1228 results about "Human-body model" patented technology

To reduce medical mistakes, for instance, a surgical site is mistaken for another part. An operation support system includes a model image forming unit which applies a mark to a surgery site of a corresponding surgical position in accordance with inputted surgery information including an operative procedure, a surgery on right side or left side and the surgical position to form a human body model image and a display control unit which displays the human body model image formed by the model image forming unit on a display unit.

Symmetrical/asymmetrical bidirectional S-shaped I-V characteristics with trigger voltages ranging from 10 V to over 40 V and relatively high holding current are obtained for advanced sub-micron silicided CMOS (Complementary Metal Oxide Semiconductor)/BiCMOS (Bipolar CMOS) technologies by custom implementation of P₁-N₂-P₂-N₁//N₁-P₃-N₃-P₁ lateral structures with embedded ballast resistance 58, 58A, 56, 56A and periphery guard-ring isolation 88-86. The bidirectional protection devices render a high level of electrostatic discharge (ESD) immunity for advanced CMOS/BiCMOS processes with no latchup problems. Novel design-adapted multifinger 354/interdigitated 336 layout schemes of the ESD protection cells allow for scaling-up the ESD performance of the protection structure and custom integration, while the I-V characteristics 480 are adjustable to the operating conditions of the integrated circuit (IC). The ESD protection cells are tested using the TLP (Transmission Line Pulse) technique, and ESD standards including HBM (Human Body Model), MM (Machine Model), and IEC (International Electrotechnical Commission) IEC 1000-4-2 standard for ESD immunity. ESD protection performance is demonstrated also at high temperature (140° C.). The unique high ratio of dual-polarity ESD protection level per unit area, allows for integration of fast-response and compact protection cells optimized for the current tendency of the semiconductor industry toward low cost and high density-oriented IC design. Symmetric/asymmetric dual polarity ESD protection performance is demonstrated for over 15 kV HBM, 2 kV MM, and 16.5 kV IEC for sub-micron technology.

A method of fitting a virtual item using a human body model and a system for providing a fitting service of a virtual item are provided, the method including determining whether a user is located in an experience area, loading a three-dimensional (3D) standard avatar corresponding to setting information input by the user when the user is located in the trial area, obtaining a depth image of the user corresponding to a preset posture, transforming the 3D standard avatar into a user avatar reflecting body characteristics of the user, using a depth image of the user, fitting a virtual item selected by the user to the user avatar, and applying a motion of the user changing in real time to the user avatar to which the virtual item is fitted.

The invention discloses a network virtual fit system based on a 3D actual human body model and a clothes model. A consumer surfs the internet for browsing various brands of 3D virtual clothes, ornaments and the like provided by the network virtual fit system through client end software installed on a computer, so that matching of any clothes is carried out. 3D clothes are provided online, browsed and fitted by the network virtual fit system, and are established according clothes picture, sizes and other standard data provided by a clothes provider; the consumer can shoot a frontal image and a profile image by using a camera, a real person 3D human body model is automatically generated by using the software provided by the network virtual fit system, the network virtual fit system generates data of various figures of consumers according to heights input by the consumers and actual proportions so that fitting of the 3D virtual clothes is prepared; and the fitting of the 3D virtual clothes of the 3D human body model is carried out according to the established data of the figures of the customers and the actual sizes of the clothes under various sizes, thus the effect of various kinds of clothes with various sizes on a model can be seen, and the customers determine the sizes suitable for the customers.

Provided is an apparatus and method for immediately creating and controlling a virtual reality interactive human body model for a user-centric interface. The apparatus and method can transform a whole body three-dimensional (3D) default model into a model close to the body of a user by collecting data from the user's hands, generates a user coincident 3D model by selecting a skin texture map and applying it to the transformed model, and controlling the user coincident 3D model in a deformable polygon mesh structure to naturally visualize the motion of the user coincident 3D model. The apparatus and method can make users participate in a virtual reality system conveniently and work naturally in the same manner as reality, i.e., interaction. The apparatus and method provides ordinary users with an easy access to virtual reality systems and overcomes the shortcomings of existing virtual reality systems which simply provide visual effects.

