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1. 发明申请

US20110119064A1 AUDIO DATA BIT RATE DETECTOR 有权
标题翻译：音频数据速率检测器
公开(公告)号：US20110119064A1
公开(公告)日：2011-05-19
申请号：US12620762
申请日：2009-11-18
申请人： Robert S. Nemiroff , Jing Yang Chen , Siu-Wai Wu
发明人： Robert S. Nemiroff , Jing Yang Chen , Siu-Wai Wu
IPC分类号： G10L19/00
CPC分类号： G10L19/24 , G10L19/167 , H04N21/4341 , H04N21/4394
摘要： A detector for determining an audio data bit rate of a pre-compressed audio elementary stream (AES), in which the pre-compressed AES includes a plurality of preamble length fields is provided. The detector includes an analyzer module configured to determine one or more candidate audio data bit rates of the AES from the plurality of preamble length fields, a detector module configured to determine whether one or more of the candidate audio data bit rates are correct, and a selector module configured to select one of the one or more candidate audio data bit rates determined to be correct as the audio data bit rate of the pre-compressed AES.
摘要翻译：一种用于确定预压缩音频基本流（AES）的音频数据比特率的检测器，其中预压缩AES包括多个前同步码长度字段。检测器包括：分析器模块，被配置为从多个前导码长度字段确定AES的一个或多个候选音频数据比特率;检测器模块，被配置为确定候选音频数据比特率中的一个或多个是否正确;以及选择器模块，被配置为选择被确定为正确的一个或多个候选音频数据比特率中的一个作为预压缩AES的音频数据比特率。

2. 发明授权

US07653129B2 Method and apparatus for providing intra coding frame bit budget 有权
标题翻译：提供帧内编码帧位预算的方法和装置
公开(公告)号：US07653129B2
公开(公告)日：2010-01-26
申请号：US11023775
申请日：2004-12-28
申请人： Yong He , Siu-Wai Wu , Jing Yang Chen
发明人： Yong He , Siu-Wai Wu , Jing Yang Chen
IPC分类号： H04N7/12
CPC分类号： H04N19/103 , H04N19/115 , H04N19/124 , H04N19/152 , H04N19/159 , H04N19/172 , H04N19/177 , H04N19/51 , H04N19/57 , H04N19/61
摘要： The present invention discloses a system and method for adaptive adjustment of bit budget that favors the allocation of bits to intra coding frames (I frames). Namely, an encoder is able to dynamically adjust the bit budget for each picture type in an image sequence, thereby effecting proper usage of the available transmission bandwidth and improving the picture quality. In one embodiment, the present invention will allocate more encoding bandwidth to a current Intra coding frame when the average quantization level of inter coding frames (e.g., P and B frames) of a previous group of pictures is relatively high.
摘要翻译：本发明公开了一种有利于对帧内编码帧（I帧）的比特分配的比特预算的自适应调整的系统和方法。也就是说，编码器能够对图像序列中的每个图像类型的位预算进行动态调整，从而正确使用可用的传输带宽并提高图像质量。在一个实施例中，当前一组图像的帧间编码帧（例如，P和B帧）的平均量化级别相对较高时，本发明将为当前的帧内编码帧分配更多的编码带宽。

