Patents by Inventor Li Tian

Li Tian 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).

  • Patent number: 9123136
    Abstract: A method and system for real time processing of a sequence of video frames. A current frame in the sequence and at least one frame in the sequence occurring prior to the current frame is analyzed. Each frame includes a two-dimensional array of pixels. The sequence of video frames is received in synchronization with a recording of the video frames in real time. The analyzing includes performing a background subtraction on the at least one frame, which determines a background image and a static region mask associated with a static region consisting of a contiguous distribution of pixels in the current frame. The static region mask identifies each pixel in the static region upon the static region mask being superimposed on the current frame. A determination is made that a persistence requirement, a non-persistence duration requirement, and a persistence duration requirement have been satisfied.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: September 1, 2015
    Assignee: International Business Machines Corporation
    Inventors: Rogerio S. Feris, Arun Hampapur, Zouxuan Lu, Ying-Li Tian
  • Publication number: 20150241394
    Abstract: The present disclosure provides an electromagnetic ultrasonic transducer and an on-line inspection system including the transducer. The electromagnetic ultrasonic transducer includes a detection bottom surface and a stopper connected to a sidewall of the electromagnetic ultrasonic transducer; wherein the stopper extends towards the detection bottom surface; a bottom surface of the stopper is lower than the detection bottom surface; a distance ā€œdā€ between the bottom surface of the stopper and the detection bottom surface is in a range 0 mm<d?1 mm; the bottom surface of the stopper contacts a surface of an object to be detected in a working state of the electromagnetic ultrasonic transducer.
    Type: Application
    Filed: September 12, 2013
    Publication date: August 27, 2015
    Inventors: Li TIAN, Lu TIAN, Zhiheng TIAN
  • Patent number: 9030648
    Abstract: A dual wafer stage exchanging system for a lithographic device is disclosed, said system comprises two wafer stages running between an exposure workstation and a pre-processing workstation, and said two stages are set on a base and suspended above the upper surface of the base by air bearings. Each wafer stages is passed through by a Y-direction guide rail respectively, wherein one end of said guide rail is connected with a main driving unit and another end of said guide rail is detachably coupled with one of the two X-direction auxiliary driving units with single degree of freedom, and said two wafer stages are capable of moving in Y-direction along the guide rails and moving in X-direction under the drive of the auxiliary driving units with single degree of freedom. The position exchange of said two wafer stages can be enabled by the detachment and connection of the Y-direction guide rails and the auxiliary units with single degree of freedom.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: May 12, 2015
    Assignee: Tsinghua University
    Inventors: Yu Zhu, Ming Zhang, Jingsong Wang, Li Tian, Dengfeng Xu, Wensheng Yin, Guanghong Duan, Jinchun Hu
  • Publication number: 20150058386
    Abstract: A method for creating a virtual directory includes locating at least one file of a designated type by traversing a storage region, extracting attribute information of the at least one file, and creating a virtual directory according to the attribute information of the at least one file. The attribute information including at least two of a name, a play address, or episode information of the at least one file.
    Type: Application
    Filed: June 3, 2014
    Publication date: February 26, 2015
    Applicant: Xiaomi Inc.
    Inventors: Yi Niu, Chuangqi Li, Yaozhong Li, Li Tian, Hui Wang, Cheng Qian
  • Patent number: 8934670
    Abstract: A method and system for real time processing of a sequence of video frames. A current frame in the sequence and at least one frame in the sequence occurring prior to the current frame is analyzed. Each frame includes a two-dimensional array of pixels. The sequence of video frames is received in synchronization with a recording of the video frames in real time. The analyzing includes performing a background subtraction on the at least one frame, which determines a background image and a static region mask associated with a static region consisting of a contiguous distribution of pixels in the current frame. The static region mask identifies each pixel in the static region upon the static region mask being superimposed on the current frame. The background image includes the array of pixels and a background model of the at least one frame and does not include any moving object.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: January 13, 2015
    Assignee: International Business Machines Corporation
    Inventors: Rogerio Schmidt Feris, Arun Hampapur, Zuoxuan Lu, Ying-li Tian
  • Publication number: 20150010211
    Abstract: A method and system for real time processing of a sequence of video frames. A current frame in the sequence and at least one frame in the sequence occurring prior to the current frame is analyzed. The sequence of video frames is received in synchronization with a recording of the video frames in real time. The analyzing includes performing a background subtraction on the at least one frame, which determines a background image and a static region mask associated with a static region consisting of a contiguous distribution of pixels in the current frame, which includes executing a mixture of 3 to 5 Gaussians algorithm coupled together in a linear combination by Gaussian weight coefficients to generate the background model, a foreground image, and the static region. The static region mask identifies each pixel in the static region upon the static region mask being superimposed on the current frame.
