481 results about "Three dimensional shape" patented technology

The invention discloses an optical fiber three-dimensional shape sensor based on an optical frequency domain reflection technology and an application method of the optical fiber three-dimensional shape sensor, the optical fiber three-dimensional shape sensor comprises a base material and more than three optical fibers, and all the optical fibers are spirally wound and fixed on the surface of the base material at equal intervals and constant screw pitches to form distributed sensing units; according to the application method, measurement signals of all the optical fibers are obtained, and axial strain and strain are calculated; calculating the total curvature vector of the reconstruction curve of the measured object; calculating a bending direction angle and a curvature of the reconstruction curve of the measured object; performing differential calculation on the bending direction angle to obtain the torsion rate of the reconstructed curve of the measured object; and reconstructing the three-dimensional shape of the measured object according to the curvature and the torsion of the reconstructed curve of the measured object. The invention aims to realize synchronous measurement of bending, torsion and axial strain by using a distributed sensing unit formed by a multi-fiber structure which is spirally wound at the same interval and at a constant screw pitch.

The invention provides a three-dimensional shape generation method, which comprises the following steps of: extracting condition characteristics of a two-dimensional image by using an image encoder; sampling an initial noise vector from the standard normal distribution based on the condition features; under the guidance of the condition features, the trained generative model generates potential representation based on the initial noise vector; a decoder of the trained 3D VAE model reconstructs a continuous field function according to the potential representation; and extracting a three-dimensional triangular mesh model from the continuous field function. The smoothness of the generated surface and the integrity of the three-dimensional structure can be realized by the 3D VAE model, so that the aims of eliminating stepped artifacts and broken thin shells are fulfilled.

A system and method directed to detecting placement of a medical device within a patient body, the system including a medical device including a multi-core optical fiber having a plurality of core fibers. Each of the plurality of core fibers can include a plurality of sensors each configured to reflect a light signal having an altered characteristic due to strain experienced by the multi-core optical fiber. The system can further include logic configured to determine a 3D shape of the medical device in accordance with the strain of the optical fiber. The logic can be configured to define a reference plane for the 3D shape and render an image of the 3D shape on a display of the system in accordance with the reference plane.

There is provided an information processing apparatus and method that enable to more easily achieve scalable decoding of point cloud data. In encoding of a point cloud representing an object having a three-dimensional shape as a set of points, control is performed so as to prohibit combined use of scalable encoding that is an encoding method for generating scalably decodable coded data and scaling encoding that is an encoding method involving a change in a tree structure of geometry data. The present disclosure can be applied to, for example, an information processing apparatus, an image processing apparatus, an encoding device, a decoding device, an electronic device, an information processing method, a program, or the like.

A lyophilization container includes a first section having a first layer, a second layer aligned with the first layer, and a cavity defined by the alignment of the first and second layers, where at least one of the first and second layers is preformed to have a three-dimensional shape. A lyophilization fixture includes a base member and a lid member. The lid member is movable between a first position and a second position relative to the base member. The base member and lid member together define a housing that receives at least a portion of a lyophilization container.

A lyophilization container includes a first section having a first layer, a second layer aligned with the first layer, and a cavity defined by the alignment of the first and second layers, where at least one of the first and second layers is preformed to have a three-dimensional shape. A lyophilization fixture includes a base member and a lid member. The lid member is movable between a first position and a second position relative to the base member. The base member and lid member together define a housing that receives at least a portion of a lyophilization container.

The invention relates to the technical field of defect detection imaging, and discloses a high-precision three-dimensional imaging method and system based on continuous magnetic flux leakage data. Collecting surface magnetic flux leakage signals of a measured target to form an initial signal set, and extracting feature vectors by using a convolutional neural network model; separating three-dimensional space data, and obtaining initial three-dimensional position coordinates of the defect through an iterative mapping algorithm; mining spatial geometric features, determining potential geometric boundaries, and fusing data to construct a refined position model; extracting a detection subset, correcting a shape error, constructing a space reconstruction grid, filling holes, and obtaining a complete three-dimensional shape representation; and through precision calibration and signal matching verification, a high-precision three-dimensional image is output. According to the method, the defect positioning and shape reconstruction precision can be effectively improved, the imaging integrity and accuracy are guaranteed, the problems of fuzzy positioning and shape distortion of traditional magnetic flux leakage imaging are solved, and the defect detection requirements of a complex detected target are met.

