Abstract: A method for correcting a digital subtraction angiography image is disclosed. The method includes: performing a first registration on a first scan image and a reference image to obtain a second scan image; performing a second registration on a region of interest of the second scan image and a region of interest of the reference image to obtain a third scan image; calculating a buffer area between the third scan image and the second scan image, and performing transition processing on the buffer area, to obtain a processed buffer area image; and fusing the second scan image, the third scan image, and the processed buffer area image to obtain a corrected scan image. A computer device and a non-volatile computer readable storage medium are also disclosed.

Abstract: Disclosed is a method of high-precision 3D reconstruction of existing railway track lines based on UAV multi-view images, including: acquiring initial data, acquiring a UAV image rail top centerline, calculating a rail top centerline based on a nonlinear least squares method, and calculating three-dimensional coordinates of the rail centerline. Based on the multi-view geometry principle in computer vision and photogrammetry, object space coordinates of the line can be directly calculated by using image information, which does not require outdoor workers to work online and can effectively improve the safety of railway operation line surveying and mapping. Therefore, this method has important engineering application value and application prospect.

Abstract: A method for artifact removal of a medical image and a DSA system are provided. The method includes: acquiring an image set of a collected position in a target portion, the image set including a mask image and a contrast image in one-to-one correspondence; performing global registration on the mask image and the contrast image of the collected position, and obtaining a first registration result; performing local registration on the image set after the global registration based on the first registration result, and obtaining a corresponding second registration result; and performing subtraction on the image set after the local registration based on the second registration result, and obtaining a subtraction image of the target portion.

Abstract: The present application provides a display device (01) and an assembly method for display device. The display device (01) includes a backlight module (02), a display panel (03), and a circuit board (22). The backlight module (02) includes a back plate (21) including a first side plate (211), a second side plate (212), and a bottom plate (213). The second side plate (212) is disposed opposite to the first side plate (211). The bottom plate (213) is disposed on a side of the first side plate (211) close to the second side plate (212). A groove body (214) is provided between the bottom plate (213) and the second side plate (212), the groove body (214) has a groove (A) on a side of the bottom plate (213) away from the display panel (03), and the circuit board (22) is disposed in the groove (A).

Abstract: A shape-morphing structure includes a cold draw programmable grayscale digital light processing 3D printed unitary hinge component comprising at least one glassy state portion and at least one rubbery state portion. The at least one glassy state portion has a glassy state recovery temperature and the at least one rubbery state portion has a rubbery state recovery temperature and different than the glassy state recovery temperature.

Abstract: Embodiments of the present disclosure provide a method and a system for determining an image control point. The method may include obtaining a first image; determining a plurality of initial control points in the first image; dividing the first image into at least two sub-regions; and determining, based on one or more features of the plurality of initial control points, one or more target control points in each of the at least two sub-regions.

Abstract: A 3D printed physical information storage unit includes a grayscale digital light processing (g-DLP) 3D printed monolithic component formed from a resin containing a donor moiety, an acceptor moiety, a rigid moiety, a photoinitiator, and a photoabsorber. The g-DLP 3D printed monolithic component has a first portion with a first Young's modulus and a second portion with a second Young's modulus that is different than the first Young's modulus such that the g-DLP 3D printed monolithic component subjected to a predefined strain exhibits a strain field that provides a machine readable optical image.

Abstract: Systems and methods for medical image processing. The method may include obtaining a contrast image of an object and at least one mask image of the object. The method may further include extracting a plurality of target structures from the at least one mask image by using one or more preset processing algorithms. The method may further include generating a subtracted image by subtracting the plurality of target structures from the contrast image.

Abstract: A sensor includes a grayscale digital light processing (g-DLP) 3D printed monolithic substrate with at least one microfluid channel. The monolithic substrate is formed from a resin configured to form a solid polymer using g-DLP 3D printing with a Young's modulus ranging from 0.1 MPa to 100 MPa. The resin includes a donor moiety, an acceptor moiety different than the donor moiety, a rigid moiety, a photoinitiator, and a photoabsorber. The donor moiety is in the form of an acrylate monomer with a side group, the acceptor moiety is in the form of an acrylate monomer with a side group, and the rigid moiety is in the form of an acrylate monomer with a side group. Also, the sensor can include a sensor fluid disposed within the at least one microfluid channel.

Abstract: A resin for adhesive bonding to fabrics includes between about 80 wt. % and about 90 wt. % of a monomer, between about 10 wt. % and about 20 wt. % of a cross-linking agent with two or more acrylic acid groups separated by a flexible linker, between about 0.5 wt. % and about 1.5 wt. % of a photoinitiator, and between about 10 wt. % and about 15 wt. % of a thickening agent. The monomer as a melting point less than 25° C. and the flexible linker has subunits such as methylene glycol, ethylene glycol, propylene glycol, butylene glycol, and combinations thereof. Also, the resin forms a bond with polyurethane coated nylon fabric and the bond exhibits an adhesion strength greater than a tensile strength of the polyurethane coated nylon fabric.

