公开(公告)号：US09237366B2

公开(公告)日：2016-01-12

申请号：US12761822

申请日：2010-04-16

Applicant: Mark L. Schaffer ,  Siu-Wai Wu

Inventor： Mark L. Schaffer ,  Siu-Wai Wu

IPC: H04N13/00 ,  H04N21/2662 ,  H04N21/2343 ,  H04N21/236 ,  H04N19/597

CPC classification number: H04N13/161 ,  H04N13/194 ,  H04N19/597 ,  H04N21/2343 ,  H04N21/234309 ,  H04N21/234363 ,  H04N21/23608 ,  H04N21/2662

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110254917A1

公开(公告)日：2011-10-20

申请号：US12761822

申请日：2010-04-16

Applicant: Mark L. Schaffer ,  Siu-Wai Wu

Inventor： Mark L. Schaffer ,  Siu-Wai Wu

IPC: H04N13/00

CPC classification number: H04N13/161 ,  H04N13/194 ,  H04N19/597 ,  H04N21/2343 ,  H04N21/234309 ,  H04N21/234363 ,  H04N21/23608 ,  H04N21/2662

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110119064A1

公开(公告)日：2011-05-19

申请号：US12620762

申请日：2009-11-18

Applicant: Robert S. Nemiroff ,  Jing Yang Chen ,  Siu-Wai Wu

Inventor： Robert S. Nemiroff ,  Jing Yang Chen ,  Siu-Wai Wu

IPC: G10L19/00

CPC classification number: G10L19/24 ,  G10L19/167 ,  H04N21/4341 ,  H04N21/4394

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07675970B2

公开(公告)日：2010-03-09

申请号：US10755429

申请日：2004-01-12

Applicant: Robert S. Nemiroff ,  Siu-Wai Wu

Inventor： Robert S. Nemiroff ,  Siu-Wai Wu

IPC: H04N7/26 ,  H04N7/12

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20090273716A1

公开(公告)日：2009-11-05

申请号：US12112440

申请日：2008-04-30

Applicant: Siu-Wai Wu

Inventor： Siu-Wai Wu

IPC: H04N5/00 ,  H04N11/02

CPC classification number: H04N19/117 ,  H04N19/80 ,  H04N19/86

Abstract: A method and encoding system for reducing artifacts in a digital video sequence of image frames. The method acquires a current frame of the digital video sequence, and retrieves a previous frame of the digital video sequence from a frame delay. The method applies a recursive temporal filter to the current frame and the previous frame to generate a filtered frame. The method then applies a mixer to the current frame and the filtered frame to generate an output frame. The method stores the output frame in the frame delay.

Abstract translation: 一种用于减少图像帧的数字视频序列中的伪像的方法和编码系统。 该方法获取数字视频序列的当前帧，并从帧延迟中检索数字视频序列的先前帧。 该方法将递归时间滤波器应用于当前帧和前一帧以生成滤波帧。 该方法然后将混合器应用于当前帧和滤波帧以产生输出帧。 该方法将输出帧存储在帧延迟中。

公开(公告)号：US06573945B1

公开(公告)日：2003-06-03

申请号：US09481722

申请日：2000-01-12

Applicant: Siu-Wai Wu ,  Robert Nemiroff

Inventor： Siu-Wai Wu ,  Robert Nemiroff

IPC: H04N726

CPC classification number: H04N19/439 ,  H04N19/467

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US6108046A

公开(公告)日：2000-08-22

申请号：US88786

申请日：1998-06-01

Applicant: Siu-Wai Wu ,  Keming Joseph Chen ,  Erik Elstermann

Inventor： Siu-Wai Wu ,  Keming Joseph Chen ,  Erik Elstermann

IPC: H04N17/00 ,  H04N5/44 ,  H04N5/46 ,  H04N7/015 ,  H04N21/236 ,  H04N21/43 ,  H04N21/434 ,  H04N21/44

CPC classification number: H04N5/46 ,  H04N21/23602 ,  H04N21/4305 ,  H04N21/4342 ,  H04N21/44008 ,  H04N5/4401 ,  H04N7/015

Abstract: A method and apparatus for automatically detecting the format of a high-definition television (HDTV) signal at a video encoder to allow proper encoding of the signal, including progressive and interlaced scan, and specific pixel and vertical line resolutions. The system is compatible with video standards such as the SMPTE and MPEG-2 standards. A video sample clock is determined by phase-locking clock pulses in a video signal to one of two or more available reference clocks. An SAV/EAV counter and pixel sample counter determine the horizontal resolution of the video, e.g., pixels per line. The system discriminates between 24 frames per second video and 30 frames per second video, and between a 720 line progressive scan signal and a 1080 line interlaced scan signal, for example. The system uses PLLs for each reference clock, where a lock range of the PLLs is narrow such that two PLLs will not lock at the same time for one input frequency. F bits in the video signal are used if required to distinguish progressive scan from interlaced scan.

