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1. 发明公开

EP4071756A1 AUDIO ENCODING METHOD AND DEVICE AND AUDIO DECODING METHOD AND DEVICE 审中-实审
公开(公告)号：EP4071756A1
公开(公告)日：2022-10-12
申请号：EP21738625.9
申请日：2021-01-08
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Bin , XIA, Bingyin , WANG, Zhe , ZHOU, Jiantong
IPC分类号： G10L19/18 , G10L21/02
摘要： An audio encoding method and device and an audio decoding method and device are provided. The audio encoding method includes: obtaining a current frame of an audio signal, where the current frame includes a high frequency band signal and a low frequency band signal (201); obtaining a compatible layer encoding parameter of the current frame based on the high frequency band signal and the low frequency band signal (202); obtaining an enhancement layer encoding parameter of the current frame based on the high frequency band signal (203); and performing bitstream multiplexing on the compatible layer encoding parameter and the enhancement layer encoding parameter to obtain an encoded bitstream (204). The method can implement compatibility between a new encoding/decoding device and an old encoding/decoding device, and can improve audio signal encoding/decoding efficiency.

2. 发明授权

EP2608544B1 SCANNING METHOD AND DEVICE, REVERSE SCANNING METHOD AND DEVICE 有权
标题翻译：扫描的方法和装置，倒置扫描的方法和装置
公开(公告)号：EP2608544B1
公开(公告)日：2017-03-01
申请号：EP11777233.5
申请日：2011-05-24
申请人： Huawei Technologies Co., Ltd.
发明人： YANG, Haitao , ZHOU, Jiantong
IPC分类号： H04N19/176 , H04N19/129 , H04N19/61 , H04N19/157 , H04N19/50
CPC分类号： H04N19/50 , H04N19/129 , H04N19/157 , H04N19/176 , H04N19/61

3. 发明公开

EP2667604A1 MOTION PREDICTION OR COMPENSATION METHOD 有权
标题翻译：运动预测或补偿方法
公开(公告)号：EP2667604A1
公开(公告)日：2013-11-27
申请号：EP12736417.2
申请日：2012-01-21
申请人： Huawei Technologies Co., Ltd.
发明人： LIN, Sixin , YANG, Mingyuan , ZHOU, Jiantong , YU, Haoping
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/533 , H04N19/52 , H04N19/523 , H04N19/56
摘要： Embodiments of the present invention provide a motion prediction or compensation method during a video coding and decoding process. A motion prediction or compensation method provided in the embodiments of the present invention includes: acquiring a candidate motion vector set; conducting a refined search for an optimal motion vector based on information of the candidate motion vector set; and performing motion prediction or compensation by using the motion vector acquired by the refined search. This improves coding performance and meanwhile maintains reasonable complexity.
摘要翻译：本发明的实施例在视频编码和解码过程期间提供运动预测或补偿方法。本发明实施例提供的运动预测或补偿方法包括：获取候选运动矢量集合; 基于所述候选运动向量组的信息对最优运动向量进行精确搜索; 并通过使用由精确搜索获得的运动矢量执行运动预测或补偿。这提高了编码性能，同时保持合理的复杂性。

4. 发明公开

EP2202986A1 AN ADAPTIVE PREDICTING DEVICE AND METHOD 审中-公开
标题翻译：适应症VERFAHRENVORHERSAGEGERÄT
公开(公告)号：EP2202986A1
公开(公告)日：2010-06-30
申请号：EP08841135.0
申请日：2008-10-15
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Yingjia , LIN, Sixin , GAO, Shan , ZHOU, Jiantong , FU, Jiali , XIE, Qingpeng , ZHANG, Xiaosen , XIONG, Lianhuan
IPC分类号： H04N7/34
CPC分类号： H04N19/649 , H04N19/103 , H04N19/109 , H04N19/11 , H04N19/119 , H04N19/12 , H04N19/122 , H04N19/147 , H04N19/15 , H04N19/176 , H04N19/19 , H04N19/593 , H04N19/70
摘要： An adaptive frame prediction method includes: using at least one block partition method to partition an MB that needs to perform intra-frame prediction; using at least one prediction mode to predict each sub-block in each block partition result and obtaining a sub-block residual of a current sub-block; selecting multiple transformation methods according to the sub-block type to transform each sub-block residual and obtain the code-rate distortion ratio of the current sub-block; performing frame prediction for the MB according to the block partition method, the prediction mode, and the transformation method corresponding to the code-rate distortion ratio of a minimum value among all code-rate distortion ratios. An adaptive prediction apparatus disclosed herein includes: a block partition module, a predicting module, a transforming module, a selecting module, and a frame predicting module. The method and the apparatus herein perform the intra-frame or inter-frame coding flexibly, get more adaptive to the local texture statistic features of the MBs, and improve the coding efficiency.
摘要翻译：自适应帧预测方法包括：使用至少一个块分割方法对需要执行帧内预测的MB进行分区; 使用至少一个预测模式来预测每个块分区结果中的每个子块，并获得当前子块的子块残差; 根据子块类型选择多个变换方法以变换每个子块残差并获得当前子块的码率失真比; 根据块分割方法，预测模式和与所有码率失真率中的最小值的码率失真比相对应的变换方法对MB执行帧预测。本文公开的自适应预测装置包括：块分割模块，预测模块，变换模块，选择模块和帧预测模块。这里的方法和装置灵活地进行帧内或帧间编码，更适应于MB的局部纹理统计特征，提高了编码效率。

