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公开(公告)号:WO2019147813A1
公开(公告)日:2019-08-01
申请号:PCT/US2019/014956
申请日:2019-01-24
Applicant: QUALCOMM INCORPORATED
Inventor: ZHANG, Li , CHIEN, Wei-Jung , ZHANG, Kai , KARCZEWICZ, Marta
IPC: H04N19/117 , H04N19/82 , H04N19/174 , H04N19/583 , H04N19/176 , H04N19/157 , H04N19/182
CPC classification number: H04N19/117 , H04N19/109 , H04N19/124 , H04N19/157 , H04N19/174 , H04N19/176 , H04N19/182 , H04N19/583 , H04N19/82 , H04N19/865
Abstract: Methods and systems related to adaptive loop filters (ALFs) are discussed. Prior ALF designs may consider only direction and activity information for classification of the ALF. As such, ALF coding performance may be degraded in some examples where a less accurate ALF classification is determined. Improvements include determining ALF classifications based on deblocking filter results.
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公开(公告)号:WO2019092690A1
公开(公告)日:2019-05-16
申请号:PCT/IL2018/051086
申请日:2018-10-07
Applicant: AMIMON LTD.
Inventor: REZNIC, Zvi , DORMAN, Guy
IPC: H04N19/52 , H04N19/136 , H04N19/176
CPC classification number: H04N19/109 , H04N19/137 , H04N19/174 , H04N19/523
Abstract: Systems, devices, and methods of performing inter-frame prediction in video compression. A method includes: partitioning a video frame into superblocks, each superblock includes a plurality of macroblocks; determining an upper boundary on attributes that are associated with residual blocks of the plurality of macroblocks, based on pre-defined constraints on the total number of bits allocated for motion vector descriptions in a superblock; for each macroblock in a superblock, determining a partition size and a motion vector resolution which yield, for all macroblocks in the superblock, a motion vector description and a corresponding residual with attributes less than or equal to the upper boundary.
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公开(公告)号:WO2019065537A1
公开(公告)日:2019-04-04
申请号:PCT/JP2018/035195
申请日:2018-09-21
Applicant: シャープ株式会社
IPC: H04N19/117 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/523
CPC classification number: H04N19/117 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/523
Abstract: 動き補償フィルタを示すフラグのオーバーヘッドを抑制する。動き補償フィルタ装置(313)は、ある単位毎にフルサンプル画像に作用させるフィルタを切り替える動き補償フィルタ部(30912)と動き補償フィルタ部によるフィルタの切替単位を選択するMCフィルタパラメータ導出部(3039)とを備えている。
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公开(公告)号:WO2019059736A1
公开(公告)日:2019-03-28
申请号:PCT/KR2018/011330
申请日:2018-09-21
Applicant: 삼성전자주식회사
IPC: H04N19/66 , H04N19/68 , H04N19/13 , H04N19/174 , H04N19/124 , H04N19/423
CPC classification number: H04N19/124 , H04N19/13 , H04N19/174 , H04N19/423 , H04N19/66 , H04N19/68
Abstract: 일 실시예에 따른 영상 인코딩 장치는, 입력 영상을 복수의 슬라이스로 분할하는 슬라이스 분배기; 상기 복수의 슬라이스를 각각 복수의 서브 슬라이스로 분할하는 서브 슬라이스 분배기; 및 상기 입력 영상의 데이터를 상기 슬라이스 단위로 처리하여 상기 입력 영상의 데이터에 대한 예측값을 결정하고, 상기 예측값을 이용하여 심볼을 생성하고, 상기 심볼에 대해 상기 서브 슬라이스 단위로 엔트로피 인코딩을 수행하여 상기 입력 영상에 대한 비트스트림을 출력하는 인코딩 모듈;을 포함한다.
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公开(公告)号:WO2018224006A1
公开(公告)日:2018-12-13
申请号:PCT/CN2018/090271
申请日:2018-06-07
Applicant: MEDIATEK INC.