Abstract translation: 一种用于在视频编码器处自动检测高分辨率电视（HDTV）信号的格式以允许对包括渐进和隔行扫描以及特定像素和垂直线分辨率的信号进行适当编码的方法和装置。 该系统与SMPTE和MPEG-2标准等视频标准兼容。 通过将视频信号中的时钟脉冲相位锁定到两个或多个可用参考时钟之一来确定视频采样时钟。 SAV / EAV计数器和像素采样计数器确定视频的水平分辨率，例如，每行像素。 该系统例如在24帧每秒视频和30帧每秒视频以及720行逐行扫描信号和1080行隔行扫描信号之间进行区分。 该系统为每个参考时钟使用PLL，其中PLL的锁定范围较窄，使得两个PLL在一个输入频率下不会同时锁定。 如果需要区分逐行扫描和隔行扫描，则使用视频信号中的F位。

公开(公告)号：US11677938B2

公开(公告)日：2023-06-13

申请号：US12112440

申请日：2008-04-30

Applicant: Siu-Wai Wu

Inventor： Siu-Wai Wu

IPC: H04N19/117 ,  H04N19/80 ,  H04N19/86

CPC classification number: H04N19/117 ,  H04N19/80 ,  H04N19/86

Abstract: A method and encoding system for reducing artifacts in a digital video sequence of image frames. The method acquires a current frame of the digital video sequence, and retrieves a previous frame of the digital video sequence from a frame delay. The method applies a recursive temporal filter to the current frame and the previous frame to generate a filtered frame. The method then applies a mixer to the current frame and the filtered frame to generate an output frame. The method stores the output frame in the frame delay.

公开(公告)号：US20130064308A1

公开(公告)日：2013-03-14

申请号：US13232557

申请日：2011-09-14

Applicant: Robert S. Nemiroff ,  Jing Yang Chen ,  Rebecca Lam ,  Brenda L. Van Veldhuisen ,  Siu-Wai Wu

Inventor： Robert S. Nemiroff ,  Jing Yang Chen ,  Rebecca Lam ,  Brenda L. Van Veldhuisen ,  Siu-Wai Wu

IPC: H04N7/54

CPC classification number: H04N21/23439 ,  H04N21/8456 ,  H04N21/8547

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100165194A1

公开(公告)日：2010-07-01

申请号：US12345128

申请日：2008-12-29

Applicant: Yong He ,  Siu-Wai Wu

Inventor： Yong He ,  Siu-Wai Wu

IPC: H04N7/08

CPC classification number: H04N21/4348 ,  H04N21/235 ,  H04N21/23614 ,  H04N21/2362 ,  H04N21/2383 ,  H04N21/435 ,  H04N21/8133

Abstract: A system, method, and computer readable medium for avoiding underflow of a caption buffer in a digital video encoding device. The method receives a sequence of digital video frames, and captions that correspond to the digital video frames in the sequence. The method receives first captions in a first caption carriage, and encodes the first captions, and the corresponding digital video frames, in a compressed video format. The method detects a switch from the first caption carriage to a second caption carriage, and stores second captions in the capture buffer, where each second caption is received in the second caption carriage and corresponds to one of the digital video frames in the sequence. The method examines the capture buffer and the second captions to determine whether underflow of the capture buffer is present or absent. When underflow is absent, the method encodes the second captions, and the corresponding digital video frames, in the compressed video format.

Abstract translation: 一种用于避免数字视频编码装置中字幕缓冲器下溢的系统，方法和计算机可读介质。 该方法接收数字视频帧的序列，以及与序列中的数字视频帧对应的标题。 该方法在第一字幕托架中接收第一字幕，并以压缩视频格式对第一字幕和对应的数字视频帧进行编码。 该方法检测从第一字幕托架到第二字幕托架的切换，并将第二字幕存储在捕获缓冲器中，其中每个第二标题在第二字幕托架中被接收，并且对应于序列中的数字视频帧之一。 该方法检查捕获缓冲区和第二个字幕以确定捕获缓冲区的下溢是否存在或不存在。 当不存在下溢时，该方法以压缩视频格式对第二字幕和相应的数字视频帧进行编码。