Abstract: A resin for grayscale digital light processing 3D printing includes a donor moiety, an acceptor moiety, a rigid moiety, a photoinitiator, and a photoabsorber. The donor moiety is an acrylate monomer with a side group of a free carbonyl, a primary amine on an acrylate, a secondary amine on an acrylate, and/or a tertiary amine on an acrylate. The acceptor moiety is different than the donor moiety and is an acrylate monomer with a side group of a free hydroxy, a primary amine, secondary amine, and/or an imine. And the rigid moiety is acrylate monomer with a side group of a cyclohexyl, a substituted cyclohexyl, or a bicyclic structure. A monolithic structure formed from the resin using grayscale digital light processing 3D printing can have a Young's modulus ranging from 0.1 MPa to 100 MPa.

Abstract: Methods for recycling thermoset polymers, particularly by changing them into dynamic networks with the use of an appropriate catalyst solution which transforms the thermoset polymer into a vitrimer-like composition. The methods include the step of swelling a crosslinked thermoset polymer in a solution including a catalyst, whereby the catalyst diffuses into the thermoset polymer, in particular into the thermoset network. Upon removal of the liquid portion of the solution, such as solvent, the catalyst facilitates the occurrence of exchange reactions at elevated temperatures, rendering the system a dynamic network. The vitrimerized composition having the thermoset polymer and catalyst is recyclable and processable and thus suitable for many end uses.

Abstract: Disclosed is a method of high-precision 3D reconstruction of existing railway track lines based on UAV multi-view images, including: acquiring initial data, acquiring a UAV image rail top centerline, calculating a rail top centerline based on a nonlinear least squares method, and calculating three-dimensional coordinates of the rail centerline. Based on the multi-view geometry principle in computer vision and photogrammetry, object space coordinates of the line can be directly calculated by using image information, which does not require outdoor workers to work online and can effectively improve the safety of railway operation line surveying and mapping. Therefore, this method has important engineering application value and application prospect.

Abstract: Thermosetting plastics are recycled by process that begins with grinding the plastic into small pieces. This particulate is then mixed with a catalyst and ball mill milled to a fine powder, which can then be reprocessed via molding (e.g., hot-press, injection, etc.).

Abstract: Thermosetting plastics are recycled by process that begins with grinding the plastic into small pieces. This particulate is then mixed with a catalyst and ball mill milled to a fine powder, which can then be reprocessed via molding (e.g., hot-press, injection, etc.).

Abstract: Methods for recycling thermoset polymers, particularly by changing them into dynamic networks with the use of an appropriate catalyst solution which transforms the thermoset polymer into a vitrimer-like composition. The methods include the step of swelling a crosslinked thermoset polymer in a solution including a catalyst, whereby the catalyst diffuses into the thermoset polymer, in particular into the thermoset network. Upon removal of the liquid portion of the solution, such as solvent, the catalyst facilitates the occurrence of exchange reactions at elevated temperatures, rendering the system a dynamic network. The vitrimerized composition having the thermoset polymer and catalyst is recyclable and processable and thus suitable for many end uses.

Abstract: Thermosetting plastics are recycled by process that begins with grinding the plastic into small pieces. This particulate is then mixed with a catalyst and ball mill milled to a fine powder, which can then be reprocessed via molding (e.g., hot-press, injection, etc.).

Abstract: The present invention provides a packaging structure and a packaging method, the packaging structure includes a first flat plate portion, a second flat plate portion, a folding portion connected between the first flat plate portion and the second flat plate portion, and a fastening structure to fasten the first flat plate portion and the second flat plate portion, the folding portion is configured to fold the first flat plate portion and the second flat plate portion to make a display panel sandwiched between the buffer layer of the first flat plate portion and the buffer layer of the second flat plate portion.

Abstract: The present invention provides a packaging structure and a packaging method, the packaging structure includes a first flat plate portion, a second flat plate portion, a folding portion connected between the first flat plate portion and the second flat plate portion, and a fastening structure to fasten the first flat plate portion and the second flat plate portion, the folding portion is configured to fold the first flat plate portion and the second flat plate portion to make a display panel sandwiched between the buffer layer of the first flat plate portion and the buffer layer of the second flat plate portion.

Abstract: Methods for recycling thermoset polymers, particularly by changing them into dynamic networks with the use of an appropriate catalyst solution which transforms the thermoset polymer into a vitrimer-like composition. The methods include the step of swelling a crosslinked thermoset polymer in a solution including a catalyst, whereby the catalyst diffuses into the thermoset polymer, in particular into the thermoset network. Upon removal of the liquid portion of the solution, such as solvent, the catalyst facilitates the occurrence of exchange reactions at elevated temperatures, rendering the system a dynamic network. The vitrimerized composition having the thermoset polymer and catalyst is recyclable and processable and thus suitable for many end uses.