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1. 发明申请

US20060109906A1 Methods and apparatus for dynamically adjusting f-codes for a digital picture header 审中-公开
公开(公告)号：US20060109906A1
公开(公告)日：2006-05-25
申请号：US11323892
申请日：2005-12-30
申请人： Robert Nemiroff , Siu-Wai Wu
发明人： Robert Nemiroff , Siu-Wai Wu
IPC分类号： H04N11/02 , H04N7/12 , H04N11/04 , H04B1/66
CPC分类号： H04N19/517 , H04N19/196 , H04N19/463 , H04N19/51
摘要： The present invention provides methods and apparatus for dynamically adjusting f-codes for a digital picture header of a coded picture. A video encoder having at least one motion estimation stages is provided for encoding the current picture. Motion vectors are determined for one motion estimation stage of the encoder. The motion vectors are analyzed to determine a maximum motion vector range for the picture. A corresponding minimum f-code is determined for the maximum range. The minimum f-code is then inserted into the digital picture header. In this manner, the f-codes carried in the digital picture header can be reduced to the minimum required value, thus reducing the number of bits needed to encode the f-codes.

2. 发明授权

US5959693A Pixel adaptive noise reduction filter for digital video 失效
标题翻译：用于数字视频的像素自适应降噪滤波器
公开(公告)号：US5959693A
公开(公告)日：1999-09-28
申请号：US852467
申请日：1997-05-07
申请人： Siu-Wai Wu , Jay R. Patel , Robert Nemiroff , John Shumate
发明人： Siu-Wai Wu , Jay R. Patel , Robert Nemiroff , John Shumate
IPC分类号： H04N5/21
CPC分类号： H04N5/21
摘要： A current pixel of a video image is adaptively filtered to provide stronger filtering when there is a high likelihood that noise is present. Weaker filtering is provided when the presence of a color and/or brightness edge is likely in the video image. Each pixel has luminance and chrominance amplitude values. In a filtering method, a current pixel is intermediate to first and second pixels in the video frame. Difference signals are determined based on the amplitude difference between the current pixel and first and second adjacent pixels. A plurality of available filters provide successively stronger filtering of the current pixel amplitude. One of the filters is selected for filtering the current pixel according to the difference signals. Secondary difference signals which indicate the amplitude difference between the current pixel and pixels which are adjacent to the first and second pixels are also considered in the selection process. The selection process may further be biased by a user-selectable control word. The scheme may also provide temporal filtering with successive video frames or images. Filtering with pixel interpolation may also be used.
摘要翻译：当存在噪声的可能性高时，视频图像的当前像素被自适应地滤波以提供更强的滤波。当视频图像中存在颜色和/或亮度边缘时，会提供较弱的滤镜。每个像素具有亮度和色度幅度值。在滤波方法中，当前像素在视频帧中的第一和第二像素之间。基于当前像素与第一和第二相邻像素之间的幅度差来确定差分信号。多个可用滤波器提供对当前像素幅度的连续更强的滤波。选择滤波器之一根据差分信号对当前像素进行滤波。在选择处理中也考虑了表示当前像素与与第一和第二像素相邻的像素之间的幅度差的二次差分信号。选择过程还可以被用户可选择的控制字偏置。该方案还可以提供具有连续视频帧或图像的时间滤波。也可以使用像素插值进行滤波。

