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11. 发明公开

EP4200720A1 APPARATUS AND METHOD FOR PREDICTIVE COMPUTER MODELLING 审中-实审
公开(公告)号：EP4200720A1
公开(公告)日：2023-06-28
申请号：EP20966407.7
申请日：2020-12-23
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Minne , YANG, Mengyue , LIU, Furui , CHEN, Xu , CHEN, Zhitang , WANG, Jun
IPC分类号： G06F16/901

12. 发明公开

EP3982633A1 VIDEO ENCODER, VIDEO DECODER AND CORRESPONDING METHOD 审中-公开
公开(公告)号：EP3982633A1
公开(公告)日：2022-04-13
申请号：EP20833542.2
申请日：2020-06-24
申请人： Huawei Technologies Co., Ltd.
发明人： CHEN, Xu , YANG, Haitao , ZHANG, Lian
IPC分类号： H04N19/51 , H04N19/577
摘要： Embodiments of the present invention provide a video encoder, a video decoder, and a corresponding method. The method includes: when a plurality of preset conditions are satisfied, performing bi-directional optical flow BDOF processing on a current picture block, to obtain a predicted sample value of the current picture block, where the plurality of preset conditions include at least a condition that a size of the current picture block satisfies a first preset size, and that a size of the current picture block satisfies a first preset size includes: a height H of the current picture block is greater than or equal to 8, and when a product of a width W and the height H of the current picture block is equal to 64, the width W is not equal to the height H; reconstructing the current picture block based on at least the predicted sample value of the current picture block; and encoding a syntax element into a to-be-transmitted bitstream, where the syntax element is at least used to indicate that bi-directional prediction is applied. According to the embodiments of the present invention, encoding/decoding complexity and prediction accuracy can be balanced to some extent.

13. 发明公开

EP3968633A1 VIDEO ENCODING METHOD, VIDEO DECODING METHOD, AND TERMINAL 审中-公开
公开(公告)号：EP3968633A1
公开(公告)日：2022-03-16
申请号：EP21172622.9
申请日：2016-09-30
申请人： Huawei Technologies Co., Ltd.
发明人： AN, Jicheng , CHEN, Xu , ZHENG, Jianhua
IPC分类号： H04N19/00 , H04N19/52 , H04N19/463 , H04N19/573 , H04N19/577
摘要： A video encoding method, a video decoding method, and a terminal are provided. The video decoding method includes: obtaining, from a bitstream, an index of predicted motion information of a current image block in a candidate predicted motion information list, where the predicted motion information includes reference image information and a motion vector prediction value, and candidate predicted motion information in the candidate predicted motion information list is motion information of an adjacent block of the current image block in time domain or space domain; querying the candidate predicted motion information list based on the index, and using the found candidate predicted motion information as the predicted motion information; determining a correspondence between a motion vector difference and the motion vector prediction value based on the predicted motion information, and obtaining the motion vector difference from the bitstream; and adding the motion vector prediction value and the corresponding motion vector difference based on the correspondence to obtain a motion vector of the current image block. In this way, a motion vector of the current image block can be restored relatively accurately, and therefore an output video has relatively high quality in a case of a same bit rate.

14. 发明公开

EP3879827A1 IMAGE ENCODING METHOD AND APPARATUS FOR VIDEO SEQUENCE, AND IMAGE DECODING METHOD AND APPARATUS FOR VIDEO SEQUENCE 审中-实审
公开(公告)号：EP3879827A1
公开(公告)日：2021-09-15
申请号：EP19891412.9
申请日：2019-07-29
申请人： Huawei Technologies Co., Ltd.
发明人： CHEN, Xu , ZHENG, Jianhua
IPC分类号： H04N19/132
摘要： This application provides a picture encoding and decoding method and apparatus for a video sequence. The picture decoding method in this application includes: determining motion information of a to-be-decoded block; obtaining a first decoding prediction block of the to-be-decoded block based on the motion information; performing motion search with first precision in the prediction reference picture block to obtain at least two second decoding prediction blocks; performing downsampling on the first decoding prediction block to obtain a first sampling pixel array; performing downsampling on the at least two second decoding prediction blocks to obtain at least two second sampling pixel arrays; calculating a difference between the first sampling pixel array and each of the second sampling pixel arrays, and using, as a target prediction motion vector, a motion vector corresponding to a second sampling pixel array with a minimum difference; and obtaining a target decoding prediction block of the to-be-decoded block based on the target prediction motion vector, and decoding the to-be-decoded block based on the target decoding prediction block. In this application, a calculation amount of difference comparison is reduced, and picture coding efficiency is improved.