Inventor: LAI, Chen-Yen , CHEN, Ching-Yeh , HUANG, Yu-Wen
IPC: H04N19/82 , H04N19/86 , H04N19/169 , H04N19/174
CPC classification number: H04N19/56 , H04N19/105 , H04N19/132 , H04N19/137 , H04N19/169 , H04N19/17 , H04N19/174 , H04N19/182 , H04N19/186 , H04N19/36 , H04N19/82 , H04N19/86 , H04N19/88
Abstract: Aspects of the disclosure provide a method for forming patch groups. The method can include determining a list of K motion vectors (MVs) for each current patch to form a patch group that includes the respective current patch and K reference patches corresponding to the K MVs, wherein the current patches are included in a reconstructed picture. The list of K MVs of a first current patch that is one of the current patches is determined by performing a neighbor-based fast search (NBFS) process. The NBFS process can include selecting K MVs from lists of K MVs of at least one neighboring current patch of the first patch to form a first list of K MVs of the first current patch, and performing a first refinement process to obtain a second list of K MVs of the first current patch based on the first list of K MVs.
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公开(公告)号:WO2018171890A1
公开(公告)日:2018-09-27
申请号:PCT/EP2017/057025
申请日:2017-03-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD. , ESENLIK, Semih
Inventor: ESENLIK, Semih , KOTRA, Anand, Meher , ZHAO, Zhijie
IPC: H04N19/17 , H04N19/174 , H04N19/176 , H04N19/503 , H04N19/593
CPC classification number: H04N19/17 , H04N19/174 , H04N19/176 , H04N19/503 , H04N19/593
Abstract: The invention relates to an apparatus (151) for decoding encoded video data, the video data comprising one or more frames, each frame being partitioned into a plurality of regions, each region comprising one or more video coding blocks. The decoding apparatus (151) comprises: a decoding unit (153) configured to decode the encoded video data for providing a residual video coding block associated with a current video coding block of a current frame; a prediction unit (155) configured to generate for the current video coding block a predicted video coding block; a restoration unit (159) configured to restore the current video coding block on the basis of the residual video coding block and the predicted video coding block; and a flip unit (157) configured to flip each region of a subset of the plurality of regions of the current frame about a flip axis of that region. Moreover, the invention relates to a corresponding encoding apparatus (101).
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公开(公告)号:WO2018155983A1
公开(公告)日:2018-08-30
申请号:PCT/KR2018/002340
申请日:2018-02-26
Applicant: 주식회사 케이티
Inventor: 이배근
IPC: H04N19/96 , H04N19/119 , H04N19/70 , H04N19/172 , H04N19/174
CPC classification number: H04N19/119 , H04N19/172 , H04N19/174 , H04N19/70 , H04N19/96
Abstract: 본 발명은 비디오 신호 처리 방법 및 장치에 관한 것이다. 본 발명에 따른 영상 복호화 방법은, 현재 코딩 블록에 대한 블록 파티션 정보를 이용하여, 현재 코딩 블록이 이웃 병렬 처리 블록과 적어도 수평, 수직 또는 대각선 방향 중 어느 하나로 인접한 현재 병렬 처리 블록인지를 확인하는 단계, 및 상기 현재 병렬 처리 블록에 대해 상기 이웃 병렬 처리 블록과 함께 병렬 복호화하는 단계를 포함할 수 있다. 본 발명에 의하면, 부호화/복호화 대상 블록을 독립적으로 병렬 처리함으로써, 영상 신호의 부호화/복호화 효율을 증가시킬 수 있다.
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公开(公告)号:WO2018011042A1
公开(公告)日:2018-01-18
申请号:PCT/EP2017/066844
申请日:2017-07-05
Applicant: KONINKLIJKE KPN N.V. , NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
Inventor: THOMAS, Emmanuel , NIAMUT, Omar, Aziz , KOENEN, Robert
IPC: H04N19/436 , H04N19/70 , H04N19/174 , H04N19/423 , H04N19/119
CPC classification number: H04N19/167 , H04L69/04 , H04N19/119 , H04N19/174 , H04N19/176 , H04N19/188 , H04N19/423 , H04N19/436 , H04N19/46 , H04N19/70 , H04N19/88
Abstract: A method is described for forming output video frames by a decoder device wherein the method comprises: receiving a bitstream, the bitstream comprising bitstream parts representing encoded media data of video tiles and tile positioning information associated with the encoded video tiles; extracting tile positioning information from the bitstream, the tile positioning information comprising tile identifiers for identifying encoded video tiles, a tile identifier being associated with one or more boundary identifiers, an boundary identifier identifying an boundary of a video tile identified by a tile identifier; determining a tile map on the basis of the boundary identifiers in the tile positioning information, the tile map representing a spatial layout of video tiles in an output video frame; and, forming an output video frame, including identifying parts of the bitstream representing encoded media data of video tiles identified in the tile map, decoding the identified encoded media data and copying the decoded media data in the output video frame buffer according to the spatial layout of the tile map.
