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1. 发明申请

WO2017209961A1 MOTION-COMPENSATED COMPRESSION OF DYNAMIC VOXELIZED POINT CLOUDS 审中-公开
标题翻译：动态VOXELIZED点云的运动补偿压缩
公开(公告)号：WO2017209961A1
公开(公告)日：2017-12-07
申请号：PCT/US2017/033207
申请日：2017-05-18
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： CHOU, Philip A. , DE QUEIROZ, Ricardo L.
IPC分类号： G06T9/00 , H04N19/597 , H04N19/50 , H04N19/176 , H04N19/147 , H04N19/107 , H04N19/19 , H04N19/86
CPC分类号： H04N19/597 , G06T9/001 , G06T9/004 , H04N19/107 , H04N19/119 , H04N19/147 , H04N19/15 , H04N19/176 , H04N19/19 , H04N19/43 , H04N19/50 , H04N19/521 , H04N19/82 , H04N19/86 , H04N19/89
摘要： Disclosed herein are exemplary embodiments of innovations in the area of point cloud encoding and decoding. Example embodiments can reduce the computational complexity and/or computational resource usage during 3D video encoding by selectively encoding one or more 3D-point-cloud blocks using an inter-frame coding (e.g., motion compensation) technique that allows for previously encoded/decoded frames to be used in predicting current frames being encoded. Alternatively, one or more 3D-point-cloud block can be encoded using an intra-frame encoding approach. The selection of which encoding mode to use can be based, for example, on a threshold that is evaluated relative to rate-distortion performance for both intra-frame and inter-frame encoding. Still further, embodiments of the disclosed technology can use one or more voxel-distortion-correction filters to correct distortion errors that may occur during voxel compression. Such filters are uniquely adapted for the particular challenges presented when compressing 3D image data. Corresponding decoding techniques are also disclosed.
摘要翻译：这里公开了点云编码和解码领域中的创新的示例性实施例。示例实施例可以通过使用帧间编码（例如，运动补偿）技术来选择性地编码一个或多个3D点云块来减少3D视频编码期间的计算复杂度和/或计算资源使用，该帧间编码允许先前编码/解码的帧用于预测正在编码的当前帧。或者，可以使用帧内编码方法来编码一个或多个3D点云块。选择使用哪种编码模式可以基于例如相对于帧内和帧间编码两者的速率失真性能而评估的阈值。另外，所公开的技术的实施例可以使用一个或多个体素失真校正滤波器来校正在体素压缩期间可能发生的失真误差。这些滤镜适用于压缩3D图像数据时出现的特殊挑战。还公开了相应的解码技术。

2. 发明申请

WO2017048345A1 TRANSFORM SELECTION FOR NON-BASEBAND SIGNAL CODING 审中-公开
标题翻译：非基带信号编码的变换选择
公开(公告)号：WO2017048345A1
公开(公告)日：2017-03-23
申请号：PCT/US2016/040186
申请日：2016-06-29
申请人： GOOGLE INC.
发明人： HAN, Jingning , XU, Yaowu , CHEN, Cheng
IPC分类号： H04N19/176 , H04N19/147 , H04N19/60 , H04N19/112
CPC分类号： H04N19/159 , H04N19/112 , H04N19/124 , H04N19/147 , H04N19/176 , H04N19/593 , H04N19/60 , H04N19/61 , H04N19/625 , H04N19/89 , H04N19/91
摘要： Blocks of a frame of a non-baseband video signal are encoded by selecting between a staircase- or sinusoidal-based transform. For each prediction mode, a prediction block for encoding a current block is generated, a residual block is generated, the residual block is transformed using a sinusoidal-based transform and using a staircase-based transform, and first and second rate-distortion value for encoding the residual block using the sinusoidal-based transform and staircase-based transform are respectively generated. The transform for encoding the residual block is selected based on a lowest value of the first rate-distortion value and the second rate-distortion value among results for each prediction mode, and the current block is encoded using the selected transform. Improved appearance for blocks having sharp edges can be achieved and lossless encoding is possible using the staircase-based transform.
摘要翻译：通过在基于阶梯或正弦曲线的变换之间进行选择来编码非基带视频信号的帧的块。对于每个预测模式，生成用于对当前块进行编码的预测块，生成残余块，使用基于正弦的变换并使用基于阶梯的变换来变换残差块，并且使用第一和第二速率失真值分别使用基于正弦的变换和基于阶梯的变换对残差块进行编码。基于每个预测模式的结果中的第一速率失真值和第二速率失真值的最低值来选择用于编码残差块的变换，并且使用所选择的变换对当前块进行编码。可以实现具有锋利边缘的块的改进的外观，并且可以使用基于阶梯的变换来进行无损编码。