15. 发明公开

EP3846472A1 METHOD AND APPARATUS FOR DETERMINING MOTION VECTOR 审中-公开
公开(公告)号：EP3846472A1
公开(公告)日：2021-07-07
申请号：EP19861316.8
申请日：2019-09-23
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： CHEN, Xu , ZHENG, Jianhua
IPC分类号： H04N19/52
摘要： A motion vector determining method and apparatus are provided. A first matched distortion value between a forward prediction block and a backward prediction block of a current block is calculated (S101). Only a matched distortion value between a first prediction block and a fifth prediction block, a matched distortion value between a second prediction block and a sixth prediction block, a matched distortion value between a third prediction block and a seventh prediction block, and a matched distortion value between a fourth prediction block and an eighth prediction block are calculated (S102). The first prediction block, the second prediction block, the third prediction block, and the fourth prediction block are respectively prediction blocks obtained by shifting the forward prediction block upward, downward, leftward, and rightward. The fifth prediction block, the sixth prediction block, the seventh prediction block, and the eighth prediction block are respectively prediction blocks obtained by shifting the backward prediction block downward, upward, rightward, and leftward in a backward reference frame. A target forward prediction block and a target backward prediction block are determined based on a value relationship between the matched distortion values (S103). A target motion vector of the current block is determined based on the target forward prediction block and the target backward prediction block (S104). During each matching, only matched distortion values between prediction blocks obtained through shifting in four directions (upward, downward, leftward, and rightward) need to be calculated, thereby reducing a calculation amount of the matched distortion values, and improving motion vector calculation efficiency.

16. 发明公开

EP4318232A1 METHOD AND APPARATUS FOR APPLICATION ANIMATION LINKING 审中-实审
公开(公告)号：EP4318232A1
公开(公告)日：2024-02-07
申请号：EP22810274.5
申请日：2022-04-22
申请人： Huawei Technologies Co., Ltd.
发明人： CHEN, Xu , XIE, Bing , ZHOU, Shuai , WANG, Min
IPC分类号： G06F9/451
摘要： This application provides a method and an apparatus for animation transition in an application. According to the method, an electronic device performs a starting animation and an exiting animation of a first application by using a same animation leash object. The starting animation and the exiting animation may be understood as a same piece of animation. When the electronic device stops playing the starting animation and starts to play the exiting animation, a problem that a transition is not smooth when the starting animation is switched to the exiting animation does not occur.

17. 发明公开

EP3110151A1 ENCODING/DECODING PROCESSING METHOD AND DEVICE FOR IMAGE SEGMENTATION MANNER 审中-公开
标题翻译：国际货币基金组织/ DECODIERUNGSVERARBEITUNGSVERFAHREN UND VORRICHTUNGFÜRBILDSEGMENTIERUNGSWEISE
公开(公告)号：EP3110151A1
公开(公告)日：2016-12-28
申请号：EP15765620.8
申请日：2015-03-18
申请人： Huawei Technologies Co., Ltd.
发明人： CHEN, Xu
IPC分类号： H04N13/00 , H04N19/597 , H04N19/176
CPC分类号： H04N19/176 , H04N19/136 , H04N19/184 , H04N19/44 , H04N19/463 , H04N19/597 , H04N19/70
摘要： Embodiments of the present invention provide an encoding/decoding processing method and apparatus for an image segmentation manner, where the encoding processing method for an image segmentation manner includes: obtaining a size of a to-be-encoded image block and a serial number value of a used segmentation manner in a depth modeling mode DMM1 encoding process; obtaining an initial value value corresponding to the size of the image block, and obtaining, through calculation, an absolute value of a difference between the initial value value and the serial number value of the segmentation manner, where value=k-2 a-x , x is a quantity of bits that need to be saved, k is a quantity of all segmentation manners corresponding to the size of the image block, and a is a quantity of bits required for representing all the segmentation manners; and encoding the absolute value by using a-x bits, to obtain encoding information of the segmentation manner of the image block.
摘要翻译：本发明的实施例提供了一种用于图像分割方式的编码/解码处理方法和装置，其中用于图像分割方式的编码处理方法包括：获得要编码的图像块的大小和序列号值在深度建模模式DMM1编码过程中使用分割方式; 获得与图像块的尺寸对应的初始值，并且通过计算获得分割方式的初始值和序列号值之间的差的绝对值，其中值= k-2 ax，x 是需要保存的位数，k是与图像块的大小相对应的所有分割方式的数量，a是表示所有分割方式所需的位数量; 并且通过使用a-x位对绝对值进行编码，以获得图像块的分割方式的编码信息。

