专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP4422177A2 METHOD AND APPARATUS FOR ENCODING OR DECODING VIDEO DATA IN FRUC MODE WITH REDUCED MEMORY ACCESSES 审中-实审
公开(公告)号：EP4422177A2
公开(公告)日：2024-08-28
申请号：EP24169286.2
申请日：2018-06-22
申请人： Canon Kabushiki Kaisha
发明人： LAROCHE, Guillaume , ONNO, Patrice , TAQUET, Jonathan , GISQUET, Christophe
IPC分类号： H04N19/513
CPC分类号： H04N19/105 , H04N19/139 , H04N19/176 , H04N19/433 , H04N19/52 , H04N19/587
摘要： The present disclosure concerns a method and a device for encoding or decoding video data. It concerns more particularly the encoding according to a particular encoding mode using a decoder side motion vector derivation mode referenced as frame-rate up conversion mode or FRUC mode.
It concerns encoding and decoding improvement which reduce the need for memory accesses when using an encoding mode where the motion information is predicted using a decoder side motion vector derivation method.

2. 发明公开

EP4369711A3 MOTION VECTOR OBTAINING METHOD AND APPARATUS 审中-实审
公开(公告)号：EP4369711A3
公开(公告)日：2024-07-17
申请号：EP24150170.9
申请日：2019-06-04
申请人： Huawei Technologies Co., Ltd.
发明人： CHEN, Huanbang , ZHAO, Yin , YANG, Haitao , CHEN, Jianle
IPC分类号： H04N19/513 , H04N19/433 , H04N19/105 , H04N19/139 , H04N19/176
CPC分类号： H04N19/513 , H04N19/176 , H04N19/105 , H04N19/139 , H04N19/433
摘要： This application provides a motion vector obtaining method and apparatus. The method includes: determining a first value range and a second value range; determining a target offset vector of a to-be-processed block and identifier information of a target picture, where the to-be-processed block includes at least one to-be-processed sub-block, a value of a component of the target offset vector in a first direction falls within the first value range, a value of a component of the target offset vector in a second direction falls within the second value range, and the first direction and the second direction are in an orthogonal relationship; determining, in the target picture based on a location of the to-be-processed sub-block and the target offset vector, a collocated sub-block of the to-be-processed sub-block; and determining a motion vector of the to-be-processed sub-block based on a motion vector of the collocated sub-block. In this application, a range of the target offset vector is limited, so that a quantity of memory read times can be reduced in a process of obtaining the motion vector of the collocated sub-block.

3. 发明授权

EP2941869B1 VIDEO BUFFERING OPERATIONS FOR RANDOM ACCESS IN VIDEO CODING 有权转让
公开(公告)号：EP2941869B1
公开(公告)日：2018-10-24
申请号：EP13803402.0
申请日：2013-11-26
申请人： QUALCOMM INCORPORATED
发明人： WANG, Ye-Kui , RAMASUBRAMONIAN, Adarsh Krishnan , CHEN, Ying
IPC分类号： H04N19/107 , H04N19/70
CPC分类号： H04N19/107 , H04N19/433 , H04N19/70
摘要： A system and method for processing video data having a first random access point (RAP) picture. An access unit having a first random access point (RAP) picture is received in a video bitstream. A subsequent access unit having a RAP picture that does not initialize the hypothetical reference decoder (HRD) is also received and, based on one or more random access skipped leading (RASL) pictures for the subsequent access unit not being present in the video bitstream, a picture buffer removal time for a picture buffer is shifted earlier based on a picture buffer removal delay offset.