Abstract translation: 描述了一种用于由解码器设备形成输出视频帧的方法,其中该方法包括:接收比特流,该比特流包括表示视频瓦片的编码媒体数据和与该编码相关联的瓦片定位信息的比特流部分 视频图块; 所述图块定位信息包括用于标识经编码的视频图块的图块标识符,图块标识符与一个或多个边界标识符相关联,边界标识符标识由图块标识符标识的视频图块的边界; 基于瓦片定位信息中的边界标识符确定瓦片地图,瓦片地图表示输出视频帧中的视频瓦片的空间布局; 以及形成输出视频帧,所述输出视频帧包括标识表示在瓦片地图中标识的视频瓦片的编码媒体数据的比特流的部分,对所标识的编码的媒体数据进行解码并且根据空间布局将解码的媒体数据复制到输出视频帧缓冲器中 的瓷砖地图。 p>
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公开(公告)号:WO2017206606A1
公开(公告)日:2017-12-07
申请号:PCT/CN2017/080863
申请日:2017-04-18
Applicant: 阿里巴巴集团控股有限公司 , 卢伟勤
Inventor: 卢伟勤
IPC: H04N19/117
CPC classification number: G06T3/4038 , G06F16/5866 , G06T9/00 , G06T11/00 , H04N19/117 , H04N19/129 , H04N19/162 , H04N19/174 , H04N19/176 , H04N19/426 , H04N19/46
Abstract: 本申请实施例涉及一种图片的生成方法及装置,在一种图片的生成方法中,根据待生成图片的图片格式,确定待生成图片的各个待生成子图片的描述信息,并根据该描述信息,对各个待生成子图片进行排序;之后按照顺序依次生成各个子图片,其中,在按照顺序依次生成各个子图片的过程中,每生成一个子图片,就将该子图片进行预处理后添加到图片文件中;当图片文件中保存了所有的子图片时,所有的子图片构成了待生成图片。由此可以看出,本申请是按照顺序依次生成各个子图片,也即在内存中只需保存一个子图片的信息,从而避免了现有技术中需要在内存中保存待生成图片的完整信息而浪费计算机的内存资源的问题。
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公开(公告)号:WO2017126333A1
公开(公告)日:2017-07-27
申请号:PCT/JP2017/000209
申请日:2017-01-06
Applicant: ソニー株式会社
Inventor: 大和 敦
IPC: H04N19/70 , H04N19/13 , H04N19/174
CPC classification number: H04N19/13 , H04N19/174 , H04N19/70
Abstract: 本開示は、符号化・復号のスループットを向上させることができるようにする画像処理装置および方法に関する。 画像に関する情報が2値化された2値化データを算術符号化するかを示すフラグ情報を設定し、その画像に関する情報を符号化して、設定されたフラグ情報を含む符号化データを生成するようにする。例えば、そのフラグ情報に基づいて、画像に関する情報を2値化して2値化データを生成して算術符号化することにより符号化データを生成するか、若しくは、画像に関する情報を2値化することにより符号化データを生成するようにしてもよい。本開示は、例えば、画像処理装置、画像符号化装置、または画像復号装置等に適用することができる。
Abstract translation: 本公开涉及可以提高编码和解码的吞吐量的图像处理装置和方法。 设置标志信息,该标志信息指示是否对关于图像的信息是二进制编码的二值化数据执行算术编码,对图像编码信息,并生成包括设置标志信息的编码数据 到。 例如,基于标志信息,可以通过二值化图像的信息来生成编码数据以生成二值化数据并对该信息进行算术编码,或者将图像的信息二值化 编码数据可以被生成。 本公开可以应用于例如图像处理装置,图像编码装置,图像解码装置等。 p>
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