Patents by Inventor Liang Wang

Liang Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200107153
    Abstract: Embodiments of the present application relate to a method, apparatus, and system for matching users in connection with a Location-Based Service.
    Type: Application
    Filed: December 2, 2019
    Publication date: April 2, 2020
    Inventors: Jiajia Li, Liang Wang, Letao Wang
  • Publication number: 20200104612
    Abstract: Embodiments of the present disclosure disclose a method and an apparatus for detecting an obstacle, an electronic device, a vehicle and a storage medium. The method includes: obtaining a depth map around a vehicle; performing a terrain fitting based on the depth map to determine a terrain equation; determining a set of candidate obstacle points based on the terrain equation and the depth map; clustering candidate obstacle points in the set of candidate obstacle points to obtain at least one independent obstacle; and identifying and filtering a falsely detected obstacle from the at least one independent obstacle to obtain a depth-map-based obstacle detection result.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 2, 2020
    Inventors: Dongming CHEN, Xun SUN, Liang WANG
  • Publication number: 20200100756
    Abstract: A surgical position calibration method for getting the augmented and mixed reality of a surgical instrument includes the following steps: placing a calibration plate under a C-ARM to take C-ARM images, with the calibration plate provided with geometric patterns; inputting the C-ARM images into a computer to make 2D image maps; finding the center point of each geometric pattern on the calibration plate; defining a first reference calibration point; finding the distance between the center point of each other geometric pattern and the first reference calibration point to set up a translation matrix formula to form a 3D space image map; placing a surgical instrument at any position above the calibration plate; using the translation matrix formula generating a spatial variation image for the displacement of the surgical instrument; and forming a new spatial variation image.
    Type: Application
    Filed: October 1, 2018
    Publication date: April 2, 2020
    Inventor: Min-Liang Wang
  • Publication number: 20200103249
    Abstract: Embodiments of the present disclosure disclose a method for calibrating a relative pose, a device, and a medium. The method includes: obtaining first point cloud data of a scene collected by the laser radar in an automatic driving mobile carrier and first pose data collected by the navigation positioning system in the automatic driving mobile carrier; and determining the relative pose between the laser radar and the navigation positioning system based on the first point cloud data, the first pose data, second point cloud data pre-collected by a laser scanner in the scene and second pose data pre-collected by a positioning device in the scene.
    Type: Application
    Filed: September 25, 2019
    Publication date: April 2, 2020
    Inventors: Xun ZHOU, Yuanfan XIE, Shirui LI, Liang WANG
  • Patent number: 10603133
    Abstract: This present invention discloses an image guided augmented reality method, comprising the following steps of: obtaining a first conversion matrix of a camera and a marked point; obtaining a second conversion matrix of the eye and the camera; linking the first conversion matrix and the second conversion matrix to obtain a correct position corresponding matrix of the eye to the marked point; and linking the correct position corresponding matrix to a position feature of the marked point to obtain the correct position of the eye to the marked point. The present invention also discloses a surgical navigation method of wearable glasses, used for obtaining the correct position of the operator's eye to the marked point.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: March 31, 2020
    Assignee: Taiwan Main Orthopaedic Biotechnology Co., Ltd.
    Inventors: Min-Liang Wang, Pei-Yuan Lee, Ming-Hsien Hu
  • Patent number: 10607856
    Abstract: A manufacturing method of a redistribution layer is provided. The method includes the following steps. A patterned sacrificial layer is formed on a carrier. An actuate angle is formed between a side wall of the patterned sacrificial layer and the carrier. A first conductive layer is formed. The first conductive layer includes a plurality of first portions formed on the carrier and a plurality of second portions formed on the patterned sacrificial layer. The patterned sacrificial layer and the second portions of the first conductive layer are removed from the carrier. Another manufacturing method of a redistribution layer is also provided.
    Type: Grant
    Filed: June 18, 2017
    Date of Patent: March 31, 2020
    Assignee: Powertech Technology Inc.
    Inventors: Kun-Yung Huang, Chih-Fu Lung, Shih-Chi Li, Mei-Chen Lee, Chung-Hao Tsai, Chi-Liang Wang
  • Patent number: 10600761
    Abstract: A microelectronic assembly including an insulating layer having a plurality of nanoscale conductors disposed in a nanoscale pitch array therein and a pair of microelectronic elements is provided. The nanoscale conductors can form electrical interconnections between contacts of the microelectronic elements while the insulating layer can mechanically couple the microelectronic elements together.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: March 24, 2020
    Assignee: Invensas Corporation
    Inventors: Liang Wang, Bongsub Lee, Belgacem Haba, Sangil Lee
  • Publication number: 20200088858
    Abstract: Embodiments of the present disclosure provide a multi-sensor calibration method, a multi-sensor calibration device, a computer device, a medium and a vehicle. The method includes: acquiring data acquired by each of at least three sensors in a same time period in a traveling process of a vehicle; determining a trajectory of each of the at least three sensors according to the data acquired by each of at least three sensors; and performing a joint calibration on the at least three sensors by performing trajectory alignment on the trajectories of the at least three sensors.