3. 发明申请

WO2016034664A1 REPLACING VIDEO FRAMES IN A TRANSPORT STREAM 审中-公开
标题翻译：在运输流程中更换视频框架
公开(公告)号：WO2016034664A1
公开(公告)日：2016-03-10
申请号：PCT/EP2015/070119
申请日：2015-09-03
申请人： VIGOR SYSTEMS INC. , SÖRLANDER, Magnus , KOKASKA, Frederick , OSSAAR, Janno
发明人： SÖRLANDER, Magnus , KOKASKA, Frederick , OSSAAR, Janno
IPC分类号： H04N21/234 , H04N21/2343 , H04N21/236 , H04N21/2365 , H04N21/2187
CPC分类号： H04N19/89 , H04N19/68 , H04N19/88 , H04N21/2187 , H04N21/23424 , H04N21/234354 , H04N21/23439 , H04N21/23608 , H04N21/2365
摘要： It is presented a splicing device for replacing video frames in a transport stream. The splicing device comprises a processor; and a memory storing instructions that, when executed by the processor, causes the splicing device to: receive the transport stream comprising frames of a first program stream and frames of a second program stream, and replace at least one of the frames of the second program stream with frames of a replacement program stored in a storage encoded at a plurality of different bit rates, wherein the frames of the replacement program are selected of from the plurality of different bit rates to comply with a maximum bandwidth of the transport stream.
摘要翻译：它呈现了用于替换传输流中的视频帧的拼接装置。拼接装置包括处理器; 以及存储器，其存储指令，所述指令在由所述处理器执行时使所述拼接装置：接收包括第一节目流的帧和第二节目流的帧的传输流，并且替换所述第二节目的至少一个帧存储在以多个不同比特率编码的存储器中的替换程序的帧的流，其中从多个不同比特率中选择替换程序的帧以符合传输流的最大带宽。

4. 发明申请

WO2015174893A1 METHODS, DECODER AND ENCODER FOR SELECTION OF REFERENCE PICTURES TO BE USED DURING ENCODING 审中-公开
标题翻译：用于选择编码期间使用的参考图像的方法，解码器和编码器
公开(公告)号：WO2015174893A1
公开(公告)日：2015-11-19
申请号：PCT/SE2014/050580
申请日：2014-05-13
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： SAMUELSSON, Jonatan , WESTERLUND, Magnus
IPC分类号： H04N19/583 , H04N19/89 , H04N19/166 , H04N19/105 , H04N19/172
CPC分类号： H04N19/44 , H04N19/105 , H04N19/166 , H04N19/172 , H04N19/423 , H04N19/58 , H04N19/70 , H04N19/89
摘要： A method and an encoder (110) for selecting zero or more reference picture to be used when encoding one or more pictures into a Coded Video Sequence, "CVS" as well as a method and a decoder (120) for supporting the selection by the encoder (110)are disclosed. The encoder (110) encodes(201) pictures into the CVS. Furthermore, the encoder (110) sends (202) a picture of the CVS to a decoder (120), which determines (204) an indication indicative of an error in the picture. Next, the decoder (120) sends (212), to the encoder (110), a feedback message for supporting selection, by the encoder (110), of zero or more reference pictures to be used by the encoder (110) when encoding one or more pictures to create the CVS, wherein the feedback message comprises information relating to the indication. When the encoder (110) has received the feedback message, it encodes (214) pictures into the CVS based on the information relating to the indication while using zero or more reference pictures indicated by the identities of the reference pictures. Computer programs and carriers therefor are disclosed.
摘要翻译：一种用于在将一个或多个图像编码为编码视频序列“CVS”时选择要使用的零个或多个参考图像的方法和编码器（110）以及用于支持所选择的方法和解码器（120）编码器（110）。编码器（110）将（201）图像编码到CVS中。此外，编码器（110）向解码器（120）发送（202）CVS的图像，确定（204）指示图像中的错误的指示。接下来，解码器（120）向编码器（110）发送用于支持由编码器（110）选择由编码器（110）在编码时使用的零个或更多个参考图片的反馈消息（212）用于创建CVS的一个或多个图片，其中所述反馈消息包括与所述指示相关的信息。当编码器（110）已经接收到反馈消息时，在使用由参考图像的标识指示的零个或更多个参考图片的同时，基于与指示相关的信息，将图像编码（214）到CVS中。公开了计算机程序和运营商。