3. 发明授权

US06731685B1 Method and apparatus for determining a bit rate need parameter in a statistical multiplexer 有权
标题翻译：用于在统计多路复用器中确定比特率需求参数的方法和装置
公开(公告)号：US06731685B1
公开(公告)日：2004-05-04
申请号：US09665373
申请日：2000-09-20
申请人： Vincent Liu , Siu-Wai Wu , Hanson On , Robert S. Nemiroff , Michael Casteloes , Jing Yang Chen , Rebecca Lam
发明人： Vincent Liu , Siu-Wai Wu , Hanson On , Robert S. Nemiroff , Michael Casteloes , Jing Yang Chen , Rebecca Lam
IPC分类号： H04N712
CPC分类号： H04N21/4344 , H04J3/1688 , H04N19/115 , H04N19/137 , H04N19/14 , H04N19/159 , H04N19/172 , H04N19/196 , H04N19/198 , H04N19/577 , H04N19/61 , H04N21/23608 , H04N21/2365 , H04N21/23655 , H04N21/4347
摘要： A statistical multiplexer for coding and multiplexing multiple channels of digital television data, or multiple panels of HDTV digital television data. A bit rate need parameter is determined for each encoder in a stat mux group by scaling the complexities of previous pictures of the same and different picture types. Scaling factors based on an activity level, motion estimation score, and number of pictures of a certain type in a GOP, may be used. Moreover, the scaling factors may be bounded based on a linear or non-linear operator to prevent large variations in the factors. An encoding bit rate is allocated to each channel based on its need parameter.
摘要翻译：用于编码和复用多个数字电视数据的多路复用器，或多个HDTV数字电视数据面板。通过缩放相同和不同图像类型的以前图像的复杂度，在统计复用组中为每个编码器确定比特率需求参数。可以使用基于活动水平，运动估计得分和GOP中某种类型的图片数量的缩放因子。此外，缩放因子可以基于线性或非线性算子来限制，以防止因素中的大的变化。根据其需要参数将编码比特率分配给每个信道。

4. 发明授权

US08510107B2 Audio data bit rate detector 有权
标题翻译：音频数据比特率检测器
公开(公告)号：US08510107B2
公开(公告)日：2013-08-13
申请号：US12620762
申请日：2009-11-18
申请人： Robert S. Nemiroff , Jing Yang Chen , Siu-Wai Wu
发明人： Robert S. Nemiroff , Jing Yang Chen , Siu-Wai Wu
IPC分类号： G10L21/04
CPC分类号： G10L19/24 , G10L19/167 , H04N21/4341 , H04N21/4394
摘要： A detector for determining an audio data bit rate of a pre-compressed audio elementary stream (AES), in which the pre-compressed AES includes a plurality of preamble length fields is provided. The detector includes an analyzer module configured to determine one or more candidate audio data bit rates of the AES from the plurality of preamble length fields, a detector module configured to determine whether one or more of the candidate audio data bit rates are correct, and a selector module configured to select one of the one or more candidate audio data bit rates determined to be correct as the audio data bit rate of the pre-compressed AES.
摘要翻译：一种用于确定预压缩音频基本流（AES）的音频数据比特率的检测器，其中预压缩AES包括多个前同步码长度字段。检测器包括：分析器模块，被配置为从多个前导码长度字段确定AES的一个或多个候选音频数据比特率;检测器模块，被配置为确定候选音频数据比特率中的一个或多个是否正确;以及选择器模块，被配置为选择被确定为正确的一个或多个候选音频数据比特率中的一个作为预压缩AES的音频数据比特率。

