, reliability and practicality, convenient generalizing application, reliable and firm structure, wide range of applicability and so on.

Traditionally, in the case in which an image is projected onto an object of projection not equipped with frame marking edges, markers have had to be attached to the object of projection each time in order to automatically adjust the size of the projection region to which the image light is projected, which was cumbersome. Thus, in the present invention, in projecting the test pattern images onto the object of projection, the zoom projection lens is adjusted to enlarge the size of the projection region gradually, and the projection region is imaged each time. After the vertex of the object of projection matches the edge of the object of projection, when the projection region becomes forced out from the area of the object of projection, a part of the contour of the test pattern images projected within the imaged image matches a part of the edges of the object of projection. Therefore, the contours of the test pattern images projected within the projected images are compared before and after the enlargement. In the case in which there is a consistent portion, it is determined that the projection region has become forced out from the area of the object of projection, and an attempt is made to restore the size of the projection region to the previous size before the enlargement.

The invention discloses an edge-matching-based relative pose calibration method of a laser range finder and a camera. The relative pose calibration method comprises the steps: extracting a point cloud data edge contour of the laser range finder and an image edge contour of the camera firstly; establishing the probability distribution of a point cloud data edge, namely probability distribution of an image edge; and then minimizing a KL distance of the two distributions to obtain a relative pose parameter of the laser range finder and the camera. The relative pose calibration method is independent of a specific environment structure and auxiliary objects such as calibration boards, can run in an on-line manner and can be used for timely updating the relative pose of the laser range finder and the camera; with the adoption of the relative pose calibration method, the extracted point cloud data edge contour and the image edge contour can be further used for other applications such as environment object identification and location.

A holding frame with interior tabs is attached inside an outer surface of a glove in a normal wrist watch position. A watch head with an outer peripheral groove in an outer perimeter matching an inner edge of the frame is snapped into the holding frame with the frame tabs snapping into the watch groove.

The invention discloses an auxiliary device for starting and receiving of a shield machine. The auxiliary device comprises a steel sleeve, a bottom framework, and a bearing board, wherein the steel sleeve is formed by connecting a plurality of sleeve bodies, the bottom framework is arranged at the bottom of the steel sleeve, the bottom framework comprises a plurality of sections, the bottom framework comprises a bottom board that extends along a direction vertical to an axis of the steel sleeve, the bearing board extends along the direction vertical to the axis of the steel sleeve and has a side edge matched with the outer side wall of the sleeve body, the bearing board is vertical to the bottom board, lifting boxes are arranged at two ends of the bottom board, the lifting boxes comprise an external box that is formed by connecting a top board parallel to the bottom board with a part of the bearing board and an internal box that is arranged in the external box, the internal box is internally provided with a hydraulic device, and a plurality of vertical and horizontal steel boards are arranged in a clearance between the internal box and the external box so as to divide the clearance into a mesh structure. The auxiliary device can be used for starting and receiving of the shield machine, also can realize cross-station, lifting and translation of the shield machine, is low in device loss and long in service life.

The invention relates to a crushing mechanism of a plastic crusher, which comprises a transmission shaft, a fixed cutter and a movable cutter set, wherein the movable cutter set comprises a plurality of press cutters and circular cutters, the press cutters and the circular cutters are arranged on the transmission shaft through concentric shaft holes, and two sides of the movable cutter set are provided with a group of fixed cutters respectively; the movable cutter set comprises three press cutters and four circular cutters, wherein the press cutters form a three-leaf spiral structure and each press cutter is provided with three R-shaped press cutter edges, and a plurality of blades of the circular cutters are regularly arranged to form a spiral V-shaped structure and each circular cutter is provided with a plurality of R-shaped circular cutter edges; and a fixed cutter edge matched with the movable cutter part is formed inside the fixed cutter. The crushing mechanism of the plastic crusher has the advantages that through the R-shaped edges formed on the edges of the press cutters and the circular cutters respectively, the irregular cut materials are ensured, the production of dust is reduced, and the conventional complex structure is simplified; and meanwhile, the traditional screen is replaced by adopting the fixed cutter structure, so the assembly is convenient to mount and maintain.