3. 发明授权

US06573945B1 Logo insertion on an HDTV encoder 有权
标题翻译：标识插入HDTV编码器
公开(公告)号：US06573945B1
公开(公告)日：2003-06-03
申请号：US09481722
申请日：2000-01-12
申请人： Siu-Wai Wu , Robert Nemiroff
发明人： Siu-Wai Wu , Robert Nemiroff
IPC分类号： H04N726
CPC分类号： H04N19/439 , H04N19/467
摘要： An encoder and encoding method for inserting logos into a digital television signal. The logo insertion is performed at the front end of the encoder (e.g., prior to compression) by sharing the video capture frame buffer of the encoder, so there is no need for a separate logo inserter with a separate buffer, and encoding cost are reduced. An alpha blending function receives logo image and logo alpha map data for blending with input video data. The input video is retrieved from the frame buffer, and written back to the frame buffer after blending with the logo data. Subsequently, the frame buffer contents are provided to a pre-processing function for filtering and film mode detection. For a film mode frame, a drop field decision is provided from the pre-processing function to the frame buffer to drop the redundant field. The pre-processed video data is then provided for conventional compression processing. In an HDTV embodiment, several compressors are provided which each receive a panel of a video frame.
摘要翻译：一种将标志插入数字电视信号的编码器和编码方法。通过共享编码器的视频捕获帧缓冲器，在编码器的前端（例如，在压缩之前）执行徽标插入，因此不需要具有单独的缓冲器的单独的标识插入器，并且编码成本降低。阿尔法混合功能接收标志图像和标志阿尔法地图数据，用于与输入视频数据混合。从帧缓冲器检索输入视频，并在与标识数据混合后将其写回帧缓冲区。随后，将帧缓冲器内容提供给用于滤波和胶片模式检测的预处理功能。对于电影模式帧，从预处理功能向帧缓冲器提供丢弃场决定以丢弃冗余字段。然后提供预处理的视频数据用于常规压缩处理。在HDTV实施例中，提供了几个压缩机，每个压缩机都接收视频帧的面板。

4. 发明申请

US20050094965A1 Methods and apparatus to improve the rate control during splice transitions 审中-公开
标题翻译：在接头转换期间提高速率控制的方法和装置
公开(公告)号：US20050094965A1
公开(公告)日：2005-05-05
申请号：US10935694
申请日：2004-09-07
申请人： Jing Chen , Robert Nemiroff , Siu-Wai Wu
发明人： Jing Chen , Robert Nemiroff , Siu-Wai Wu
IPC分类号： H04N7/24 , H04N9/74
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

US20050041689A1 Statistical remultiplexing with bandwidth allocation among different transcoding channels 审中-公开
标题翻译：在不同代码转换通道之间进行带宽分配的统计重新复用
公开(公告)号：US20050041689A1
公开(公告)日：2005-02-24
申请号：US10945641
申请日：2004-09-20
申请人： Siu-Wai Wu , Robert Nemiroff , Vincent Liu , Ajay Luthra
发明人： Siu-Wai Wu , Robert Nemiroff , Vincent Liu , Ajay Luthra
IPC分类号： H04N7/26 , H04N7/50 , H04N21/236 , H04N21/2365 , H04L12/54 , H04J3/18
CPC分类号： H04N21/23608 , H04N19/115 , H04N19/126 , H04N19/15 , H04N19/152 , H04N19/176 , H04N19/196 , H04N19/197 , H04N19/40 , H04N19/61 , H04N21/23655
摘要： An efficient statistical remultiplexer for processing a number of channels that include video data. In one aspect, transcoding of the video data is delayed while statistical information is obtained from the data. Bit rate need parameters for the data are determined based on the statistical information, and the video data is transcoded based on the respective bit rate need parameters following the delay. In another aspect, a transcoding bit rate for video frames is updated a plurality of times at successive intervals to allow a closer monitoring of the bit rate. Minimum and maximum bounds for the transcoding bit rate, e.g., for buffer overflow and underflow protection, are also updated in each interval.
摘要翻译：一种用于处理包括视频数据的多个信道的有效统计再分集器。在一个方面，视频数据的代码转换被延迟，同时从数据中获得统计信息。基于统计信息确定数据的比特率需要参数，并且根据延迟后的各个比特率需求参数对视频数据进行代码转换。在另一方面，视频帧的代码转换比特率以连续的间隔多次更新，以允许更仔细地监视比特率。代码转换比特率的最小和最大限制，例如用于缓冲区溢出和下溢保护，也在每个间隔中被更新。