    Type: Application
    Filed: September 18, 2019
    Publication date: March 19, 2020
    Inventors: Shirui LI, Yuanfan XIE, Xun ZHOU, Liang WANG
  • Publication number: 20200089971
    Abstract: Embodiments of the present disclosure provide a sensor calibration method, a sensor calibration device, a computer device, a storage medium, and a vehicle. The method includes: detecting surrounding objects in a travelling process of a vehicle; recognizing a static object from the surrounding objects; performing feature extraction on the static object by a camera and a lidar, respectively; and calibrating an extrinsic parameter of the camera and the lidar based on the extracted feature.
    Type: Application
    Filed: September 18, 2019
    Publication date: March 19, 2020
    Inventors: Shirui LI, Yuanfan XIE, Xun ZHOU, Liang WANG
  • Publication number: 20200091110
    Abstract: Systems and methods for providing 3D wafer assembly with known-good-dies are provided. An example method compiles an index of dies on a semiconductor wafer and removes the defective dies to provide a wafer with dies that are all operational. Defective dies on multiple wafers may be removed in parallel, and resulting wafers with all good dies stacked in 3D wafer assembly. In an implementation, the spaces left by removed defective dies may be filled at least in part with operational dies or with a fill material. Defective dies may be replaced either before or after wafer-to-wafer assembly to eliminate production of defective stacked devices, or the spaces may be left empty. A bottom device wafer may also have its defective dies removed or replaced, resulting in wafer-to-wafer assembly that provides 3D stacks with no defective dies.
    Type: Application
    Filed: November 18, 2019
    Publication date: March 19, 2020
    Applicant: Invensas Corporation
    Inventors: Hong Shen, Liang Wang, Guilian Gao
  • Publication number: 20200093008
    Abstract: A contact pad includes a solder-wettable porous network (310) which wicks the molten solder (130) and thus restricts the lateral spread of the solder, thus preventing solder bridging between adjacent contact pads.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Applicant: Invensas Corporation
    Inventors: Liang Wang, Rajesh Katkar, Hong Shen, Cyprian Emeka Uzoh
  • Publication number: 20200082207
    Abstract: Embodiments of the present disclosure disclose an object detection method, an object detection apparatus, a related device, a storage medium and a vehicle. The method includes the following. Scene point cloud data is inputted into a point cloud feature extraction model pretrained to obtain a point cloud descriptive feature of the scene. Scene image data is input into an image feature extraction model pretrained to obtain an image descriptive feature of the scene. The point cloud descriptive feature and the image descriptive feature of each target region in the scene are input into an object identifying model to obtain a detection result of an object included in each target region.
    Type: Application
    Filed: September 5, 2019
    Publication date: March 12, 2020
    Inventors: YUANFAN XIE, Zishu YANG, Liang WANG
  • Publication number: 20200082640
    Abstract: A simulation data augmentation method, a simulation data augmentation device and a simulation data augmentation terminal are provided according to embodiments of the present application. The method includes: acquiring a point cloud based on a plurality of frames, wherein the point cloud includes a plurality of obstacles labeled with real labeling data; dividing the point cloud into a plurality of preset regions, wherein each of the preset regions includes at least one obstacle; and adjusting the obstacle based on the real labeling data of the obstacle in the preset regions to obtain simulation data.
    Type: Application
    Filed: July 17, 2019
    Publication date: March 12, 2020
    Applicant: Baidu Online Network Technology (Beijing) Co., Ltd.
    Inventors: Jin Fang, Feilong Yan, Ruigang Yang, Liang Wang, Yu Ma
  • Publication number: 20200081113
    Abstract: Embodiments of the present disclosure provide a method, an apparatus, a device, and a medium for determining an angle of yaw, relating to a field of automatic driving. The method includes: obtaining, during a vehicle being driving straightly on a straight road, data of each obstacle in an environment located by the vehicle, the data of each obstacle being detected by a millimeter wave radar sensor located in the vehicle, at least one metal obstacle being provided on the straight road; recognizing the metal obstacle based on the data of each obstacle, and obtaining a metal obstacle line by fitting positions of the metal obstacle at different time points; and determining an angle between the metal obstacle line and a direction of a vehicle body as an angle of yaw between the millimeter wave radar sensor and the vehicle body.
