CAS Shenzhen Institutes of Advanced Technology

Shenzhen, China

CAS Shenzhen Institutes of Advanced Technology

Shenzhen, China
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Patent
CAS Shenzhen Institutes of Advanced Technology | Date: 2015-12-15

Disclosed is see-through smart glasses (100) and see-through methods thereof. The see-through smart glasses (100) includes a model storing module (110), an image processing module (130) and an image displaying module (120). The model storing module (110) is used for storing a 3D model of a target; the image processing module (130) is used for identifying target extrinsic marker (210) of the target (200) based on a users viewing angle, find out a spatial correlation between the target extrinsic marker (210) and internal structure (220) based on the 3D model of the target (200), and generating an interior image of the target (200) corresponding to the viewing angle based on the spatial correlation; and the image displaying module (120) is used for displaying the interior image. With the present application, on the premise of not breaking a surface and an entire structure of a target, an internal structure (220) image corresponding to the users viewing angle can be generated, so that the user can observe the internal structure of the object correctly, intuitively and visually with ease.


Patent
CAS Shenzhen Institutes of Advanced Technology | Date: 2016-12-23

The present disclosure provides a navigation method based on a three-dimensional scene, comprising: calculating an interest value of a viewpoint of a camera based on heights, volumes, irregularities and uniqueness of buildings in a scene; generating trajectory parameters of the camera according to the interest value of the viewpoint, so as to navigate according to the trajectory parameters. The navigation method based on a three-dimensional scene of the present disclosure obtains a reasonable interest value of the viewpoint based on heights, volumes, irregularities and uniqueness of the buildings, thereby achieving a high-quality navigation.


Patent
CAS Shenzhen Institutes of Advanced Technology | Date: 2016-11-07

A suturing nail includes a first nail body a second nail body being intertwined mutually to form a helix portion; a first nail crown extending from an end of the first nail body; a second nail crown extending from an end of the second nail body and opposite to the first nail crown, the first and the second nail crown being located on the same side of the helix portion and perpendicular to the helix portion; a first nail leg extending from the other end of the first nail body; a second nail leg extending from the other end of the second nail body and being spaced from the first nail, the first and the second nail leg are located on the same side of the helix portion, the first nail leg and the second nail leg are parallel to the helix portion.


Patent
CAS Shenzhen Institutes of Advanced Technology | Date: 2016-11-03

A method for reconstructing a three-dimensional model of point clouds includes following steps: a, scanning to obtain point clouds of an object required for a three-dimensional modelreconstruction; b, analyzing quality of the obtained point clouds; c, computing a new scanning view based on the analyzed point clouds; d, scanning according to the new scanning view and updating the point clouds of step a based on point clouds obtained by the scanning according to the new scanning view in real time; and e, reconstructing a three-dimensional model according to the point clouds updated in real time. The invention further relates to a system for reconstructing a three-dimensional model of point clouds. The invention can realize full automatic reconstruction of a three-dimensional model and create a model of point clouds with high quality. In addition, the invention is easy to implement and can achieve high efficiency.


Patent
CAS Shenzhen Institutes of Advanced Technology | Date: 2015-10-15

Disclosed is an indoor positioning device which comprises a base, a light source mounted on the base, a rotating part, a rotating outer shell and a controller; the rotating outer shell is a hemispherical shell body or a shell body being tangent externally with a hemispherical surface; a luminous point is located at a spherical center of the rotating outer shell; the rotating outer shell is divided into a plurality of encoded rings, each encoded ring is divided into a plurality of encoding bits, a angle of each encoding bit in a latitudinal direction is 360/N degrees, different encoded rings has different arrangements of encoding bits; in each encoded ring, some encoding bits are in a transparent state, there is no arrangement of two continuous opaque encoding bits, some encoding bits arranged in a specified style constitute a start bit or an end bit; once a light barrier of the rotating part passes through an optical coupler, the light source generates a frequency hopping; a receiver senses an optical signal and performs positioning. According to the special rotating outer shell and the frequency hopping light source, and in combination with the receiver, the optical signal can be sensed and positioning can be implemented. The indoor positioning device has a simplified structure and the method for indoor positioning is novel, accurate, has a good stability and a low cost, and is applicable to indoor positioning with high precision.


