Patents by Inventor Lidong Xu

Lidong Xu 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: 10158802
    Abstract: Trajectory planning is described for video stabilization. In one example, a sequence of video frames is received and low-pass filtered. If a subset of the low-pass filtered frames are determined to be zero-motion frames, then a smooth trajectory is estimated for the for the zero-motion frames. Jitter is removed from the zero-motion frames using the smooth trajectory and frame warping is applied to the zero-motion frames with jitter removed.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: December 18, 2018
    Assignee: INTEL CORPORATION
    Inventors: Xiaoxia Cai, Chen Wang, Lidong Xu, Yi-Jen Chiu
  • Patent number: 10152778
    Abstract: Systems, apparatus, articles, and methods are described below including operations for real-time face beautification features for video images.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: December 11, 2018
    Assignee: Intel Corporation
    Inventors: Ke Chen, Zhipin Deng, Xiaoxia Cai, Chen Wang, Yi-Jen Chiu, Ya-Ti Peng, Lidong Xu
  • Patent number: 10123011
    Abstract: Reconstructed picture quality for a video codec system may be improved by categorizing reconstructed pixels into different histogram bins with histogram segmentation and then applying different filters on different bins. Histogram segmentation may be performed by averagely dividing the histogram into M bins or adaptively dividing the histogram into N bins based on the histogram characteristics. Here M and N may be a predefined, fixed, non-negative integer value or an adaptively generated value at encoder side and may be sent to decoder through the coded bitstream.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: November 6, 2018
    Assignee: Intel Corporation
    Inventors: Lidong Xu, Yi-Jen Chiu, Wenhao Zhang, Hong Jiang
  • Publication number: 20180316937
    Abstract: Methods, systems, and computer program products for the generation of multiple layers of scaled encoded video data compatible with the HEVC standard. Residue from prediction processing may be transformed into coefficients in the frequency domain. The coefficients may then be sampled to create a layer of encoded data. The coefficients may be sampled in different ways to create multiple respective layers. The layers may then be multiplexed and sent to a decoder. There, one or more of the layers may be chosen. The choice of certain layer(s) may be dependent on the desired attributes of the resulting video. A certain level of video quality, frame rate, resolution, and/or bit depth may be desired, for example. The coefficients in the chosen layers may then be assembled to create a version of the residue to be used in video decoding.
    Type: Application
    Filed: April 24, 2018
    Publication date: November 1, 2018
    Applicant: Intel Corporation
    Inventors: Wenhao ZHANG, Yi-Jen CHIU, Lidong XU, Yu HAN, Hong JIANG
  • Patent number: 10075689
    Abstract: Systems, apparatus, articles, and methods are described including operations for region-of-interest based 3D video coding.
    Type: Grant
    Filed: July 4, 2012
    Date of Patent: September 11, 2018
    Assignee: Intel Corporation
    Inventors: Wenhao Zhang, Yi-Jen Chiu, Lidong Xu, Yu Han, Zhipin Deng, Xiaoxia Cai
  • Patent number: 10075709
    Abstract: Systems, apparatus and methods are described including determining a prediction residual for a channel of video data; and determining, using the first channel's prediction residual, a prediction residual for a second channel of the video data. Further, a prediction residual for a third channel of the video data may be determined using the second channel's prediction residual.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: September 11, 2018
    Assignee: Intel Corporation
    Inventors: Lidong Xu, Yi-Jen Chiu, Yu Han, Wenhao Zhang
  • Publication number: 20180242012
    Abstract: Method and apparatus for deriving a motion vector at a video decoder. A block-based motion vector may be produced at the video decoder by utilizing motion estimation among available pixels relative to blocks in one or more reference frames. The available pixels could be, for example, spatially neighboring blocks in the sequential scan coding order of a current frame, blocks in a previously decoded frame, or blocks in a downsampled frame in a lower pyramid when layered coding has been used.
    Type: Application
    Filed: April 23, 2018
    Publication date: August 23, 2018
    Applicant: Intel Corporation
    Inventors: Yi-Jen Chiu, Lidong Xu, Hong Jiang
  • Publication number: 20180234701
    Abstract: Systems, apparatus, articles, and methods are described including operations for size based transform unit context derivation.
    Type: Application
    Filed: April 11, 2018
    Publication date: August 16, 2018
    Applicant: Intel Corporation
    Inventors: Wenhao Zhang, Yi-Jen Chiu, Pieter Kapsenberg, Lidong Xu, Yu Han, Zhipin Apple Deng, Xiaoxia Cai
  • Patent number: 10045041
    Abstract: Techniques for inter-layer residual prediction are described. In one embodiment, for example, an apparatus may comprise an encoding component to determine whether a predicted motion for an enhancement layer block is consistent with a predicted motion for a collocated lower-layer block, determine whether to apply inter-layer residual prediction to the enhancement layer block based on whether the predicted motion for the enhancement layer block is consistent with the predicted motion for the collocated lower-layer block, and in response to a determination that inter-layer residual prediction is to be applied to the enhancement layer block, generate a predicted residual for the enhancement layer block based on a residual for the collocated lower-layer block and generate a second-order residual for the enhancement layer block by comparing a calculated residual to the predicted residual. Other embodiments are described and claimed.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: August 7, 2018
    Assignee: INTEL CORPORATION
    Inventors: Wenhao Zhang, Yi-Jen Chiu, Lidong Xu, Yu Han, Zhipin Deng, Xiaoxia Cai
  • Patent number: 10015485
    Abstract: Systems, apparatus and methods are described including determining a prediction residual for a channel of video data; and determining, using the first channel's prediction residual, a prediction residual for a second channel of the video data. Further, a prediction residual for a third channel of the video data may be determined using the second channel's prediction residual.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: July 3, 2018
    Assignee: Intel Corporation
    Inventors: Lidong Xu, Yi-Jen Chiu, Yu Han, Wenhao Zhang
  • Publication number: 20180174370
    Abstract: Systems, apparatus, articles, and methods are described below including operations for scalable real-time face beautification of video images.
