Patents by Inventor Lianhuan Xiong
Lianhuan Xiong 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: 9743107Abstract: A method, an apparatus and a system for a rapid motion search applied in template matching are disclosed. The method includes: selecting motion vectors of blocks related to a current block as candidate motion vectors of the current block; after the uniqueness of a series of the candidate motion vectors of the current block is maintained, calculating the cost function of the candidate motion vectors in a corresponding template area of a reference frame, and obtaining the motion vector of the best matching template from the candidate motion vectors of the current block. In the embodiments of the present invention, there is no need to determine a large search range and no need to determine the corresponding search path template, and it is only necessary to perform a search in a smaller range.Type: GrantFiled: June 17, 2016Date of Patent: August 22, 2017Assignee: HUAWEI TECHNOLOGIES CO., LTDInventors: Sixin Lin, Lianhuan Xiong, Yingjia Liu, Steffen Kamp, Mathias Wien
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Patent number: 9723332Abstract: A method, a system, and an apparatus for evaluating video quality are disclosed to improve accuracy of the evaluation. The method includes: obtaining information about a transmitted video; resolving the information about the transmitted video to obtain video frame parameters, where the video frame parameters include a compression distortion parameter and/or a video quality distortion parameter with packet loss; and calculating a video frame quality parameter according to the video frame parameters. An apparatus and a system for evaluating video quality are provided. The embodiments of the present invention improve accuracy of video quality evaluation without reference.Type: GrantFiled: November 26, 2014Date of Patent: August 1, 2017Assignee: SnapTrack, Inc.Inventors: Qingpeng Xie, Fuzheng Yang, Shuai Wan, Sixin Lin, Lianhuan Xiong
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Patent number: 9723313Abstract: The embodiments of the present invention provide a method and a device for encoding and decoding videos, and relate to the communication field, and an efficient transformation matrix corresponding to features of each residual block is selected for transformation, which therefore improves encoding efficiency. The solution provided in an embodiment of the present invention is: generating a prediction residual according to input video data; selecting a set of best transformation matrixes among multiple candidate transformation matrixes according to an intra-frame prediction mode and rate-distortion criteria to perform transform-coding on the prediction residual and obtain a transformation result; and generating an encoded stream according to the transformation result and selected transformation matrix index information.Type: GrantFiled: April 20, 2012Date of Patent: August 1, 2017Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Mingyuan Yang, Dong Wang, Lianhuan Xiong, Xin Zhao, Li Zhang, Siwei Ma, Wen Gao
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Publication number: 20160295233Abstract: A method, an apparatus and a system for a rapid motion search applied in template matching are disclosed. The method includes: selecting motion vectors of blocks related to a current block as candidate motion vectors of the current block; after the uniqueness of a series of the candidate motion vectors of the current block is maintained, calculating the cost function of the candidate motion vectors in a corresponding template area of a reference frame, and obtaining the motion vector of the best matching template from the candidate motion vectors of the current block. In the embodiments of the present invention, there is no need to determine a large search range and no need to determine the corresponding search path template, and it is only necessary to perform a search in a smaller range.Type: ApplicationFiled: June 17, 2016Publication date: October 6, 2016Applicant: HUAWEI TECHNOLOGIES CO.,LTD.Inventors: Sixin Lin, Lianhuan Xiong, Yingjia Liu, Steffen Kamp, Mathias Wien
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Patent number: 9392297Abstract: A method, an apparatus and a system for a rapid motion search applied in template matching are disclosed. The method includes: selecting motion vectors of blocks related to a current block as candidate motion vectors of the current block; after the uniqueness of a series of the candidate motion vectors of the current block is maintained, calculating the cost function of the candidate motion vectors in a corresponding template area of a reference frame, and obtaining the motion vector of the best matching template from the candidate motion vectors of the current block. In the embodiments of the present invention, there is no need to determine a large search range and no need to determine the corresponding search path template, and it is only necessary to perform a search in a smaller range.Type: GrantFiled: March 2, 2015Date of Patent: July 12, 2016Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Sixin Lin, Lianhuan Xiong, Yingjia Liu, Steffen Kamp, Mathias Wien
