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1. 发明授权

US06810083B2 Method and system for estimating objective quality of compressed video data 失效
标题翻译：用于估计压缩视频数据的客观质量的方法和系统
公开(公告)号：US06810083B2
公开(公告)日：2004-10-26
申请号：US09996003
申请日：2001-11-16
申请人： Yingwei Chen , Jorge Caviedes
发明人： Yingwei Chen , Jorge Caviedes
IPC分类号： H04N712
CPC分类号： H04N17/004 , H04N19/60 , H04N19/85
摘要： The present invention relates to a method and system for evaluating the quality of encoded video data without gaining access to the source data or the compressed video bitstream. The system is configured to decode compressed video data using an MPEG decoder to produce decompressed video data. The decoded data is analyzed to determine whether the decompressed video data is intra-coded. If so, a discrete cosine transform (DCT) is performed to produce a set of DCT coefficients for at least one AC frequency band in the decompressed video data. At the same time, quantization matrix data of a frame of the decompressed video data as well as a quantizer scale for each block of the decompressed video data are extracted. Thereafter, the variance of the converted DCT coefficients is obtained, and then an average quantization error for each set of said DCT coefficients is determined based on the variance, the quantization matrix, and the quantizer scale. Lastly, a peak signal to noise ratio (PSNR) is calculated based on the resultant average quantization error.
摘要翻译：本发明涉及一种用于评估编码视频数据的质量而不获取对源数据或压缩视频比特流的访问的方法和系统。该系统被配置为使用MPEG解码器对压缩的视频数据解码以产生解压缩的视频数据。分析解码数据以确定解压缩的视频数据是否被帧内编码。如果是这样，则执行离散余弦变换（DCT）以在解压缩的视频数据中产生用于至少一个AC频带的一组DCT系数。同时，解压缩的视频数据的帧的量化矩阵数据以及解压缩的视频数据的每个块的量化器标度被提取。此后，获得转换的DCT系数的方差，然后基于方差，量化矩阵和量化器尺度确定每组所述DCT系数的平均量化误差。最后，基于所得到的平均量化误差来计算峰值信噪比（PSNR）。

2. 发明授权

US07092448B2 Method and system for estimating no-reference objective quality of video data 有权
公开(公告)号：US07092448B2
公开(公告)日：2006-08-15
申请号：US10155211
申请日：2002-05-24
申请人： Deepak S. Turaga , Yingwei Chen , Jorge Caviedes
发明人： Deepak S. Turaga , Yingwei Chen , Jorge Caviedes
IPC分类号： H04N7/12
CPC分类号： H04N17/004
摘要： The present invention relates to a method and system for estimating the quality of encoded video data without gaining access to the source data. The system is configured to decode compressed video data using an MPEG/H.263 decoder to produce decompressed video data. The decoded data is subject to a discrete cosine transform (DCT) to produce a set of DCT coefficients of the decompressed video data is determined to be intra-coded. Meanwhile, the quantization matrix including a quantizier step size for each block of the decompressed video data are extracted. Following this, statistical properties of the DCT coefficients are extracted from the decoded video. Then, an average quantization error for both AC and DC coefficients is determined using information regarding the quantization and the statistical properties. Finally, this estimated quantization error is used for in computing a peak signal to noise ratio (PSNR).

3. 发明授权

US09215621B2 Air-time fair transmission regulation without explicit traffic specifications for wireless networks 有权
标题翻译：空中公平的传输规则，无明确的无线网络流量规范
公开(公告)号：US09215621B2
公开(公告)日：2015-12-15
申请号：US11719774
申请日：2005-11-16
申请人： Yingwei Chen , Richard Chen , Ruediger Schmitt , Saishankar Nandagopalan
发明人： Yingwei Chen , Richard Chen , Ruediger Schmitt , Saishankar Nandagopalan
IPC分类号： H04J1/16 , H04W4/00 , H04J3/16 , H04W28/14 , H04L12/54 , H04L12/851 , H04L12/807 , H04L12/801 , H04L12/861
CPC分类号： H04W28/14 , H04L47/24 , H04L47/27 , H04L47/29 , H04L47/50 , H04L49/90
摘要： A system and method are provided for non-transmission specification fair air-time, NT-AirFair, allocation control by tracking the transmission time (308) consumed by each link to detect any increase and enforcing air -time allocation (309) based on the pattern of usage derived therefrom.
摘要翻译：提供了一种系统和方法，用于通过跟踪每个链路消耗的传输时间（308）来检测任何增加和执行空中时间分配（309）的非传输规范公平的空中时间，NT-AirFair，分配控制从中导出的使用模式。