To provide a bag with a stirring function and a stirring device that can reduce transportation costs. [Solution] The stirring bag 1 is characterized by comprising: a strip portion 111 cut from a flexible flat plate; a shape-changing portion 12 that receives a predetermined driving force to raise the strip portion 111 to form a three-dimensional shape and dynamically deforms the three-dimensional shape to make the strip portion 111 function as a blade for stirring the object to be stirred 1a; and a bag 13 that contains the strip portion 111, at least one part of the shape-changing portion 12, and the object to be stirred 1a, and which, when empty and not containing the object to be stirred 1a, can be folded together with the shape-changing portion 12 into a flat, foldable sheet that encloses the flat strip portion 111.

The present disclosure provides: a three-dimensional molecule having a specific three-dimensional shape; and a method for producing the same. In one aspect, the present disclosure provides a three-dimensional molecule having a polyhedral shape. The polyhedron may be a bipartite biregular polyhedron which satisfies (p, q) biregularity, or a vertex-deficient form thereof or a barrel-type vertex-deficient form derivative (where p and q are each independently selected from integers of 2 to 6). A three-dimensional molecule according to the present disclosure can have a closed three-dimensional structure, unlike a metal organic framework (MOF) in which the number of appearances of a repeating structure is not limited.

A capacitance sensor 1A comprises: a decorative layer 21 having a three-dimensional shape; and a wiring assembly 3 joined to the decorative layer 21. The wiring assembly 3 comprises: a molded base member 4 that has a three-dimensional shape and is joined to the decorative layer 21; and a wiring board 5 that has a circuit part 5a in which an electric circuit is formed, and that is stacked onto the molded base member 4 so as to face the inner surface 21b of the decorative layer 21. The circuit part 5a is not joined to the decorative layer 21.

There is provided an information processing apparatus and method to make it possible to reduce a decrease in encoding efficiency. A predictive residual that is a difference between a reflected light intensity that is attribute data of a point cloud representing an object having a three-dimensional shape as a set of points and a predicted value of the reflected light intensity generated by using a reflection model of light on a surface of the object is generated by decoding encoded data of the predictive residual, a coefficient of the reflection model is derived, a predicted value is derived by performing prediction processing by using the reflection model and the coefficient, and the reflected light intensity is generated by adding the predictive residual obtained by decoding the encoded data and the derived predicted value. The present disclosure can be applied to, for example, an information processing apparatus, an electronic device, an image processing method, a program or the like.

A housing 1 for a centrifugal compressor 40 with a centrifugal impeller 42 has a front cover 2. The front cover 2 defines a central axis 6 and has an axially oriented inlet 8, a diffuser 10 in fluid connection with the inlet 8, a collector 12 in fluid connection with the diffuser 10, and a rear cover opening which is opposite of the inlet 8 and designed to sealingly receive a rear cover 4. The diffuser has a first diffuser wall 30 and the collector has a collector wall 15. The front cover 2 is made of a three-dimensionally shaped base 22 and a separate disk-shaped diffuser wall part 24 which is attached to the three-dimensionally shaped base 22 for forming the diffuser 10 and the collector 12.

Method for creating a 3D digital model of at least one aircraft element in order to produce augmented reality image(s), the method including the steps of: a) scanning, at least one element of an aircraft so as to produce a set of digitised points representative of the 3-dimensional shape of the element, then, using a computer and / or at least one computer processing unit; b) forming, from the set of digitised points, at least one 3D mesh representative of the shape of the element; c) modifying a replica of the given mesh so as to add a missing geometric pattern corresponding, in particular, to a pattern of the element located in its inner volume and / or which is located outside the field of view of the scanner during the scanning in step a).

