Processing

Please wait...

Settings

Settings

Goto Application

1. CN110402579 - VIDEO DECODING METHOD AND APPARATUS AND VIDEO ENCODING METHOD AND APPARATUS

Office
China
Application Number 201880017180.0
Application Date 04.01.2018
Publication Number 110402579
Publication Date 01.11.2019
Publication Kind A
IPC
H04N 19/105
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
105Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
H04N 19/109
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
109among a plurality of temporal predictive coding modes
H04N 19/117
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
117Filters, e.g. for pre-processing or post-processing
H04N 19/176
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
17the unit being an image region, e.g. an object
176the region being a block, e.g. a macroblock
CPC
H04N 19/105
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
105Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
H04N 19/117
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
117Filters, e.g. for pre-processing or post-processing
H04N 19/176
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
17the unit being an image region, e.g. an object
176the region being a block, e.g. a macroblock
H04N 19/513
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
513Processing of motion vectors
H04N 19/109
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
109among a plurality of temporal predictive coding modes
H04N 19/139
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
134characterised by the element, parameter or criterion affecting or controlling the adaptive coding
136Incoming video signal characteristics or properties
137Motion inside a coding unit, e.g. average field, frame or block difference
139Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
Applicants SAMSUNG ELECTRONICS CO LTD
三星电子株式会社
Inventors ALSHIN ALEXANDER
亚历山大·阿尔辛
ALSHINA ELENA
艾琳娜·阿尔辛娜
Agents 北京铭硕知识产权代理有限公司 11286
北京铭硕知识产权代理有限公司 11286
Priority Data 62/442,108 04.01.2017 US
Title
(EN) VIDEO DECODING METHOD AND APPARATUS AND VIDEO ENCODING METHOD AND APPARATUS
(ZH) 视频解码方法和设备以及视频编码方法和设备
Abstract
(EN)
Disclosed is a video decoding method comprising: determining a displacement vector per unit time in a horizontal direction or a vertical direction of pixels of a current block, including pixels adjacent to the inside of the boundary of the current block, by using values for reference pixels included in a first reference block and a second reference block, without using stored values related to pixels located on the outside of the boundary of the first reference block and the second reference block; and acquiring a prediction block of the current block by performing block unit motion compensation and pixel group unit motion compensation of the current block, on the basis of a gradient value in a horizontal direction or a vertical direction of a first corresponding reference pixel in the first reference block corresponding to a current pixel included in a current pixel group in the current block, a gradient value in a horizontal direction or a vertical direction of a second correspondingreference pixel in the second reference block corresponding to the current pixel, a pixel value of the first corresponding reference pixel, a pixel value of the second corresponding reference pixel,and a displacement vector per unit time in a horizontal direction or a vertical direction of the current pixel, wherein the pixel group can comprise at least one pixel.

(ZH)
公开了一种视频解码方法,包括:通过使用包括在第一参考块和第二参考块中的参考像素的值,而不使用与位于第一参考块和第二参考块的边界外部的像素有关的存储值来确定当前块的包括与当前块的边界内部相邻的像素的多个像素在水平方向或垂直方向上每单位时间的位移矢量;并且基于第一参考块中的与当前块中的当前像素组中包括的当前像素相应的第一相应参考像素在水平方向或垂直方向上的梯度值、第二参考块中的与当前像素相应的第二相应参考像素在水平方向或垂直方向上的梯度值、第一相应参考像素的像素值、第二相应参考像素的像素值以及当前像素在水平方向或垂直方向上每单位时间的位移矢量来执行当前块的块单位运动补偿和像素组单位运动补偿以获取当前块的预测块,其中,像素组可包括至少一个像素。