VIDEO ENCODING AND DECODING METHOD AND DEVICE

    公开(公告)号:US20180199058A1

    公开(公告)日:2018-07-12

    申请号:US15741018

    申请日:2016-07-28

    Abstract: Disclosed is an encoding device. The present encoding device comprises a processor which: divides a target block of the current frame into a first area and a second area according to a predetermined division method and an interface communicating with a decoding device; searches for a first motion vector for the first area in a first reference frame, so as to generate a first prediction block including an area corresponding to the first area; divides the first prediction block into a third area and a fourth area according to the predetermined division method, and generates boundary information; searches for a second motion vector for the fourth area corresponding to the second area in a second reference frame, and generates a second prediction block including an area corresponding to the fourth area; merges the first prediction block and the second prediction block according to the boundary information so as to generate a third prediction block corresponding to the target block; and controls the interface to transmit the first motion vector and the second motion vector to the decoding device.

    IMAGE CODING METHOD AND DEVICE FOR BUFFER MANAGEMENT OF DECODER, AND IMAGE DECODING METHOD AND DEVICE

    公开(公告)号:US20170223362A1

    公开(公告)日:2017-08-03

    申请号:US15492123

    申请日:2017-04-20

    CPC classification number: H04N19/152 H04N19/44 H04N19/70

    Abstract: Provided are methods and apparatuses for encoding and decoding an image. The method of encoding includes: determining a maximum size of a buffer to decode each image frame by a decoder, a number of image frames to be reordered, and latency information of an image frame having a largest difference between an encoding order and a display order from among image frames that form an image sequence, based on an encoding order the image frames that form the image sequence, an encoding order of reference frames referred to by the image frames, a display order of the image frames, and a display order of the reference frames; and adding, to a mandatory sequence parameter set, a first syntax indicating the maximum size of the buffer, a second syntax indicating the number of image frames to be reordered, and a third syntax indicating the latency information.

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