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1. 发明申请

US20100220791A1 Video coding and decoding method and codex based on motion skip mode 审中-公开
标题翻译：视频编码和解码方法和基于运动跳过模式的代码
公开(公告)号：US20100220791A1
公开(公告)日：2010-09-02
申请号：US12761200
申请日：2010-04-15
申请人： Sixin Lin , Haitao Yang , Yilin Chang , Junyan Huo , Shan Gao , Lianhuan Xiong
发明人： Sixin Lin , Haitao Yang , Yilin Chang , Junyan Huo , Shan Gao , Lianhuan Xiong
IPC分类号： H04N7/12
CPC分类号： H04N19/132 , H04N19/176 , H04N19/46 , H04N19/513 , H04N19/597 , H04N19/61 , H04N19/70
摘要： A video coding method based on a motion skip mode (MSM) is provided. The method includes the following steps. A corresponding reference block of a current macro block to be encoded in a view-point reference image is determined, according to a direction of a disparity vector from a current image relative to the view-point reference image deduced by using a block smaller than 16×16 pixels as a base unit. The current macro block to be encoded is then encoded according to motion information of a macro block that the determined corresponding reference block belongs to. Other related video coding methods and corresponding codecs based on the MSM are also provided. Therefore, macro block motion information (MMI) of the currently encoded macro block at a corresponding position in the view-point reference image can be more accurately obtained, thereby improving a coding efficiency of the MSM.
摘要翻译：提供了基于运动跳过模式（MSM）的视频编码方法。该方法包括以下步骤。根据来自当前图像的视差向量相对于通过使用小于16的块推导的视点参考图像的视差矢量的方向，确定要在视点参考图像中编码的当前宏块的相应参考块 ×16像素为基本单位。然后根据所确定的相应参考块所属的宏块的运动信息对要编码的当前宏块进行编码。还提供了基于MSM的其他相关视频编码方法和相应的编解码器。因此，可以更准确地获得在视点参考图像中的对应位置处的当前编码宏块的宏块运动信息（MMI），从而提高MSM的编码效率。

2. 发明授权

US09324147B2 Method and apparatus for computing a parallax 有权
标题翻译：用于计算视差的方法和装置
公开(公告)号：US09324147B2
公开(公告)日：2016-04-26
申请号：US13188322
申请日：2011-07-21
申请人： Sixin Lin , Hui Yuan , Yilin Chang , Haitao Yang , Xiaoxian Liu , Junyan Huo , Fuzheng Yang
发明人： Sixin Lin , Hui Yuan , Yilin Chang , Haitao Yang , Xiaoxian Liu , Junyan Huo , Fuzheng Yang
IPC分类号： H04N13/00 , G06T7/00
CPC分类号： G06T7/0022 , G06T7/55 , G06T7/97
摘要： A method and an apparatus for computing a parallax are provided. The method includes: obtaining a plurality of views of a pixel point; computing gradients in a plurality of directions of the pixel point in the plurality of view; computing a matching error corresponding to a parallax of the pixel point according to the gradients; and computing the parallax of the current pixel point according to the matching error. Through the method and the apparatus for computing a parallax, the accuracy of parallax estimation is increased.
摘要翻译：提供了一种用于计算视差的方法和装置。该方法包括：获得像素点的多个视图; 在所述多个视图中的像素点的多个方向上计算渐变; 根据梯度计算与像素点的视差对应的匹配误差; 并根据匹配误差计算当前像素点的视差。通过用于计算视差的方法和装置，增加了视差估计的精度。

3. 发明申请

US20110273537A1 METHOD AND APPARATUS FOR COMPUTING A PARALLAX 有权
标题翻译：用于计算PARALLAX的方法和装置
公开(公告)号：US20110273537A1
公开(公告)日：2011-11-10
申请号：US13188322
申请日：2011-07-21
申请人： Sixin Lin , Hui Yuan , Yilin Chang , Haitao Yang , Xiaoxian Liu , Junyan Huo , Fuzheng Yang
发明人： Sixin Lin , Hui Yuan , Yilin Chang , Haitao Yang , Xiaoxian Liu , Junyan Huo , Fuzheng Yang
IPC分类号： H04N13/00
CPC分类号： G06T7/0022 , G06T7/55 , G06T7/97
摘要： A method and an apparatus for computing a parallax are provided. The method includes: obtaining a plurality of views of a pixel point; computing gradients in a plurality of directions of the pixel point in the plurality of view; computing a matching error corresponding to a parallax of the pixel point according to the gradients; and computing the parallax of the current pixel point according to the matching error. Through the method and the apparatus for computing a parallax, the accuracy of parallax estimation is increased.
摘要翻译：提供了一种用于计算视差的方法和装置。该方法包括：获得像素点的多个视图; 在所述多个视图中的像素点的多个方向上计算渐变; 根据梯度计算与像素点的视差对应的匹配误差; 并根据匹配误差计算当前像素点的视差。通过用于计算视差的方法和装置，增加了视差估计的精度。