The invention discloses a human body 3D reconstruction method and device for a complex dynamic scene under a multi-view camera. The method comprises the following steps: photographing a target human body object at multiple views to obtain 2D images at multiple views under the same moment; predicting all the parts of the human body in the video sequence through a model after deep network learning to obtain the human body skeleton information of the human body; matching the movement and rough contour of the character in the images through a virtual 3D human body model according to the skeleton information to obtain the human body contour information of the human body; and carrying out human body 3D modeling through a Virtual Hull method according to the calibrated internal and external parameter information of the camera at multiple views as well as the human body skeleton information and the human body contour information. Through the method, 3D reconstruction of a human body object ina video sequence can be realized through camera calibration and other processes, and therefore, accurate character object segmentation is realized, and the accuracy and reliability of reconstruction are improved.

The invention discloses an estimation method of a human posture based on a depth image. The method estimates the human posture according to the depth image of a human body and simulates the human body in the image through a virtual human body model. The depth image includes a plurality of frames. The method includes the steps of building the virtual human body model composed of a skeleton model and a skin model; initializing parameters of the virtual human body model; filtering a current frame of the depth image; performing corresponding point detection on the virtual human body model and the depth image; and building and optimizing an objective function for the current frame of the depth image according to results of the corresponding point detection, and updating a current posture of the virtual human body model through the value of a minimized objective function, wherein the objective function is used for describing the posture difference between the virtual human body model and the depth image. The virtual human body model built in the estimation method is high in degree of freedom and good in skin deformation effect, the convergence rate of posture estimation is high, errors are small, simultaneously, a depth camera is used for obtaining depth images, so that devices of a human motion posture estimation system are simple, and popularization and application are facilitated.

The present invention aims to estimate a more consistent posture in regard to a multi-joint object. A target range image is first input, a human body region is extracted from the input range image, a target joint position candidate is calculated from the input range image, and a joint position is finally determined based on the calculated joint position candidate and a likelihood of each joint to estimate the posture. At this time, joint position permissible range information concerning inter-joint distance and angle of a human body model previously set by learning is obtained from a human body model storing unit, consistency is evaluated for a relation between the joint position candidates of a certain joint and other joint based on the obtained information, and thus the posture corresponding to the best combination of the joint positions is determined.

The invention relates to a method for fabricating a green LED, which is mainly characterized in that through the introduction of an insert layer into an epitaxial growth InGaN/GaN quanta well, V type defects between the InGaN and the GaN is reduced and In precipitation is reduced; thus, the green LED with high brightness and strong antistatic ability can be obtained. With the introduction of the insert layer, the brightness of a 300micronx300micron green LED chip at 520nm under 20mA is improved from 100mcd to 250mcd and the antistatic ability of the chip is increased from HBM 500V (human-body model) to HBM 4000V.

A method of deforming a shape of a human body model includes the steps of reorganizing human body model data into a joint-skeleton structure-based Non-Uniform Rational B-spline (NURBS) surface model, generating statistical deformation information about control parameters of the NURBS surface model based on parameters of joints and key section curves for specific motions, and deforming the shape of the human body model based on the NURBS surface model and the statistical deformation information. The human body model data includes three-dimensional (3D) human body scan data and a 3D polygon mesh.

The invention discloses a three-dimensional human body model attitude and shape reconstruction method through a video sequence, and the method comprises the steps: 1), extracting two-dimensional jointpoints of a person in a video frame; 2), extracting facial feature points of the person in the video frame; 3), extracting a two-dimensional contour line of the person in the video frame; 4), estimating camera parameters, and generating a perspective matrix according to the camera parameters; 5), carrying out the optimization of the model posture and shape through an optimization method; 6), obtaining the edge points of the 3D human body model at the camera angle and the matching relationship between the edge point and the 2D contour line; 7), carrying out the re-optimization of the shape ofthe model through the optimization method so that the sum of the differences between the distances from the positions of the edge points of the three-dimensional model at the camera angle after projection to the positions of the two-dimensional contour points in the video frame is minimized. The method can avoid the posture turnover in the reconstruction process, and also can accurately reconstruct the posture of a head under the condition that the overall similarity of the model is guaranteed.