    Type: Application
    Filed: September 23, 2014
    Publication date: January 8, 2015
    Inventors: Rogerio S. Feris, Arun Hampapur, Zouxuan Lu, Ying-li Tian
  • Publication number: 20150010210
    Abstract: A method and system for real time processing of a sequence of video frames. A current frame in the sequence and at least one frame in the sequence occurring prior to the current frame is analyzed. The sequence of video frames is received in synchronization with a recording of the video frames in real time. The analyzing includes performing a background subtraction on the at least one frame, which determines a background image and a static region mask associated with a static region consisting of a contiguous distribution of pixels in the current frame. The static region mask identifies each pixel in the static region upon the static region mask being superimposed on the current frame. A status of a static object is determined as either an abandoned status if the static object is an abandoned object or a removed status if the static object is a removed object.
    Type: Application
    Filed: September 23, 2014
    Publication date: January 8, 2015
    Inventors: Rogerio S. Feris, Arun Hampapur, Zouxuan Lu, Ying-li Tian
  • Publication number: 20150010209
    Abstract: A method and system for real time processing of a sequence of video frames. A current frame in the sequence and at least one frame in the sequence occurring prior to the current frame is analyzed. Each frame includes a two-dimensional array of pixels. The sequence of video frames is received in synchronization with a recording of the video frames in real time. The analyzing includes performing a background subtraction on the at least one frame, which determines a background image and a static region mask associated with a static region consisting of a contiguous distribution of pixels in the current frame. The static region mask identifies each pixel in the static region upon the static region mask being superimposed on the current frame. A determination is made that a persistence requirement, a non-persistence duration requirement, and a persistence duration requirement have been satisfied.
    Type: Application
    Filed: September 23, 2014
    Publication date: January 8, 2015
    Inventors: Rogerio S. Feris, Arun Hampapur, Zouxuan Lu, Ying-li Tian
  • Publication number: 20140339614
    Abstract: The present invention provides an image sensor and a method of fabricating the same. The image sensor comprises a semiconductor substrate, a photosensitive component, and a pixel-readout circuit, characterized in that, the semiconductor substrate comprises a supporting substrate, a first insulating buried layer, a first semiconductor layer, a second insulating buried layer, and a second semiconductor layer covered on the semiconductor substrate in sequence; the first semiconductor layer and the second semiconductor layer have different thicknesses, such that the photosensitive component is in the thicker semiconductor layer, and the pixel-readout circuit is in the thinner semiconductor layer. To realize the image sensor mentioned above, two different methods are provided. Ion implantation and bonding method are used respectively to provide the first and second insulating buried layers, and the first and second semiconductor layer substrates, and then the image sensor is fabricated.