4. 发明申请

US20090245392A1 METHOD AND SYSTEM FOR CONCEALING ERRORS 审中-公开
标题翻译：用于保证错误的方法和系统
公开(公告)号：US20090245392A1
公开(公告)日：2009-10-01
申请号：US12483454
申请日：2009-06-12
申请人： Raymond W.K. Leung , Jun Yao , Yanzhou Ma , Yilin Chang , Junyan Huo
发明人： Raymond W.K. Leung , Jun Yao , Yanzhou Ma , Yilin Chang , Junyan Huo
IPC分类号： H04N7/26 , H04L27/28 , H04L27/38
CPC分类号： H04N19/174 , H04L5/0044 , H04L27/2608 , H04N19/895
摘要： A method for concealing errors includes that the transmitting end splits the received compressed video data into slice structures, allocates the adjacent slice structures to non-adjacent OFDM sub-channels or sub-channel groups, and sends the slice structures to the receiving end; the receiving end conceals the errors on a slice structure according to the slice structure which is chronologically or spatially related to the erroneous slice structure if detecting that any error occurs on the slice structure. The transmitting end includes a slice splitting module and a frequency domain interleaving module; the receiving end includes a domain de-interleaving module, a decompression and error detecting module, and an error concealing module.
摘要翻译：隐藏错误的方法包括：发送端将接收到的压缩视频数据分割成片结构，将相邻片段结构分配给非相邻OFDM子信道或子信道组，并将片结构发送到接收端; 如果检测到切片结构上发生任何错误，则接收端根据与时间顺序或空间上相关的切片结构的切片结构来隐藏切片结构上的错误。发送端包括分片模块和频域交织模块; 接收端包括域去交织模块，解压缩和错误检测模块以及错误隐藏模块。

5. 发明申请

US20070263097A1 Method For Acquiring And Controlling Automatic Exposure Control Parameters And Imaging Device 有权
标题翻译：用于获取和控制自动曝光控制参数和成像装置的方法
公开(公告)号：US20070263097A1
公开(公告)日：2007-11-15
申请号：US11616248
申请日：2006-12-26
申请人： Guangyao Zhao , Xiaoxia Wei , Jing Wang , Haitao Yang , Yilin Chang
发明人： Guangyao Zhao , Xiaoxia Wei , Jing Wang , Haitao Yang , Yilin Chang
IPC分类号： H04N5/235
CPC分类号： H04N5/2352 , H04N5/2351
摘要： The present invention discloses a method for acquiring automatic exposure control parameters and a method for controlling automatic exposure control parameters and an imaging device. The core idea is to take the brightness weighted average value obtained according to brightness distribution weighted statistics of the image as the exposure control parameter. Then through adjusting the weighted coefficient of pixels in different brightness regions, control the influence of the pixel concentrated brightness regions on the brightness average value. Because the brightness distribution is the basis for determining weighted statistics, the control method of the present invention is not influenced by the scene assumption. Rather it can be universally adapted to a variety of different scenes, and the exposure control effect is not influenced by the position of scenes in the actual bright region/dark region and block distribution.
摘要翻译：本发明公开了一种获取自动曝光控制参数的方法和一种控制自动曝光控制参数的方法和一种成像装置。核心思想是将根据图像的亮度分布加权统计获得的亮度加权平均值作为曝光控制参数。然后通过调整不同亮度区域的像素加权系数，控制像素浓度亮度区域对亮度平均值的影响。由于亮度分布是确定加权统计的基础，所以本发明的控制方法不受场景假设的影响。相反，它可以普遍适用于各种不同的场景，并且曝光控制效果不受实际亮区/暗区和块分布中场景的位置的影响。