The invention discloses an RGBD camera-based three-dimensional human body rapid modeling system. The system is executed through the following steps of: establishing a scanning array by utilizing a plurality of RGB-D cameras; calibrating the scanning array by using an automatic calibration technology, so as to obtain a calibrated matrix and automatically guide the calibrated matrix into a scanning system; enabling the RGB-D cameras in the array to independently scan a target object after the scanning is started, so as to obtain point cloud data of corresponding poses; processing the acquired point cloud data by utilizing a point cloud optimization technology, so as to obtain high-quality point clouds which can be used for triangular meshing; realizing reconstruction from the point clouds to a triangular patch model by utilizing a rapid triangular meshing algorithm; and obtaining a colored three-dimensional human body model by utilizing a color mapping technology. According to the system disclosed by the invention, a technology which is used for constructing the scanning matrix on the basis of the plurality of RGB-D cameras, rapidly acquiring human body feature data and realizing the construction of the human body three-dimensional model with high precision and refined color texture is provided.

The invention provides an individualized realistic virtual character modeling method based on images. Four human body images on the facade, lateral surfaces and back quickly generate an individualized three-dimensional human body model with realistic appearance. The method comprises the following steps: using a human body model based on a swept surface as a human body template model; extracting human body characteristic information from the images, establishing a corresponding relation between the human body template model and the human body images, and deforming the human body template model to generate an individualized human body geometric model; and on the two-dimensional parameterized results of the human body model, generating vivid human body textures by the human body images, and seamlessly mapping the human body textures to the three-dimensional individualized human body model to obtain the individualized human body model with realistic visual effect. The human body images are from a camera, a video camera and the like. The method provides a new low-cost and efficient human body modeling path for the field of virtual reality and digital entertainment.

A clothing simulation apparatus precisely determines clothing pressure for bringing a clothing into tight contact with a human body. A fitting part 22 divides a paper pattern model into a plurality of elements, imparts dynamic characteristics shown by a fabric model to each element, deforms the paper pattern model by solving the motion equation of each element using a finite element method, and then fits the clothing virtually to a human body model. The fitting part 22 sets a temporary model to cover a predetermined section of the human body model, deforms the paper pattern model to bring the paper pattern model into contact with the temporary model, and thereafter deforms the paper pattern model to bring the paper pattern model into contact with the human body model.

An object is to provide an articulated object position and posture estimation device with reduced calculation cost of model fitting for estimating position and posture and with improved estimation speed. A posture model storage section 2 stores data concerning to a posture model with low-dimensional parameters under movement restraint. The low-dimensional parameters are obtained by performing a principal component analysis on time-series postures of an articulated object frame model corresponding to a predetermined limited movement of an articulated object such as human body. A human body position and posture estimation device 101 generates a image of each posture of the articulated object frame model within postures which can be taken by the posture model in a human body model image generating section 4, performs a matching with an estimation target articulated object image in a position and posture estimation section 10, and thus, estimates a posture.

The invention relates to a hand action identification method and apparatus, a computer device and a readable storage medium. The hand action identification method comprises the following steps of collecting an image of a to-be-identified object through an image collection apparatus, and inputting the image of the to-be-identified object to an initial human body model to obtain pose information ofthe to-be-identified object; selecting position information of wrist joints from the pose information, and according to the position information of the wrist joints, obtaining a hand region image; andinputting the hand region image to a preset hand action model to obtain a first hand action of the to-be-identified object. According to the method, an overall pose of an identified person is identified firstly and then a hand is located; and when multiple to-be-identified objects exist in an identification region and are mutually shielded, the hand positions can be judged according to the posesof the to-be-identified objects, so that the hand action identification accuracy is improved.

