Patent application number | Description | Published |
20090003516 | X-Ct Scan System - An X-CT scan system includes a base, an object rotary support, an X-ray generation device and a data acquisition system, wherein one side of the detector is leveled to or beyond the prolong line of the connecting line between the X-ray source of the X-ray generation device and the center of the object rotary support, the length of the beyond portion is less than the radius of the imaging field. The advantage of the invention is in that the invention can reconstruct the entire image of the object by means of X-ray projection data which only covers half of the area of the object. Compared with the traditional CT scan system, half of the detector size can be saved at most. The X-CT scan system is simplified and the projection data amount for scan and computation amount for image reconstruction are also reduced with the reconstructed image quality guaranteed. | 01-01-2009 |
20100152286 | Method for Producing Fucoxanthin - The present invention provides a method for producing fucoxanthin extract, said method comprising: performing absorption of the fucoxanthin extract by using absorbent and then performing elution to remove heavy metals and arsenic salt contained in the fucoxanthin extract, wherein the absorbent is selected from a group having macroporous resin, polyamide, activated carbon, alumina and a combination thereof. The method for producing fucoxanthin extract according to the present invention, the content of heave metal in the fucoxanthin extract can be reduced, while the content of fucoxanthin in the fucoxanthin extract can increase. In addition, the present invention also provides a fucoxanthin extract obtained by the above method, as well as fucoxanthin products containing the fucoxanthin extract. | 06-17-2010 |
20100202303 | RANGING METHOD FOR MEASURING DISTANCE BETWEEN A CENTRAL NODE AND AN EQUIPMENT NODE IN A BEACON WIRELESS PERSONAL AREA NETWORK - A ranging method is described for measuring distance between a central node and an equipment node in a beacon wireless personal area network. At the beginning stage, the central node calculates the parameters needed in the ranging operation and sends these parameters to the equipment nodes by beacon frames. Equipment nodes, in turn, send ranging frames at time slots assigned thereto according to the information received in the beacon frames. The central node calculates beacon frame flight time by recording the sending time and the arrival time of the ranging frame, and then calculates the distance between the central node and the equipment node. For nodes failing in the ranging procedure, the ranging parameters are changed according to failing reasons and the above procedure is repeated until a ranging result is received without failure. | 08-12-2010 |
20110164788 | METHOD AND DEVICE FOR DETERMINING LEAN ANGLE OF BODY AND POSE ESTIMATION METHOD AND DEVICE - Provided are a method and device for determining a lean angle of a body and a pose estimation method and device. The method for determining a lean angle of a body of the present invention includes: a head-position obtaining step for obtaining a position of a head; a search region determination step for determining a plurality of search region spaced with an angle around the head; an energy function calculating step for calculating a value of an energy function for the search region; and a lean angle determining step for determining the lean angle of a search region with a largest or smallest value of the energy function as the lean angle of the body. The pose estimation method of the present invention includes a body lean-angle obtaining step, for obtaining a lean angle of a body; and a pose estimation step, for performing a pose estimation based on the lean angle of the body. | 07-07-2011 |
20110173716 | EPSP synthase with high glyphosate resistance and its encoded sequence - An EPSP synthase (5-enolpyruvylshikimate-3-phosphate synthase) with high glyphosate resistance and a nucleotide sequence encoding the synthase are disclosed. The gene encoding the EPSP synthase has low homology with the reported EPSP synthase. A transgenic plant obtained by the expression of the gene in plant has an increased resistance to glyphosate after experimental confirmation. | 07-14-2011 |
20120014579 | CT DEVICE AND METHOD BASED ON MOTION COMPENSATION - A CT device and method based on motion compensation are proposed. The present invention obtains motion parameters of a target object by using a stereo-vision-based motion measurement system, and then implements motion compensation through the technology based on reconstructed image matrix transformation, thereby obtaining a clear 2D/3D CT image while eliminating motion artifacts. The present invention can effectively eliminate motion artifacts caused by the scanned object's own motions in the CT scanning, and can be easily embedded into the existing CT scanning equipments. The present invention can improve quality of the CT images, and is especially important for CT imaging of some special groups of people that can not control their own motions, such as Parkinson's patients, infants, living mouse and so on. It can also improve ultra-high-resolution imaging of human body. | 01-19-2012 |