18. 发明公开

EP3099071A1 THREE-DIMENSIONAL IMAGE CODING METHOD, THREE-DIMENSIONAL IMAGE DECODING METHOD AND RELATED DEVICE 审中-公开
标题翻译：设备的方法进行编码的三维图像，三维图像解码方法及相关
公开(公告)号：EP3099071A1
公开(公告)日：2016-11-30
申请号：EP15848924.5
申请日：2015-07-15
申请人： Huawei Technologies Co. Ltd.
发明人： CHEN, Xu , ZHENG, Xiaozhen , LIN, Yongbing
IPC分类号： H04N19/13
CPC分类号： H04N19/597 , H04N19/105 , H04N19/176 , H04N19/182 , H04N19/184 , H04N19/44 , H04N19/593 , H04N19/70
摘要： Embodiments of the present invention disclose a three-dimensional image encoding method, a three-dimensional image decoding method, and a related apparatus. A three-dimensional video decoding method may include: decoding a video bitstream to obtain a single sample flag bit corresponding to a current image block in a current depth map; performing detection on a first adjacent prediction sampling point and a second adjacent prediction sampling point of the current image block in the current depth map if the single sample flag bit obtained by decoding indicates that a decoding mode corresponding to the current image block is a single depth intra-frame mode; and constructing a sample candidate list according to results of the detection on the first adjacent prediction sampling point and the second adjacent prediction sampling point, where the sample candidate list includes a first index location and a second index location; decoding the video bitstream to obtain a single sample index flag bit corresponding to the current image block. Solutions in the embodiments of the present invention help to reduce complexity of an SDM-based encoding and decoding algorithm and decrease a storage space occupation requirement.

19. 发明授权

EP2136504B1 TRANSMITTING AND RECEIVING METHOD, APPARATUS AND SYSTEM FOR THE SECURITY POLICY OF A MULTICAST SESSION 失效
标题翻译：发送和接收方法，关于多播会话与安全政策的设备和系统
公开(公告)号：EP2136504B1
公开(公告)日：2012-12-19
申请号：EP08783908.0
申请日：2008-08-07
申请人： Huawei Technologies Co., Ltd.
发明人： CHEN, Xu
IPC分类号： H04L9/08 , H04L29/06
CPC分类号： H04L9/083 , H04L9/0891 , H04L63/065 , H04L63/20 , H04L65/4076 , H04L65/608

20. 发明公开

EP2469787A1 METHOD AND DEVICE FOR PREVENTING NETWORK ATTACKS 失效
标题翻译： Verfahren und Vorrichtung zur Verhinderung von Netzwerkattacken
公开(公告)号：EP2469787A1
公开(公告)日：2012-06-27
申请号：EP09848395.1
申请日：2009-10-16
申请人： Huawei Technologies Co., Ltd.
发明人： SONG, Xuan , CHEN, Xu , JIANG, Sheng
IPC分类号： H04L29/06
CPC分类号： H04L61/103 , H04L63/1458 , H04L63/1466 , H04L69/16 , H04L69/22
摘要： The present invention relates to the communication field, and discloses a method for preventing a network attack. The method includes: receiving a packet; when the received packet is a first packet, judging whether a source IP address and a source MAC address information that are carried in the first packet exist in a first record table; if the source IP address and the source MAC address information that are carried in the first packet exist in the first record table, obtaining a second packet, the source addresses of which are the same as the source as addresses of the first packet, according to the first packet, and sending the second packet to a CPU for processing. Through this method, a network attack can be prevented effectively, and a packet can be sent to the CPU for processing in the case that the validity of the packet is determined. Therefore, some application that requires sending packets to the CPU for processing is supported. The present invention further discloses an apparatus for preventing a network attack.
摘要翻译：本发明涉及通信领域，并且公开了一种防止网络攻击的方法。该方法包括：接收分组; 当接收到的分组是第一分组时，判断第一分组中携带的源IP地址和源MAC地址信息是否存在于第一记录表中; 如果在第一个记录表中存在第一个数据包中携带的源IP地址和源MAC地址信息，则获得第二个数据包，其源地址与源作为第一个数据包的地址相同，根据第一分组，并将第二分组发送到CPU进行处理。通过这种方法，可以有效地防止网络攻击，并且在确定分组的有效性的情况下，可以将分组发送到CPU进行处理。因此，支持一些需要向CPU发送数据包进行处理的应用程序。本发明还公开了一种用于防止网络攻击的装置。

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