    Type: Application
    Filed: December 24, 2012
    Publication date: November 20, 2014
    Inventors: Na Fang, Hui Wang, Jie Chen, Li Tian, Tao Ren
  • Patent number: 8860927
    Abstract: A dual-stage exchange system for a lithographic apparatus comprises a silicon chip stage (13) operating in an exposure workstation (3) and a silicon chip (14) stage operating in a pre-processing workstation (4). The two silicon chip stages (13, 14) are provided on the same base stage (1), and suspended on an upper surface (2) of the base stage by air bearings. The two silicon chip stages (13, 14) can move along guide rails (15, 16) in the Y direction. One end of each guide rail (15, 16) is connected to a main driving unit (11, 12), and the other end of each guide rail (15, 16) is butt-jointed with an X-direction single-freedom auxiliary driving unit (7, 8). The silicon chip stages (13, 14) are driven by the single-freedom auxiliary driving units (7, 8) cooperated with the main driving units (11, 12) to move along the X direction.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: October 14, 2014
    Assignee: Tsinghua University
    Inventors: Yu Zhu, Ming Zhang, Jingsong Wang, Li Tian, Dengfeng Xu, Wensheng Yin, Guanghong Duan, Jinchun Hu
  • Patent number: 8836918
    Abstract: A dual-stage exchange system for a lithographic apparatus comprises a silicon chip stage (10) operating in an exposure workstation (6) and a silicon chip stage (12) operating in a pre-processing workstation (7). Each silicon chip stage (10, 12) is supported by a six-freedom micro-motion stage, respectively. The silicon chip stage (10, 12) and the six-freedom micro-motion stage form a silicon chip stage group. The two silicon chip stage groups are provided on the same rectangular base stage (1) and suspended on an upper surface (2) of the base sage by air bearings. A double-freedom driving unit (21a, 21b, 22a, 22b) is provided on each edge of the base stage (1), respectively. The six-freedom micro-motion stage of the silicon chip stage group has an upper layer driver and a lower layer driver, capable of achieving six-freedom control.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: September 16, 2014
    Assignee: Tsinghua University
    Inventors: Yu Zhu, Ming Zhang, Jingsong Wang, Li Tian, Dengfeng Xu, Wensheng Yin, Guanghong Duan, Jinchun Hu
  • Patent number: 8837776
    Abstract: A person detection system includes a face detector configured to detect a face in an input video sequence, the face detector outputting a face keyframe to be stored if a face is detected; and a person detector configured to detect a person in the input video sequence if the face detector fails to detect a face, the person detector outputting a person keyframe to be stored, if a person is detected in the input video sequence.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: September 16, 2014
    Assignee: International Business Machines Corporation
    Inventors: Rogerio Feris, Arun Hampapur, Ying-Li Tian
  • Patent number: 8752197
    Abstract: The system and method obscures descriptive image information about one or more images. The system comprises a selector for selecting the descriptive image information from one or more of the images, a transformer that transforms the descriptive information into a transformed state, and an authorizer that provides authorization criteria with the image. In a preferred embodiment, the transformed state is the respective image encoded with the descriptive information. The descriptive information can be obscured so that the descriptive information in the transformed state can be decoded only if one or more authorization inputs satisfy the authorization criteria.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: June 10, 2014
    Assignee: International Business Machines Corporation
    Inventors: Rudolf M. Bolle, Lisa M. Brown, Jonathan H. Connell, Arun Hampapur, Sharatchandra Pankanti, Andrew W. Senior, Ying-Li Tian
  • Publication number: 20140157211
    Abstract: A task executing method adapted for a screen saver includes steps of opening a screen saver setting window; displaying a task setting region in the screen saver setting window, wherein the task setting region includes N first tasks and N is a positive integer; if P of the N first tasks are selected, automatically executing the P first tasks while a screen saver image starts, wherein P is a positive integer smaller than or equal to N.