4. 发明授权

EP3078193B1 REFERENCE PICTURE SELECTION 有权
公开(公告)号：EP3078193B1
公开(公告)日：2018-10-03
申请号：EP14816531.9
申请日：2014-12-02
申请人： QUALCOMM INCORPORATED
发明人： TAO, Siping , COBAN, Muhammed Zeyd , KARCZEWICZ, Marta
IPC分类号： H04N19/105 , H04N19/164 , H04N19/172 , H04N19/573 , H04N19/58 , H04N19/577
CPC分类号： H04N19/433 , H04N19/105 , H04N19/152 , H04N19/164 , H04N19/172 , H04N19/423 , H04N19/51 , H04N19/573 , H04N19/577 , H04N19/58
摘要： Techniques are described where a device that includes a video decoder outputs information identifying a picture to a device that includes a video encoder. The video encoder may determine pictures that could have been used to inter-prediction encode the identified picture and/or pictures following the identified picture in coding order. The video encoder may inter-prediction encode a current picture based on one or more of the determined pictures and/or the identified picture.

5. 发明公开

EP3285488A1 VIDEO DECODING DATA STORAGE METHOD AND MOTION VECTOR DATA COMPUTATION METHOD 有权
标题翻译：视频解码数据存储方法和运动矢量数据计算方法
公开(公告)号：EP3285488A1
公开(公告)日：2018-02-21
申请号：EP16799140.5
申请日：2016-04-13
申请人： Allwinner Technology Co. Ltd.
发明人： WANG, Jun , ZHANG, Jianhui , YUAN, Shun , LI, Jiejun
IPC分类号： H04N19/433 , H04N19/513
CPC分类号： H04N19/433 , H04N19/513 , H04N19/52
摘要： The present invention provides a method of storing decoded video data and a method of computing a motion vector. The method of storing decoded video data comprises: setting a reference frame queue table in a static random access memory and storing basic information of a plurality of reference frames in the reference frame queue table, wherein each unit of the reference frame queue table stores corresponding index information of one reference frame in a decoding buffer; storing a plurality of groups of frame buffering information corresponding to the index information in the decoding buffer, wherein each group of frame buffering information includes frame display order data and motion vector storage address information; and storing motion vector data of each reference frame in a dynamic random access memory, wherein the motion vector storage address information is address information of motion vector data of a coding tree unit of a corresponding block of the reference frame stored in the dynamic random access memory.
摘要翻译：本发明提供一种存储解码视频数据的方法和一种计算运动矢量的方法。存储解码视频数据的方法包括：在静态随机存取存储器中设置参考帧队列表，并在参考帧队列表中存储多个参考帧的基本信息，其中参考帧队列表的每个单元存储对应的索引解码缓冲器中的一个参考帧的信息; 将与所述索引信息对应的多组帧缓存信息存储在所述解码缓存中，其中每组帧缓存信息包括帧显示顺序数据和运动矢量存储地址信息; 以及将每个参考帧的运动矢量数据存储在动态随机存取存储器中，其中运动矢量存储地址信息是存储在动态随机存取存储器中的参考帧的对应块的编码树单元的运动矢量数据的地址信息。

6. 发明公开

EP3158751A4 ENCODER DECISIONS BASED ON RESULTS OF HASH-BASED BLOCK MATCHING 有权
标题翻译： CODIERERENTSCHEIDUNGEN AUF GRUNDLAGE VON ERGEBNISSEN VON HASH-BASIERTERBLOCKÜBEREINSTIMMUNG
公开(公告)号：EP3158751A4
公开(公告)日：2017-07-12
申请号：EP14895767
申请日：2014-06-23
申请人： MICROSOFT TECHNOLOGY LICENSING LLC
发明人： LI BIN , XU JIZHENG
IPC分类号： H04N19/597 , H04N19/105 , H04N19/117 , H04N19/137 , H04N19/176 , H04N19/433 , H04N19/523
CPC分类号： H04N19/52 , H04N19/105 , H04N19/117 , H04N19/137 , H04N19/176 , H04N19/433 , H04N19/523 , H04N19/70
摘要： Innovations in encoder-side decisions that use the results of hash-based block matching when setting parameters are presented. For example, some of the innovations relate to ways to select motion vector precision depending on the results of hash-based block matching. Other innovations relate to ways to selectively disable sample adaptive offset filtering depending on the results of hash-based block matching. Still other innovations relate to ways to select which reference pictures to retain in a reference picture set depending on the results of hash-based block matching.
摘要翻译：介绍了在设置参数时使用基于散列的块匹配结果的编码器端决策的创新。例如，一些创新涉及根据基于散列的块匹配的结果来选择运动矢量精度的方式。其他创新涉及根据基于散列的块匹配的结果选择性地禁用样本自适应偏移滤波的方式。另一些创新涉及根据基于散列的块匹配的结果来选择哪些参考图片保留在参考图片集中的方式。

