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1. 发明申请

WO2003017677A2 FIRST PASS ENCODING OF I AND P-FRAME COMPLEXITY FOR COMPRESSED DIGITAL VIDEO 审中-公开
标题翻译：压缩数字视频第一次编码I和P帧复杂度
公开(公告)号：WO2003017677A2
公开(公告)日：2003-02-27
申请号：PCT/US2002/025296
申请日：2002-08-09
申请人： GENERAL INSTRUMENT CORPORATION , WU, Siu-Wai , LIU, Vincent
发明人： WU, Siu-Wai , LIU, Vincent
IPC分类号： H04N7/26
CPC分类号： H04N19/80 , H04N19/103 , H04N19/139 , H04N19/142 , H04N19/149 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/179 , H04N19/503 , H04N19/61
摘要： The invention relates to an improved system and method for encoding digital images within frames for digital television transmission. Every anchor frame in a first pass encoder is encoded as a P-frame. Groups of macroblocks, such as slices in the P-frame, are alternately encoded as I-slices and P-slices. This allows both I and P encoding complexity to be computed in a single pass, without having to encode the same frame twice. Accordingly, the I-frame decision can be made at a second pass encoder instead of at the first pass encoder, thus taking advantage of a look-ahead pipeline architecture to more effectively align the I-frames with scene changes.
摘要翻译：本发明涉及用于对用于数字电视传输的帧内的数字图像进行编码的改进的系统和方法。第一遍编码器中的每个锚帧被编码为P帧。诸如P帧中的切片的宏块组被交替地编码为I切片和P切片。这样可以在一次通过中计算I和P编码复杂度，而不需要对同一帧进行两次编码。因此，可以在第二遍编码器而不是在第一遍编码器处进行I帧决定，从而利用先行流水线架构来更有效地将I帧与场景变化对准。

2. 发明申请

WO2002100110A3 SPLICING OF DIGITAL VIDEO TRANSPORT STREAMS 审中-公开
公开(公告)号：WO2002100110A3
公开(公告)日：2002-12-12
申请号：PCT/US2002/015499
申请日：2002-05-14
申请人： GENERAL INSTRUMENT CORPORATION , LIU, Vincent , NEMIROFF, Robert, S. , WU, Siu-Wai
发明人： LIU, Vincent , NEMIROFF, Robert, S. , WU, Siu-Wai
IPC分类号： H04N7/24
摘要： A mechanism for splicing advertisements, local programming and the like into a digital video transport stream is provided. In order to achieve proper splicing, an appropriate number of frames is inserted between bitstream to properly close a GOP of the first bistream into which a second bitstream carrying the spliced content is inserted. Program clock references (PCR S ) of the bitstreams are adjusted as necessary in order to force continuity between the bistreams. For inserting advertisements, the PCR of the program stream and ad stream can be tracked, and the PCR of the program stream can be used both before and after splicing. For local program insertion (which are typically substantially longer than advertisements), the PCR of the local program can be used, after adjustment thereof with an offset to maintain continuity at the splice point. The PTS an/or DTS of the inserted bistream can be modified to keep them continuous at the splice point for both video and audio streams. The spliced bitstream is transcoded to maintain a desired output bit rate, and to provide overflow/underflow protection of the video buffers.

3. 发明申请

WO2003017677A3 VIDEO ENCODING METHOD 审中-公开
公开(公告)号：WO2003017677A3
公开(公告)日：2003-02-27
申请号：PCT/US2002/025296
申请日：2002-08-09
申请人： GENERAL INSTRUMENT CORPORATION , WU, Siu-Wai , LIU, Vincent
发明人： WU, Siu-Wai , LIU, Vincent
IPC分类号： H04N7/26
摘要： The invention relates to an improved system and method for encoding digital images within frames for digital television transmission. Every anchor frame in a first pass encoder is encoded as a P-frame. Groups of macroblocks, such as slices in the P-frame, are alternately encoded as I-slices and P-slices. This allows both I and P encoding complexity to be computed in a single pass, without having to encode the same frame twice. Accordingly, the I-frame decision can be made at a second pass encoder instead of at the first pass encoder, thus taking advantage of a look-ahead pipeline architecture to more effectively align the I-frames with scene changes.