The invention discloses a method and a system for updating and warehousing urban pipelines on the basis of an ArcGIS (geographic information system). The method includes the following steps of acquiring spatial ranges of data of source databases; deleting certain data in target databases; establishing attribute import configuration; importing the data in the source databases into the target databases according to the attribute import configuration and cleaning and filtering certain attribute data; performing edge matching, and specifically, manually correcting and adjusting urban pipeline data and pipe point data in conflict ranges; establishing attribute association relationships among the urban pipelines and pipe points according to geometric network interfaces, namely assigning values to pipeline and pipe point association attributes in urban pipeline spatial databases by the aid of geometric network development interfaces; establishing the attribute association relationships among the urban pipelines and the pipe points; and updating and warehousing the data. The certain data which are deleted from the target databases correspond to the acquired spatial ranges. The certain attribute data do not conform to database constraints in the target databases. The method and the system have the advantages that urban pipeline updating and warehousing processes can be standardized and unified by the aid of the method and the system, and the method and the system provide a powerful support for application such as data sharing, migration and integration for the urban pipelines.

A stacked product array possesses a plurality of individual products. Each individual product contains a visible graphic designed such that each visible graphic is different. However, when the individual products are aligned together at least one edge of each visible graphic matches at least one edge of at least one other visible graphic. So, when the individual products are stacked appropriately the combination of the visible graphics forms at least one continuous larger visible graphic whose area is larger than the average area of the visible graphics. A process for enhancing the visibility and recognition of a sacked product array is also provided.

Disclosed is a computer implemented system that facilitates optimized panoramic stitching, comprising an interface that receives images corresponding to different camera locations. Each image comprises a first image depicting a portion of a scene from the point of view of a first camera location and a second image depicting a portion of a scene from the point of view of a second camera location. There is an overlapping region detection component that detects an overlapping region between the first and second images, a first homography component that transforms the first image to the perspective of the overlapped region of the second image, an edge detection component that partitions and groups all edge pixels in the overlapped region of the first image and the second image according to their connectivity, a first transformation component that transforms each connected edge group in the first image based on initial positions of each edge group after transformation by the first homography component, a second transformation component that transforms each connected edge group in the first image after transformation from the first transformation component, a matching component that matches the transformed edge groups of the first image determined from the second transformation component with the edge pixels of the second image to produce edge matching results, and a second homography component that transforms the first image to the perspective of the second image based on the edge matching results. There is also a merger block which performs stitching to merge the two images together based on the edge matching results and the transformed image from the second homography component. The merger block performs the stitching along a border of the second image that is in the overlapped region, and the first transformation component and the second transformation component apply different transforms.

A method generates hierarchical path index keys for single and multiple indexes with one scan of a document. Each data node of the document is scanned and matches to query nodes are identified. A data node matches a query node if the three conditions hold: if it is not the root step, there is a match for the query node in the previous step of the query; the data node matches the query node of the current step; and the edges of the data and query nodes match. A sub-tree of a data node can be skipped if the data node is not matched and its level is less than the fixed levels of the query. The matched data node is then placed in the match stacks corresponding to the match query nodes. The method uses transitivity properties among matching units to reduce the number of states that need to be tracked and to improve the evaluation of path expressions significantly.

The invention discloses a self-adaptive vector data incremental updating method. The method comprises the following steps of detecting and correcting a coordinate system, a data structure and a topological relation for to-be-updated data based on a database-entering standard, determining a new standard data type based on newly-produced standard data of the to-be-updated data, updating the data based on a factor updating method if the new standard data type is determined to finish construction survey data, updating the data in a mapsheet updating method if the new standard data type is determined to be large area census data, and detecting and processing spatial conflict for the updated data. According to the embodiment, functions of vector data change detection and increment update, self-adaptive data edge matching and spatial conflict detection and processing can be achieved; and integrity and consistency can be guaranteed after the data is updated.

The invention discloses an unsupervised video segmentation method integrated with temporal-spatial multi-feature representation. The features of a target are extracted and identified according to themotion information and saliency and color features of the target, and the target is segmented stably and accurately through a Gaussian mixture model. The method includes the following steps: super pixel segmentation; optical flow matching; optimizing the matching result; building a graph model, and calculating the super pixel-level segmentation result; using the segmentation result to train the parameters of a Gaussian mixture model; calculating the pixel-level segmentation result; and getting a final segmentation result according to the super pixel-level segmentation result and the pixel-level segmentation result. Through super pixel segmentation on each frame of image, the computational complexity is greatly reduced. The robustness of segmentation is improved by optimizing the optical flow matching information according to non-local temporal-spatial information. The introduction of the Gaussian mixture model makes up for the large edge matching error in the process of super pixel segmentation. The saliency feature further improves the accuracy and credibility of the segmentation result.

