31 results about "Digital restoration" patented technology

The invention discloses an image restoring method based on isotropic diffusion and sparse representation, which comprises the following steps: dividing a defective region of an image into a homogenous region and a complex region according to information of a surrounding image of the defective region; restoring the homogenous region by an isotropic diffusion method; restoring the complex region by a sparse representation method; and fusing restoration results of the restored homogenous region and the restored complex region to obtain a restoration result of the defective region, and replacing a defective part of a source image with the restoration result of the defective region to obtain a final restoration result image. The restoration result image is superior to results generated by the prior like restoring method; the method has high restoring speed, is suitable to be applied to restoring real pictures and composite images with complicated texture and structure characteristics; moreover, the method is also applicable to digital restoration of artworks and post production of film and TV programs.

The invention discloses a method for digital restoration of an urban spatial pattern, which belongs to the field of the restoration of urban spaces. The method comprises the following steps: registration and scanning of a historically old map: registering and correcting through making full use of ArcGIS software and remote sensing data of a city to be restored, and registering the historically old map into the present remote sensing data; restoration of a historical urban space; correction of errors in restoration results of the historical urban space: correcting the errors in the restoration results with the spatial analysis method of the ArcGIS and the mathematical statistics, thereby realizing the digital restoration of the urban spatial pattern. With the adoption of the 3S technology, the invention changes the conventional method for spatial pattern restoration simply depending on paper drawings and verification of historical documents, effectively improves the drawing efficiency and quality of the historical urban map, forms 'a map' of urban spatial patterns in different historic periods based on the unified spatial scale, the unified spatial reference and the unified spatial classification, and guarantees the restoration, management, presentation and application of the urban spatial patterns.

Disclosed herein are a system and method for creating multimedia files for digital cinema advertising. The system including a digitizing device, an up-conversion device, a digital restoration device, a color correction device, a signal insertion device, a multiple channel conversion device, a multitrack recording device, a synchronization device, and a Storage Area Network (SAN). The digitizing device outputs multimedia content as a digital video file and a digital audio file. The up-conversion device converts the frame rate of the digital video file into a frame rate appropriate for a DCI standard. The digital restoration device restores the degradation of the image quality of the digital video file. The color correction device improves the colors of the video of the digital video file. The signal insertion device inserts various predetermined signals into the digital video file and the digital audio file. The multiple channel conversion device divides the digital audio file into multiple channels. The multitrack recording device generates a combined digital audio file. The synchronization device synchronizes the digital video file with the digital audio file using the sync signal. The mastering device performs mastering on the synchronized digital video and audio files using standard encoding, and thus generating a final master digital multimedia file. The SAN temporarily stores intermediate results generated by the respective devices.

An automatic process for performing CMY (Cyan, Magenta, Yellow) registration for film digital restoration. After three color components Cyan, Magenta, and Yellow of a picture are scanned into files, each component is divided into blocks, and edge detection is applied to each block, and an edge match is performed. The data of displacements is processed, and then an affine transform parameters are calculated. The affine transform is then applied for each block, and warping is used to combine the color components and obtain the registered picture of a color component.

An automatic process for performing CMY (Cyan, Magenta, Yellow) registration for film digital restoration. After three color components Cyan, Magenta, and Yellow of a picture are scanned into files, each component is divided into blocks, and edge detection is applied to each block, and an edge match is performed. The data of displacements is processed, and then affine transform parameters are calculated. The affine transform is then applied for each block, and warping is used to combine the color components and obtain the registered picture of a color component.

Disclosed is a method, a system, and a user interface for determining a preferred relative arrangement of digital restoration designs and digital representations of multi-shaded milling blocks for use when manufacturing dental restorations from multi-shaded milling blocks. A preferred first relative arrangement of a first digital restoration design and a digital representation of a first multi-shaded milling block is determined, and therefrom a preferred second relative arrangement of a second digital restoration design and a digital representation of a second multi-shaded milling block is determined.

The invention discloses a manufacturing method of a digital PEAK substrate restoration. The manufacturing method includes the following steps that S1, the oral cavity of a patient is scanned with a scanner, a digital model of the upper jaw and the lower jaw of the patient are obtained, and an occlusion relationship is obtained; S2, based on the digital model in combination with design software, adigital restoration model is designed; and S3, PEEK / PEKK materials are in combination with a digital restoration model to manufacture the restoration. The invention further discloses a bonding methodof the digital PEAK substrate restoration with a tooth body. The digital scanning technology is used for scanning to obtain the digital model of the oral cavity of the patient, the discomfort caused to the patient by a traditional model obtaining method is solved, the treatment effect is ensured, and in addition, the restoration made of the PEEK / PEKK materials has the advantages such as good strength, durable wear resistance, aging resistance, large space for improvement in aesthetic performance, excellent biocompatibility, semi-blocking radiation, light weight and low cost.