5. 发明申请

WO2015153237A1 DECODING AND SYNTHESIZING FRAMES FOR INCOMPLETE VIDEO DATA 审中-公开
标题翻译：解码和合成不完整视频数据的框架
公开(公告)号：WO2015153237A1
公开(公告)日：2015-10-08
申请号：PCT/US2015/022599
申请日：2015-03-26
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： CALLAHAN, Sean
IPC分类号： H04N19/174 , H04N19/44 , H04N19/65 , H04N19/89 , H04N19/895
CPC分类号： G09G5/393 , A63F13/31 , G09G2360/127 , H04N19/174 , H04N19/42 , H04N19/44 , H04N19/65 , H04N19/89 , H04N19/895
摘要： Embodiments are directed to decoding incomplete video data. In one scenario, a computer system receives a piece of a frame (e.g. a video frame). The frame includes multiple frame pieces, where each frame piece is encoded so as to be individually decodable. The computer system decodes the received frame pieces while waiting for at least one additional frame piece to be received. Then, when a condition occurs indicating that the frame is incomplete, the computer system synthesizes frame pieces to replace the additional frame piece that has not yet been received.
摘要翻译：实施例涉及解码不完整的视频数据。在一种情况下，计算机系统接收一帧（例如视频帧）。该帧包括多个帧片段，其中每个帧片段被编码以便可单独地解码。计算机系统在等待要接收的至少一个附加帧片段的同时解码所接收的帧片段。然后，当指示帧不完整的条件发生时，计算机系统合成框架件以替换尚未被接收的附加帧片段。

6. 发明申请

WO2015007753A1 NETWORK DEVICE AND ERROR HANDLING 审中-公开
标题翻译：网络设备和错误处理
公开(公告)号：WO2015007753A1
公开(公告)日：2015-01-22
申请号：PCT/EP2014/065184
申请日：2014-07-15
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： SÜHRING, Karsten , SCHIERL, Thomas , MARPE, Detlev , SKUPIN, Robert , SÁNCHEZ DE LA FUENTE, Yago , TECH, Gerhard
IPC分类号： H04N19/30 , H04N19/70 , H04N19/65
CPC分类号： H04N19/30 , H04L69/324 , H04N19/119 , H04N19/166 , H04N19/174 , H04N19/187 , H04N19/33 , H04N19/423 , H04N19/44 , H04N19/50 , H04N19/593 , H04N19/65 , H04N19/66 , H04N19/70 , H04N19/85 , H04N19/89 , H04N19/91
摘要： A number of negatively affected (correctly received) packets due to packet loss is reduced by providing, and analyzing, error resilience in the packets of the sequence of packets and identifying, for each of runs of one or more lost packets of the sequence of packets, a first packet in the sequence of packets after the respective run of one or more lost packets, which carries a beginning of any of the tiles of the video data stream, and concurrently carries a slice, the slice header of which is contained in any of the packets of the sequence of packets not being lost. In particular, the side information overhead for transmitting the error resilience data is comparatively low compared to the reduction in negatively affected packets due to packet loss.
摘要翻译：通过提供和分析分组序列的分组中的错误弹性来减少由于分组丢失而导致的一些受负面影响（正确接收）的分组，并且对于分组序列的一个或多个丢失分组的每个运行，在一个或多个丢失分组的相应运行之后的分组序列中的第一分组，其携带视频数据流的任何瓦片的开始，并且同时传送片段，其片段包含在任何的数据包的数据包不丢失。具体地，与由于分组丢失引起的负面影响的分组的减少相比，用于发送错误恢复数据的侧面信息开销相对较低。