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Publication number: 20150181219Abstract: A method, an apparatus and a system for a rapid motion search applied in template matching are disclosed. The method includes: selecting motion vectors of blocks related to a current block as candidate motion vectors of the current block; after the uniqueness of a series of the candidate motion vectors of the current block is maintained, calculating the cost function of the candidate motion vectors in a corresponding template area of a reference frame, and obtaining the motion vector of the best matching template from the candidate motion vectors of the current block. In the embodiments of the present invention, there is no need to determine a large search range and no need to determine the corresponding search path template, and it is only necessary to perform a search in a smaller range.Type: ApplicationFiled: March 2, 2015Publication date: June 25, 2015Applicant: HUAWEI TECHNOLOGIES CO.,LTD.Inventors: Sixin Lin, Lianhuan Xiong, Yingjia Liu, Steffen Kamp, Mathias Wien
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Patent number: 9014270Abstract: A method, an apparatus and a system for a rapid motion search applied in template matching are disclosed. The method includes: selecting motion vectors of blocks related to a current block as candidate motion vectors of the current block; after the uniqueness of a series of the candidate motion vectors of the current block is maintained, calculating the cost function of the candidate motion vectors in a corresponding template area of a reference frame, and obtaining the motion vector of the best matching template from the candidate motion vectors of the current block. In the embodiments of the present invention, there is no need to determine a large search range and no need to determine the corresponding search path template, and it is only necessary to perform a search in a smaller range.Type: GrantFiled: March 28, 2011Date of Patent: April 21, 2015Assignee: Huawei Technologies Co., Ltd.Inventors: Sixin Lin, Lianhuan Xiong, Yingjia Liu, Steffen Kamp, Mathias Wien
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Publication number: 20150085942Abstract: A method, a system, and an apparatus for evaluating video quality are disclosed to improve accuracy of the evaluation. The method includes: obtaining information about a transmitted video; resolving the information about the transmitted video to obtain video frame parameters, where the video frame parameters include a compression distortion parameter and/or a video quality distortion parameter with packet loss; and calculating a video frame quality parameter according to the video frame parameters. An apparatus and a system for evaluating video quality are provided. The embodiments of the present invention improve accuracy of video quality evaluation without reference.Type: ApplicationFiled: November 26, 2014Publication date: March 26, 2015Inventors: Qingpeng XIE, Fuzheng YANG, Shuai WAN, Sixin LIN, Lianhuan XIONG
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Patent number: 8917777Abstract: A method, a system, and an apparatus for evaluating video quality are disclosed to improve accuracy of the evaluation. The method includes: obtaining information about a transmitted video; resolving the information about the transmitted video to obtain video frame parameters, where the video frame parameters include a compression distortion parameter and/or a video quality distortion parameter with packet loss; and calculating a video frame quality parameter according to the video frame parameters. An apparatus and a system for evaluating video quality are provided. The embodiments of the present invention improve accuracy of video quality evaluation without reference.Type: GrantFiled: December 22, 2010Date of Patent: December 23, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Qingpeng Xie, Fuzheng Yang, Shuai Wan, Sixin Lin, Lianhuan Xiong
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Patent number: 8718130Abstract: The invention relates to video image compression technologies, and discloses a method and system for upsampling a spatial scalable coded video image so that during upsampling computation complexity may be reduced while coding performance is substantially unchanged. In the invention, the principle that human eyes are far less sensitive to a chrominance components than to a luminance components is utilized, and a simpler filter is adopted for the chrominance components than that for the luminance components during upsampling in I_BLINTRA_Base inter-layer prediction or residual samples image inter-layer prediction, thereby reducing effectively calculation complexity while coding performance is substantially unchanged.Type: GrantFiled: April 11, 2008Date of Patent: May 6, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Lianhuan Xiong, Yihua Tan, Zhang Wang, Ajun Liu