5. 发明公开

EP2001236A9 A VIDEO LAYERED CODING METHOD AND A CODING AND DECODING DEVICE IN INTERLACED MODE 有权
标题翻译：一种视频层编码方法及一种交织模式下的编码和解码装置
公开(公告)号：EP2001236A9
公开(公告)日：2009-03-04
申请号：EP06828297.9
申请日：2006-12-12
申请人： Huawei Technologies Co., Ltd.
发明人： XIE, Qingpeng , XIONG, Lianhuan , LIN, Sixin , ZENG, Pengxin , ZHOU, Jiantong
IPC分类号： H04N7/26
CPC分类号： H04N19/187 , H04N19/105 , H04N19/16 , H04N19/30 , H04N19/46
摘要： A video layered coding method, a coding and decoding device in an interlaced mode are provided, which can improve the inter-layer predictive coding and decoding efficiency in the interlaced mode, and further improve the video compression efficiency. In an i->p mode, an interlaced frame in a base layer is divided into fields, and a frame in an enhanced layer is predicted with a corresponding field in time according to the corresponding relationship on the time axis; in a p->i mode, two successive frames in the base layer corresponding to two fields in the enhanced layer on the time axis are interlaced to form one frame, and then the interlaced frame in the enhanced layer is predicted. An optional frame prediction method, that is, an interlaced frame is not selected to be divided into fields, but is directly used to predict the corresponding frame in the enhanced layer, is also provided for video streams with different characteristics. In the case that the inter-layer frame rate is consistent, the corresponding relationship in time is used to perform the prediction, but in the case that the inter-layer frame rate is inconsistent, adjacent frames or fields on the time axis are used to perform the inter-layer predictive coding and decoding.
摘要翻译：提供了一种隔行模式的视频分层编码方法和编解码设备，可以提高隔行模式下的层间预测编码和解码效率，进一步提高视频压缩效率。在i-> p模式下，根据时间轴上的对应关系，将基础层中的隔行帧划分为多个字段，并根据相应的字段对增强层中的一帧进行预测; 在p-> i模式中，在时间轴上与增强层中的两个场对应的基础层中的两个连续帧交织以形成一个帧，然后预测增强层中的隔行帧。一种可选的帧预测方法，即隔行帧未被选择为被分割成字段，而是直接用于预测增强层中的对应帧，也被提供给具有不同特性的视频流。在层间帧速率一致的情况下，使用时间上的对应关系来进行预测，但是在层间帧速率不一致的情况下，时间轴上的相邻帧或场被用于执行层间预测编码和解码。

6. 发明公开

EP4411645A1 IMAGE PROCESSING METHOD AND APPARATUS 审中-公开
公开(公告)号：EP4411645A1
公开(公告)日：2024-08-07
申请号：EP22897851.6
申请日：2022-11-23
申请人： Huawei Technologies Co., Ltd.
发明人： HU, Xiangyu , XU, Weiwei , WEN, Jinsong , JIA, Yanbing , ZHOU, Jiantong , ZHAI, Qiyan , YU, Quanhe , ZENG, Yihua , WANG, Zizhong , WANG, Yichuan , CHEN, Hu , AI, Jinqin , HU, Yutong
IPC分类号： G06T9/00
CPC分类号： G06T3/40 , G06T9/00
摘要： This application provides a picture processing method and an apparatus. At an encoder side, the method includes: The encoder side obtains a to-be-processed picture, obtains a plurality of groups of visual sensory experience parameters, and encodes the to-be-processed picture and the plurality of groups of visual sensory experience parameters. At a decoder side, the method includes: The decoder side obtains a to-be-processed picture, obtains a zoom-in operation instruction, obtains one or more groups of visual sensory experience parameters corresponding to one or more local pictures, and separately processes the corresponding local picture based on the one or more groups of visual sensory experience parameters to obtain a processed local picture. In this application, a picture presented by a zoomed-in region can be used to simulate visual sensory experience for a real scene that is of a to-be-zoomed-in region and that is perceived by human eyes. This resolves a problem that a zoomed-in picture is unclear and blurred, and can improve visual zoom-in experience of a user.

7. 发明公开

EP4002846A3 VIDEO IMAGE CODING AND DECODING METHOD AND APPARATUS 审中-实审
公开(公告)号：EP4002846A3
公开(公告)日：2022-06-08
申请号：EP21184288.5
申请日：2012-11-02
申请人： Huawei Technologies Co., Ltd.
发明人： WEN, Xing , AU, Oscar , YANG, Haitao , ZHOU, Jiantong
IPC分类号： H04N19/52 , H04N19/436
摘要： The present invention relates to a method for coding and decoding a video signal, and provides a method for coding a video signal, including: determining space adjacent motion information of a parallel motion processing region PR; determining time adjacent motion information of a current block, where the current block is located in the parallel motion processing region PR; determining a candidate motion information set according to the space adjacent motion information of the parallel motion processing region PR and the time adjacent motion information of the current block; selecting motion information of the current block from the candidate motion information set, and sending a motion information indication of the current block to a decoding end, so as to assist the decoding end in determining the motion information of the current block; and performing motion compensation coding for the current block according to the motion information of the current block. In addition, a decoding method corresponding to the coding method and an apparatus for implementing the coding and decoding are also provided.

