SYSTEMS AND METHODS FOR VISUAL SIGNAL EXTRAPOLATION OR INTERPOLATION
    31.
    发明申请
    SYSTEMS AND METHODS FOR VISUAL SIGNAL EXTRAPOLATION OR INTERPOLATION 失效
    用于视觉信号提取或插值的系统和方法

    公开(公告)号:US20110164682A1

    公开(公告)日:2011-07-07

    申请号:US13046264

    申请日:2011-03-11

    IPC分类号: H04N7/12

    摘要: The present invention relates to computer-based systems and methods for visual signal extrapolation or interpolation based on statistic similarity estimation. Specifically, a first and a second reference pictures are provided, and motion estimation is conducted on the first and second reference pictures to generate motion vectors indicative of movement of at least one of the first and second reference pictures in relation to the other. Subsequently, an estimate picture is generated by extrapolation or interpolation from the first and/or the second reference picture using the motion vectors, followed by optional refinement of the estimate picture. Statistic similarity estimation is used either in motion estimation or in refining the estimate picture, or a combination of both, so as to provide improved visual signals.

    摘要翻译: 本发明涉及基于计算机的系统和方法,用于基于统计相似度估计的视觉信号外插或插值。 具体地,提供第一和第二参考图片,并且对第一和第二参考图片进行运动估计,以产生指示第一和第二参考图片中的至少一个相对于另一参考图片的移动的运动矢量。 随后,使用运动矢量从第一参考图像和/或第二参考图像进行外推或内插生成估计图像,随后可选地细化估计图像。 统计学相似度估计用于运动估计或精简估计图像,或两者的组合,以便提供改进的视觉信号。

    Method and system for non-linear motion estimation
    32.
    发明授权
    Method and system for non-linear motion estimation 失效
    非线性运动估计方法与系统

    公开(公告)号:US07916791B2

    公开(公告)日:2011-03-29

    申请号:US11453915

    申请日:2006-06-16

    申请人: Ligang Lu

    发明人: Ligang Lu

    IPC分类号: H04N7/12

    摘要: A method and system for extrapolating and interpolating a visual signal including determining a first motion vector between a first pixel position in a first image to a second pixel position in a second image, determining a second motion vector between the second pixel position in the second image and a third pixel position in a third image, determining a third motion vector between one of the first pixel position in the first image and the second pixel position in the second image, and the second pixel position in the second image and the third pixel position in the third image using a non-linear model, determining a position of the fourth pixel in a fourth image based upon the third motion vector.

    摘要翻译: 一种用于外插和内插视觉信号的方法和系统,包括确定第一图像中的第一像素位置与第二图像中的第二像素位置之间的第一运动矢量,确定第二图像中的第二像素位置之间的第二运动矢量 以及第三图像中的第三像素位置,确定第一图像中的第一像素位置和第二图像中的第二像素位置之间的第三像素位置与第二像素和第三像素位置中的第二像素位置之间的第三运动矢量 在使用非线性模型的第三图像中,基于第三运动矢量确定第四图像中的第四像素的位置。

    Power-aware on-chip memory management for video coding algorithms
    33.
    发明授权
    Power-aware on-chip memory management for video coding algorithms 有权
    用于视频编码算法的功率感知片上存储器管理

    公开(公告)号:US07715479B2

    公开(公告)日:2010-05-11

    申请号:US10624428

    申请日:2003-07-21

    IPC分类号: H04N7/12 H04N11/02 H04N11/04

    摘要: A decoding power aware encoding method for generating a predictively encoded data stream, in which predictions, that result in a reduction in the amount of data transferred from the secondary memory to primary memory during the decoding process, are favored, said method for favoring certain predictions comprising: a model for transfer of data from secondary memory to primary memory in the decoding process; a scheme for weighting the relative merits of favoring a certain prediction and the associated loss in compression gain; and based on said weighting scheme, choosing a particular prediction from the candidates allowed by the compression scheme.

    摘要翻译: 一种用于产生预测编码的数据流的解码功率感知编码方法,其中有助于某些预测的方法,其中导致减少从辅助存储器传送到主存储器的数据的预测 包括:用于在解码过程中将数据从次要存储器传送到主存储器的模型; 用于加权有利于某种预测的相对优点和相关联的压缩增益损失的方案; 并且基于所述加权方案,从由压缩方案允许的候选中选择特定预测。

    Method and system for multiple pass video coding
    34.
    发明授权
    Method and system for multiple pass video coding 有权
    多路视频编码的方法和系统

    公开(公告)号:US07408984B2

    公开(公告)日:2008-08-05

    申请号:US10665228

    申请日:2003-09-17

    IPC分类号: H04N7/12 H04N11/02

    摘要: A real-time MPEG video coding system with information look-ahead for constant bit rate (CBR) applications, such as, for example, Video-on-Demand (VoD) over ADSL. This scheme employs two MPEG encoders. The second encoder has a buffer to delay the input by an amount of time relative to the first encoder to create a look-ahead window. In encoding, the first encoder collects the information of statistics and rate-quality characteristics. An on-line information processor then uses the collected information to derive the best coding strategy for the second encoder to encode the incoming frames in the look-ahead window. The second encoder uses the encoding parameters from the processor as the coding guide to execute the coding strategy and generate the final bitstream.