    Type: Application
    Filed: March 13, 2013
    Publication date: June 5, 2014
    Applicant: Wistron Corporation
    Inventor: Fu-Li Tian
  • Patent number: 8655018
    Abstract: A method, system and computer program product for detecting presence of an object in an image are disclosed. According to an embodiment, a method for detecting a presence of an object in an image comprises: receiving multiple training image samples; determining a set of adaptive features for each training image sample, the set of adaptive features matching the local structure of each training image sample; integrating the sets of adaptive features of the multiple training image samples to generate an adaptive feature pool; determining a general feature based on the adaptive feature pool; and examining the image using a classifier determined based on the general feature to detect the presence of the object.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: February 18, 2014
    Assignee: International Business Machines Corporation
    Inventors: Rogerio S. Feris, Arun Hampapur, Ying-Li Tian
  • Patent number: 8619140
    Abstract: A solution for monitoring an area while accounting for camera motion and/or monitoring tasks is provided. For example, a physical area corresponding to a new field of view can be estimated for a camera for which motion is detected. The physical area can be estimated using a set of reference images previously captured by the camera, each of which comprises a unique field of view previously captured by the camera. Based on the physical area, a status for a monitoring task of the camera (e.g., an alert) can be updated and/or a location of an area for the monitoring task within an image captured by the camera can be updated. Further, based on the update(s), a field of view for a second camera can be automatically adjusted and/or a status for the monitoring task on the second camera can be automatically updated.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: December 31, 2013
    Assignee: International Business Machines Corporation
    Inventors: Lisa M. Brown, Jonathan H. Connell, II, Arun Hampapur, Andrew W. Senior, Chiao-Fe Shu, Ying-Li Tian
  • Patent number: 8614744
    Abstract: A solution for monitoring an area includes using a region schema for the area. The region schema can include a set of prototypical tracks, each of which includes a start location, an end location, and a trajectory. The trajectory comprises an expected path an object will travel between the start location and the end location and can include variation information that defines an amount that an object can vary from the trajectory. The region schema can be generated by obtaining training object tracking data for the area for an initialization time period and evaluating the object tracking data to identify the set of prototypical tracks. While monitoring the area, monitored object tracking data is obtained for a monitored object in the area, and abnormal behavior of the monitored object is identified when the monitored object tracking data for the monitored object does not follow at least one of the set of prototypical tracks in the region schema.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: December 24, 2013
    Assignee: International Business Machines Corporation
    Inventors: Lisa M. Brown, Arun Hampapur, Andrew W. Senior, Chiao-Fe Shu, Ying-li Tian
  • Patent number: 8599361
    Abstract: A nanometer precision six-DOF magnetic suspension micro-stage and the application thereof are provided which are mainly used in semiconductor photolithography devices. The micro-stage includes a cross support and four two-DOF actuators. Each 2-DOF actuator comprises a vertically polarized permanent magnet, a horizontal force coil and a vertical force coil; the permanent magnet being mounted on an end of the cross support, the horizontal force coil and the vertical force coil being arranged on a side of and below the permanent magnet respectively and being spaced apart from the permanent magnet; the cross support and four vertically polarized permanent magnets constitute a mover of the micro-stage; the horizontal force coil and the vertical force coil being fixed by a coil framework respectively and constituting a stator of the micro-stage; and the stator being mounted on a base of the micro-stage.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: December 3, 2013
    Assignee: Tsinghua University
    Inventors: Yu Zhu, Ming Zhang, Guang Li, Jinsong Wang, Jinchun Hu, Wensheng Yin, Kaiming Yang, Li Zhang, Jing Ma, Yan Xu, Yujie Li, Li Tian, Guanghong Duan
  • Patent number: 8456528
    Abstract: A system, method and program product for providing a video surveillance system that enhances object detection by utilizing feedback from a tracking system to an object detection system. A system is provided that includes: a moving object detection system for detecting moving objects in a video input; an object tracking system for tracking a detected moving object in successive time instants; and a tracker feedback system for feeding tracking information from the object tracking system to the moving object detection system to enhance object detection.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: June 4, 2013
    Assignee: International Business Machines Corporation
    Inventors: Lisa M. Brown, Jonathan H. Connell, II, Arun Hampapur, Sharathchandra U. Pankanti, Andrew W. Senior, Ying-li Tian
  • Publication number: 20130058940
    Abstract: This invention provides isolated nucleic acid and amino acid sequences encoding VG5Q, a novel angiogenic growth factor protein with pro-angiogenic activity, a forkhead-associated domain, a G-patch domain; characteristic subcellular localization in an in vitro Matrigel model of angiogenesis: towards the cell periphery in early stages of tubulogenesis, between cells in newly formed endothelial tubes, and no nuclear staining after 24 hours; is expressed in endothelial cells; is secreted during angiogenesis; and interacts with TWEAK. The invention also provides for expression vectors containing nucleic acid sequences encoding VG5Q protein, and host cells containing one or more expression vectors for the recombinant expression of VG5Q. The invention also provides for methods of using VG5Q for the diagnosis and treatment of angiogenesis-mediated diseases or disorders.
    Type: Application
    Filed: May 21, 2012
    Publication date: March 7, 2013
    Applicant: The Cleveland Clinic Foundation
    Inventors: Qing K. Wang, Xiao-Li Tian, Rajkumar Kadaba