Patent
CAS Shenzhen Institutes of Advanced Technology | Date: 2016-12-06

A method for reconstructing surface from a point cloud includes following steps: (a) extracting skeletal curves from an input point cloud; (b) editing the extracted skeletal curves, and assigning sweeping path; (c) obtaining sliced point clouds along the edited skeletal curves, and fitting a closed NURBS curve according to the sliced point clouds; (d) reconstructing the point cloud to get generalized cylinders along the assigned sweeping path, according to the closed NURBS curves; (e) merging the generalized cylinders into a single surface, and smoothing intersections of the generalized cylinders so as to reconstruct surface from the point cloud. The invention further relates to a system for reconstructing surface from a point cloud. The invention can reconstruct the surface with high accuracy by the minimum interactions, and can deal with point cloud data having missing region caused by occlusion. In addition, the invention can achieve high reconstruction quality and fine controllability.


Patent
CAS Shenzhen Institutes of Advanced Technology | Date: 2016-12-23

The present invention provides a titanium ligand-modified black phosphorus and the preparation method and use thereof. The titanium ligand-modified black phosphorus is a complex of black phosphorus and a titanium ligand having a structure represented by formula (I): wherein in the formula (I), R_(1 )comprises C_(1)-C_(6 )alkyl, or phenyl optionally further substituted with 0 to 5 groups each independently selected from halogen atom, C_(1)-C_(6 )alkyl, nitro, hydroxy, amino or C_(1)-C_(3 )alkoxy; the C_(1)-C_(6 )alkyl or C_(1)-C_(3 )alkoxy is optionally further substituted with 0 to 3 groups each independently selected from halogen atom, nitro, hydroxy, amino, methyl, ethyl or n-propyl. The titanium ligand-modified black phosphorus of the present invention is not likely oxidized without changing inherent properties of the black phosphorus, and the antioxidant capacity is greatly enhanced.


Patent
CAS Shenzhen Institutes of Advanced Technology | Date: 2017-01-23

The present disclosure provides a method for acquiring a retina structure from an optical coherence tomographic image and a system thereof. The method comprises: calculating a region of interest (ROI) image of a source image; performing a Gaussian filtering of the ROI image; calculating a first estimated boundary position of a first layer boundary and a second estimated boundary position of a second layer boundary using a multi-resolution method; refining the first layer boundary and the second layer boundary respectively using a simplified active contour model according to the first estimated boundary position and the second estimated boundary position, to obtain a first initial boundary position of the first layer boundary and a second initial boundary position of the second layer boundary; smoothing the first initial boundary position and the second initial boundary position using a filtering method; acquiring segmentation positions of rest layer boundaries in the ROI image according to a segmented position of the first layer boundary and a segmented position of the second layer boundary. The present disclosure can improve the calculation speed and reduce the calculation complexity while maintaining high location accuracy.


Patent
CAS Shenzhen Institutes of Advanced Technology | Date: 2016-12-28

The present disclosure discloses a method and a device for elastic object deformation modeling. The method comprises: acquiring a static point cloud of the elastic object and dynamic point cloud sequences; establishing a simulation tetrahedral mesh model; driving the simulation tetrahedral mesh model to track the dynamic point cloud sequences, to obtain track deformation sequences; iteratively estimating material property coefficients and corresponding reference shapes of the elastic object; performing the following operations in each iteration: obtaining a reference shape corresponding to a current material property coefficient; driving the simulation tetrahedral mesh model to simulate the deformation from the same initial deformation according to the coefficient and the reference shape to obtain a simulation deformation sequences; calculating a positional deviation between the simulation deformation sequences and the track deformation sequences; and updating the material property coefficients in a direction in which the positional deviation is decreased; establishing an elastic object deformation model according to a material property coefficient under a minimum positional deviation and corresponding reference shape. The technical solution can establish a vivid elastic object deformation model.


Patent
CAS Shenzhen Institutes of Advanced Technology | Date: 2016-12-23

The present disclosure provides a GPU-based parallel electrocardiogram signal analysis method, comprising: performing a filtering process of electrocardiogram signals through a long interval artifact removal and a short interval artifact removal; performing a QRS detection of the filtering-processed electrocardiogram signals through an R-wave position extraction, a QRS complex start and end positions extraction and a QRS complex width extraction; performing an abnormal waveform classification of the QRS-detected electrocardiogram signals through template creation; wherein at least one of the long interval artifact removal, the short interval artifact removal, the R-wave position extraction, the QRS complex width extraction and the creation template is performed by a multiple threads at a GPU device side in parallel, any thread being read through its unique index number to process corresponding data. By executing one or more steps of the electrocardiogram signal analysis at GPU in parallel, the present disclosure increases the analysis speed of the electrocardiogram signals.

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