    Type: Application
    Filed: September 11, 2015
    Publication date: June 21, 2018
    Inventors: Ke CHEN, Zhipin DENG, Xiaoxia CAI, Chen WANG, Ya-Ti PENG, Yi-Jen CHIU, Lidong XU
  • Patent number: 9955179
    Abstract: Method and apparatus for deriving a motion vector at a video decoder. A block-based motion vector may be produced at the video decoder by utilizing motion estimation among available pixels relative to blocks in one or more reference frames. The available pixels could be, for example, spatially neighboring blocks in the sequential scan coding order of a current frame, blocks in a previously decoded frame, or blocks in a downsampled frame in a lower pyramid when layered coding has been used.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: April 24, 2018
    Assignee: Intel Corporation
    Inventors: Yi-Jen Chiu, Lidong Xu, Hong Jiang
  • Patent number: 9955154
    Abstract: Methods, systems, and computer program products for the generation of multiple layers of scaled encoded video data compatible with the HEVC standard. Residue from prediction processing may be transformed into coefficients in the frequency domain. The coefficients may then be sampled to create a layer of encoded data. The coefficients may be sampled in different ways to create multiple respective layers. The layers may then be multiplexed and sent to a decoder. There, one or more of the layers may be chosen. The choice of certain layer(s) may be dependent on the desired attributes of the resulting video. A certain level of video quality, frame rate, resolution, and/or bit depth may be desired, for example. The coefficients in the chosen layers may then be assembled to create a version of the residue to be used in video decoding.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: April 24, 2018
    Assignee: Intel Corporation
    Inventors: Wenhao Zhang, Yi-Jen Chiu, Lidong Xu, Yu Han, Hong Jiang
  • Patent number: 9948953
    Abstract: Systems, apparatus, articles, and methods are described including operations for size based transform unit context derivation.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: April 17, 2018
    Assignee: Intel Corporation
    Inventors: Wenhao Zhang, Yi-Jen Chiu, Pieter Kapsenberg, Lidong Xu, Yu Han, Zhipin Apple Deng, Xiaoxia Cai
  • Publication number: 20180063534
    Abstract: Techniques related to video coding with context decoding and reconstruction bypass.
    Type: Application
    Filed: January 11, 2017
    Publication date: March 1, 2018
    Inventors: Iole MOCCAGATTA, Zhipin DENG, Hiu-Fai CHAN, Lidong XU
  • Patent number: 9860558
    Abstract: Systems, devices and methods are described including at an enhancement layer (EL) video encoder determining an intra mode for a current block of an EL frame based, at least in part, on one or more first intra mode candidates obtained from at least one of a lower level EL frame, or a base layer (BL) frame.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: January 2, 2018
    Assignee: Intel Corporation
    Inventors: Wenhao Zhang, Yi-Jen Chiu, Lidong Xu, Yu Han, Zhipin Deng, Xiaoxia Cai
  • Patent number: 9860514
    Abstract: Systems, apparatus, articles, and methods are described including operations for 3D video coding including depth based disparity vector calibration.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: January 2, 2018
    Assignee: Intel Corporation
    Inventors: Wenhao Zhang, Yi-Jen Chiu, Lidong Xu, Yu Han, Zhipin Deng
  • Patent number: 9860533
    Abstract: Systems, apparatus and methods are described including operations for video coding including cross-layer cross-channel sample prediction.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: January 2, 2018
    Assignee: Intel Corporation
    Inventors: Lidong Xu, Yu Han, Wenhao Zhang, Yi-Jen Chiu, Hong Jiang
  • Patent number: 9838710
    Abstract: Techniques related to providing motion estimation for arbitrary pixel block shapes are discussed. Such techniques may include generating a distortion mesh for a pixel block based on multiple calls to a motion estimation such that the distortion mesh includes distortion values associated with regions of the pixel block, a seed motion vector, and candidate motion vectors, and determining a best motion vector for the pixel block based on the distortion mesh.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: December 5, 2017
    Assignee: Intel Corporation
    Inventors: Sang-Hee Lee, James M. Holland, Lidong Xu, Hong Jiang
  • Publication number: 20170318277
    Abstract: Systems, apparatus, articles, and methods are described including operations for 3D video coding including depth based disparity vector calibration.
    Type: Application
    Filed: July 17, 2017
    Publication date: November 2, 2017
    Inventors: Wenhao Zhang, Yi-Jen Chiu, Lidong Xu, Yu Han, Zhipin Deng