Patents by Inventor Xiaohang Sun
Xiaohang Sun 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).
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Patent number: 12105755Abstract: Systems and techniques for retrieving video data associated with a selected attribute are described. The systems and techniques include receiving a multimodal input associated with the attribute for querying a catalog of video data to identify video data including the attribute. A first embedding is determined for the input using a first encoder to map the input to a representation space. A second embedding is determined for the video data to map the video data to the representation space. A similarity score is determined between the video data and the input based on a distance between the embeddings. The video data associated with the attribute may be selected based on the similarity score.Type: GrantFiled: June 28, 2022Date of Patent: October 1, 2024Assignee: Amazon Technologies, Inc.Inventors: Mohamed Kamal Omar, Xiaohang Sun, Han-Kai Hsu, Ashutosh Sanan, Wentao Zhu
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Patent number: 12056949Abstract: Techniques are disclosed for detecting an uncovered portion of a body of a person in a frame of video content. In an example, a first machine learning model of a computing system may output a first score for the frame based on a map that identifies a region of the frame associated with an uncovered body part type. Depending on a value of the first score, a second machine learning model that includes a neural network architecture may further analyze the frame to output a second score. The first score and second score may be merged to produce a third score for the frame. A plurality of scores may be determined, respectively, for frames of the video content, and a maximum score may be selected. The video content may be selected for presentation on a display for further evaluation based on the maximum score.Type: GrantFiled: March 29, 2021Date of Patent: August 6, 2024Assignee: Amazon Technologies, Inc.Inventors: Xiaohang Sun, Mohamed Kamal Omar, Alexander Ratnikov, Ahmed Aly Saad Ahmed, Tai-Ching Li, Travis Silvers, Hanxiao Deng, Muhammad Raffay Hamid, Ivan Ryndin
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Patent number: 11928880Abstract: Techniques are disclosed for detecting an uncovered portion of a body of a person in a frame of video content. In an example, a first machine learning model of a computing system may output a first score for the frame based on a map that identifies a region of the frame associated with an uncovered body part type. Depending on a value of the first score, a second machine learning model that includes a neural network architecture may further analyze the frame to output a second score. The first score and second score may be merged to produce a third score for the frame. A plurality of scores may be determined, respectively, for frames of the video content, and a maximum score may be selected. The video content may be selected for presentation on a display for further evaluation based on the maximum score.Type: GrantFiled: March 29, 2021Date of Patent: March 12, 2024Assignee: Amazon Technologies, Inc.Inventors: Xiaohang Sun, Mohamed Kamal Omar, Alexander Ratnikov, Ahmed Aly Saad Ahmed, Tai-Ching Li, Travis Silvers, Hanxiao Deng, Muhammad Raffay Hamid, Ivan Ryndin
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Patent number: 11727294Abstract: A quantum information processing system comprises a light source, a detector, at least one spatial light modulator and at least one optical lens. The light source is configured to provide a beam of entangled photons. The at least one optical lens is configured to project the resultant beam onto the spatial light modulator, either by direct imaging or by performing a full or partial optical Fourier transform. Said spatial light modulator includes a plurality of discrete pixels and is configured to select one or more of the plurality of discrete pixels to generate a resultant beam from said beam of entangled photons. The resultant beam from said spatial light modulator is projected onto the detector. For optical computation, such as search algorithms, the configuration and projections are repeated to find the optimal solution.Type: GrantFiled: July 28, 2017Date of Patent: August 15, 2023Assignee: Trustees of Princeton UniversityInventors: Jason W. Fleischer, Chien-Hung Lu, Xiaohang Sun, Matthew Reichert, Hugo Defienne