4. 发明申请

WO2005025227A1 METHODS AND APPARATUS TO IMPROVE THE RATE CONTROL DURING SPLICE TRANSITIONS 审中-公开
标题翻译：方法和设备，以提高速率控制在频段过渡期间
公开(公告)号：WO2005025227A1
公开(公告)日：2005-03-17
申请号：PCT/US2004/028872
申请日：2004-09-07
申请人： GENERAL INSTRUMENT CORPORATION , CHEN, Jingyang , NEMIROFF, Robert , WU, Siu-Wai
发明人： CHEN, Jingyang , NEMIROFF, Robert , WU, Siu-Wai
IPC分类号： H04N7/24
CPC分类号： H04N21/23424 , H04N19/132 , H04N19/152 , H04N19/40 , H04N19/587 , H04N19/61 , H04N21/44016
摘要： The present invention provides improvements of the rate control method during the transitions at the splice point. In one embodiment, black frames and/or mute audio frames are inserted at the splice point.
摘要翻译：本发明提供了在接合点的转变期间的速率控制方法的改进。在一个实施例中，黑色帧和/或静音音频帧被插入到拼接点。

5. 发明申请

WO2003017676A3 MOTION-ADAPTIVE NOISE REDUCTION PRE-PROCESSING FOR DIGITAL VIDEO SIGNAL 审中-公开
公开(公告)号：WO2003017676A3
公开(公告)日：2003-02-27
申请号：PCT/US2002/024867
申请日：2002-08-07
申请人： GENERAL INSTRUMENT CORPORATION , WU, Siu-Wai , CHEN, Jing, Yang
发明人： WU, Siu-Wai , CHEN, Jing, Yang
IPC分类号： H04N7/26
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. In addition to improvements made to FIR spatial filtering, the present invention improves on previous filtering techniques by using Infinite Impulse Response (IIR) 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 trans coding 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.

6. 发明申请

WO2003017676A2 NOISE REDUCTION PRE-PROCESSOR FOR DIGITAL VIDEO USING PREVIOUSLY GENERATED MOTION VECTORS AND ADAPTIVE SPATIAL FILTERING 审中-公开
标题翻译：使用先前产生的运动矢量和自适应空间滤波的数字视频噪声预处理器
公开(公告)号：WO2003017676A2
公开(公告)日：2003-02-27
申请号：PCT/US2002/024867
申请日：2002-08-07
申请人： GENERAL INSTRUMENT CORPORATION , WU, Siu-Wai , CHEN, Jing, Yang
发明人： WU, Siu-Wai , CHEN, Jing, Yang
IPC分类号： H04N7/26
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 ofpixels, 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 (IIR) 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 trans coding 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。人造物从记录和信号处理，地面或轨道通信或解码过程中产生。在图像压缩之前引入的噪声会干扰性能，从而影响系统性能：虽然滤波通常会降低视频图像中的噪声，但它也可以减少边缘定义，导致失去焦点。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，由像素组定义的帧内的对象的移动使噪声降低过程复杂化，增加了额外的复杂性。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（IIR）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，或者通过反编码来减少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。

7. 发明申请

WO2005017699A2 METHOD AND APPARATUS FOR SELECTION OF SCANNING MODE IN DUAL PASS ENCODING 审中-公开
标题翻译：用于选择双通道编码扫描模式的方法和装置
公开(公告)号：WO2005017699A2
公开(公告)日：2005-02-24
申请号：PCT/US2004/026298
申请日：2004-08-10
申请人： GENERAL INSTRUMENT CORPORATION , HE, Yong , WU, Siu-Wai
发明人： HE, Yong , WU, Siu-Wai
IPC分类号： G06F
CPC分类号： H04N19/129 , H04N19/146 , H04N19/15 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/194 , H04N19/61
摘要： The present invention discloses a system (100) and method for adaptive selection of scanning modes based on the content of the input image sequence. In one embodiment, two encoders (110, 120) are employed. A first encoder (110) receives the input image sequence and encodes each frame of the image sequence using at least two different scanning modes, e.g., zigzag scanning mode or alternative scanning mode in accordance with the MPEG-2 standard or the like. Specifically, different portions of each frame will be scanned using different scanning modes. This first encoding provides look-ahead information so that a second encoder is able to assign DCT quantized coefficients in a more efficient scanning order, thereby reducing encoding bits and/or improving the picture quality.
摘要翻译：本发明公开了一种基于输入图像序列的内容自适应地选择扫描模式的系统（100）和方法。在一个实施例中，采用两个编码器（110,120）。第一编码器（110）接收输入图像序列，并且使用根据MPEG-2标准等的至少两种不同的扫描模式，例如锯齿形扫描模式或替代扫描模式来对图像序列的每个帧进行编码。具体地，将使用不同的扫描模式来扫描每个帧的不同部分。该第一编码提供预先信息，使得第二编码器能够以更有效的扫描顺序分配DCT量化系数，从而减少编码比特和/或提高图像质量。