The invention discloses a digital restoration method for flaking diseases of ancient wall paintings based on compressed sensing, and an intelligent terminal system. The method employs a wall painting image preprocessing module, a wall painting flaking disease marking module and a wall painting image restoration module. The method comprises the steps: enabling the wall painting image preprocessing module to carry out the image denoising and HSV color space transformation, enabling the wall painting flaking disease marking module to achieve the V component extraction of a wall painting image, drawing a brightness contour map through a contour function, carrying out the threshold segmentation of the brightness contour map, and obtaining wall painting segmented images; obtaining a closed interval of a disease region through the morphological corrosion operation, carrying out the overlapping of the segmented images and a damaged wall painting image, and marking the flaking disease region of the wall painting; enabling the wall painting image restoration module to carry out the restoration of the flaking disease region of the wall painting through an image restoration algorithm based on compressed sensing of a PMLE mechanism and an EM mechanism. The method can independently complete the marking of the flaking disease region in the ancient wall painting and the intelligent restoration, and provides support for the digital virtual display of the wall painting.

The herein invention discloses and claims a quantitative image restoration in bright field (QRBF) method that faithfully recovers shape and enables quantify size of individual unstained samples. The QRBF method restores out-of-focus BF images of unstained samples by applying deconvolution, which enhances contrast and allows for quantitative analysis. To perform deconvolution our procedure uses a point spread function modeled from theory. Image deconvolution can be performed even from a single input image in two dimensions (2D-QRBF), and quantitative information such as size and shape of samples can be determined from restored 2D-QRBF images. Application of 2D-QRBF in a high-throughput screening process to assess shape changes in cells during hyperosmotic shock shows that the described digital restoration approach is suitable for quantitative analysis of unstained BF images in high-throughput image cytometry.

The invention discloses a portrait stone crack intelligence extraction and virtual restoration method. The method comprises the following steps of 1) acquiring a digital image of a portrait stone and preprocessing the digital image of the portrait stone; 2) for the preprocessed digital image of the portrait stone, using a crack extraction algorithm based on an editing distance to carry out crack disease calibration so as to acquire a mask image, and then acquiring a labeled graph of a crack disease in the portrait stone according to the mask image; 3) using a Criminisi restoration algorithm based on a MRF matching criterion to carry out digital restoration on the digital image of the portrait stone according to the labeled graph of the crack disease in the portrait stone which is acquired from the step 2), generating the restored digital image of the portrait stone and then displaying the restored digital image of the portrait stone. The method can be used to satisfy the restoration of the digital image of the portrait stone.

The invention discloses a method for digital restoration of an urban spatial pattern, which belongs to the field of the restoration of urban spaces. The method comprises the following steps: registration and scanning of a historically old map: registering and correcting through making full use of ArcGIS software and remote sensing data of a city to be restored, and registering the historically old map into the present remote sensing data; restoration of a historical urban space; correction of errors in restoration results of the historical urban space: correcting the errors in the restorationresults with the spatial analysis method of the ArcGIS and the mathematical statistics, thereby realizing the digital restoration of the urban spatial pattern. With the adoption of the 3S technology,the invention changes the conventional method for spatial pattern restoration simply depending on paper drawings and verification of historical documents, effectively improves the drawing efficiency and quality of the historical urban map, forms 'a map' of urban spatial patterns in different historic periods based on the unified spatial scale, the unified spatial reference and the unified spatialclassification, and guarantees the restoration, management, presentation and application of the urban spatial patterns.

Disclosed herein are a system and method for creating multimedia files for digital cinema advertising. The system including a digitizing device, an up-conversion device, a digital restoration device, a color correction device, a signal insertion device, a multiple channel conversion device, a multitrack recording device, a synchronization device, and a Storage Area Network (SAN). The digitizing device outputs multimedia content as a digital video file and a digital audio file. The up-conversion device converts the frame rate of the digital video file into a frame rate appropriate for a DCI standard. The digital restoration device restores the degradation of the image quality of the digital video file. The color correction device improves the colors of the video of the digital video file. The signal insertion device inserts various predetermined signals into the digital video file and the digital audio file. The multiple channel conversion device divides the digital audio file into multiple channels. The multitrack recording device generates a combined digital audio file. The synchronization device synchronizes the digital video file with the digital audio file using the sync signal. The mastering device performs mastering on the synchronized digital video and audio files using standard encoding, and thus generating a final master digital multimedia file. The SAN temporarily stores intermediate results generated by the respective devices.