    摘要翻译: 一种实时MPEG视频编码系统,其具有针对恒定比特率(CBR)应用的信息,例如通过ADSL的视频点播(VoD)。 该方案采用两个MPEG编码器。 第二编码器具有缓冲器,用于将输入延迟相对于第一编码器的时间量以创建预览窗口。 在编码中,第一编码器收集统计信息和速率质量特征。 然后,在线信息处理器使用所收集的信息来导出用于第二编码器的最佳编码策略,以对前进窗口中的输入帧进行编码。 第二编码器使用来自处理器的编码参数作为编码指南来执行编码策略并生成最终比特流。

    METHOD AND SYSTEM FOR SIGNAL PREDICTION IN PREDICTIVE CODING
    35.
    发明申请
    METHOD AND SYSTEM FOR SIGNAL PREDICTION IN PREDICTIVE CODING 有权
    预测编码信号预测方法与系统

    公开(公告)号:US20080159390A1

    公开(公告)日:2008-07-03

    申请号:US11619560

    申请日:2007-01-03

    申请人: Ligang Lu

    发明人: Ligang Lu

    IPC分类号: H04N7/26

    摘要: A method (and system) for coding a signal includes comparing a first prediction which is based upon a previously reconstructed signal to an actual signal to determine a first prediction error, comparing a second prediction which is based upon temporal filtering to the actual signal to determine a second prediction error, and selecting one of the first prediction error and the second prediction error.

    摘要翻译: 用于编码信号的方法(和系统)包括将基于先前重建的信号的第一预测与实际信号进行比较,以确定第一预测误差,将基于时间滤波的第二预测与实际信号进行比较,以确定 第二预测误差,并且选择第一预测误差和第二预测误差中的一个。

    Method and system for multiple pass video coding
    36.
    发明申请
    Method and system for multiple pass video coding 有权
    多路视频编码的方法和系统

    公开(公告)号:US20050058200A1

    公开(公告)日:2005-03-17

    申请号:US10665228

    申请日:2003-09-17

    IPC分类号: H04N7/26 H04N7/50 H04N7/12

    摘要: A real-time MPEG video coding system with information look-ahead for constant bit rate (CBR) applications, such as, for example, Video-on-Demand (VoD) over ADSL. This scheme employs two MPEG encoders. The second encoder has a buffer to delay the input by an amount of time relative to the first encoder to create a look-ahead window. In encoding, the first encoder collects the information of statistics and rate-quality characteristics. An on-line information processor then uses the collected information to derive the best coding strategy for the second encoder to encode the incoming frames in the look-ahead window. The second encoder uses the encoding parameters from the processor as the coding guide to execute the coding strategy and generate the final bitstream.

    摘要翻译: 一种实时MPEG视频编码系统,其具有针对恒定比特率(CBR)应用的信息,例如通过ADSL的视频点播(VoD)。 该方案采用两个MPEG编码器。 第二编码器具有缓冲器,用于将输入延迟相对于第一编码器的时间量以创建预览窗口。 在编码中,第一编码器收集统计信息和速率质量特征。 然后,在线信息处理器使用所收集的信息来导出用于第二编码器的最佳编码策略,以对前进窗口中的输入帧进行编码。 第二编码器使用来自处理器的编码参数作为编码指南来执行编码策略并生成最终比特流。

    Method for video transcoding with adaptive frame rate control
    37.
    发明申请
    Method for video transcoding with adaptive frame rate control 有权
    用自适应帧速率控制进行视频转码的方法

    公开(公告)号:US20050058197A1

    公开(公告)日:2005-03-17

    申请号:US10661308

    申请日:2003-09-12

    申请人: Ligang Lu Shan Liu

    发明人: Ligang Lu Shan Liu

    IPC分类号: H04N7/12 H04N7/26

    CPC分类号: H04N19/40

    摘要: A video transcoding method is provided for transcoding a first signal stream compressed by a first coding scheme to a second signal stream compressed by a second coding scheme. The method employs an adaptive frame rate and a joint temporal-spatial rate control technique, such that the overall quality of compressed MPEG video can be significantly enhanced when the transcoding is controlled in the joint temporal (picture or frame rate) and spatial (quantization) domains. One embodiment considers transcoding from high bit rate video with larger image size (e.g. 4CIF/4SIF, CIF) coded by one coding technique, e.g., MPEG-2 to a lower bit rate video with smaller image size (e.g. CIF, QCIF) coded by the same or another coding technique, e.g., MPEG-4.