4. 发明授权

US08604065B2 Pyridyl cyanoguanidine derivatives 有权
标题翻译：吡啶基氰胍衍生物
公开(公告)号：US08604065B2
公开(公告)日：2013-12-10
申请号：US13577218
申请日：2010-11-18
申请人： Hesheng Zhang , Xin Chen , Yingwei Chen , Junjie Cong , Xingwen Li
发明人： Hesheng Zhang , Xin Chen , Yingwei Chen , Junjie Cong , Xingwen Li
IPC分类号： C07D213/75 , C07C277/08 , A61K31/44 , A61K31/155
CPC分类号： C07D213/75
摘要： Compounds of formula (I) or pharmaceutically acceptable salts thereof, and use for treating cancer thereof are disclosed, wherein, the definitions of X, Y, R1, R2 and n are described in description.
摘要翻译：公开了式（I）化合物或其药学上可接受的盐，其用于治疗癌症，其中X，Y，R 1，R 2和n的定义在描述中描述。

5. 发明申请

US20090147765A1 AIR-TIME FAIR TRANSMISSION REGULATION WITHOUT EXPLICIT TRAFFIC SPECIFICATIONS FOR WIRELESS NETWORKS 有权
标题翻译：无线网络无明确交通规范的空时公告传输规则
公开(公告)号：US20090147765A1
公开(公告)日：2009-06-11
申请号：US11719774
申请日：2005-11-16
申请人： Yingwei Chen , Richard Chen , Ruediger Schmitt , Saishankar Nandagopalan
发明人： Yingwei Chen , Richard Chen , Ruediger Schmitt , Saishankar Nandagopalan
IPC分类号： H04J3/00
CPC分类号： H04W28/14 , H04L47/24 , H04L47/27 , H04L47/29 , H04L47/50 , H04L49/90
摘要： A system and method are provided for non-transmission specification fair air-time, NT-AirFair, allocation control by tracking the transmission time (308) consumed by each link to detect any increase and enforcing air -time allocation (309) based on the pattern of usage derived therefrom.
摘要翻译：提供了一种系统和方法，用于通过跟踪每个链路消耗的传输时间（308）来检测任何增加和执行空中时间分配（309）的非传输规范公平的空中时间，NT-AirFair，分配控制从中导出的使用模式。

6. 发明授权

US07242714B2 Cyclic resynchronization marker for error tolerate video coding 失效
标题翻译：用于容错视频编码的循环重新同步标记
公开(公告)号：US07242714B2
公开(公告)日：2007-07-10
申请号：US10284218
申请日：2002-10-30
申请人： Jong Chul Ye , Yingwei Chen
发明人： Jong Chul Ye , Yingwei Chen
IPC分类号： H04N1/66 , G06K9/36
CPC分类号： H04N21/4143 , H04N19/66 , H04N19/68 , H04N19/89
摘要： A system and method are disclosed that provide an advanced design of coded video packets using a resynchronization maker for video transmission applications. The resynchronization marker has a fixed ranged bit length within each video object plane or video frame and is cyclically updated video frame by video frame. This coded video packet structure allows decoders to automatically find the video object plane boundary without additional bit stream overhead. This has a particular advantage when a video object plane header is lost during transmission.
摘要翻译：公开了一种系统和方法，其提供使用用于视频传输应用的再同步制造者的编码视频分组的高级设计。再同步标记在每个视频对象平面或视频帧内具有固定的范围位长度，并且通过视频帧循环更新视频帧。这种编码的视频分组结构允许解码器自动找到视频对象平面边界，而不需要额外的比特流开销。当在传输期间视频对象平面头丢失时，这具有特别的优点。

7. 发明申请

US20070121719A1 System and method for combining advanced data partitioning and fine granularity scalability for efficient spatiotemporal-snr scalability video coding and streaming 审中-公开
标题翻译：用于结合高级数据分区和精细粒度可扩展性的高效时空snr可扩展性视频编码和流式传输的系统和方法
公开(公告)号：US20070121719A1
公开(公告)日：2007-05-31
申请号：US10573747
申请日：2004-09-27
申请人： Mihaela Van Der Schaar , Yingwei Chen
发明人： Mihaela Van Der Schaar , Yingwei Chen
IPC分类号： H04B1/66 , H04N7/12
CPC分类号： H04N21/234327 , H04N19/103 , H04N19/115 , H04N19/14 , H04N19/147 , H04N19/172 , H04N19/34 , H04N19/40 , H04N19/61 , H04N21/234363 , H04N21/2662 , H04N21/64322
摘要： A system and method is provided for combining advanced data partitioning and fine granularity scalability in the transmission of digital video signals. A partition unit 440 located in a base layer encoding unit 410 of a video encoder 400 partitions a base layer bit stream 310, 320 into a base layer first partition bit stream 310 and a base layer second partition bit stream 320. Each of the two base layer bit streams 310, 320 may be output directly or may be encoded before output. The two base layer bit streams 310, 320 may be encoded with a scalable encoder unit 442 or with a non-scalable encoder unit 444. Fine granularity scalability is improved by providing an extended base layer bit rate. The bit rate range for advanced data partitioning is also extended. The invention provides improved video coding efficiency, complexity scalability, and spatial scalability.
摘要翻译：提供了一种系统和方法，用于在数字视频信号的传输中组合高级数据分割和精细粒度可伸缩性。位于视频编码器400的基本层编码单元410中的分区单元440将基本层比特流310,320划分为基本层第一分区比特流310和基本层第二分割比特流320.两个基底可以直接输出层位流310,320，或者可以在输出之前进行编码。两个基本层比特流310,320可以用可缩放编码器单元442或不可缩放编码器单元444进行编码。通过提供扩展的基本层比特率来提高细粒度可伸缩性。高级数据分区的比特率范围也得到扩展。本发明提供了改进的视频编码效率，复杂度可扩展性和空间可伸缩性。