7. 发明申请

WO2014127608A1 视频静止失真程度评估方法和装置审中-公开
公开(公告)号：WO2014127608A1
公开(公告)日：2014-08-28
申请号：PCT/CN2013/080892
申请日：2013-08-06
申请人：华为技术有限公司
发明人：高山 , 孙李娜
IPC分类号： H04N7/26
CPC分类号： H04N17/004 , H04N5/145 , H04N5/38 , H04N19/00 , H04N19/89
摘要：本发明实施例提供了一种视频静止失真程度评估方法和装置。该方法包括：获取视频流的帧率以及静止事件的静止特征参数，所述静止事件的静止特征参数与所述视频流的静止事件的时长相关，其中，所述静止事件用于表征所述视频流的停顿；根据所述视频流的帧率和静止特征参数，获取所述视频流的静止事件失真值，所述静止事件失真值用于表征所述视频流的失真程度。本发明实施例的视频静止失真程度评估方法和装置，更符合人眼主观感受，提高了失真程度评估的准确性。

8. 发明申请

WO2014111524A1 FORWARD ERROR CORRECTION USING SOURCE BLOCKS WITH SYMBOLS FROM AT LEAST TWO DATASTREAMS WITH SYNCHRONIZED START SYMBOL IDENTIFIERS AMONG THE DATASTREAMS 审中-公开
标题翻译：使用源块与来自具有同步启动符号标识符的最小二进制数的符号进行前向纠错校正
公开(公告)号：WO2014111524A1
公开(公告)日：2014-07-24
申请号：PCT/EP2014/050906
申请日：2014-01-17
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： HELLGE, Cornelius , SCHIERL, Thomas , SANCHEZ, Yago , HENSEL, Manuel
IPC分类号： H04N19/39 , H04N19/70 , H04N21/2343 , H04N21/63 , H04N19/46 , H04N19/29 , H04L1/00
CPC分类号： H04N19/89 , H03M13/6522 , H04L1/004 , H04L1/0086 , H04L7/0008 , H04N19/29 , H04N19/39 , H04N19/46 , H04N19/70 , H04N21/234327 , H04N21/2383 , H04N21/4382 , H04N21/631
摘要： A forward error correction (FEC) data generator comprises an input for at least two datastreams for which FEC data shall be generated in a joint manner, each datastream comprising a plurality of symbols. A FEC data symbol is based on a FEC source block possibly comprising a subset of symbols of the at least two data streams. The FEC data generator further comprises a signaling information generator configured to generate signaling information for the FEC data symbol regarding which symbols within the at least two datastreams belong to the corresponding source block by determining pointers to start symbols within a first and a second datastream, respectively, of the at least two datastreams and a number of symbols within the first datastream and second datastreams, respectively, that belong to the corresponding source block.
摘要翻译：前向纠错（FEC）数据生成器包括用于至少两个数据流的输入，FEC数据将以联合方式生成，每个数据流包括多个符号。 FEC数据符号基于可能包括至少两个数据流的符号子集的FEC源块。 FEC数据生成器还包括信令信息发生器，其被配置为通过分别在第一和第二数据流内确定指向起始符号的指针来生成关于所述至少两个数据流中哪些符号属于相应源块的FEC数据符号的信令信息，以及分别属于相应源块的第一数据流和第二数据流内的多个符号。

