公开(公告)号：EP2908518A1

公开(公告)日：2015-08-19

申请号：EP13781163.4

申请日：2013-04-24

申请人： Zhejiang University ,  ZTE Corporation

发明人： YU, Lu ,  LV, Peng ,  ZHAO, Yin ,  HONG, Yingjie ,  LI, Ming

IPC分类号： H04N13/00 ,  H04N7/26

CPC分类号： H04N19/70 ,  H04N13/161 ,  H04N19/174 ,  H04N19/18 ,  H04N19/463

摘要： Methods and devices for encoding/decoding a video bitstream are provided. The decoding method includes: a slice bitstream is received, wherein the slice bitstream carries parameter set indication information for indicating a camera parameter set; the camera parameters are acquired from the camera parameter set indicated by the parameter set indication information; and the slice bitstream is decoded according to the acquired camera parameters. By the present invention, the technical problem of lower encoding/decoding efficiency caused by the fact that encoding/decoding can only be normally implemented by carrying the camera parameters in the slice bitstream in the conventional art is solved, and the technical effect of improving the encoding/decoding efficiency is achieved.

摘要翻译： 提供了用于编码/解码视频比特流的方法和设备。 所述解码方法包括：接收切片比特流，其中所述切片比特流携带用于指示相机参数集合的参数集合指示信息; 从参数集指示信息指示的摄像机参数集中获取摄像机参数; 根据获取的摄像机参数对切片比特流进行解码。 通过本发明，解决了现有技术中只能通过在切片比特流中携带摄像机参数才能正常实现编码/解码的事实导致编码/解码效率较低的技术问题， 编码/解码效率得以实现。

公开(公告)号：EP3657801A1

公开(公告)日：2020-05-27

申请号：EP20150275.4

申请日：2013-04-24

申请人： Zhejiang University ,  ZTE Corporation

发明人： YU, Lu ,  LV, Peng ,  ZHAO, Yin ,  HONG, Yingjie ,  LI, Ming

IPC分类号： H04N19/70 ,  H04N19/597 ,  H04N19/463 ,  H04N13/161

摘要： Methods and devices for encoding/decoding a video bitstream are provided. The decoding method includes: a slice bitstream is received, wherein the slice bitstream carries parameter set indication information for indicating a camera parameter set; the camera parameters are acquired from the camera parameter set indicated by the parameter set indication information; and the slice bitstream is decoded according to the acquired camera parameters. By the present invention, the technical problem of lower encoding/decoding efficiency caused by the fact that encoding/decoding can only be normally implemented by carrying the camera parameters in the slice bitstream in the conventional art is solved, and the technical effect of improving the encoding/decoding efficiency is achieved.

公开(公告)号：EP2843942A1

公开(公告)日：2015-03-04

申请号：EP13781675.7

申请日：2013-04-24

申请人： Zhejiang University ,  ZTE Corporation

发明人： ZHAO, Yin ,  YU, Lu ,  HONG, Yingjie ,  LI, Ming

IPC分类号： H04N7/24 ,  H04N13/00

CPC分类号： H04N13/161 ,  H04N13/111 ,  H04N13/172 ,  H04N13/178 ,  H04N21/2353 ,  H04N21/2362 ,  H04N21/4345 ,  H04N21/816

摘要： Provided are a method and device for decoding and encoding supplemental auxiliary information of a three-dimensional video sequence. The method includes: obtaining supplemental auxiliary information for constructing a stereo-pair from a three-dimensional video sequence bitstream, the supplemental auxiliary information being used for indicating that the stereo-pair is constructed from a reconstructed three-dimensional video sequence, and the reconstructed three-dimensional video sequence being obtained by decoding the three-dimensional video sequence bitstream. The present invention solves the technical problem in the prior art that degraded displaying quality of a constructed stereo-pair appears because of the lack of supplemental auxiliary information in a three-dimensional video sequence bitstream, and achieves the technical effect of improving the display quality of a constructed stereoscopic video.