8. 发明申请

WO2004105393A1 METHODS AND APPARATUS FOR IMPROVING VIDEO QUALITY IN STATISTICAL MULTIPLEXING. 审中-公开
标题翻译：改善统计多媒体视频质量的方法和装置。
公开(公告)号：WO2004105393A1
公开(公告)日：2004-12-02
申请号：PCT/US2004/015477
申请日：2004-05-18
申请人： GENERAL INSTRUMENT CORPORATION , WU, Siu-Wai , HE, Yong
发明人： WU, Siu-Wai , HE, Yong
IPC分类号： H04N7/12
CPC分类号： H04N21/23655 , H04N19/107 , H04N19/115 , H04N19/117 , H04N19/14 , H04N19/15 , H04N19/152 , H04N19/177 , H04N19/194
摘要： The present invention provides methods and apparatus for improving video quality in statistical multiplexing (50). For each encoding channel in a statistical multiplexer (50), a respective bit rate need parameter is calculated for encoding (40) of a current frame. in that encoding channel. A video buffering verifier level (VBV, 20) available to each encoding channel is also calculated. detennining whether the VBV Fullness (20) available to each encoding channel is sufficient for encoding the current frame of that channel based on an initial complexity estimate for that current frame. Scale the parameter by an adaptive panic multiplier if the VBV Fullness to be insufficient and encod the current frame using the scaled parameter.
摘要翻译：本发明提供了一种提高统计复用视频质量的方法和装置（50）。对于统计多路复用器（50）中的每个编码信道，为当前帧的编码（40）计算出相应的比特率需求参数。在编码通道。还计算对每个编码信道可用的视频缓冲验证器级（VBV，20）。确定每个编码信道可用的VBV Fullness（20）是否足以根据该当前帧的初始复杂度估计对该信道的当前帧进行编码。如果VBV Fullness不足并使用缩放参数编入当前帧，则通过自适应紧急乘数缩放参数。

9. 发明申请

WO2013040283A1 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：WO2013040283A1
公开(公告)日：2013-03-21
申请号：PCT/US2012/055273
申请日：2012-09-14
申请人： GENERAL INSTRUMENT CORPORATION , NEMIROFF, Robert, S. , CHEN, Jing, Yang , LAM, Rebecca , VAN VELDHUISEN, Brenda, L. , WU, Siu-Wai
发明人： NEMIROFF, Robert, S. , CHEN, Jing, Yang , LAM, Rebecca , VAN VELDHUISEN, Brenda, L. , WU, Siu-Wai
IPC分类号： H04N21/2343 , H04N21/845 , H04N21/8547 , H04N7/26
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，并对准备的视频块文件进行解码。

10. 发明申请

WO2011130732A1 METHOD AND APPARATUS FOR DISTRIBUTION OF 3D TELEVISION PROGRAM MATERIALS 审中-公开
标题翻译：三维电视节目素材分发方法与装置
公开(公告)号：WO2011130732A1
公开(公告)日：2011-10-20
申请号：PCT/US2011/032858
申请日：2011-04-18
申请人： GENERAL INSTRUMENT CORPORATION , SCHAFFER, Mark L. , WU, Siu-Wai
发明人： SCHAFFER, Mark L. , WU, Siu-Wai
IPC分类号： H04N7/24 , H04N13/00 , H04N21/2343 , H04N21/236 , H04N21/235
CPC分类号： H04N13/161 , H04N13/194 , H04N19/597 , H04N21/2343 , H04N21/234309 , H04N21/234363 , H04N21/23608 , H04N21/2662
摘要： Method, apparatus and computer readable media for receiving a multiprogram program transport service that includes one or more compressed video services and one or more 3D-2D conversion options, generating an uncompressed video signal by performing a decoding portion of a transcoding operation for one of the one or more of the video services, determining from the 3D-2D conversion option whether a 3D-2D conversion is to be performed, performing a scale conversion on the uncompressed video according to a specified type of 3D-2D conversion, generating a compressed video service by performing an encoding portion of a transcoding operation on the uncompressed video that has been scale converted, and generating a second multiprogram program transport service that includes the compressed video signal that has been 3D-2D converted.
摘要翻译：用于接收包括一个或多个压缩视频服务和一个或多个3D-2D转换选项的多程序节目传输服务的方法，装置和计算机可读介质，通过执行解压缩操作的解码部分来生成未压缩的视频信号，一个或多个视频服务，根据3D-2D转换选项确定是否要执行3D-2D转换，根据指定类型的3D-2D转换对未压缩视频执行缩放转换，生成压缩视频通过对已经缩放转换的未压缩视频执行代码转换操作的编码部分，并且生成包括已被2D-2D转换的压缩视频信号的第二多路程序传输服务来进行服务。

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