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Publication number: 20140105298Abstract: Inter-frame prediction coding method, device and system are provided. The inter-frame prediction coding method includes: calculating distortions between a template area of current encoding block and each of M matching templates in L reference frames, to determine M offset vectors; acquiring M hypothesis prediction values of the encoding block to which the M matching templates correspond according to the determined M offset vectors, and calculating the template matching prediction value of the current encoding block according to the M hypothesis prediction values; comparing the template matching prediction value and original value of the current encoding block to acquire the residual of the current encoding block, and encoding the residual. The technical solution improves prediction performance of the video coding system and increases coding efficiency.Type: ApplicationFiled: December 26, 2013Publication date: April 17, 2014Applicant: Huawei Technologies Co., Ltd.Inventors: Steffen Kamp, Mathias Wien, Lianhuan Xiong, Yingjia Liu
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Patent number: 8693543Abstract: Inter-frame prediction coding method, device and system are provided. The inter-frame prediction coding method includes: calculating distortions between a template area of current encoding block and each of M matching templates in L reference frames, to determine M offset vectors; acquiring M hypothesis prediction values of the encoding block to which the M matching templates correspond according to the determined M offset vectors, and calculating the template matching prediction value of the current encoding block according to the M hypothesis prediction values; comparing the template matching prediction value and original value of the current encoding block to acquire the residual of the current encoding block, and encoding the residual. The technical solution improves prediction performance of the video coding system and increases coding efficiency.Type: GrantFiled: July 6, 2010Date of Patent: April 8, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Steffen Kamp, Mathias Wein, Lianhuan Xiong, Yingjia Liu
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Patent number: 8345776Abstract: A system and method for video coding include an encoder and decoder. The encoder/decoder respectively include a base layer encoding/decoding apparatus, at least one enhancement layer encoding/decoding apparatus, and an encoder/decoder drift control apparatus. The encoder drift control apparatus is configured to determine the amount of local error drift for the encoder according to local information of the base layer encoding apparatus and the enhancement layer encoding apparatus and control the value of an encoder leaky factor according to the amount of error drift. The decoder drift control apparatus is configured to determine the amount of local error drift for the decoder according to local information of the base layer decoding apparatus and the enhancement layer decoding apparatus and control a decoder leaky factor according to the amount of error drift.Type: GrantFiled: September 24, 2008Date of Patent: January 1, 2013Assignee: Huawei Technologies Co., Ltd.Inventors: Lianhuan Xiong, Steffen Kamp, Mathias Wien
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Publication number: 20120243608Abstract: The present invention relates to a video coding and decoding method, and coding and decoding apparatus. The coding method includes: generating a second order prediction flag for a coding block; when the coding block needs second order prediction, generating a second order prediction flag for at least one sub-block of the coding block, where the second order prediction flag of the sub-block is used to indicate whether second order prediction is performed on the sub-block; performing prediction according to the second order prediction flag of the coding block and the second order prediction flag of the at least one sub-block of the coding block to obtain a prediction image; and obtaining a prediction residual according to the prediction image, and coding the prediction residual.Type: ApplicationFiled: June 8, 2012Publication date: September 27, 2012Applicant: Huawei Technologies Co., Ltd.Inventors: Lu Yu, Binbin Yu, Shangwen Li, Dong Wang, Mingyuan Yang, Lianhuan Xiong
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Publication number: 20120201303Abstract: The embodiments of the present invention provide a method and a device for encoding and decoding videos, and relate to the communication field, and an efficient transformation matrix corresponding to features of each residual block is selected for transformation, which therefore improves encoding efficiency. The solution provided in an embodiment of the present invention is: generating a prediction residual according to input video data; selecting a set of best transformation matrixes among multiple candidate transformation matrixes according to an intra-frame prediction mode and rate-distortion criteria to perform transform-coding on the prediction residual and obtain a transformation result; and generating an encoded stream according to the transformation result and selected transformation matrix index information.Type: ApplicationFiled: April 20, 2012Publication date: August 9, 2012Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Mingyuan YANG, Dong WANG, Lianhuan XIONG, Xin ZHAO, Li ZHANG, Siwei MA, Wen GAO