8. 发明申请

US20060164987A1 Adaptive dropping of prioritized transmission packets 审中-公开
标题翻译：自适应丢弃优先传输数据包
公开(公告)号：US20060164987A1
公开(公告)日：2006-07-27
申请号：US10521249
申请日：2003-07-18
申请人： Carles Ruiz Floriach , Yingwei Chen , Jong Ye
发明人： Carles Ruiz Floriach , Yingwei Chen , Jong Ye
IPC分类号： H04J1/16
CPC分类号： H04W28/06 , H04L29/06027 , H04L47/10 , H04L47/24 , H04L47/2408 , H04L47/2416 , H04L47/2441 , H04L47/28 , H04L47/32 , H04L65/80 , H04W28/10 , H04W72/1242
摘要： A series of information portions are provided to a transmitter, the information portions have critical times when they need to be available to a receiver. The transmitter estimates whether the information portions can be transmitted by the transmitter in time to be made available to the receiver before the critical time. Then the transmitter only transmits the information to the receiver if it is estimated that the information portions will be transmitted in time to be made available to the receiver before the critical time.
摘要翻译：向发射机提供一系列信息部分，当它们需要对接收机可用时，信息部分具有关键时刻。发射机估计发射机是否可以及时发送信息部分，以便在关键时刻之前可以向接收机提供。然后，如果估计信息部分将在关键时间之前及时发送到接收机，则发射机仅将信息发送到接收机。

9. 发明申请

US20060155794A1 Reduced complexity IDCT decoding with graceful degradation 审中-公开
公开(公告)号：US20060155794A1
公开(公告)日：2006-07-13
申请号：US11338023
申请日：2006-01-24
申请人： Tse-Hua Lan , Zhun Zhong , Yingwei Chen
发明人： Tse-Hua Lan , Zhun Zhong , Yingwei Chen
IPC分类号： G06F17/14
CPC分类号： H04N19/625 , H04N19/122 , H04N19/126 , H04N19/132 , H04N19/137 , H04N19/156 , H04N19/176 , H04N19/18 , H04N19/44 , H04N19/59 , H04N19/61 , H04N19/90
摘要： Data compressed according to a lossy DCT-based algorithm, such as the MPEG or MPEG2 algorithms, is decompressed according to a dynamically-selected set of DCT coefficients, with unused coefficients masked out. A macroblock of the data exhibiting little motion is decompressed with a small subset of DCT coefficients, while a macroblock exhibiting more motion is decompressed using a larger subset of DCT coefficients up the full set of DCT coefficients. Average computational complexity is thus kept low, enabling the use of inexpensive equipment, while degradation is minimized.

10. 发明申请

US20060109901A1 System and method for drift-free fractional multiple description channel coding of video using forward error correction codes 审中-公开
$System and method for drift-free fractional multiple description channel coding of video using forward error correction codes$
标题翻译：使用前向纠错码的视频的无漂移分数多重描述信道编码的系统和方法
公开(公告)号：US20060109901A1
公开(公告)日：2006-05-25
申请号：US10538566
申请日：2003-12-10
申请人： Jong Ye , Yingwei Chen
发明人： Jong Ye , Yingwei Chen
IPC分类号： H04N7/12 , H04N11/04 , H04B1/66 , H04N11/02
CPC分类号： H04N21/234327 , H03M13/35 , H04N19/34 , H04N19/37 , H04N19/39 , H04N19/40 , H04N19/61 , H04N19/67 , H04N19/89 , H04N21/234318 , H04N21/631
摘要： A system and method are disclosed that provide an improved encoding scheme where input video is encoded into a base layer and a enhancement layer according to a fine-granular scalability coding to generate a plurality of equal priority descriptions, then the generated descriptions are decoded by a decoder. The plurality of equal priority partitions is comprised of partitions generated from the base and enhancement layers and a forward error correction (FEC) code according to predetermined criteria.
摘要翻译：公开了一种系统和方法，其提供改进的编码方案，其中输入视频根据细粒度可扩展性编码被编码到基本层和增强层中以生成多个相同的优先级描述，然后所生成的描述由解码器。多个等优先级分区包括根据预定标准从基站和增强层产生的分区和前向纠错（FEC）码。

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