8. 发明公开

EP3993384A1 PIXEL ACQUISITION CIRCUIT, DYNAMIC VISION SENSOR, AND IMAGE ACQUISITION APPARATUS 审中-实审
公开(公告)号：EP3993384A1
公开(公告)日：2022-05-04
申请号：EP20847374.4
申请日：2020-07-06
申请人： Huawei Technologies Co., Ltd.
发明人： FU, Yifan , GAO, Shan , ZHOU, Jiantong , XIAO, Jing
IPC分类号： H04N5/217 , H04N5/341
摘要： This application provides a pixel collection circuit, a dynamic vision sensor, and an image capture device. The pixel collection circuit includes an optical-to-electrical converter circuit, an analog-to-digital converter circuit, a differential circuit, and a comparison circuit. The optical-to-electrical converter circuit is configured to convert a collected optical signal into an analog signal. The analog-to-digital converter circuit is configured to: receive the analog signal from the optical-to-electrical converter circuit; and perform analog-to-digital conversion on the analog signal to obtain a digital signal. The differential circuit is configured to: receive the digital signal from the analog-to-digital converter circuit; and obtain a difference signal between a digital signal of a previous triggering moment and the digital signal of a current triggering moment. The previous triggering moment and the current triggering moment are determined by at least a digital clock signal. The comparison circuit is configured to receive the difference signal from the differential circuit, and output a pulse signal. In this application, a digital component is used to implement the pixel collection circuit in the dynamic vision sensor, so as to reduce noise, reduce interference, and facilitate debugging.

9. 发明公开

EP2750386A1 IMAGE CODING AND DECODING METHOD AND DEVICE 审中-公开
标题翻译：一种图像编码和解码方法和设备
公开(公告)号：EP2750386A1
公开(公告)日：2014-07-02
申请号：EP12846329.6
申请日：2012-11-05
申请人： Huawei Technologies Co., Ltd.
发明人： YANG, Haitao , ZHOU, Jiantong
IPC分类号： H04N7/26
CPC分类号： H04N19/61 , H04N19/126 , H04N19/136 , H04N19/176 , H04N19/463 , H04N19/91
摘要： An embodiment of the present invention provides an image coding method, where the coding method includes: performing predictive coding on an image; performing transform coding on the image on which the predictive coding has been performed; performing, by using a quantization matrix, quantization coding on the image on which the transform coding has been performed, where the quantization matrix is a matrix reflecting image quantization step information, the quantization matrix includes an M*N quantization matrix and an N*M quantization matrix, and the N*M quantization matrix is obtained by transposing the M*N quantization matrix; and performing entropy coding on the image on which the quantization coding has been performed, and coding the M*N quantization matrix, so as to generate a code stream. In the present invention, the number of bits required for coding a quantization matrix is effectively saved, thereby improving compression efficiency.

10. 发明授权

EP2091258B1 AN ENCODING/DECODING METHOD AND DEVICE, A FRACTIONAL PIXEL INTERPOLATION PROCESSING METHOD AND DEVICE 有权
标题翻译：方法和设备编码/解码，并支持INTEROLATION分数像素的方法和装置
公开(公告)号：EP2091258B1
公开(公告)日：2011-11-09
申请号：EP07855683.4
申请日：2007-12-13
申请人： Huawei Technologies Co., Ltd.
发明人： ZHOU, Jiantong , HU, Changqi , XIE, Qingpeng , LIN, Sixin , ZENG, Pengxin , XIONG, Lianhuan
IPC分类号： H04N7/32 , H04N7/26 , H04N7/50
CPC分类号： G06T3/4007 , H04N19/105 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/192 , H04N19/51 , H04N19/523 , H04N19/61
摘要： An inter-frame predicting encoding method, a decoding method, an encoding device, a decoding device, and a fractional pixel interpolation processing method and device. In view of the effect of the distributing direction of an image texture on the precision of the fractional pixel reference samples, the inter-frame predicting encoding/decoding technology according to the present invention performs a fractional pixel interpolation on the integer pixel samples of an image block to be encoded many times to obtain a plurality of groups of the fractional pixel reference samples with different precision, then selects the reference samples with the highest precision from the integer pixel samples and each group of the fractional pixel reference samples, so the encoding rate of the encoding side is increased. The fractional pixel interpolation technology according to the present invention sets up at least two different interpolation directions and calculates the corresponding predicting values, then selects the best value from all of the predicting values as the best predicting value of the fractional pixel samples to be interpolate, so the precision of the fractional pixel samples is increased.

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