The herein invention discloses and claims a quantitative image restoration in bright field (QRBF) method that faithfully recovers shape and enables quantify size of individual unstained samples. The QRBF method restores out-of-focus BF images of unstained samples by applying deconvolution, which enhances contrast and allows for quantitative analysis. To perform deconvolution our procedure uses a point spread function modeled from theory. Image deconvolution can be performed even from a single input image in two dimensions (2D-QRBF), and quantitative information such as size and shape of samples can be determined from restored 2D-QRBF images. Application of 2D-QRBF in a high-throughput screening process to assess shape changes in cells during hyperosmotic shock shows that the described digital restoration approach is suitable for quantitative analysis of unstained BF images in high-throughput image cytometry.

The invention discloses an image damage detection method, electronic equipment and a storage medium. The method comprises the following steps: acquiring a to-be-detected real damaged image, acquiring a preset damage type, processing the acquired real damaged image to obtain a first image damaged mask corresponding to the real damaged image, performing simulation processing on the real damaged image based on the preset damage type to obtain a second image damaged mask, and according to the first image damage mask and the second image damage mask, obtaining a target image damage mask, and obtaining all defect areas in the real damage image. Two detection methods are adopted, namely, the real damage image is detected, simulation detection is conducted on the real damage image, the first image damage mask and the second image damage mask are generated respectively, the detection data and the diversity of the detection data are increased, the detection accuracy of the defect area in the image can be improved, and then digital restoration of the real damage image is achieved.

A method for digital restoration of historic morphology of a river, comprising: selecting, on the basis of the selection of a river segment where the development of an alluvial stream and terraces is complete, a representative cross section of a river segment planned to be recovered; obtaining a sediment core sample by drilling; layering sediments according to physical properties thereof; recording three-dimensional space coordinates of each layer, then performing age determination on each sediment layer, and finally connecting the three-dimensional space coordinates of the sediment layers of equal age in different sediment cores on the same section in general drawing software by using lines, wherein the obtained section morphology is river section morphology under the age; and linking the coordinates of all ages in sequence, that is, morphology recovery of the entire section in all history ages is completed, and historic morphology restoration of the entire river segment can be completed after multiple sections are recovered. By means of cross utilization of a geology age measuring technology and a river dynamics section molding principle, the method can be applied to most alluvial river historic morphology restoration, and has important practical value for the study of a river landform evolution process.

The invention discloses a method for constructing a natural tooth type database, comprising the following steps: 1. Recording object information; 2. Obtaining a digital model; 3. Segmenting dentition data; 4. Modifying tooth shape; 5. Mirror image processing; 6. . Tooth type anatomical landmark area editing; 7. Dental data positioning editing; 8. Natural tooth type database import. The invention also discloses a system for constructing a natural tooth type database. The present invention is a method and system for constructing a natural tooth type database. The construction of the natural tooth type database is completed through the above-mentioned technology, which solves the problems of tooth type mismatch, single shape, lack of natural shape texture, and poor aesthetics in the current digital design of dental restoration; Moreover, the natural tooth database constructed by this method can be used in any digital restorative design, such as crowns, bridges, veneers, inlays, removable partial dentures, and complete dentures; Matching profile data.

A method of restoring paintings includes steps for acquiring image data of a painting having a deteriorated part evidencing deterioration including at least one selected from among fading, exfoliation, and damage or loss of the support; generating digital restoration data in which the damaged part of the image data is restored by digital simulation using a computer; printing the digital restoration data on a backing of the painting using ink; and lamination of the printed backing material of the painting to the back of the painting.

The invention relates to the technical field of dental restoration, and discloses a full-digital restoration method of an oral zirconia crown, which comprises the following steps: pre-scanning teeth to obtain an original form; carrying out prosthesis design through Exocad dental design software; cutting a temporary resin crown on a lathe according to a design file; adjusting the design draft according to the clinical try-on result of the temporary crown, or re-scanning the temporary crown after clinical adjustment, and updating the design draft; and according to the final design file, manufacturing a final restoration through a 3D colloidal deposition process. Through the clinical verification effect of the temporary crown, the clinical zero grinding of the final prosthesis can be realized. The method is novel in design and simple in process, and has the advantages of high digitization degree, short time consumption and high efficiency.