    Type: Application
    Filed: August 26, 2019
    Publication date: March 12, 2020
    Inventors: Xun ZHOU, Yuanfan XIE, Shirui LI, Liang WANG
  • Publication number: 20200081119
    Abstract: Embodiments of the present disclosure disclose a method and an apparatus for determining a relative pose, a device, and a medium. The method comprises: obtaining millimeter-wave data for obstacles in a scene collected by a millimeter-wave radar sensor in a vehicle and first data for the obstacles in the scene collected by a first sensor in the vehicle, wherein, at least one millimeter-wave radar signal booster is disposed in the scene as a target obstacle and the obstacles comprise the target obstacle; determining first obstacle data for the target obstacle in a millimeter-wave radar coordinate system and second obstacle data for the target obstacle in a first sensor coordinate system according to the millimeter-wave data and the first data for the obstacles in the scene; and determining the relative pose between the millimeter-wave radar sensor and the first sensor according to the first obstacle data and the second obstacle data.
    Type: Application
    Filed: September 5, 2019
    Publication date: March 12, 2020
    Inventors: XUN ZHOU, Yuanfan XIE, Shirui LI, Liang WANG
  • Publication number: 20200082554
    Abstract: The embodiments of the present disclosure provide a method for processing 3D data, an apparatus for processing 3D data, a device and a storage medium. The method includes: acquiring three-dimensional point cloud data to be processed; mapping the three-dimensional point cloud data into a two-dimensional image space to obtain a first depth map; performing an expansion processing on the first depth map after changing an occlusion relation between target objects contained in the first depth map; and changing the occlusion relation between the target objects contained in the first depth map subject to the expansion processing to obtain a second depth map matched to the three-dimensional point cloud data.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 12, 2020
    Inventors: Yucheng WANG, Liang WANG
  • Publication number: 20200082619
    Abstract: An obstacle distribution simulation method, device and terminal based on multiple models. The method can include: acquiring a point cloud, the point cloud including a plurality of obstacles labeled with real labeling data; extracting the real labeling data of the obstacles, and training a plurality of neural network models based on the real labeling data of the obstacles; extracting unlabeled data in the point cloud, inputting the unlabeled data into the neural network models, and outputting a plurality of prediction results. The plurality of prediction results can include a plurality of simulated obstacles with attribute data; selecting at least one simulated obstacle based on the plurality of prediction results; and inputting the attribute data of the selected simulated obstacle into the neural network models to obtain position coordinates of the simulated obstacle, and further obtain a position distribution of the simulated obstacle.
    Type: Application
    Filed: July 15, 2019
    Publication date: March 12, 2020
    Inventors: Jin Fang, Feilong Yan, Feihu Zhang, Ruigang Yang, Liang Wang, Yu Ma
  • Publication number: 20200082571
    Abstract: The present disclosure provides a method for calibrating relative parameters of a collector, an apparatus for calibrating relative parameters of a collector, a device and a storage medium. The technical solution of the present disclosure may determine target position and attitude information of a target image collector in a calibration coordinate system when each target image is collected, determine the first position information of a spatial point in a three-dimensional scene point cloud in the calibration coordinate system and the second position information a projection point of the spatial point in each target image, and determine a relative position and attitude value between the target image collector and the reference collector based on the target position and attitude information corresponding to each target image, the first position information and the second position information.
    Type: Application
    Filed: September 5, 2019
    Publication date: March 12, 2020
    Inventors: Yuanfan XIE, Xun ZHOU, Shirui LI, Liang WANG
  • Publication number: 20200082584
    Abstract: A data augmentation method, device are provided according to embodiments of the present application. The method includes: acquiring a point cloud of a frame, the point cloud comprising a plurality of original obstacles; obtaining a plurality of position voids by removing the original obstacles from the point cloud, and filling the position voids to obtain a real background of the point cloud; arranging a plurality of new obstacles labeled by labeling data, in the real background of the point cloud; and adjusting the new obstacles based on the labeling data of the new obstacles to obtain layout data of the new obstacles. The amount of real data is increased, and a diversity of the real data is improved.
    Type: Application
    Filed: July 17, 2019
    Publication date: March 12, 2020
    Inventors: Jin FANG, Feilong YAN, Ruigang YANG, Liang WANG, Yu Ma
  • Publication number: 20200082038
    Abstract: A method and system for simulating a distribution of obstacles are provided. The method includes: acquiring a plurality of point clouds of a plurality of frames, wherein each point cloud includes a plurality of original obstacles; acquiring real labeling data of an acquisition vehicle, and obtaining data of a simulation position of the acquisition vehicle based on the real labeling data and a movement rule of the acquisition vehicle; determining the number of obstacles to be simulated based on the data of the simulation position of the acquisition vehicle; selecting the determined number of obstacles to be simulated, from a range with the simulation position of the acquisition vehicle as a center, wherein the range is less than or equal to a maximum scanning range of the vehicle; and acquiring real labeling data of the selected obstacles, and obtaining a position distribution of the selected obstacles.
    Type: Application
    Filed: July 17, 2019
    Publication date: March 12, 2020
    Applicant: Baidu Online Network Technology (Beijing) Co., Ltd.
    Inventors: Jin Fang, Feilong Yan, Ruigang Yang, Liang Wang, Yu Ma