9. 发明申请

WO2014098787A1 ROBUST DIGITAL CHANNELS 审中-公开
标题翻译：稳健的数字通道
公开(公告)号：WO2014098787A1
公开(公告)日：2014-06-26
申请号：PCT/US2012/070023
申请日：2012-12-17
申请人： THOMSON LICENSING , DEISS, Michael Scott , HAILEY, James Edwin
发明人： DEISS, Michael Scott , HAILEY, James Edwin
IPC分类号： H04N19/30 , H04L1/00 , H04N21/2343
CPC分类号： H04N21/631 , H04L1/0003 , H04L1/0009 , H04L1/007 , H04L1/0071 , H04N19/30 , H04N19/89 , H04N21/234327 , H04N21/2383 , H04N21/4384
摘要： Various implementations provide one or more of improved programming channel change time and/or overall quality of television reception by using multiple transmission channels. In one particular implementation, a first layer of a picture is encoded using a first level of error protection. The encoded first layer has a first decoding delay. A second layer of the picture is encoded using a second level of error protection. The encoded second layer has a second decoding delay. The second level of error protection is lower than the first level of error protection, and the second decoding delay is longer than the first decoding delay. Other implementations provide a signal or signal structure carrying the encoded first and second layers. Yet further implementations decode the encoded first and second layers.
摘要翻译：各种实现通过使用多个传输信道提供改进的节目频道改变时间和/或电视接收的整体质量中的一个或多个。在一个具体实现中，使用第一级错误保护对图像的第一层进行编码。编码的第一层具有第一解码延迟。图像的第二层使用第二级错误保护进行编码。编码的第二层具有第二解码延迟。第二级错误保护低于第一级错误保护，第二解码延迟比第一解码延迟要长。其它实施方案提供了承载编码的第一和第二层的信号或信号结构。另外的实施方案解码编码的第一和第二层。

10. 发明申请

WO2014049319A1 PERCEPTUALLY DRIVEN ERROR CORRECTION FOR VIDEO TRANSMISSION 审中-公开
标题翻译：明显地驱动视频传输的错误修正
公开(公告)号：WO2014049319A1
公开(公告)日：2014-04-03
申请号：PCT/GB2013/000409
申请日：2013-09-27
申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人： DAVIS, Andrew Gordon
IPC分类号： H04N7/26
CPC分类号： H04N19/89 , H04N19/115 , H04N19/117 , H04N19/154 , H04N19/157 , H04N19/174 , H04N19/188 , H04N19/67
摘要： The invention presents a method of applying forward error correction selectively to an encoded video sequence before it is transmitted. Forward error correction is targeted at portions of the video that will be most noticeably affected by any potential packet loss during transmission. The targeting is done using a perceptual error sensitivity model, which effectively maps an error visibility rating onto content-dependent and content-independent properties associated with a given portion video. The encoder and decoder settings will be used for the actual video sequence where forward error correction is to be applied are used in the training of the model, as they have a significant effect on the perception of any errors. Then, to adaptively apply forward error correction, a selected video sequence is encoded, and the encoded bitstream is analysed to determine content-independent properties. A decoded version of the video sequence is also analysed to determine content-dependent properties being determined. The content-independent and content-dependent properties are used in conjunction with the perceptual error sensitivity model to predict which slices of the video sequence will be most significantly affected perceptually by packet loss, and thus target FEC to those areas accordingly.
摘要翻译：本发明提供一种在被发送之前对编码视频序列选择性地应用前向纠错的方法。前向纠错是针对视频的部分，在传输过程中任何潜在的数据包丢失将最为显着的影响。使用感知错误敏感性模型完成定位，这可以将错误可见性评级有效地映射到与给定部分视频相关联的依赖于内容和与内容无关的属性。编码器和解码器设置将用于实际的视频序列，其中应用前向纠错是用于训练模型，因为它们对任何错误的感知具有显着影响。然后，为了自适应地应用前向纠错，对所选择的视频序列进行编码，分析编码比特流以确定与内容无关的属性。还分析视频序列的解码版本，以确定正在确定的内容相关属性。与内容无关和依赖内容的属性与感知错误灵敏度模型结合使用，以预测视频序列的哪些片段将受到包丢失感知最大程度的影响，从而相应地将这些区域对准FEC。

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