6. 发明申请

US20050152449A1 Method and apparatus for processing a bitstream in a digital video transcoder 有权
标题翻译：用于处理数字视频代码转换器中的位流的方法和装置
公开(公告)号：US20050152449A1
公开(公告)日：2005-07-14
申请号：US10755429
申请日：2004-01-12
申请人： Robert Nemiroff , Siu-Wai Wu
发明人： Robert Nemiroff , Siu-Wai Wu
IPC分类号： H04N7/12 , H04N7/26 , H04N7/50
CPC分类号： H04N19/198 , H04N19/115 , H04N19/124 , H04N19/137 , H04N19/14 , H04N19/142 , H04N19/15 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/40 , H04N19/48 , H04N19/61
摘要： A method and apparatus for processing a bitstream in a digital video transcoder is described. In one example, an adjustment factor is determined that relates a number of bits representing a selected frame defined by the bitstream to a target number of bits for the selected frame. An average spatial activity value among sets of video data is associated with the selected frame. A spatial activity value for a selected set of the sets of video data is determined. A normalized spatial, activity value for the selected set of frequency video data is then computed in response to the average spatial activity value, the spatial activity value, and a function of the adjustment factor. Target bit reduction for each of the sets of video data may be computed using a function of the normalized spatial activity value and the adjustment factor.
摘要翻译：描述了一种在数字视频代码转换器中处理位流的方法和装置。在一个示例中，确定将表示由比特流定义的所选帧的比特数的数目与所选择的帧的目标比特数相关联的调整因子。视频数据组中的平均空间活动值与所选择的帧相关联。确定所选择的一组视频数据的空间活动值。然后响应于平均空间活动值，空间活动值和调整因子的函数来计算所选择的频率视频数据集合的归一化空间活动值。可以使用归一化空间活动值和调整因子的函数来计算每组视频数据的目标比特缩减。

7. 发明授权

US09237366B2 Method and apparatus for distribution of 3D television program materials 有权
标题翻译：分配3D电视节目素材的方法和装置
公开(公告)号：US09237366B2
公开(公告)日：2016-01-12
申请号：US12761822
申请日：2010-04-16
申请人： Mark L. Schaffer , Siu-Wai Wu
发明人： Mark L. Schaffer , Siu-Wai Wu
IPC分类号： H04N13/00 , H04N21/2662 , H04N21/2343 , H04N21/236 , H04N19/597
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，并且生成包括已经被2D-2D转换的压缩视频信号的第二多路程序节目传输服务来进行服务。

8. 发明申请

US20110254917A1 METHOD AND APPARATUS FOR DISTRIBUTION OF 3D TELEVISION PROGRAM MATERIALS 有权
标题翻译：三维电视节目素材分发方法与装置
公开(公告)号：US20110254917A1
公开(公告)日：2011-10-20
申请号：US12761822
申请日：2010-04-16
申请人： Mark L. Schaffer , Siu-Wai Wu
发明人： Mark L. Schaffer , Siu-Wai Wu
IPC分类号： H04N13/00
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，并且生成包括已经被2D-2D转换的压缩视频信号的第二多路程序节目传输服务来进行服务。

9. 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。

10. 发明授权

US07675970B2 Method and apparatus for processing a bitstream in a digital video transcoder 有权
标题翻译：用于处理数字视频代码转换器中的位流的方法和装置
公开(公告)号：US07675970B2
公开(公告)日：2010-03-09
申请号：US10755429
申请日：2004-01-12
申请人： Robert S. Nemiroff , Siu-Wai Wu
发明人： Robert S. Nemiroff , Siu-Wai Wu
IPC分类号： H04N7/26 , H04N7/12
CPC分类号： H04N19/198 , H04N19/115 , H04N19/124 , H04N19/137 , H04N19/14 , H04N19/142 , H04N19/15 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/40 , H04N19/48 , H04N19/61
摘要： A method and apparatus for processing a bitstream in a digital video transcoder is described. In one example, an adjustment factor is determined that relates a number of bits representing a selected frame defined by the bitstream to a target number of bits for the selected frame. An average spatial activity value among sets of video data is associated with the selected frame. A spatial activity value for a selected set of the sets of video data is determined. A normalized spatial, activity value for the selected set of frequency video data is then computed in response to the average spatial activity value, the spatial activity value, and a function of the adjustment factor. Target bit reduction for each of the sets of video data may be computed using a function of the normalized spatial activity value and the adjustment factor.
摘要翻译：描述了一种在数字视频代码转换器中处理位流的方法和装置。在一个示例中，确定将表示由比特流定义的所选帧的比特数的数目与所选择的帧的目标比特数相关联的调整因子。视频数据组中的平均空间活动值与所选择的帧相关联。确定所选择的一组视频数据的空间活动值。然后响应于平均空间活动值，空间活动值和调整因子的函数来计算所选择的频率视频数据集合的归一化空间活动值。可以使用归一化空间活动值和调整因子的函数来计算每组视频数据的目标比特缩减。

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