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1. CN112602325 - IMAGE DECODING DEVICE, IMAGE ENCODING DEVICE, PROGRAM, AND IMAGE PROCESSING SYSTEM

Office
China
Application Number 201980055504.4
Application Date 25.10.2019
Publication Number 112602325
Publication Date 02.04.2021
Publication Kind A
IPC
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 19/46
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
46Embedding additional information in the video signal during the compression process
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 19/136
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
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 19/436
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
42characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
436using parallelised computational arrangements
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 19/122
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
12Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
122Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
Applicants KDDI CORPORATION
KDDI 株式会社
Inventors UNNO KYOHEI
海野恭平
KAWAMURA KEI
河村圭
NAITO SEI
内藤整
Agents 北京怡丰知识产权代理有限公司 11293
Priority Data 2018245895 27.12.2018 JP
Title
(EN) IMAGE DECODING DEVICE, IMAGE ENCODING DEVICE, PROGRAM, AND IMAGE PROCESSING SYSTEM
(ZH) 图像解码装置、图像编码装置、程序和图像处理系统
Abstract
(EN)
An image decoding device 200 comprises: a motion vector decoding unit 241A configured to acquire a motion vector from encoded data; and a refining unit 241B configured to change a region used in the refining of the motion vector, such change carried out using information on the width and/or height of a block that uses the motion vector.

(ZH)
本发明所涉及的图像解码装置(200),其具备:运动矢量解码部(241A),其被配置为从编码数据中获取运动矢量;以及细化部(241B),其被配置为使用块的宽度和高度中的至少任意一个信息来变更运动矢量的细化所使用的区域,其中该块使用运动矢量。

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