20120045117 | METHOD AND DEVICE FOR TRAINING, METHOD AND DEVICE FOR ESTIMATING POSTURE VISUAL ANGLE OF OBJECT IN IMAGE - Method and device for estimating the posture orientation of the object in image are described. An image feature of the image is obtained. For each orientation class, 3-D object posture information corresponding to the image feature is obtained based on a mapping model corresponding to the orientation class, for mapping the image feature to the 3-D object posture information. A joint probability of a joint feature including the image feature and the corresponding 3-D object posture information for each orientation class is calculated according to a joint probability distribution model based on single probability distribution models for the orientation classes. A conditional probability of the image feature in condition of the corresponding 3-D object posture information is calculated based on the joint probability for each orientation class. The orientation class corresponding to the maximum of the conditional probabilities is estimated as the posture orientation of the object in the image. | 02-23-2012 |
20120057761 | THREE DIMENSIONAL HUMAN POSE RECOGNITION METHOD AND APPARATUS - The present invention discloses a three dimensional human pose recognition method and apparatus, where the three dimensional human pose recognition method includes steps of: a three dimensional pose initial recognition step of performing three dimensional pose recognition on an input image containing a human image to obtain image-based three dimensional human pose information; a sensor information acquisition step of acquiring, by a motion sensor, motion information of human articulation points; and a three dimensional pose correction step of correcting, with the motion information acquired by the sensor information acquisition step, the image-based three dimensional human pose information recognized by the three dimensional pose initial recognition step. According to the technical solution of the invention, it is possible to improve accuracy of the three dimensional human pose recognition efficiently. Further, the present invention also discloses a three dimensional human pose recognition method and apparatus, in which three dimensional half-body pose recognition is proposed, thereby speed of three dimensional human pose recognition can be improved significantly while improving accuracy of three dimensional human pose recognition. | 03-08-2012 |
20120106832 | METHOD AND APPARATUS FOR CT IMAGE RECONSTRUCTION - A method and apparatus for CT image reconstruction may include selecting, by a unit, projection data of the same height on a curve having a curvature approximate to that of the scanning circular orbit, implementing, by a unit, a weighting processing on the selected projection data, filtering, by a unit, the weighting processed projection data along a horizontal direction, implementing, by a unit, three-dimensional back projection on the filtered projection data along the direction of ray. The method and apparatus can effectively eliminate cone beam artifact under a large cone angle. | 05-03-2012 |
20120140874 | Computer Tomography Imaging Device and Method - The present invention discloses a method for performing CT imaging on a region of interest of an object under examination, comprising: acquiring the CT projection data of the region of interest; acquiring the CT projection data of region B; selecting a group of PI line segments covering the region of interest, and calculating the reconstruction image value for each PI line segment in the group; and combining the reconstruction image values in all the PI line segments to obtain the image of the region of interest. The present invention further discloses a CT imaging device using this method and a data processor therein. Since the 2D/3D slice image of the region of interest can be exactly reconstructed and obtained as long as the X-ray beam covers the region of interest and the region B, it is possible to use a small-sized detector to perform CT imaging on the region of interest at any position of a large-sized object, which reduces to a great extent the radiation dose of the X-ray during the CT scanning. | 06-07-2012 |
20120195474 | METHOD AND APPARATUS FOR EVALUATING HUMAN POSE RECOGNITION TECHNOLOGY - A method and apparatus for evaluating a human pose recognition technology, where this method comprises: a loading step of loading a pose recognition module with the human pose recognition technology to be evaluated; a pose recognizing step of recognizing a human pose for each test image in a test image set using the pose recognition module to obtain pose data for each test image; a pose classifying step of classifying the pose data for each test image in terms of a predetermined pose category set to obtain a pose category value for each test image; a pose classification evaluating step of calculating a pose classification accuracy rate by comparing the pose category value for each test image with a pose category true value; and a pose recognition comprehensive evaluating step of calculating a comprehensive evaluation score for the human pose recognition technology according to the pose classification accuracy rate. | 08-02-2012 |
