96results about How to "Improve registration" patented technology

A system for producing corrective movement in a subject's teeth includes a dental aligner device having one or more through-holes and one or more connectors fixed to the subject's teeth. The connectors can snap into the through-holes when the dental aligner is worn on the subject's teeth.

A method for improving accuracy of depth map information derived from image data descriptive of a scene. In one embodiment Mutual Feature Map data are created based on initial disparity map data values and the image data descriptive of the scene. The Mutual Feature Map data are applied to create a series of weighting functions representing structural details that can be transferred to the first disparity values to restore degraded features or replace some of the first disparity values with values more representative of structural features present in the image data descriptive of the scene.

In a method, device and storage medium encoded with programming instructions for automatic image registration of image data of a current medical image MR study and at least one reference study, corresponding image pairs of the current study and the reference study are formed automatically with an association machine without needing the analyze the respective image data or pixel data. The pair determination takes place exclusively on the basis of the DICOM header data. A synchronized image processing and/or presentation of the generated image pairs takes place at a monitor.

Computer-based methods and systems for automatically determining convergence when registering image sets are provided. Example embodiments provide an Enhanced Image Registration System (EIRS), which includes an Image Comparison Module, a Transformation Optimizer, and a Convergence Calculator. When the EIRS receives two image sets to align, the Image Comparison Module compares two image sets to determine or measure how closely the image sets are aligned. The Transformation Optimizer determines an appropriate transformation to apply to one of the image sets to align it with the reference image set. The Transformation Optimizer then applies the determined transformation. The Convergence Calculator examines one or more points within the transformed image set to determine when convergence is attained.

A method for providing depth map information based on image data descriptive of a scene. In one embodiment, after generating an initial sequence of disparity map data, performing a smoothing operation or an interpolation to remove artifact introduced in the disparity map data as a result of segmenting the image data into superpixels.

The invention relates to a printing machine having at least one printer unit comprising at least one inkjet printhead, a central printing cylinder, and a drive motor of its own dedicated to the central printing cylinder. A conveying path of a printing material web through the printing machine has at least one first section and one second section, each defined by contact points of the printing material, which have motor-powered rotation bodies. At least the first section has a dedicated first measuring device for measuring a web tension of the printing material web in the first section. At least the second section has a dedicated second measuring device for measuring the web tension of the printing material web in the second section. A machine controller is arranged, by means of which the web tension in at least the first section and/or in the second section of the conveying path of the printing material web can be adjusted and/or is adjusted, taking into consideration at least both a measuring result from the first measuring device and a measuring result from the second measuring device. The invention further relates to a method for adjusting a web tension of a printing material web.

The invention pertains to the field of image processing in digital pathology. It notably proposes a method for processing a first digital image, representing a sample in a region, and which image has been acquired from the sample by means of a microscopic imaging system (1) and is stored in a multi-resolution image data structure (80), comprising the steps of:—retrieving (104) a sub-region of the first digital image at a first resolution, —executing (105) a transform function on the retrieved sub-region, the transform function modifying a content of the sub-region according to at least one metric derived from a second resolution representation of the first digital image.

Disclosed are systems for and methods of registering (i.e., aligning) a deformable image with a reference image subject to a spatially variant flexibility model and/or a non-Gaussian smoothing model. These systems and methods allow for the consideration of differences between the ways in which structures of interest may move within a patient. The registration includes modifying the deformable image to match similar features in the reference image. The systems include a deformation engine configured for performing a deformation algorithm subject to the spatially variant flexibility and/or smoothing models.

A method is provided for rendering a color image with a plurality of separations with a halftone process using a single screen. The screen is comprised of a plurality of pixel locations with associated threshold values and the image is comprised of a plurality of separation values. The method includes the steps of rendering a first one of the plurality of separations in accordance with the screen, wherein the plurality of pixel locations are turned on or off at a given pixel location based on a comparison of the image separation value at that pixel with the screen threshold value. The rendering of the next color separation is made in accordance with the rendering of the first separation and the screen, wherein for constant image separation values, pixel locations are turned on for the separation at pixel locations disposed in a highest available luminance region having a lowest available threshold value. When successive filling approaches the end portion of available threshold values, overlap filling with earlier rendered color separations occurs before the screen is completely filled.