High-speed scanning is implemented by a three-dimensional scanner, while the convenience of wireless communication is ensured. A three-dimensional measuring device 1 comprises: a three-dimensional scanner 2, which processes a first image including structured light to generate initial measurement information; an image acquisition unit 3, which moves a viewport to position the three-dimensional scanner 2 within the viewport; and a first wireless communication unit, which transmits second measurement information generated by processing a second image containing a marker of the three-dimensional scanner 2.and a 3D data generation unit 4, comprising a second wireless communication unit configured to receive the second measurement information transmitted via the first wireless communication unit, and generating a point cloud that specifies a three-dimensional shape of a measurement object based on the first measurement information generated by the scanner image processing unit and the second measurement information received via the second wireless communication unit.

To provide a three-dimensional shape measuring device capable of reducing measurement errors and performing accurate measurements in pinhole array scanning using a confocal optical system. A three-dimensional shape measurement device according to one embodiment of the present invention is a three-dimensional shape measurement device using a confocal optical system, and includes at least an aperture plate on which a plurality of confocal apertures through which light from a light source passes are arranged two-dimensionally at a predetermined arrangement period, and an aperture plate displacement unit that displaces the aperture plate at a uniform speed in a predetermined direction perpendicular to the optical axis direction so as to change the relative positional relationship between the position of the object-side focusing point and the position of the object to be measured in the direction perpendicular to the optical axis direction. The three-dimensional shape measurement device controls the movement speed of the aperture plate, the rotation speed of the rotor, and the exposure time and exposure timing of the photodetector group so that the exposure time of the photodetector group coincides with the time it takes for the aperture plate to move a distance obtained by multiplying the predetermined arrangement period by an integer n greater than or equal to 2.

The application relates to a three-dimensional continuous shape estimation method and system of a flexible robot, wherein the method combines the arc length of the flexible robot and unknown external loads from the environment with a Cosserat elastic rod model and a Cosserat elastic string model to generate a Lie algebra coupled statics model representing a tendon-driven model, models the external loads as Gaussian process noise to construct a prior probability model, obtains a prior probability distribution of the flexible robot in a Lie algebra space, constructs a measurement noise model in the Lie algebra space according to discrete measurement poses captured by a sensor and measurement noise, obtains a predicted measurement value, fuses the prior probability distribution and the predicted measurement value to obtain a posterior shape estimation of the flexible robot, and calculates a continuous three-dimensional shape estimation of the flexible robot and a first credibility of the continuous three-dimensional shape estimation according to the posterior shape estimation and a Gaussian process interpolation method. Therefore, the application realizes accurate perception of the continuous three-dimensional shape of the flexible robot.

The utility model discloses a kind of ball sheet of sports ball, the shell of sports ball and sports ball, the edge of the ball sheet is undulating three-dimensional edge, the edge is continuous rectangular undulating three-dimensional edge or is triangular undulating three-dimensional edge, the thickness of the edge is less than the thickness of ball sheet.The utility model changes the edge of ball sheet from two-dimensional plane to undulating three-dimensional edge, can greatly increase the bonding area of ball sheet edge, simultaneously by the interweaving of three-dimensional shape, greatly increase the adhesion between ball sheet, further solve the ball sheet joint of existing adhesive ball due to the small adhesion area Small adhesion, there is the problem of ball sheet peeling and water seepage when moving.The thickness of ball sheet edge is less than ball sheet thickness, after ball sheet gluing, certain depth groove is formed between ball sheet, ensure that ball has good aerodynamic performance under the condition of increased adhesion.

A technique disclosed herein creates a 3D shape model with a higher level of detail based on multiple different 3D shape models. Multiple 3D shape models for the same object are obtained and the likelihood (first likelihood) of each of polygons constituting each of the obtained 3D shape models is calculated. Using estimated skeleton data, the multiple 3D shape models with different poses are transformed into the same pose. Then, scale conversion is performed on the pose-transformed 3D shape models containing the pose-transformed skeleton data. The likelihood (second likelihood) of polygons in each certain subregion is calculated from the calculated likelihoods (first likelihoods) of the polygons. Subregions with the highest likelihoods (second likelihoods) of the polygons are extracted from the multiple 3D shape models, and combined to create a single 3D shape model.