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Patent number: 11589116Abstract: Techniques are disclosed for detecting a type of prurient activity shown by a portion of video content. In an example, a machine learning model of a computer system may receive a second portion of video content, the machine learning model including a neural network that is trained to analyze a temporal dimension of the second portion. The machine learning model determines a score indicating a likelihood that the video content shows the type of prurient activity based in part on applying a three-dimensional filter to the second portion of the video content. The computer system then generates a video clip that includes at least the portion of the video content showing the type of prurient activity based on the score, and provides the video clip for display.Type: GrantFiled: May 3, 2021Date of Patent: February 21, 2023Assignee: Amazon Technologies, Inc.Inventors: Mohamed Kamal Omar, Xiaohang Sun, Ivan Ryndin, Tai-Ching Li, Alexander Ratnikov, Muhammad Raffay Hamid, Ahmed Aly Saad Ahmed, Travis Silvers, Hanxiao Deng
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Publication number: 20220387609Abstract: A bio-related substance bonded to a branched and degradable polyethylene glycol derivative that is degraded in the cells represented by the following formula (A): wherein each symbol is as defined in the present specification, is provided by the present invention.Type: ApplicationFiled: March 26, 2020Publication date: December 8, 2022Applicants: NOF CORPORATION, TOKYO INSTITUTE OF TECHNOLOGYInventors: Hiroki YOSHIOKA, Kazuki OSAKAMA, Mika HAMURA, Takanori INABA, Nobuhiro NISHIYAMA, Makoto MATSUI, Hiroyasu TAKEMOTO, Takahiro NOMOTO, Xiaohang SUN
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Publication number: 20220153992Abstract: An intracellularly degraded branched and degradable polyethylene glycol derivative represented by the following formula (1): wherein each symbol is as defined in the present specification, that is used for modifying bio-related substances is provided by the present invention.Type: ApplicationFiled: March 26, 2020Publication date: May 19, 2022Applicants: NOF CORPORATION, TOKYO INSTITUTE OF TECHNOLOGYInventors: Hiroki YOSHIOKA, Kazuki OSAKAMA, Mika HAMURA, Takanori INABA, Nobuhiro NISHIYAMA, Makoto MATSUI, Hiroyasu TAKEMOTO, Takahiro NOMOTO, Xiaohang SUN
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Publication number: 20210095086Abstract: Films comprising a layer including a cellulose ester and a layer including an acrylic coating are provided. Polarizing sheets comprising the films are also provided. In addition, methods of making the films and polarizing sheets are provided.Type: ApplicationFiled: February 22, 2019Publication date: April 1, 2021Inventors: Marian G. McCord, Lokendra Pal, Mohamed A. Bourham, Xiaohang Sun
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Publication number: 20200377732Abstract: Disclosed is a composition comprising (a) a lignocellulosic material and/or a cellulosic material; and (b) a cellulose derivative. A process for preparing the composition is also disclosed. The process can comprise providing a cellulose derivative in a solvent; and mixing a lignocellulosic material and/or a cellulosic material into the solvent. The lignocellulosic material and/or the cellulosic material can comprise 90% of particles ranging from 0.01 to 5 mm in size. The lignocellulosic material and/or the cellulosic material can be derived from a biomass residue.Type: ApplicationFiled: May 29, 2020Publication date: December 3, 2020Inventors: Lokendra Pal, Marian Gayle McCord, Lucian Lucia, Xiaohang Sun
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Publication number: 20180032896Abstract: A quantum information processing system comprises a light source, a detector, at least one spatial light modulator and at least one optical lens. The light source is configured to provide a beam of entangled photons. The at least one optical lens is configured to project the resultant beam onto the spatial light modulator, either by direct imaging or by performing a full or partial optical Fourier transform. Said spatial light modulator includes a plurality of discrete pixels and is configured to select one or more of the plurality of discrete pixels to generate a resultant beam from said beam of entangled photons. The resultant beam from said spatial light modulator is projected onto the detector. For optical computation, such as search algorithms, the configuration and projections are repeated to find the optimal solution.Type: ApplicationFiled: July 28, 2017Publication date: February 1, 2018Applicant: Trustees of Princeton UniversityInventors: Jason W. Fleischer, Chien-Hung Lu, Xiaohang Sun, Matthew Reichert, Hugo Defienne