An electrically conductive touch sensor panel construction and method and laser system for fabricating the same. The transparent touch sensor panel comprises at least two conductive coatings to provide a drive layer and a sense layer. The drive and sense layers are laminated together or otherwise assembled in a touch panel construction and in selected alignment. The layers are then subsequently laser patterned to form the conductive pathways for the touch panel sensor. The drive and sense layers may be concurrently or sequentially laser processed to form a selected pattern in each layer such that the drive and sense layers are substantially aligned forming a far more precise pattern array for the panel.

A continuous film scanning system for high resolution digital archival and duplication of motion picture film on a frame by frame basis. Film is driven through the film scanning system through the use of rollers and maintained at a consistent tension throughout the scanning process. Optical interrogation of the perforations associated with each film frame is used to trigger digital image capture. The continuous film scanning system is particularly well adapted to safely handle imperfect or damaged film stock.

The invention relates to a synchronous, clocked communication system, for example a distributed automation system, the stations of which can be arbitrary automation components which are coupled to one another via a data network (1) for the purpose of mutual data exchange. In this arrangement, all possible bus systems such as, e.g. field bus, professional field bus, Ethernet, industrial Ethernet etc. are available for use as the data network (1) of the communication system. One station of this communication system is designated as timing generator and ensures the distribution and maintenance of the communication clock used to and by all stations. The timing generator can also introduce a relative clock (9) in the entire communication system at all stations via the same mechanism. This station is thus also the master of the relative clock (9) or the applicable relative time (16). All stations of the communication system are, therefore, continuously synchronized to the relative clock (9), which is applicable throughout this system, with the valid relative time (16) and, therefore have the same understanding of time at any time. This distinctly improves or even makes possible, respectively, the implementation of applicative sequences, synchronization of events occurring simultaneously, accuracy in time during the detection of events or, respectively, switching of outputs.

The invention brings forward a novel image registering method. The method comprises the following steps: establishing gray-scale-based mutual information registering adaptation value function; establishing and initializing a group, wherein four dimensions of each individual in the group respectively represents horizontal translation, vertical translation, a rotation angle and a zoom coefficient of a floating image; according to the mutual information registering adaptation value function, calculating a fitness value of each individual, and calculating an optimal position of the whole group; by use of an iteration mechanism of a differential evolution algorithm, updating a position vector of each individual, and updating the optimal position of the whole group; determining whether conditions for executing an alternative strategy is satisfied, and if so, executing the corresponding alternative strategy; and repeatedly executing the aforementioned steps until maximum iteration frequency Tmax of the differential evolution algorithm is satisfied. The novel image registering method has the advantages of good registering stability and high precision, greatly improves the performance of an image registering algorithm and lays a reliable foundation for subsequent image processing work.

The invention discloses an underwater image splicing method based on multi-scale image fusion and SIFT features. The method comprises the following steps: 1) performing image enhancement on an underwater image by adopting an improved white balance algorithm and a linear interpolation-based CLAHE algorithm; 2) fusing an image after image enhancement by adopting a double pyramid image fusion methodto obtain an underwater preprocessed image; 3) performing underwater image registration on the underwater preprocessed image through an improved SIFT algorithm; and 4) calculating to obtain an image affine transformation matrix, and completing final underwater image splicing by adopting a linear gradual change synthesis algorithm. Experiments prove that the method fully considers the underwater environment and underwater imaging characteristics, and can obviously improve the effects and accuracy of underwater image enhancement, registration and splicing.