To provide a three-dimensional shape measuring device that can match a measured optical path length and a reference optical path length with each other with high accuracy at low cost regardless of the temperature of an installation environment, and a reference surface position adjustment method for the same.SOLUTION: A three-dimensional shape measuring device comprises: a light source unit that emits measuring light being white light; an interference unit that divides part of the measuring light emitted by the light source unit as reference light, emits the measuring light to a surface to be measured and emits the reference light to a reference surface, and generates interference light between the measuring light returning from the surface to be measured and the reference light returning from the reference surface; a holder that accommodates the interference unit and the reference surface, the holder formed of a material that is thermally deformed reversibly according to a change in temperature and changing a reference optical path length that is the optical path length of the reference light between the interference unit and the reference surface according to the change in temperature; and a temperature adjustment unit that, when the optical path length between the interference unit and the surface to be measured is a measured optical path length, adjusts the temperature of the holder to be a target temperature at which the reference optical path length matches the measured optical path length.SELECTED DRAWING: Figure 5

A display processing unit causes a display device to display an endoscopic image of a living tissue in a somatic cavity captured by an endoscope. An operation reception unit receives a user operation that is performed so as to set an area of interest in the endoscopic image. An area-of-interest setting unit sets the area of interest in the endoscopic image based on the user operation. A three-dimensional information acquisition unit acquires three-dimensional shape information of the living tissue captured by the endoscope. A virtual surface derivation unit derives three-dimensional shape information of a virtual surface in the area of interest from three-dimensional shape information of an area different from the area of interest. A size information identification unit identifies information concerning a size of the virtual surface from the three-dimensional shape information of the virtual surface.

The application discloses a three-dimensional CAD model retrieval method and device based on progressive learning and a medium, and the method comprises the following steps: inputting a multi-view two-dimensional image obtained by performing format conversion and multi-angle rendering on a three-dimensional CAD model to be retrieved into a progressive learning network to obtain a query descriptor; determining a target retrieval result based on all target descriptors selected from three-dimensional shape descriptors in a feature library, wherein each three-dimensional shape descriptor in the feature library is uniquely associated with a three-dimensional CAD model. The multi-view image is input into a convolutional neural network with shared weights of the progressive learning network, a global feature generation module, a view attention feature generation module and a classification output head, and then the view image is subjected to progressive learning from global to local, so that the query descriptor retaining complete context information is obtained, the most similar target retrieval result is determined from the feature library, and the accuracy of the three-dimensional CAD model retrieval is improved.

We provide the system. [Solution] A data acquisition method for obtaining actual animal-based food shape data, An artificial intelligence means having a generative model for generating the three-dimensional shape of alternative ingredients from acquired shape data and similar data, A three-dimensional printing method for forming alternative food ingredients three-dimensionally using plant-derived raw materials based on the generated three-dimensional shape, A data processing means for feeding back evaluation data obtained from consumers to the generation model, A system that includes this.

To provide an inventory estimation method that can estimate inventory levels for a wide variety of parts based on a common logic, thereby simplifying registration and management tasks. [Solution] The inventory quantity estimation method involves performing a 3D scan on multiple parts boxes (S11), calculating the three-dimensional shape of the multiple parts boxes using a calculation device based on the results of the 3D scan (S12), calculating the surplus volume, which is the empty volume of the multiple parts boxes, using a calculation device based on the three-dimensional shape of the multiple parts boxes (S13), and if there is a parts box whose calculated surplus volume is greater than a predetermined threshold, the existence of that part box is notified to the worker (S14, S15).

A measurement device includes a processor. The processor acquires three-dimensional data including three-dimensional coordinates of two or more points on a subject and sets a measurement reference. The processor detects one or more feature regions on the subject and outputs an image of a three-dimensional shape of the subject to a display. The processor selects at least one feature region of the one or more feature regions as a measurement target region. The processor generates distance information indicating a distance between the measurement reference and the measurement point, superimposes a measurement result generated based on the distance information on an image of the measurement target region, and outputs the image on which the measurement result is superimposed to the display.