7. 发明公开

EP3177019A1 MOTION VIDEO PREDICTION DECODING METHOD, AND MOTION VIDEO PREDICTION DECODING DEVICE 有权
标题翻译：运动视频预测解码方法和运动视频预测解码装置
公开(公告)号：EP3177019A1
公开(公告)日：2017-06-07
申请号：EP17152143.8
申请日：2012-09-10
申请人： NTT DoCoMo, Inc.
发明人： BOON, Choong Seng , SUZUKI, Yoshinori , TAN, Thiow Keng
IPC分类号： H04N19/463 , H04N19/503 , H04N19/70 , H04N19/196
CPC分类号： H04N19/50 , H04N19/105 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/15 , H04N19/152 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/196 , H04N19/42 , H04N19/433 , H04N19/44 , H04N19/463 , H04N19/503 , H04N19/52 , H04N19/56 , H04N19/61 , H04N19/625 , H04N19/70
摘要： The problem of the conventional technology was to repeatedly encode the same information using many bits in encoding of buffer description information about reference pictures to be used in video predictive encoding. A video predictive encoding device includes: input means to implement input of pictures constituting a video sequence; encoding means which conducts predictive coding of a target picture using, as reference pictures, pictures having been encoded and then reconstructed in the past, to generate compressed picture data; reconstruction means to decode the compressed picture data to reconstruct a reproduced picture; picture storage means to store the reproduced picture as a reference picture for encoding of a subsequent picture; and buffer management means to control the picture storage means, wherein the buffer management means controls the picture storage means, (prior to predictive encoding of the target picture), on the basis of buffer description information BD[k] related to reference pictures which are used in predictive encoding of the target picture, encodes the buffer description information BD[k] with reference to buffer description information BD[m] for a picture different from the target picture, and adds encoded data thereof to the compressed picture data.
摘要翻译：传统技术的问题是在编码关于将在视频预测编码中使用的参考图片的缓冲器描述信息时使用许多比特来重复编码相同的信息。视频预测编码设备包括：输入装置，用于实现构成视频序列的图片的输入; 编码装置，其使用过去编码并且然后重构的图片作为参考图片来执行对象图片的预测编码以产生压缩图片数据; 重构装置，用于解码压缩的图像数据以重建重现的图像; 图片存储装置，用于存储该再现的图片作为用于后续图片的编码的参考图片; 以及缓冲器管理装置，用于控制图片存储装置，其中缓冲器管理装置基于与参考图片有关的缓冲器描述信息BD [k]来控制图片存储装置（在对象图片的预测编码之前）用于目标图片的预测编码，参照与目标图片不同的图片的缓冲器描述信息BD [m]对缓冲器描述信息BD [k]进行编码，并将其编码数据添加到压缩图片数据。

8. 发明公开

EP3020202A4 SCALING LIST SIGNALING AND PARAMETER SETS ACTIVATION 审中-公开
标题翻译：缩放和信令参数列表QUANTITY激活
公开(公告)号：EP3020202A4
公开(公告)日：2017-03-01
申请号：EP14823500
申请日：2014-07-10
申请人： SHARP KK
发明人： DESHPANDE SACHIN G
IPC分类号： H04N19/70 , H04N19/124 , H04N19/187 , H04N19/30 , H04N19/433 , H04N19/44
CPC分类号： H04N19/30 , H04N19/124 , H04N19/137 , H04N19/187 , H04N19/433 , H04N19/44 , H04N19/52 , H04N19/593 , H04N19/70 , H04N19/86 , H04N19/91
摘要： A method for decoding a video sequence from a bitstream is described. The bitstream has a conformance that when a first SPS having a first layer ID is activated for a second layer and an infer scaling list flag is equal to 1 in the first SPS, an infer sealing list flag is equal to 0 for a second SPS that is active for a third layer specified in the first SPS.

