An apparatus, a method and a computer program for video coding and decoding

    公开(公告)号:FI20165257L

    公开(公告)日:2017-09-25

    申请号:FI20165257

    申请日:2016-03-24

    Inventor: HANNUKSELA MISKA

    Abstract: There is provided a method comprising determining a reference region of a picture, determining a target region of the picture, obtaining information of a motion field of the reference region, and including an indication into a bitstream that a motion vector field of the reference region of the picture is a source for motion vector prediction for the target region of the picture. There is also provided a method comprising decoding information that a motion vector field of a reference region of a picture is a source for motion vector prediction for a target region of the picture, decoding the reference region of the picture, and decoding the target region of the picture.

    AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING

    公开(公告)号:CA2942838A1

    公开(公告)日:2015-09-24

    申请号:CA2942838

    申请日:2015-03-16

    Inventor: HANNUKSELA MISKA

    Abstract: A method comprising:encoding a first picture on a first scalability layer and on a lowest temporal sub-layer;encoding a second picture on a second scalability layer and on the lowest temporal sub- layer, wherein the first picture and the second picture represent the same timeinstant,encoding one or more first syntax elements, associated with the first picture, with a value indicating that a picture type of the first picture is other than a step-wise temporal sub-layer access (STSA) picture; encoding one or more second syntaxelements, associated with the second picture, with a value indicating that a picture type of the second picture is a step-wise temporal sub-layer access picture; andencoding at least a third picture on a second scalability layer and on a temporal sub-layer higher than the lowest temporal sub-layer.

    Um aparelho e um método para codificação e decodificação de vídeo

    公开(公告)号:BR112021024071A2

    公开(公告)日:2022-01-11

    申请号:BR112021024071

    申请日:2020-05-22

    Inventor: HANNUKSELA MISKA

    Abstract: um aparelho e um método para codificação e decodificação de vídeo. um método para codificação ou decodificação de vídeo que compreende determinar um número de unidades a serem atribuídas às partições; indicar ou inferir um número de partições explicitamente dimensionadas a serem atribuídas; indicar tamanhos para, ou um número de unidades nas partições explicitamente dimensionadas; e indicar ou inferir um número de partições uniformemente dimensionadas a serem atribuídas.

    INTER-LAYER VIDEO ENCODING AND DECODING WITH ADAPTIVE RESOLUTION CHANGE AT INDICATED SWITCHING POINTS

    公开(公告)号:CA2897152C

    公开(公告)日:2019-03-05

    申请号:CA2897152

    申请日:2014-01-07

    Abstract: Various methods, apparatuses and computer program products for video encoding and decoding. In some embodiments a first picture having a first resolution on a first layer is encoded without inter-layer prediction; a second picture having a second resolution on a second layer is encoded without inter-layer prediction; a third picture having the second resolution on the second layer is encoded without inter-layer prediction and without temporally referencing to pictures prior to the second picture. Further, a corresponding indication is encoded. In some embodiments one or more indications are received to determine if a switching point, referring to a picture coded using inter- layer prediction, from the first layer to the second layer exists, and if so, pictures in the first layer prior to the switching point; pictures associated with the switching point; and pictures in the second layer after the switching point may be decoded.

    Method and apparatus for video coding

    公开(公告)号:AU2017204114B2

    公开(公告)日:2019-01-31

    申请号:AU2017204114

    申请日:2017-06-16

    Inventor: HANNUKSELA MISKA

    Abstract: A method, apparatus and computer program product are provided that permit values of certain parameters or syntax elements, such as the HRD parameters and/or a level 5 indicator, to be taken from a syntax structure, such as a sequence parameter set. In this regard, values of certain parameters or syntax elements, such as the HRD parameters and/or a level indicator, may be taken from a syntax structure of a certain other layer, such as the highest layer, present in an access unit, coded video sequence and/or bitstream even if the other layer, such as the highest layer, were not decoded. The syntax element values 10 from the other layer, such as the highest layer, may be semantically valid and may be used for conformance checking, while the values of the respective syntax elements from other respective syntax structures, such as sequence parameter sets, may be active or valid otherwise.

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