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    Intra-prediction method, and encoder and decoder using same
    6.
    发明专利
    Intra-prediction method, and encoder and decoder using same 未知

    公开(公告)号：GB2505345B

    公开(公告)日：2018-05-09

    申请号：GB201319111

    申请日：2012-04-20

    Applicant: LG ELECTRONICS INC

    Inventor： JOONYOUNG PARK ,  SEUNGWOOK PARK ,  JAEHYUN LIM ,  JUNGSUN KIM ,  YOUNGHEE CHOI ,  BYEONGMOON JEON ,  YONGJOON JEON

    IPC: H04N19/105 ,  H04N19/11 ,  H04N19/176

    Abstract: A method for decoding video performed by a decoding apparatus comprises (S 1410) receiving information on an intra prediction mode for a current block (700), (S310, S 1420) determining the intra prediction mode for the current block (700) as a horizontal prediction mode based on the information on the intra prediction mode, (S340, S1430) deriving predicted samples of the current block (700) based on the horizontal prediction mode, and (S 1440) generating a reconstructed block using the derived predicted samples. The predicted samples include filtered predicted samples. The filtered predicted samples are adjacent to the upper boundary of the current block (700) and is located in a first row of the current block (700). A predicted sample is derived based on a reference sample located in a horizontal prediction direction with regard to the predicted sample, wherein the reference sample is adjacent to a left boundary of the current block (700). A filtered predicted sample (720) is derived by applying filtering based on a first reference sample (730) located in the horizontal prediction direction with regard to the filtered predicted sample and a second reference sample (710) neighboring an upper side of the filtered predicted sample. The first reference sample (730) is located outside the current block (700) and is adjacent to the left boundary of the current block (700), and the second reference sample (710) is located outside the current block (700) and is adjacent to the upper boundary of the current block (700).

    Method for managing a reference picture list,and apparatus using same
    7.
    发明专利
    Method for managing a reference picture list,and apparatus using same 未知

    公开(公告)号：GB2548739A

    公开(公告)日：2017-09-27

    申请号：GB201709457

    申请日：2012-04-20

    Applicant: LG ELECTRONICS INC

    Inventor： JAEHYUN LIM ,  SEUNGWOOK PARK ,  JUNGSUN KIM ,  JOONYOUNG PARK ,  YOUNGHEE CHOI ,  BYEONGMOON JEON ,  YONGJOON JEON

    IPC: H04N19/423 ,  H04N19/103 ,  H04N19/172 ,  H04N19/31 ,  H04N19/44 ,  H04N19/503 ,  H04N19/573 ,  H04N19/577

    Abstract: Provided is a video decoding method comprising the steps of obtaining prediction mode information for a current block in a current picture from a received bitstream. determining a prediction mode for the current block based on the prediction mode information, performing reference picture management based on Picture order count (POC) order about decoded pictures sorted in a decoded picture buffer (DPB), performing inter prediction for the current block based on a reference picture included in the reference picture set and generating a reconstructed picture based on the result of the inter prediction. Performing the picture management includes removing pictures marker unused for reference from the DPB. Preferably information is received indicating a maximum number of pictures of the DPB as well as determining the number of long-term and short-term reference pictures stored in the DPB S500. Preferably the removed decoded picture is a short-term reference picture having the smallest POC out of the short-term reference pictures present S520. Preferably said picture is removed when the number of decoded pictures in the DPB is equal to the maximum number of pictures S510 and the number of short term reference pictures is larger than 0.

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