    摘要翻译: 提供了一种视频转码方法,用于将由第一编码方案压缩的第一信号流转码为由第二编码方案压缩的第二信号流。 该方法采用自适应帧速率和联合时空速率控制技术,使得当在联合时间(图像或帧速率)和空间(量化)控制中进行代码转换时,可以显着增强压缩MPEG视频的总体质量, 域名 一个实施例考虑通过一种编码技术(例如MPEG-2)将较大图像大小(例如4CIF / 4SIF,CIF)的高比特率视频代码转换为具有较小图像大小的较低比特率视频(例如,CIF,QCIF),其由 相同或另一种编码技术,例如MPEG-4。

    Power-aware on-chip memory management for video coding algorithms
    38.
    发明申请
    Power-aware on-chip memory management for video coding algorithms 有权
    用于视频编码算法的功率感知片上存储器管理

    公开(公告)号:US20050018909A1

    公开(公告)日:2005-01-27

    申请号:US10624428

    申请日:2003-07-21

    IPC分类号: G06K9/36 H04N7/26

    摘要: A decoding power aware encoding method for generating a predictively encoded data stream, in which predictions, that result in a reduction in the amount of data transferred from the secondary memory to primary memory during the decoding process, are favored, said method for favoring certain predictions comprising: a model for transfer of data from secondary memory to primary memory in the decoding process; a scheme for weighting the relative merits of favoring a certain prediction and the associated loss in compression gain; and based on said weighting scheme, choosing a particular prediction from the candidates allowed by the compression scheme.

    摘要翻译: 一种用于产生预测编码的数据流的解码功率感知编码方法,其中有助于某些预测的方法,其中导致减少从辅助存储器传送到主存储器的数据的预测 包括:用于在解码过程中将数据从次要存储器传送到主存储器的模型; 用于加权有利于某种预测的相对优点和相关联的压缩增益损失的方案; 并且基于所述加权方案,从由压缩方案允许的候选中选择特定预测。

    Method and apparatus for encoding surveillance video
    39.
    发明授权
    Method and apparatus for encoding surveillance video 有权
    编码监控视频的方法和装置

    公开(公告)号:US09426477B2

    公开(公告)日:2016-08-23

    申请号:US12712717

    申请日:2010-02-25

    摘要: Methods and apparatus are provided for encoding video, such as surveillance video. A video frame is encoded by evaluating a level of activity in video frame relative to one or more neighboring frames; encoding the video frame using an inter-coding technique if the evaluation satisfies one or more predefined inter-coding criteria, wherein said inter-coding technique is applied to said video frame without a Group of Picture structure having a maximum number of consecutive inter-coded frames; and encoding the video frame using an intra-coding technique if the evaluation satisfies one or more predefined intra-coding criteria. The evaluating step may comprise, for example, determining whether differences between the video frame and the one or more neighboring frames exceed a predefined threshold.

    摘要翻译: 提供了编码视频的方法和装置,如监视视频。 通过评估视频帧中相对于一个或多个相邻帧的活动水平来编码视频帧; 如果评估满足一个或多个预定义的帧间编码标准,则使用帧间编码技术对视频帧进行编码,其中所述帧间编码技术被应用于所述视频帧,而不具有最大数量的连续帧间编码的图像组 框架 以及如果所述评估满足一个或多个预定义的内部编码标准,则使用帧内编码技术来编码所述视频帧。 评估步骤可以包括例如确定视频帧与一个或多个相邻帧之间的差异是否超过预定阈值。

    Cost and resource utilization optimization in multiple data source transcoding
    40.
    发明授权
    Cost and resource utilization optimization in multiple data source transcoding 有权
    多数据源转码中的成本和资源利用优化

    公开(公告)号:US09369510B2

    公开(公告)日:2016-06-14

    申请号:US12504074

    申请日:2009-07-16

    IPC分类号: H04L29/06

    CPC分类号: H04L65/605 H04L65/60

    摘要: A plurality of input data streams, from a plurality of data sources, are identified. The input data streams are in a plurality of different formats. For each of the input data streams, one of a plurality of transcoders is selected, to obtain a transcoding plan. Each of the plurality of transcoders has an associated transcoding cost. A potential output for each of the plurality of transcoders has an associated storage cost, and the selecting step includes jointly reducing the overall cost, subject to appropriate constraints. The method can be employed, for example, for designing a new system or efficiently utilizing an existing system. The plurality of streams can be transcoded in accordance with the plan.

    摘要翻译: 识别来自多个数据源的多个输入数据流。 输入数据流是多种不同的格式。 对于每个输入数据流,选择多个代码转换器之一,以获得代码转换计划。 多个代码转换器中的每一个具有相关联的转码成本。 多个代码转换器中的每一个的潜在输出具有相关联的存储成本,并且选择步骤包括在适当的约束条件下共同降低总体成本。 该方法可以用于例如设计新系统或有效利用现有系统。 可以根据计划对多个流进行代码转换。