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Publication number: 20110188579Abstract: A method, an apparatus and a system for a rapid motion search applied in template matching are disclosed. The method includes: selecting motion vectors of blocks related to a current block as candidate motion vectors of the current block; after the uniqueness of a series of the candidate motion vectors of the current block is maintained, calculating the cost function of the candidate motion vectors in a corresponding template area of a reference frame, and obtaining the motion vector of the best matching template from the candidate motion vectors of the current block. In the embodiments of the present invention, there is no need to determine a large search range and no need to determine the corresponding search path template, and it is only necessary to perform a search in a smaller range.Type: ApplicationFiled: March 28, 2011Publication date: August 4, 2011Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Sixin LIN, Lianhuan XIONG, Yingjia LIU, Steffen KAMP, Mathias WIEN
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Publication number: 20110085605Abstract: A method, a system, and an apparatus for evaluating video quality are disclosed to improve accuracy of the evaluation. The method includes: obtaining information about a transmitted video; resolving the information about the transmitted video to obtain video frame parameters, where the video frame parameters include a compression distortion parameter and/or a video quality distortion parameter with packet loss; and calculating a video frame quality parameter according to the video frame parameters. An apparatus and a system for evaluating video quality are provided. The embodiments of the present invention improve accuracy of video quality evaluation without reference.Type: ApplicationFiled: December 22, 2010Publication date: April 14, 2011Inventors: Qingpeng XIE, Fuzheng Yang, Shuai Wan, Sixin Lin, Lianhuan Xiong
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Publication number: 20100272183Abstract: Inter-frame prediction coding method, device and system are provided. The inter-frame prediction coding method includes: calculating distortions between a template area of current encoding block and each of M matching templates in L reference frames, to determine M offset vectors; acquiring M hypothesis prediction values of the encoding block to which the M matching templates correspond according to the determined M offset vectors, and calculating the template matching prediction value of the current encoding block according to the M hypothesis prediction values; comparing the template matching prediction value and original value of the current encoding block to acquire the residual of the current encoding block, and encoding the residual. The technical solution improves prediction performance of the video coding system and increases coding efficiency.Type: ApplicationFiled: July 6, 2010Publication date: October 28, 2010Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Steffen Kamp, Mathias Wien, Lianhuan Xiong, Yingjia Liu
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Publication number: 20100220791Abstract: A video coding method based on a motion skip mode (MSM) is provided. The method includes the following steps. A corresponding reference block of a current macro block to be encoded in a view-point reference image is determined, according to a direction of a disparity vector from a current image relative to the view-point reference image deduced by using a block smaller than 16×16 pixels as a base unit. The current macro block to be encoded is then encoded according to motion information of a macro block that the determined corresponding reference block belongs to. Other related video coding methods and corresponding codecs based on the MSM are also provided. Therefore, macro block motion information (MMI) of the currently encoded macro block at a corresponding position in the view-point reference image can be more accurately obtained, thereby improving a coding efficiency of the MSM.Type: ApplicationFiled: April 15, 2010Publication date: September 2, 2010Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Sixin Lin, Haitao Yang, Yilin Chang, Junyan Huo, Shan Gao, Lianhuan Xiong
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Publication number: 20100208814Abstract: An inter-frame prediction coding method is disclosed, which comprises: an encoder determines an encoding mode and performs encoding by comparing the obtained template matching motion vector and motion vector prediction value of the current block; a decoder receives the bitstream from the encoder, and determines a decoding mode and performs decoding by comparing the obtained template matching motion vector and motion vector prediction value of the current block. Inter-frame prediction encoding device and decoding device are also disclosed. With the method and device of the embodiments of the present invention, code rate can be saved during inter-frame prediction.Type: ApplicationFiled: April 15, 2010Publication date: August 19, 2010Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Lianhuan Xiong, Steffen Kamp, Michael Evertz, Mathias Wien