The invention relates to a double-registration method for different-exposure images in a wide dynamic camera. An existing wide dynamic camera is overlarge in calculation amount due to the fact that an image feature based registration algorithm is utilized to realize registration of the different-exposure images. The double-registration method for the different-exposure images in the wide dynamic camera includes that multichannel data of video images different in exposure are acquired through shooting hardware, videos with same exposure are registered respectively, the different-exposure images are reregistered by utilizing registered video images, registration accuracy of the different-exposure video images is improved, and needed wide dynamic images are synthesized finally. By the method, registration effect of the different-exposure video images of the handle wide dynamic camera can be improved, the wide dynamic video better in imaging effect is synthesized, and registration operation amount is reduced. By the method, by the aid of double registration, registration accuracy of the different-exposure images is improved, and imaging quality of the wide dynamic image is improved.

A system for adjusting selected operating parameters of an image forming device to improve color registration based on selected environmental conditions includes a first image forming station to print a first registration mark on a substrate, a second image forming station to at least partially erase the first registration mark to form a registration pattern in a reverse transfer process of the color registration, and a control mechanism to adjust voltage biases of charge and developer rolls of the second image forming station based on wet-bulb temperature values determined from measured dry-bulb temperature and relative humidity values and stored in a lookup table so as to maintain a predetermined potential difference between charged and uncharged areas of a PC drum of the second image forming station that avoids Paschen breakdown and the development of toner at charged areas of the PC drum during the reverse transfer process of the color registration.

The invention discloses an auxiliary registration device with a hospital guiding function. The auxiliary registration device with the hospital guiding function is characterized in that voice messagesof patients are collected, and the collected voice messages of the patients are converted into text messages of the patients; key words are extracted from the text messages of the patients, and the extracted key words are compared with a medical information database; when the key words are matched with the medical information database, patient symptom key words contained in the key words are determined; according to the patient symptom key words, patient visiting department information is inquired from the medical information database, identity information of the patients is collected, and theidentity information of the patients, the patient visiting department information and patient registration requests are sent to a hospital server; furthermore, the collected patient body temperaturevalues, patient blood pressure and patient text information are sent to the hospital server. The auxiliary registration device with the hospital guiding function disclosed by the invention can improveregistration and doctor visiting efficiencies and improve user experience.

The invention provides an image registration method and device. The image registration method may comprises steps of: subjecting a to-be-registered image to affine transformation according to a preset reference feature point to obtain an image subjected to the affine transformation; processing a reference image and the image subjected to the affine transformation by using a antoencoding algorithm to obtain an image feature; performing CNN training based on the image feature, preset matched image data and preset unmatched image data to obtain a feature descriptor; and subjecting the reference image and the to-be-registered image to image registration according to the feature descriptor. The image registration method and device achieve high registration accuracy of multispectral images and improve an image registration effect.

The invention discloses an SAR (Synthetic Aperture Radar) image precise registration method based on deep learning, and mainly solves the problems that local distortion cannot be corrected and time isconsumed in a traditional method. According to the implementation scheme, the method comprises the steps of 1) obtaining a training data set; 2) constructing a neural network for SAR image fine registration; 3) constructing a loss function of a neural network model for SAR image fine registration; 4) training a neural network for SAR image fine registration by using the training data set to obtain a trained network model; and 5) inputting the SAR image to be registered and the SAR image as a reference into the trained network model to obtain a registered SAR image. The SAR image registrationmethod can correct the overall deformation and local distortion between the SAR images, improves the registration performance, accelerates the registration speed, and can be used for SAR image fusionand change detection.

The invention discloses a joint registration method and system for fundus multispectral images. According to the method and system, a fundus multispectral image is preprocessed to remove a black edgebackground; SIFT feature points of images in a multispectral sequence are respectively extracted; a matching loss is calculated through matching a loss function according to positions of the extractedSIFT feature points, so as to construct a matrix; coded representation is carried out on the feature points in the images so as to construct a secondary optimization model; a projection power iteration algorithm is executed for the secondary model so as to carry out optimal non-convex solution; and a transformation matrix is solved via calculation through a corresponding relationship among the feature points. The method and system are more comprehensive than information considered by traditional paired image registration; and practices prove that the method and system allow the missing of paired relationships and have certain error correction ability for wrong paired relationships, so that the robustness of the algorithm is ensured and the registration precision is improved.