The present invention provides a rough surface crack generation method and test system based on digital image technology, which relates to the technical field of rock mechanics testing. The steps include: A. Loading a rock specimen, forming a through crack in the specimen, and removing debris on the surface of the specimen. ; B. Scan the rough crack surface with a scanner to obtain a digital image of the rough crack surface; C. Process the digital image, including noise removal and threshold segmentation; D. Normalize the RGB values ​​of the digital image , obtain the normalized matrix, establish a spatial coordinate system, and obtain the image digital matrix restoration ratio; E. Calculate the digital restoration matrix; F. Complete the simulation of rough surface cracks and restore complete spatial cracks; the test system includes shells and columns , telescopic cylinder array, control system and hydraulic circuit. The invention provides a method for studying the physical and mechanical laws of seepage in rough rock cracks, and accurately describes the roughness structure of rock cracks.

The invention provides an implant scanning device for oral implant digital restoration, and relates to the technical field of oral medical equipment.The implant scanning device comprises a main body, a rotating shaft is rotationally installed on the side face of the main body, anti-slip strips are installed at the top and the bottom of the main body, and a scanning probe is installed at the bottom of the side face of the main body; a supporting assembly is installed on the side face of the body. The supporting assembly comprises a transverse groove, and the transverse groove is formed in the side face of the main body; and the turnover mechanism is installed on the side face of the main body, the turnover mechanism comprises a connecting plate, and a groove is formed in the side end of the connecting plate. According to the size of the oral cavity of the patient, the side plates of the arc-shaped structures support the two sides of the lips of the patient, it is guaranteed that the scanning device moves, the implant condition is rapidly scanned, the treatment efficiency is improved, and the problems that when an existing scanning device is used, the lips of the patient are closed together when the scanning device moves, and the operation is inconvenient are solved. And the moving path of the scanning device is influenced.

The invention discloses a mesh model area division method for denture digital restoration, including adjusting the direction of all intersection lines in the tooth model according to a preset positive direction; calculating the enclosing area of ​​each intersection line; Computational processing is performed on each encircled area, and the divided area is obtained and output. The present invention effectively solves the problem of division of multiple regions of the model, and can quickly and accurately divide the model into mutually independent regions when there are multiple intersection lines on the surface of the model, and does not need to care about the nesting relationship of model entities. As long as the intersection line of a model is determined, the area can be divided, which greatly improves the scope of application, and gets rid of the limitation that the area can only be divided according to one intersection line. The invention can be widely applied in the technical field of dentures.

Disclosed is a method, a system, and a user interface for determining a preferred relative arrangement of digital restoration designs and digital representations of multi-shaded milling blocks for use when manufacturing dental restorations from multi-shaded milling blocks. A preferred first relative arrangement of a first digital restoration design and a digital representation of a first multi-shaded milling block is determined, and therefrom a preferred second relative arrangement of a second digital restoration design and a digital representation of a second multi-shaded milling block is determined.

The invention discloses a digitized restoration research method for hollowed-out woodcarving in the technical field of woodcarving restoration. The digitized restoration research method comprises the following steps: selecting a research sample; obtaining an external model by using a photographic scanning method; using CT hierarchical scanning to obtain an internal model structure; processing for 3D printing reproduction of the model; the model processing module is used for 3D virtual display; according to the method, digital restoration is conducted on the wood carving through the photographic 3D scanning and CT profile imaging technology, the former solves the problem of an external visible model structure, the CT technology solves the problem of an internal hollowed-out model structure, and the 3D wood carving model complex in modeling is reconstructed by combining the former and the CT technology; the model restored by the technology can be used for 3D printing, can also be used for network virtual reality reproduction, is wide in application range, and has great significance for traditional cultural relic protection.

The invention discloses an image restoring method based on isotropic diffusion and sparse representation, which comprises the following steps: dividing a defective region of an image into a homogenousregion and a complex region according to information of a surrounding image of the defective region; restoring the homogenous region by an isotropic diffusion method; restoring the complex region bya sparse representation method; and fusing restoration results of the restored homogenous region and the restored complex region to obtain a restoration result of the defective region, and replacing adefective part of a source image with the restoration result of the defective region to obtain a final restoration result image. The restoration result image is superior to results generated by the prior like restoring method; the method has high restoring speed, is suitable to be applied to restoring real pictures and composite images with complicated texture and structure characteristics; moreover, the method is also applicable to digital restoration of artworks and post production of film and TV programs.