5. 发明授权

US07110455B2 Noise reduction pre-processor for digital video using previously generated motion vectors and adaptive spatial filtering 有权
标题翻译：使用先前生成的运动矢量和自适应空间滤波的数字视频的降噪预处理器
公开(公告)号：US07110455B2
公开(公告)日：2006-09-19
申请号：US09929553
申请日：2001-08-14
申请人： Siu-Wai Wu , Jing Yang Chen
发明人： Siu-Wai Wu , Jing Yang Chen
IPC分类号： H04N7/12
CPC分类号： G06T5/50 , G06T5/002 , G06T2207/10016 , G06T2207/20182 , G06T2207/20192 , H04N19/117 , H04N19/137 , H04N19/139 , H04N19/142 , H04N19/15 , H04N19/172 , H04N19/194 , H04N19/40 , H04N19/615 , H04N19/80
摘要： Noise is reduced in a video system by applying motion compensated temporal filtering using previously generated motion vectors and adaptive spatial filtering at scene change frames. Various types of noise can be introduced into video prior to compression and transmission. Artifacts arise from recording and signal manipulation, terrestrial or orbital communications, or during decoding. Noise introduced prior to image compression interferes with performance and subsequently impairs system performance. While filtering generally reduces noise in a video image, it can also reduce edge definition leading to loss of focus. Filtering can also tax system throughput, since increased computational complexity often results from filtering schemes. Furthermore, the movement of objects within frames, as defined by groups of pixels, complicates the noise reduction process by adding additional complexity. In addition to improvements made to FIR spatial filtering, the present invention improves on previous filtering techniques by using Infinite Impulse Response (IR) temporal filtering to reduce noise while maintaining edge definition. It also uses motion vectors previously calculated as part of the first-pass image encoding or alternatively by transcoding to reduce computational complexity for P-frame and B-frame image preprocessing. Single stage P-frame temporal noise filtering and double stage B-frame temporal noise filtering are presented.
摘要翻译：通过使用先前产生的运动矢量和场景变换帧的自适应空间滤波应用运动补偿时间滤波，在视频系统中降低噪声。在压缩和传输之前，可以将各种类型的噪声引入到视频中。人工制品来自记录和信号处理，地面或轨道通信，或解码期间。在图像压缩之前引入的噪声会影响性能，从而影响系统性能。虽然过滤通常会降低视频图像中的噪点，但它也可以减少边缘定义，导致焦点丢失。过滤还可以对系统吞吐量进行税收，因为增加的计算复杂度通常来自于过滤方案。此外，如由像素组所定义的帧内的对象的移动通过增加额外的复杂性而使降噪过程复杂化。除了对FIR空间滤波进行的改进之外，本发明通过使用无限脉冲响应（IR）时间滤波来降低噪声同时保持边缘定义来改进先前的滤波技术。它还使用先前作为第一遍图像编码的一部分计算的运动矢量，或者通过代码转换来降低P帧和B帧图像预处理的计算复杂度。提出了单级P帧时间噪声滤波和双级B帧时域噪声滤波。

6. 发明申请

US20130064308A1 CODING AND DECODING SYNCHRONIZED COMPRESSED VIDEO BITSTREAMS 审中-公开
标题翻译：编码和解码同步压缩视频比特
公开(公告)号：US20130064308A1
公开(公告)日：2013-03-14
申请号：US13232557
申请日：2011-09-14
申请人： Robert S. Nemiroff , Jing Yang Chen , Rebecca Lam , Brenda L. Van Veldhuisen , Siu-Wai Wu
发明人： Robert S. Nemiroff , Jing Yang Chen , Rebecca Lam , Brenda L. Van Veldhuisen , Siu-Wai Wu
IPC分类号： H04N7/54
CPC分类号： H04N21/23439 , H04N21/8456 , H04N21/8547
摘要： Coding may include receiving a source video bitstream including source frames and determining information from the source frames. The determined information may include timing information and grouping information and may be utilized in encoding synchronizing processed frames for a synchronized compressed video bitstream. Decoding may include receiving a synchronized compressed video bitstream including the encoding synchronizing processed frames. The decoding may include preparing video chunk files having boundaries defined by the encoding synchronizing processed frames and decoding the prepared video chunk files.
摘要翻译：编码可以包括接收包括源帧的源视频比特流和从源帧确定信息。确定的信息可以包括定时信息和分组信息，并且可以用于对同步的压缩视频比特流进行同步处理的帧的编码。解码可以包括接收包括编码同步处理帧的同步压缩视频比特流。解码可以包括准备具有由编码同步处理的帧定义的边界的视频块文件，并且解码准备的视频块文件。

7. 发明授权

US07512182B2 Method and apparatus for performing motion compensated temporal filtering in video encoding 有权
公开(公告)号：US07512182B2
公开(公告)日：2009-03-31
申请号：US10929976
申请日：2004-08-30
申请人： Jing Yang Chen
发明人： Jing Yang Chen
IPC分类号： H04N1/58 , H04N1/409 , H04N5/911
CPC分类号： H04N19/577 , H04N19/117 , H04N19/194
摘要： A method (50) and apparatus (40) for reducing noise in a video signal calculates (53) a discrimination value of a filter based on a magnitude difference between a current frame and a prior frame of a sequence of frames and modifies (54) the current frame using the modified discrimination value. The output of the filter is calculated as follows: g(i, j, k)=f(i, j, k)±β wherein: f (i, j, k) is the current frame input to the filter; g(i, j, k) is the current frame output from the filter; and β is the discrimination value of the filter, which is calculated as follows: β = { κδ ′ + χ , δ ′ = max ⁢ { δ , δ 0 } , δ