摘要翻译： 提供了用于解码和编码的三维视频序列的补充辅助信息的方法和装置。 该方法包括：获得补充的辅助信息用于从三维视频序列的位流构成一对立体声，所使用的补充辅助信息用于指示所做的立体对由重构三维视频序列构成，重构 三维视频序列由三维视频序列比特流进行解码而得到的。 本发明解决了现有技术中的技术问题并降低显示构造的立体对的质量显示由于缺乏在三维视频序列的比特流的补充辅助信息，并实现改善的显示质量的技术效果 构建立体视频。

公开(公告)号：EP2903283A1

公开(公告)日：2015-08-05

申请号：EP13841502.1

申请日：2013-09-06

申请人： ZTE Corporation ,  Zhejiang University

发明人： YU, Lu ,  ZHANG, Yichen ,  ZHAO, Yin ,  HONG, Yingjie ,  LI, Ming

IPC分类号： H04N19/50

CPC分类号： H04N19/583 ,  H04N19/105 ,  H04N19/157 ,  H04N19/167 ,  H04N19/176 ,  H04N19/52 ,  H04N19/597

摘要： Disclosed are a method and device for generating a predicted picture, the method comprising: determining a reference rectangular block of pixels according to parameter information which includes a location of a target rectangular block of pixels and/or depth information of a reference view; mapping the reference rectangular block of pixels to a target view according to the depth information of the reference view to obtain a projection rectangular block of pixels; and acquiring a predicted picture block from the projection rectangular block of pixels. The technical problem of relatively large dependence among the data brought by simultaneously employing the depth picture of the target view and the depth picture of the reference view in the process of generating the predicted picture in the prior art is solved, and the technical effects of reducing the dependence on the data and improving the encoding and decoding efficiency is achieved.

摘要翻译： 公开了一种用于生成预测图片的方法和设备，所述方法包括：根据参数信息确定参考矩形像素块，所述参数信息包括目标矩形像素块的位置和/或参考视图的深度信息; 根据所述参考视图的深度信息将所述参考矩形像素块映射到目标视图，得到投影矩形块像素; 并从投影矩形像素块中获取预测图像块。 解决了现有技术在生成预测图片的过程中同时采用目标视图的深度图片和参考视图的深度图片所带来的数据依赖性较大的技术问题， 实现了对数据的依赖并提高了编码和解码效率。

公开(公告)号：EP3358845A1

公开(公告)日：2018-08-08

申请号：EP18158676.9

申请日：2013-04-24

申请人： Zhejiang University ,  ZTE Corporation

发明人： ZHAO, Yin ,  YU, Lu ,  HONG, Yingjie ,  LI, Ming

IPC分类号： H04N13/111 ,  H04N13/00 ,  H04N21/2362 ,  H04N21/434 ,  H04N21/81 ,  H04N13/161 ,  H04N13/172 ,  H04N13/178 ,  H04N21/235

CPC分类号： H04N13/161 ,  H04N13/111 ,  H04N13/172 ,  H04N13/178 ,  H04N21/2353 ,  H04N21/2362 ,  H04N21/4345 ,  H04N21/816

摘要： Provided are a method and device for decoding and encoding supplemental auxiliary information of a three-dimensional video sequence. The method includes: obtaining supplemental auxiliary information for constructing a stereo-pair from a three-dimensional video sequence bitstream, the supplemental auxiliary information being used for indicating that the stereo-pair is constructed from a reconstructed three-dimensional video sequence, and the reconstructed three-dimensional video sequence being obtained by decoding the three-dimensional video sequence bitstream. The present invention solves the technical problem in the prior art that degraded displaying quality of a constructed stereo-pair appears because of the lack of supplemental auxiliary information in a three-dimensional video sequence bitstream, and achieves the technical effect of improving the display quality of a constructed stereoscopic video.

公开(公告)号：EP4411643A1

公开(公告)日：2024-08-07

申请号：EP21958998.3

申请日：2021-09-30

申请人： Zhejiang University ,  GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

发明人： YU, Lu ,  LI, Sicheng ,  WANG, Chuchu ,  DAI, Zhenyu

IPC分类号： G06T9/00 ,  H04N19/105 ,  G06T15/04

CPC分类号： H04N19/105 ,  G06T15/04 ,  G06T9/00

摘要： Embodiments of the present application provide encoding and decoding methods, an encoder, a decoder, and a storage medium. The decoding method comprises: a decoder decodes a code stream, and determines a first indication parameter; when the first indication parameter indicates that a sub-block image unit that does not comprise geometric information exists, a second indication parameter corresponding to the sub-block image unit is determined; and when the second indication parameter indicates that the sub-block image unit does not comprise geometric information, reconstruction processing is performed according to texture information corresponding to the sub-block image unit.