The invention discloses a standard dental crown positioning method used for a false-tooth digital restoration system. The method comprises the following steps of according to a positioning type of a standard dental crown, introducing a corresponding reference object; according to the positioning type of the standard dental crown, carrying out automatic identification and / or automatic adjusting anddetermining an abutment tooth coordinate system; and according to the reference object, using an improved automatic positioning method to position a transferred standard dental crown in the determined abutment tooth coordinate system, and outputting a positioning result of the standard dental crown, and in the improved automatic positioning method, according to a high spot of a contour of the reference object and a high spot of a contour of the standard dental crown, zooming and translating the standard dental crown. In the invention, automatic identification, automatic adjusting and automatic positioning methods are integratedly applied to position the standard dental crown; the method does not depend on manual operation; an automation degree and efficiency are high; an operation requirement on a user is low; and an error of the manual operation because of a visual angle problem is avoided and precision is high. The method can be widely applied to the dental restoration field.

The example of the present invention provides a binary image correction method based on a self-contained frame, which is applied to digital restoration of paper images. The image correction method includes: scanning the image to be corrected into a grayscale image, and then binarizing it with an empirical value; performing morphological expansion, filtering, and opening operations on the binarized image, and then fitting the above , bottom, left, and right four frame equations; use a set calibration map, print and scan it, and use it to generate a table of vertical and horizontal offset coefficients. The grid is constructed according to the border equation of the image to be corrected and the vertical and horizontal offset coefficient tables, and finally the value of the corresponding pixel after restoration is determined according to the ratio of the number of black and white pixels in each grid. The application of the method can effectively solve the rotation, scaling and non-uniform distortion of the image caused by printing and scanning, the corrected image has little difference from the original image, and the restoration effect is ideal.

The invention discloses a high-fidelity digital restoration method for fading color murals, which includes a comprehensive mural paint database composed of basic pigment samples used in murals, fading simulation experiment samples and mixed pigment samples constructed by double-constant Kubelka-Munk theory. As a reference for the identification of mural paints; obtain the visible spectrum images of ancient murals; render the visible spectrum images to obtain the corresponding color RGB images; use the deep learning segmentation model unet to finely segment the color RGB images; calculate the representativeness of each sub-region Average spectral reflectance, and extract the spectral features of each sub-region; through feature matching, carry out pigment identification and analysis on each sub-region; based on the pigment recognition results and the representative average spectral reflectance of each sub-region, carry out color high-fidelity for each sub-region Restoration; by setting the adjustment parameter alpha, the simulated reproduction of fading and discoloration of color murals is realized; finally, high-fidelity digital restoration of faded and discolored mural colors is completed.

A method of restoring paintings that can shorten the time of restoration work. The present invention also offers a method of restoring paintings which can reduce variability in quality due to differences in the workmens' skills is provided. A method of restoring paintings comprising steps for acquiring image data of a painting having a deteriorated part evidencing deterioration including at least one selected from among fading, exfoliation, and damage or loss of the support; generating digital restoration data in which the said damaged part of the said image data is restored by digital simulation using a computer; printing the digital restoration data on a backing of the painting using ink; and lamination of the said printed backing material of the painting to the back of the painting.

This application discloses a digital repair method for the traditional remaining patterns of Tujia brocade, which includes automatic detection of damaged areas, decomposition of image structure components and texture components, variational PDE repair of structural components and texture synthesis repair of texture components. Specifically, it includes the following steps: Establishing a method of Tujia brocade Automatic detection and positioning model of damaged areas in digital images; constructing a variational image decomposition model to decompose Tujia brocade images into structural components and texture components; designing a variational PDE model to repair the structural components of Tujia brocade, and designing a sample-based texture synthesis algorithm to repair Tujia brocade Texture component; finally, the repaired structural component and texture component are synthesized to obtain a complete restoration of the Tujia brocade digital image. This application uses digital technology to restore the traditional remaining patterns of Tujia brocade. It can find the most satisfactory repair effect through multiple attempts without destroying the original brocade, which provides a safe and convenient way for the restoration of Tujia brocade.