The invention provides an electronic map frame data updating method. The method is characterized in that on one hand, the method solves the problem that editing efficiency becomes lower due to the fact that geographic elements needing to be modified are increased when element conflicts exist in traditional spatial database version editing and mass data need to be edited, multi-user and multi-version concurrent editing is achieved, and the method is a novel updating operation method without data segmentation and edge matching; on the other hand, an increment updating information recorder is introduced for comprehensively and automatically recording information of updated content, such as operators, operation time and operation types (adding, deleting and modifying). A good basis is established for later statistics and analysis of updating conditions through automatic recording of updating information, and the workload condition can be effectively controlled.

The invention relates to the field of automobile part and component manufacturing technologies, in particular to an automobile wheel fender and a cold stamping forming technology of the automobile wheel fender. The wheel fender at least comprises a wheel fender body and reinforcement ribs located on the inner wall of the wheel fender body. The wheel fender body comprises a wheel fender upper portion and a wheel fender lower portion, multiple curve-shaped edges are arranged on the wheel fender body and comprise the edges matched with a front pillar of the side wall of an automobile body, the edges matched with an A pillar of the automobile body, the edges matched with an engine cover and the edges matched with a front bumper. Positioning installation holes are further formed in the wheel fender lower portion and the edges matched with front combination lamps. A special-shaped hole is further formed in the wheel fender body. The automobile wheel fender formed in a cold stamping mode is not prone to cracking in the use process, small in influence caused by outside temperature, long in service life, simple in technology and low in cost.

The invention discloses a massive topographic data organization and release method, and relates to the technical field of processing and application of geographic information. The massive topographic data organization and release method is characterized by comprising the following steps of reading topographic data, unifying topographic data coordinates, selecting a topographic data range, establishing index information, resampling the topographic data, fusing the topographic data and releasing the topographic data, which form a complete process. The massive topographic data organization and release method has the superiority that the technical problems that organization structure construction of the massive topographic data can be convenient for updating, rapid retrieval and acquisition of the data and the like can be simultaneously solved. Meanwhile, images can be compressed, edge-matched and fused, a storage space is reduced, access efficiency is improved, and the massive topographic data organization and release method is convenient for updating and maintenance; the massive topographic data can be subjected to multi-platform data release and sharing; and safe, reliable, accurate and efficient data support is provided for deep application in different industries.

A pair of cameras having an overlapping field of view is aligned based on images captured by image sensors of the pair of cameras. A pixel shift is identified between the images. Based on the identified pixel shift, a calibration is applied to one or both of the pair of cameras. To determine the pixel shift, the camera applies correlation methods including edge matching. Calibrating the pair of cameras may include adjusting a read window on an image sensor. The pixel shift can also be used to determine a time lag, which can be used to synchronize subsequent image captures.

A medicament patch comprises a release paper that oppositely lies on the surface of a patch carrier. The release paper is defined to, from right to left, a first teardown slice, a second teardown slice, and a third teardown slice. Each teardown-slice correspondingly matches with an adjacent edge of another teardown slice through joints of concaves and convexes. A radian that is inwards depressed by degree is formed where the second teardown slice is close to the adjacent edges of the first teardown slice and third teardown slice. A curve is then formed to make the release paper stably and securely adhere to a carrier. However, for the functional effect of a product, the curve is unlikely complicated to make a trouble to a user in tearing down a medicament patch.

The invention discloses a safety destruct-style injector assembling machine assemble device relating to medical appliance preparing device, which consists of loading rotary table and injection tube rotary table. The invention is characterized by the following: the loading rotary table is contact with injection tube rotary table and needle seat rotary table; the outboard of every slide block installs at least one group of upper coves and lower coves in one-to-one correspondence; the cove of injection tube distributing homogeneously on injection tube rotary table edge matches along with lower cove; the cove of needle seat distributing homogeneously on needle seat edge is corresponding to upper cove; the thimble corresponding to upper cove and lower cove is installed on the upper rotary table of loading rotary table; the bottom of tangential area between loading rotary table and needle seat rotary table; there is an uptilted slant face along with rotating direction of loading rotary table and needle seat rotary table.