Disclosed herein are a method and apparatus for displaying medical images using a virtual patient model. The apparatus includes a processor, the processor includes an image acquisition unit, a captured body part determination unit, a determination unit, and a display (control) unit. The image acquisition unit acquires one or more medical images of a patient. The captured body part determination unit determines the captured body part of each of the acquired one or more medical images. The determination unit determines a human body model diagram corresponding to unique information of the patient among a plurality of predetermined human body model diagrams. The display unit places and displays the one or more medical images on the determined captured body parts of the determined human body model diagram.

The invention provides a surgical assistant locating system. The surgical assistant locating system is used for assisting a doctor in locating the position of a wound. The surgical assistant locatingsystem comprises a robot patient end, and the robot patient end comprises an instrument arm which is used for being detachably connected with a surgical instrument, and an endoscope arm which is usedfor being detachably connected with an endoscope. In the surgical assistant locating system, a scanning module is used for obtaining in-vivo and body-surface three-dimensional data of a patient, a modeling module is used for building a human body model according to the in-vivo and body-surface three-dimensional data obtained by the scanning module, and building position and pose descriptions of the human body model under the coordinate system of the robot patient end, and a locating module is used for locating the recommended position of the wound according to the human body, the moving spaceof the instrument arm in the human body model, the moving space of the endoscope arm in the human body model and the interference between the instrument arm and the endoscope arm in the human body model.

The invention discloses a simple and high-efficient three-dimensional human body reconstruction method based on a single Kinect. The three-dimensional human body reconstruction method comprises the following steps of 1) acquiring point cloud; 2) carrying out point cloud pretreatment; 3) carrying out local aligning; 4) carrying out global aligning; and 5) carrying out surface reconstruction. A user can easily realize three-dimensional human body modeling in a narrow space, such as a home room or an office room, and only a personal computer and a Kinect are needed. In order to make the human body modeling become rapid, accurate and convenient, the invention provides an effective whole body scanning data acquisition strategy. Through six angles, three frame scanning is performed for each angle so that the human body can be completely covered. Point cloud data processing captured by the Kinect includes two steps of the local aligning and the global aligning. The new three dimensional human body modeling method can be suitable for most of applications, such as digital measurement, a product design and on-line shopping.

The invention provides an acupuncture acupoint determination auxiliary teaching system. A full three-dimensional virtual environment is built through a virtual reality technology, and a user and a human body model perform interactive operation. The system comprises a head-mounted display device, a main engine system, a tracking system, a left-hand controller, a right-hand controller, a solver needle sensor, a human body acupoint model and an auxiliary visual system. Due to the system of the invention, the user can accurately determine the acupoint in need of acupuncture, the acupuncture treatment principle and the effects can also be watched directly, and the technical problems that current medical university students have limited actual operation chances, the solid acupuncture model is large in loss, the positioning is inaccurate, and the operation feeling is not strong can be solved.

The invention discloses a three-dimensional virtual fitting system and relates to the technical field of robot vision and digitized costume design. The three-dimensional virtual fitting system is characterized in that the object of costume three-dimensional virtual fitting is a three-dimensional human body model which is built through shooting and processing of a real human body. A customer is shot by a camera to obtain multiple groups of images; contour extraction and feature extraction are carried out on the images in a computer, based on axial deformation of viewpoints, with the human body model as reference, further factors including human body types and the like are considered, and the real-person human body model of the customer is finally obtained; the obtained model is input into the three-dimensional fitting system; through two-way selection, a style, cloth, design and color and the like of clothes are determined by the customer and a designer; the data are input into a 'custom-made system' to complete a costume design, an individual fashion sample is generated automatically and input back into the three-dimensional fitting system, and then a custom ready-to-wear is sewed in a virtual mode and worn on the real-person human body model to display an individual fitting effect intuitively; relative marking is carried out by an evaluation system, and scores can be a reference index for the customer and the designer; and the design level and design efficiency of the costume are greatly improved.