8. 发明授权

US08948249B2 Encoder-aided segmentation for adaptive streaming 有权
标题翻译：用于自适应流的编码器辅助分割
公开(公告)号：US08948249B2
公开(公告)日：2015-02-03
申请号：US13588885
申请日：2012-08-17
申请人： Wendell Sun , Jing Yang Chen , John R. Shumate
发明人： Wendell Sun , Jing Yang Chen , John R. Shumate
IPC分类号： H04N7/26 , H04N21/2343 , H04N21/845 , H04N21/24 , H04N21/61
CPC分类号： H04N21/2343 , H04N21/23439 , H04N21/2402 , H04N21/6125 , H04N21/8455 , H04N21/8456
摘要： In one embodiment, a method for encoding content includes receiving source content and encoding the source content into a plurality of content streams. The encoding includes aligning the plurality of content streams at Group of Pictures (GOP) boundaries. The encoding further includes embedding, in each content stream, metadata identifying segmentation points within the content stream, where the segmentation points correspond to one or more of the GOP boundaries.
摘要翻译：在一个实施例中，用于编码内容的方法包括接收源内容并将源内容编码为多个内容流。编码包括在图像组（GOP）边界处对齐多个内容流。编码还包括在每个内容流中嵌入识别内容流内的分割点的元数据，其中分割点对应于GOP边界中的一个或多个。

9. 发明申请

US20090016451A1 Method and Apparatus for Performing Motion Compensated Temporal Filtering in Video Encoding 有权
公开(公告)号：US20090016451A1
公开(公告)日：2009-01-15
申请号：US12233315
申请日：2008-09-18
申请人： Jing Yang Chen
发明人： Jing Yang Chen
IPC分类号： H04N7/12
CPC分类号： H04N19/577 , H04N19/117 , H04N19/194
摘要： A method (50) and apparatus (40) for reducing noise in a video signal calculates (53) a discrimination value of a filter based on a magnitude difference between a current frame and a prior frame of a sequence of frames and modifies (54) the current frame using the modified discrimination value. The output of the filter is calculated as follows: g(i, j, k)=f(i, j, k)±β wherein: f(i, j, k) is the current frame input to the filter; g(i, j, k) is the current frame output from the filter; and β is the discrimination value of the filter, which is calculated as follows: β = { κδ ′ + χ , δ ′ = max  { δ , δ 0 } , δ

10. 发明授权

US08588310B2 Method and apparatus for managing delivery of bits to a decoder 有权
标题翻译：用于管理向解码器传送比特的方法和装置
公开(公告)号：US08588310B2
公开(公告)日：2013-11-19
申请号：US12872931
申请日：2010-08-31
申请人： Jing Yang Chen
发明人： Jing Yang Chen
IPC分类号： H04N7/26
CPC分类号： H04N21/23406 , H04N19/152 , H04N19/164 , H04N21/23805 , H04N21/242 , H04N21/4307 , H04N21/44004
摘要： A method for managing delivery of encoded bits to a decoder is disclosed. In the method, a number of bits associated with a variable system delay is determined. The variable system delay is a time interval between each of a plurality of frames being encoded and decoded and is measured with respect to a current time for each of the plurality of frames. A number of bits in an encoder buffer for an encoder is determined. A number of bits in a decoder buffer for a decoder configured to receive encoded bits from the encoder is determined based on the bits associated with the variable system delay and the bits in the encoder buffer. Delivery of the encoded bits to the decoder is managed based on the number of bits determined to be in the decoder buffer.
摘要翻译：公开了一种用于管理编码比特到解码器的传送的方法。在该方法中，确定与可变系统延迟相关联的多个位。可变系统延迟是编码和解码的多个帧中的每一个之间的时间间隔，并且针对多个帧中的每个帧的当前时间被测量。确定用于编码器的编码器缓冲器中的多个位。基于与可变系统延迟相关联的比特和编码器缓冲器中的比特，确定用于解码器的解码器缓冲器中的多个比特，其被配置为从编码器接收编码比特。基于确定在解码器缓冲器中的比特数来管理编码比特到解码器的传送。

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