9. 发明公开

EP2648179A4 IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD 有权
公开(公告)号：EP2648179A4
公开(公告)日：2017-01-25
申请号：EP11845682
申请日：2011-11-04
申请人： SHARP KK
发明人： SEKI YOSHITAKA , YAMAGUCHI MASAYUKI
IPC分类号： H04N19/426 , G09G3/20 , G09G3/36 , G09G5/00 , G09G5/36 , G09G5/393 , G09G5/395 , H04N13/04 , H04N19/00 , H04N19/423 , H04N19/433 , H04N19/50
CPC分类号： G06T9/00 , G09G5/393 , G09G5/395 , G09G2340/02 , H04N19/428 , H04N19/433 , H04N19/50
摘要： Provided is an image processing apparatus capable of simultaneous reduction in memory capacity and compressibility error. An output image data generating means 11 generates processed image data based on specific reference data and preprocessed image data. Reference data generating means 5 repeatedly executes an identical processing in one term made up of not less than two consecutive frames. When an object frame is a top frame in the term, restored reference data generated by data expanding means 15 is outputted as data expanding means. When the object frame is a second or subsequent frame in the term, simulated specific reference data is generated based on the restored reference data generated by the data expanding means 15 and preprocessed image data of the object frame, and outputted as specific reference data. When the object frame is a final frame in the term, in addition to the above operation, the reference data is generated based on the specific reference data and preprocessed image data of the object frame, and outputted to the data compressing means 13, to be compressed.

10. 发明授权

EP2770737B1 METHOD, APPARATUS AND PROGRAM FOR FOR MOTION VIDEO PREDICTION CODING, AND METHOD, APPARATUS AND PROGRAM FOR FOR MOTION VIDEO PREDICTION DECODING 有权
标题翻译：用于运动视频预测编码的方法，装置和程序以及用于运动视频预测解码的方法，装置和程序
公开(公告)号：EP2770737B1
公开(公告)日：2016-12-07
申请号：EP12841320.0
申请日：2012-09-10
申请人： NTT Docomo, Inc.
发明人： BOON, Choong Seng , SUZUKI, Yoshinori , TAN, Thiow Keng
IPC分类号： H04N19/463 , H04N19/503 , H04N19/70 , H04N19/196
CPC分类号： H04N19/50 , H04N19/105 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/15 , H04N19/152 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/196 , H04N19/42 , H04N19/433 , H04N19/44 , H04N19/463 , H04N19/503 , H04N19/52 , H04N19/56 , H04N19/61 , H04N19/625 , H04N19/70
摘要： The problem of the conventional technology was to repeatedly encode the same information using many bits in encoding of buffer description information about reference pictures to be used in video predictive encoding. A video predictive encoding device includes: input means to implement input of pictures constituting a video sequence; encoding means which conducts predictive coding of a target picture using, as reference pictures, pictures having been encoded and then reconstructed in the past, to generate compressed picture data; reconstruction means to decode the compressed picture data to reconstruct a reproduced picture; picture storage means to store the reproduced picture as a reference picture for encoding of a subsequent picture; and buffer management means to control the picture storage means, wherein the buffer management means controls the picture storage means, (prior to predictive encoding of the target picture), on the basis of buffer description information BD[k] related to reference pictures which are used in predictive encoding of the target picture, encodes the buffer description information BD[k] with reference to buffer description information BD[m] for a picture different from the target picture, and adds encoded data thereof to the compressed picture data.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式