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

EP3117607A1 IMPROVED SCREEN CONTENT AND MIXED CONTENT CODING 审中-公开
标题翻译：改进的编码视频内容和混合内容
公开(公告)号：EP3117607A1
公开(公告)日：2017-01-18
申请号：EP15761574.1
申请日：2015-03-12
申请人： Huawei Technologies Co., Ltd.
发明人： LAUDE, Thorsten , MUNDERLOH, Marco , OSTERMANN, Joern
IPC分类号： H04N19/00 , H04N19/167 , H04N19/124 , H04N19/17
CPC分类号： G06T9/00 , H04N19/103 , H04N19/124 , H04N19/167 , H04N19/17 , H04N19/46
摘要： An apparatus comprising a processor configured to obtain mixed content video comprising images comprising computer generated screen content (SC) and natural content (NC), partition the images into SC areas and NC areas, and encode the images by encoding the SC areas with SC coding tools and encoding the NC areas with NC coding tools, and a transmitter coupled to the processor, wherein the transmitter is configured to transmit data to a client device, the data comprising the encoded images and an indication of boundaries of the partition.

2. 发明公开

EP3718306A1 CLUSTER REFINEMENT FOR TEXTURE SYNTHESIS IN VIDEO CODING 有权
公开(公告)号：EP3718306A1
公开(公告)日：2020-10-07
申请号：EP18712225.4
申请日：2018-03-23
申请人： Huawei Technologies Co., Ltd.
发明人： ZHAO, Zhijie , WANDT, Bastian , LIU, Yiqun , LAUDE, Thorsten , OSTERMANN, Joern , ROSENHAHN, Bodo
IPC分类号： H04N19/48 , H04N19/61 , H04N19/85 , H04N19/90 , H04N19/103 , H04N19/136 , H04N19/17 , H04N19/167 , H04N19/463

3. 发明公开

EP3335425A1 VECTOR QUANTIZATION FOR VIDEO CODING USING CODEBOOK GENERATED BY SELECTED TRAINING SIGNALS 有权
公开(公告)号：EP3335425A1
公开(公告)日：2018-06-20
申请号：EP16703089.9
申请日：2016-02-01
申请人： Huawei Technologies Co., Ltd. , Gottfried Wilhelm Leibniz Universität Hannover
发明人： ZHAO, Zhijie , JIANTONG, Zhou , LIU, Yiqun , OSTERMANN, Joern
IPC分类号： H04N19/94 , H04N19/176 , H04N19/107 , H04N19/146 , G06T9/00
CPC分类号： H04N19/124 , H04N19/107 , H04N19/146 , H04N19/176 , H04N19/50 , H04N19/91 , H04N19/94
摘要： An encoder for obtaining training signals and to train a codebook for vector quantization of a video sequence of subsequent frames is provided, each frame being subdivided into coding blocks. The encoder comprises a scalar quantization unit configured to obtain, for each coding block of one or more training frames of the video sequence, a scalar quantized signal from a prediction error, an entropy coding unit configured to entropy code, for each coding block of each training frame, the scalar quantized signal into an output signal, a data selection unit configured to select, from among the training frames, one or several coding blocks depending on a cost function of their respective output signal, and to obtain, for each selected coding block, a training signal derived from the prediction error of the selected coding block and configured to train the codebook for vector quantization of the video sequence.

4. 发明公开

EP3103259A1 IMPROVED METHOD FOR SCREEN CONTENT CODING 审中-公开
标题翻译： VERBESSERTES VERFAHREN ZUR CODIERUNG VON BILDSCHIRMINHALTEN
公开(公告)号：EP3103259A1
公开(公告)日：2016-12-14
申请号：EP15761749.9
申请日：2015-03-13
申请人： Huawei Technologies Co., Ltd
发明人： LAUDE, Thorsten , OSTERMANN, Joern , MUNDERLOH, Marco , YU, Haoping
IPC分类号： H04N7/12
CPC分类号： H04N19/543 , H04N19/132 , H04N19/137 , H04N19/176 , H04N19/46 , H04N19/93
摘要： Coding of screen content includes identifying corresponding areas in one or more previously coded frames to code unchanged areas in current frames. An unchanged area in a current frame is coded by copying a corresponding area from a previously coded frame or several previously coded frames. Usage of a copy mode to be applied to the unchanged areas is signaled in an encoding bitstream. The copy mode can be signaled for each unchanged area or a single copy mode is signaled for a group of unchanged areas. The copy mode can be automatically applied to one or more unchanged areas contiguous to the group of unchanged areas without further signaling the copy mode. Copying the corresponding area from the previously coded frame includes copying palette entries from the previously coded frame. Palette entries copied from the previously coded frame are reordered according to frequency of appearance.
摘要翻译：屏幕内容的编码包括识别一个或多个先前编码的帧中的相应区域，以对当前帧中的不变区进行编码。通过从先前编码的帧或几个先前编码的帧复制相应的区域来对当前帧中的不变区进行编码。将复制模式应用到不变区域的使用在编码比特流中被通知。可以针对每个不变的区域发信号通知复制模式，或者为一组不变的区域发信号通知一个复制模式。复制模式可以自动地应用于与该组不变区域相邻的一个或多个不变区域，而不进一步发信号通知复制模式。从先前编码的帧复制相应的区域包括从先前编码的帧复制调色板条目。从先前编码的帧复制的调色板条目根据外观的频率重新排序。

5. 发明公开

EP3545679A1 APPARATUS AND METHOD FOR ENCODING AN IMAGE 有权
公开(公告)号：EP3545679A1
公开(公告)日：2019-10-02
申请号：EP16805816.2
申请日：2016-12-02
申请人： Huawei Technologies Co., Ltd.
发明人： ZHAO, Zhijie , LAUDE, Thorsten , MUNDERLOH, Marco , OSTERMANN, Joern
IPC分类号： H04N19/176 , H04N19/11 , H04N19/136 , H04N19/14

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