公开(公告)号：EP4387233A1

公开(公告)日：2024-06-19

申请号：EP21958999.1

申请日：2021-09-30

申请人： Zhejiang University ,  GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

发明人： YU, Lu ,  JIA, Ke ,  HE, Qiqi ,  WANG, Dong

IPC分类号： H04N19/85 ,  G06T7/00 ,  G06N3/08

CPC分类号： G06T7/00 ,  G06N3/08 ,  H04N19/85

摘要： The present application provides a video encoding and decoding method, an encoder, a decoder, and a storage medium. The video encoding method comprises: inputting a feature code stream of a current image into a decoding network to obtain first feature information outputted by an ith intermediate layer of the decoding network, i being a positive integer; and inputting the first feature information into a jth intermediate layer of a task analysis network to obtain a task analysis result outputted by the task analysis network, j being a positive integer. In the present application, the feature information outputted by the intermediate layer of the decoding network is inputted into the task analysis network, so that the task analysis network performs task analysis on the basis of the feature information outputted by the decoding network, which saves time and computing resources occupied by task analysis and improves the efficiency of task analysis.

公开(公告)号：EP3780607A1

公开(公告)日：2021-02-17

申请号：EP19784894.8

申请日：2019-04-15

申请人： Zhejiang University

发明人： YU, Lu ,  HE, Zhichu

IPC分类号： H04N19/13 ,  H03M7/30

摘要： The invention provides an information preserving coding method based on possibility distribution of value of a sample. The possibility distribution of value of a sample refers to evaluation of the possibility of various values of the sample. The information preserving coding method provided is more in line with the non-stationary probability property of an actual source, and a coding code length is the overhead caused by a prediction error of the possibility distribution of value of the sample. The invention further provides multiple coding methods based on possibility distribution of value of a sample. Through improving the prediction accuracy of the possibility distribution of value of the sample, the coding efficiency is greatly improved.

公开(公告)号：EP2214415B1

公开(公告)日：2018-06-27

申请号：EP08841973.4

申请日：2008-10-14

申请人： Zhejiang University

发明人： YU, Lu ,  CHEN, Sijia ,  WANG, Jianpeng

IPC分类号： H04N7/00 ,  H04N11/04

CPC分类号： H04N19/105 ,  H04N19/172 ,  H04N19/194 ,  H04N19/61

摘要： A method and apparatus for second order prediction are provided. In the decoding method, the reconstruction of decoded picture comprises second order prediction and compensation and second prediction storage. The second order prediction and compensation comprises first prediction and compensation and second prediction and compensation, input of which includes reconstructed first order residue and second order residue. The encoding method comprises second order prediction and second prediction storage. Second order prediction consists of first prediction and second prediction, input of which includes reconstructed first order residue and second order residue, and it will generate bit-stream accordingly. This invention will eliminate redundancy using second order prediction encoding and decoding method, so that coding efficiency will be improved.

公开(公告)号：EP3142361A1

公开(公告)日：2017-03-15

申请号：EP15789854.5

申请日：2015-04-30

申请人： Zhejiang University

发明人： YU, Lu ,  HONG, Wenhao

IPC分类号： H04N13/00

CPC分类号： H04N13/122 ,  H04N13/32

摘要： Disclosed are a method and device for generating a visual special effect image or video pair. The method mainly comprises: at least modifying the brightness of at least one region of an image or video of at least one view, so that the polarity of brightness contrast between the region and its perimeter regions in the view is opposite to the polarity of brightness contrast between a corresponding region and its perimeter regions in the other view, and the absolute value of the difference between the brightness contrast between the region and its perimeter regions in the view and the brightness contrast between a corresponding region and its perimeter regions in the other view is greater than a critical value; and obtaining a new image or video pair. When the obtained image or video pair is viewed separately by two eyes, a fluctuating lustre sensation appears in the region after processing. The present invention can add a special visual effect for content viewed in a stereoscopic display mode.

摘要翻译： 公开了一种用于产生视觉特效图像或视频对的方法和装置。 该方法主要包括：至少修改至少一个视图的图像或视频的至少一个区域的亮度，使得该视野中的区域与其周边区域之间的亮度对比度的极性与亮度的极性相反 在另一视图中的对应区域与其周边区域之间的对比度以及视野中的区域与其周边区域之间的亮度对比度之间的差异的绝对值以及对应区域与其周边区域之间的亮度对比度 视图大于临界值; 并获得新的图像或视频对。 当所获得的图像或视频对由两只眼分开观看时，处理后该区域出现波动的光泽感。 本发明可以为在立体显示模式下观看的内容增加特殊的视觉效果。