6. 发明授权

US07688359B2 Method for acquiring and controlling automatic exposure control parameters and imaging device 有权
标题翻译：用于获取和控制自动曝光控制参数和成像装置的方法
公开(公告)号：US07688359B2
公开(公告)日：2010-03-30
申请号：US11616248
申请日：2006-12-26
申请人： Guangyao Zhao , Xiaoxia Wei , Jing Wang , Haitao Yang , Yilin Chang
发明人： Guangyao Zhao , Xiaoxia Wei , Jing Wang , Haitao Yang , Yilin Chang
IPC分类号： H04N5/235 , H04N5/228 , H04N9/73 , H04N5/238 , G03B7/00
CPC分类号： H04N5/2352 , H04N5/2351
摘要： The present invention discloses a method for acquiring automatic exposure control parameters and a method for controlling automatic exposure control parameters and an imaging device. The core idea is to take the brightness weighted average value obtained according to brightness distribution weighted statistics of the image as the exposure control parameter. Then through adjusting the weighted coefficient of pixels in different brightness regions, control the influence of the pixel concentrated brightness regions on the brightness average value. Because the brightness distribution is the basis for determining weighted statistics, the control method of the present invention is not influenced by the scene assumption. Rather it can be universally adapted to a variety of different scenes, and the exposure control effect is not influenced by the position of scenes in the actual bright region/dark region and block distribution.
摘要翻译：本发明公开了一种获取自动曝光控制参数的方法和一种控制自动曝光控制参数的方法和一种成像装置。核心思想是将根据图像的亮度分布加权统计获得的亮度加权平均值作为曝光控制参数。然后通过调整不同亮度区域的像素加权系数，控制像素浓度亮度区域对亮度平均值的影响。由于亮度分布是确定加权统计的基础，所以本发明的控制方法不受场景假设的影响。相反，它可以普遍适用于各种不同的场景，并且曝光控制效果不受实际亮区/暗区和块分布中场景的位置的影响。

7. 发明申请

US20080095246A1 METHOD, RECEIVER AND TRANSMITTER FOR ELIMINATING ERRORS IN H.264 COMPRESSED VIDEO TRANSMISSION 审中-公开
标题翻译：用于消除H.264压缩视频传输中的错误的方法，接收器和发送器
公开(公告)号：US20080095246A1
公开(公告)日：2008-04-24
申请号：US11874680
申请日：2007-10-18
申请人： Zhong LUO , Bin Song , Yilin Chang , Ningzhao Zhou
发明人： Zhong LUO , Bin Song , Yilin Chang , Ningzhao Zhou
IPC分类号： H04N7/64
CPC分类号： H04N19/89 , H04N19/107 , H04N19/164 , H04N19/174 , H04N19/61
摘要： The invention relates to a method for eliminating errors in compressed video transmission. A method for eliminating errors in H.264 compressed video transmission is disclosed, to eliminating errors in a simple and efficient manner. In the invention, an error information feedback mechanism is used in combination with error concealment and error propagation suppression to eliminate errors. An error is detected and statistics of error information, such as position of lost data, is obtained by sequence numbers of NALUs and information for carrying slices. An error information feedback channel is established in H.264 architecture by defining an extended SEI message. The error propagation is suppressed by segment-wise intra-coding in batches.
摘要翻译：本发明涉及一种消除压缩视频传输错误的方法。公开了一种消除H.264压缩视频传输错误的方法，以简单有效的方式消除错误。在本发明中，错误信息反馈机制与错误隐藏和误差传播抑制结合使用以消除错误。检测到错误，并通过NALU的序列号和携带切片的信息获得错误信息的统计信息，例如丢失数据的位置。通过定义扩展的SEI消息，在H.264架构中建立了错误信息反馈信道。批量地通过分段内部编码来抑制误差传播。

8. 发明授权

US08037397B2 Method for recovering a lost data unit 有权
标题翻译：恢复丢失数据单元的方法
公开(公告)号：US08037397B2
公开(公告)日：2011-10-11
申请号：US11574272
申请日：2005-08-09
申请人： Zhong Luo , Jing Wang , Da Al , Jie Jia , Yilin Chang
发明人： Zhong Luo , Jing Wang , Da Al , Jie Jia , Yilin Chang
IPC分类号： G06F11/00
CPC分类号： H04N19/188 , H03M13/15 , H03M13/1515 , H03M13/373 , H04N19/66 , H04N19/67
摘要： The present invention discloses a method for recovering a lost data unit, the method including: partitioning data to be transmitted into one or more data units, sorting the data units according to importance levels of the data units, and determining a check rule for the one or more data units, performing, by a transmitting end, a calculation on the sorted data units according to a predetermined algorithm depending on the check rule, to generate one or more corresponding check units; transmitting, by the transmitting end, the one or more data units to a receiving end in a sorted order, and transmitting the corresponding check units to the receiving end; recovering, by the receiving end, a lost data unit according to the receiving data units and check units as well as the check rule. With the method, the loss-preventative capability of the data units may be improved.
摘要翻译：本发明公开了一种用于恢复丢失数据单元的方法，该方法包括：将要发送的数据划分成一个或多个数据单元，根据数据单元的重要性级别对数据单元进行排序，并确定该数据单元的检查规则或更多数据单元，通过发送端根据检查规则根据预定算法执行排序数据单元的计算，以生成一个或多个对应的检查单元; 由发送端将所述一个或多个数据单元按照排序顺序发送到接收端，并将相应的支票单元发送到接收端; 根据接收数据单元和检查单元以及检查规则，由接收端恢复丢失的数据单元。通过该方法，可以提高数据单元的损失预防能力。