20120314078 | OBJECT MONITORING APPARATUS AND METHOD THEREOF, CAMERA APPARATUS AND MONITORING SYSTEM - A method of monitoring an object in images captured by N camera apparatuses including: for an i | 12-13-2012 |
20120314079 | OBJECT RECOGNIZING APPARATUS AND METHOD - An object recognizing apparatus and method are provided. The apparatus may include: a viewing direction estimating device configured for respectively estimating a first viewing direction of a first object captured by a first camera and a second viewing direction of a second object captured by a second camera; a feature extracting device configured for extracting one or more features respectively from an image containing the first object captured by the first camera and an image containing the second object captured by the second camera; and an object matching device configured for allocating a weight for each of the one or more features according to the first viewing direction and the second viewing direction, and calculating a similarity between the first object and the second object based on the one or more weighted features, to determine whether the first object and the second object are the same object. | 12-13-2012 |
20130094625 | X RAY SOURCE GRATING STEPPING IMAGING SYSTEM AND IMAGE METHOD - An X-ray imaging system comprising: an X-ray source, a source grating, a fixed grating module and an X-ray detector, which are successively positioned in the propagation direction of X-ray; an object to be detected is positioned between the source grating and the fixed gating module; said source grating can perform stepping movement in a direction perpendicular to the optical path and grating stripes; wherein the system further comprises a computer workstation for controlling said X-ray source, source grating and X-ray detector so as to perform the following processes: the source grating performs stepping movement in at least one period thereof; at each stepping step, the X-ray source emits X-ray to the object to be detected, and the detector receives the X-ray at the same time; wherein after at least one period of stepping and data acquisition, the light intensity of X-ray at each pixel point on the detector is represented as a light intensity curve; the light intensity curve at each pixel point on the detector is compared with a light intensity curve in the absence of the object to be detected, a pixel value of each pixel point is calculated from change in said light intensity curve; an image of the detected object is reconstructed according to the calculated pixel value. | 04-18-2013 |
20130189382 | Use of fucoxanthin in the preparation of product for improving memory and having neuroprotective effect associated with neurodegenerative disorder - Use of fucoxanthin in the preparation of a product having neuroprotective effect associated with neurodegenerative disorder and improving memory is disclosed in the disclosure. A product having neuroprotective effect associated with neurodegenerative disorder is also disclosed in the disclosure. Fucoxanthin can inhibit oxidative stress of cells and has the effect of preventing or treating Alzheimer's disease and improving memory. | 07-25-2013 |
20140093152 | METHODS AND DEVICES FOR LOCATING OBJECT IN CT IMAGING - The present disclosure provides methods and devices for locating a plurality of interested objects in CT imaging. Location of the interested objects in the three-dimensional space can be determined by using three projection images that are substantially perpendicular to each other. The method can rapidly locate interested objects in a CT image without pre-reconstruction of the CT image even if there are a plurality of interested objects in the field of view. The algorithm does not involve interactive steps. The method is rapid and effective, and thus applicable to industrial applications. | 04-03-2014 |
20140211917 | APPARATUS AND METHOD FOR RAY SCANNING IMAGING - The present invention discloses apparatus and method for ray scanning imaging. The apparatus comprises a plurality of ray generators and a ray detection device. The plurality of ray generators are arranged uniformly along a circular arc and emit ray beams in sequence or simultaneously to an object to be inspected within a single scanning period. The ray detection device may be either in a multi-segmental semi-closed configuration composed of a plurality of linear arrays of ray detectors or in a circular arc configuration where a plurality of ray detection units arranged uniformly along a circular arc. During the inspection, the apparatus is advantageous in obtaining the complete ray projection values without rotation thereof, so as to effectively shorten the inspection time. | 07-31-2014 |
20150030225 | X-RAY DUAL-ENERGY CT RECONSTRUCTION METHOD - The present disclosure relates to a self-prior information based X-ray dual-energy CT reconstruction method, which can utilize information inherent in data to provide a prior model, thereby obtaining a reconstructed image with a high quality. The X-ray dual-energy CT reconstruction method according to the present disclosure comprises: (a) rating an energy spectrum and establishing a dual-energy lookup table; (b) collecting high-energy data p | 01-29-2015 |