Provided is a grinding system capable of automatically grinding a part to be ground of a work material while suppressing interference between the work material and a grinding tool. The grinding system comprises: a shape measurement device that measures the three-dimensional shape and orientation of the work material; a detection device that detects the position and shape of the part to be ground present on the surface of the work material; a grinding device provided with a grinding tool for grinding the part to be ground; and a control device that generates a path for the grinding tool on the basis of the measured three-dimensional shape and orientation of the work material and the detected position and shape of the part to be ground, and controls the grinding device so that the grinding tool moves along the path. The control device sets an interference risk region on the basis of the measured three-dimensional shape and orientation of the work material, and sets a grinding condition when grinding in the interference risk region.

The application provides a steel plate shape measurement calibration method, belongs to the field of three-dimensional shape measurement and calibration, and aims to realize three-dimensional reconstruction and shape measurement of a steel plate surface. In order to realize high-precision detection of the plate shape, the application obtains X, Y and Z coordinate data of the steel plate surface through a double-line laser measurement system. The measurement system is composed of multiple cameras and two line lasers, the installation positions of the cameras are determined to ensure that the cameras have a certain overlapping field of view, so that the data can be spliced. In the measurement process, the image captured by the camera is processed, the position information of the laser line in the image is extracted, the pixel coordinates are converted into actual world coordinates according to the calibration parameters and the working distance of the camera, and the X, Y and Z three-dimensional coordinate data of the steel plate surface are obtained. Vibration compensation is carried out in the measurement process to ensure the accuracy and stability of the measurement result.

To provide a three dimensional image display device, a three dimensional image display method, and a program capable of facilitating intuitive understanding of a three dimensional shape of a subject.SOLUTION: The three dimensional image display device includes a control unit. The processing circuitry displays a three dimensional shape of a subject on a display based on three dimensional image data including three dimensional coordinates of three or more points on the subject. The processing circuitry sets a reference plane based on one or more points included in the three or more points, and divides the three dimensional image data into a first region and a second region with the reference plane as a boundary. The control unit makes a display state of a three dimensional shape of the subject in one of the first region and the second region different from a display state of a three dimensional shape of the subject in the other of the first region and the second region in order to display a cross section of the subject set based on the reference plane.SELECTED DRAWING: Figure 2

This invention relates to systems and methods for forming fiber preforms for manufacturing parts made of composite materials. This application discloses a method for fabricating a preform for manufacturing parts made of composite materials. The method includes sewing fibers onto a membrane to form a fiber bed in a two-dimensional shape; removing the membrane from the fiber bed; and adjusting the fiber bed into a three-dimensional shape to form the preform.

The application discloses an automatic installation method and device of sound insulation cotton, and a computer program product. The method comprises the following steps: acquiring current position information of a compressor and a three-dimensional shape of a component to be installed in the compressor; in the case that a sound insulation cotton installation instruction is received, a material taking robot is controlled to perform a material taking operation, so that a sound insulation cotton roll is placed on a sound insulation cotton processing platform; the sound insulation cotton processing platform is controlled according to the three-dimensional shape to perform a material rolling operation on the sound insulation cotton roll, so that a sound insulation cotton to be installed is obtained; and a material placing robot is controlled according to the current position information to perform a material placing operation, so that the sound insulation cotton to be installed is installed on the component to be installed of the compressor, and a sound insulation cotton installation operation is completed. The application solves the technical problem that the installation of the sound insulation cotton of the compressor usually needs manual operation in the related art, the installation efficiency is low, the error rate is high, and the health of the operator is easily affected.

A method for acquiring an extended ultrasound image according to the present invention comprises the steps of: receiving an ultrasound scan area image from a three-dimensional image capturing device by means of a computer to generate three-dimensional shape data; generating an extended image plane for obtaining an extended ultrasound image with respect to the generated three-dimensional shape data by means of the computer; generating a line scan path for acquiring a plurality of ultrasound image frames including an overlapping area for the extended image plane by means of the computer; acquiring a plurality of ultrasound image frames by moving an ultrasound probe along the generated line scan path by means of the computer; selecting an ultrasound image frame corresponding to the extended image plane; and generating an extended ultrasound image by synthesizing an overlapping portion of the selected plurality of ultrasound image frames.