9. 发明申请

US20080144724A1 METHOD FOR PROTECTING VIDEO TRANSMISSION BASED ON H.264 审中-公开
标题翻译：基于H.264保护视频传输的方法
公开(公告)号：US20080144724A1
公开(公告)日：2008-06-19
申请号：US11868077
申请日：2007-10-05
申请人： Zhong LUO , Bin Song , Ningzhao Zhou , Yilin Chang
发明人： Zhong LUO , Bin Song , Ningzhao Zhou , Yilin Chang
IPC分类号： H04N7/24
CPC分类号： H03M13/353 , H03M13/373 , H03M13/3761 , H04N7/147 , H04N7/148 , H04N19/102 , H04N19/166 , H04N19/61 , H04N19/89
摘要： A method for protecting video transmission based on H.264 is disclosed, In the invention, a receiving end performs statistical analysis on the communication quality and the result is fed back to a transmitting end, the transmitting end adjusts the protection strategy self adaptively; the receiving end performs statistical analysis on the accumulated lost slice rate and position information about lost data based on the discontinuous situation of NALU sequence numbers; the receiving end feeds the statistical information back to the transmitting end with extended SEI message; the transmitting end configures two sets of protection strategy systems to separately protect critical data and non critical data, and selects the protection strategy of appropriate level according to the accumulated lost slice rate that is fed back; the receiving end transmits position information about lost data back to the transmitting end; the transmitting end resends the lost data.
摘要翻译：公开了一种用于保护基于H.264的视频传输的方法，在本发明中，接收端对通信质量进行统计分析，并将结果反馈到发送端，发送端自适应地调整保护策略; 接收端基于NALU序列号的不连续情况对累积的丢失切片率和关于丢失数据的位置信息进行统计分析; 接收端通过扩展的SEI消息将统计信息反馈给发送端; 发送端配置两套保护策略系统，分别保护关键数据和非关键数据，根据反馈的累积丢失切片率选择合适级别的保护策略; 接收端将有关丢失数据的位置信息发回发送端; 发送端重新发送丢失的数据。

10. 发明申请

US20080273861A1 Method for Measuring Multimedia Video Communication Quality 有权
标题翻译：多媒体视频通信质量测量方法
公开(公告)号：US20080273861A1
公开(公告)日：2008-11-06
申请号：US11793546
申请日：2006-06-23
申请人： Fuzheng Yang , Zhong Luo , Shuai Wan , Yilin Chang
发明人： Fuzheng Yang , Zhong Luo , Shuai Wan , Yilin Chang
IPC分类号： H04N5/91
CPC分类号： H04N17/004 , G06T1/0028 , G06T2201/0051 , G06T2201/0061 , G06T2201/0083 , G06T2201/0202
摘要： A method for measuring multimedia communication quality is disclosed. The multimedia video communication quality may be objectively reflected through the embedment and extraction of digital watermark under a precondition that the quality of the multimedia video data is not obviously affected. In the invention, each frame of the multimedia video data is uniformly divided into blocks of equal size and watermark data is embedded in each of the blocks, so that the watermark may be uniformly distributed. The multimedia video data are divided into groups, and the watermark is embedded in a part of the frames with equal interval between the frames in each group to reduce the effect of the watermark on the data. The watermark information is directly embedded in the spatial domain of the original video data. The PSNR of the video data is linearly fitted using the accuracy rate of the recovered watermark relative to the original watermark, and the fitted PSNR is regarded as a measurement indication of the multimedia video communication quality. Post-processing such as smoothing filtering is performed on video frames after watermark extraction to eliminate the effect of the watermark on the multimedia video data quality.
摘要翻译：公开了一种用于测量多媒体通信质量的方法。多媒体视频通信质量可以通过数字水印的嵌入和提取在多媒体视频数据的质量不受明显影响的前提下被客观地反映出来。在本发明中，将多媒体视频数据的每一帧均匀地划分为相同大小的块，并且将水印数据嵌入到每个块中，使得水印可以均匀分布。多媒体视频数据被分成组，并且水印被嵌入在每个组中的帧之间具有相等间隔的帧的一部分中以减少水印对数据的影响。水印信息直接嵌入到原始视频数据的空间域中。视频数据的PSNR使用相对于原始水印的恢复水印的准确率线性拟合，拟合PSNR被认为是多媒体视频通信质量的测量指示。对水印提取后的视频帧进行平滑滤波等后处理，消除水印对多媒体视频数据质量的影响。

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