Programmable quantization dead zone and threshold for standard-based H.264 and/or VC1 video encoding
    11.
    发明授权
    Programmable quantization dead zone and threshold for standard-based H.264 and/or VC1 video encoding 有权
    基于标准的H.264和/或VC1视频编码的可编程量化死区和阈值

    公开(公告)号:US07620103B2

    公开(公告)日:2009-11-17

    申请号:US11010029

    申请日:2004-12-10

    IPC分类号: H04N7/30 H04N7/50

    摘要: A video encoder is disclosed that includes an encoder circuit, a quantizer circuit and a control circuit. The encoder circuit may be configured to generate a number of coefficient values in response to a video stream and a number of quantized values. The quantizer circuit may be configured to generate the number of quantized values in response to the coefficient values, two or more quantization dead zones and two or more offsets. The control circuit may be configured to set the two or more quantization dead zones and the two or more offsets to different values. The two or more quantization dead zones and the two or more offsets are independently programmable.

    摘要翻译: 公开了包括编码器电路,量化器电路和控制电路的视频编码器。 编码器电路可以被配置为响应于视频流和多个量化值而生成多个系数值。 量化器电路可以被配置为响应于系数值,两个或更多个量化死区和两个或更多个偏移量而产生量化值的数量。 控制电路可以被配置为将两个或更多个量化死区和两个或更多个偏移设置为不同的值。 两个或多个量化死区和两个或更多个偏移是可独立编程的。

    PROGRAMMABLE QUANTIZATION DEAD ZONE AND THRESHOLD FOR STANDARD-BASED H.264 AND/OR VC1 VIDEO ENCODING
    14.
    发明申请
    PROGRAMMABLE QUANTIZATION DEAD ZONE AND THRESHOLD FOR STANDARD-BASED H.264 AND/OR VC1 VIDEO ENCODING 审中-公开
    可编程定量死区和基于标准的H.264和/或VC1视频编码的阈值

    公开(公告)号:US20100061449A1

    公开(公告)日:2010-03-11

    申请号:US12568878

    申请日:2009-09-29

    IPC分类号: H04N7/26

    摘要: A video encoder including an encoder circuit, a quantizer circuit and a control circuit. The encoder circuit may be configured to generate a plurality of coefficient values and motion vectors in response to a video stream, a first control signal, a second control signal, and a number of quantized values. The control circuit may be configured to (i) generate the first control signal, the second control signal, and a quantizer index signal and (ii) set two or more quantization dead zones and two or more offsets to different values, where the quantization dead zones and the offsets are independently programmable. The quantizer circuit may be configured to generate the number of quantized values in response to the coefficient values, the quantizer index signal, the two or more quantization dead zones and the two or more offsets. A first coefficient value may be quantized using a first quantization dead zone and a first offset. A second coefficient value may be quantized using a second quantization dead zone and a second offset. The first and second quantization dead zones generally have different values. The first and second offsets generally have different values. Quantization calculations determining each quantized value take into account respective quantization dead zones and offsets.

    摘要翻译: 一种视频编码器,包括编码器电路,量化器电路和控制电路。 编码器电路可以被配置为响应于视频流,第一控制信号,第二控制信号和多个量化值而产生多个系数值和运动矢量。 控制电路可以被配置为:(i)产生第一控制信号,第二控制信号和量化器索引信号,以及(ii)将两个或多个量化死区和两个或更多个偏移设置为不同的值,其中量化死区 区域和偏移量是独立可编程的。 量化器电路可以被配置为响应于系数值,量化器索引信号,两个或更多个量化死区和两个或更多个偏移量来生成量化值的数量。 可以使用第一量化死区和第一偏移来量化第一系数值。 可以使用第二量化死区和第二偏移来量化第二系数值。 第一和第二量化死区通常具有不同的值。 第一和第二偏移量通常具有不同的值。 确定每个量化值的量化计算考虑了相应的量化死区和偏移量。

    Unified approach to film mode detection
    15.
    发明授权
    Unified approach to film mode detection 有权
    电影模式检测的统一方法

    公开(公告)号:US07705913B2

    公开(公告)日:2010-04-27

    申请号:US11314631

    申请日:2005-12-20

    IPC分类号: H04N11/20 H04N7/01 H04N5/14

    CPC分类号: H04N7/0115

    摘要: A method for film mode detection is disclosed. The method generally includes the steps of (A) detecting if a plurality of fields in a video signal are in a 3:2 pull-down pattern to control a plurality of first flags based on a plurality of statistics gathered from the fields, (B) detecting if the fields contain moving interlaced text to control a second flag based on both (i) the statistics and (ii) a repeat-field flag of the first flags that indicates repeating consecutive same polarity fields and (C) deciding among a plurality of inverse telecine processes to de-interlace the fields based on all of (i) a 3:2 mode flag of the first flags, (ii) a 3:2 direction flag of the first flags and (iii) the second flag.

    摘要翻译: 公开了一种胶片模式检测方法。 该方法通常包括以下步骤:(A)检测视频信号中的多个场是否处于3:2下拉模式,以便根据从场中收集的多个统计信息来控制多个第一标志(B )检测字段是否包含移动隔行文本以基于(i)统计信息和(ii)指示重复连续相同极性字段的第一标志的重复字段标志来控制第二标志,以及(C)多个 (i)第一标志的3:2模式标志,(ii)第一标志的3:2方向标志和(iii)第二标志的逆电泳电影过程以去交错字段。

    Method for video coding artifacts concealment
    16.
    发明授权
    Method for video coding artifacts concealment 有权
    视频编码伪影隐藏方法

    公开(公告)号:US07593465B2

    公开(公告)日:2009-09-22

    申请号:US10950703

    申请日:2004-09-27

    IPC分类号: H04N7/12 H04N5/217

    CPC分类号: H04N19/90

    摘要: A method and circuit for processing a reconstructed picture generated from compressed data is disclosed. The method generally includes the steps of (A) estimating a magnitude of coding artifacts created by a coding process for the compressed data based upon the compressed data, (B) generating a plurality of noise samples with a probability distribution over a range, the probability distribution determined by the magnitude and (C) adding the noise samples to the reconstructed picture for concealment of the coding artifacts.

    摘要翻译: 公开了一种用于处理从压缩数据生成的重构图像的方法和电路。 该方法通常包括以下步骤:(A)基于压缩数据估计由压缩数据的编码处理产生的编码伪影的大小,(B)产生具有在范围上的概率分布的多个噪声样本,概率 分布由幅度确定,(C)将噪声样本添加到重建图像中以隐藏编码伪像。

    METHOD FOR COMPOSITE VIDEO ARTIFACTS REDUCTION
    17.
    发明申请
    METHOD FOR COMPOSITE VIDEO ARTIFACTS REDUCTION 有权
    复合视像制品减少方法

    公开(公告)号:US20100220235A1

    公开(公告)日:2010-09-02

    申请号:US12778422

    申请日:2010-05-12

    IPC分类号: H04N5/217

    CPC分类号: H04N5/21 H04N5/145 H04N9/646

    摘要: A method for composite noise filtering is disclosed. The method generally includes the steps of (A) generating a selection value in response to a stationary check identifying one of a plurality of blendings for a current item of a current field, (B) generating a filtered item in response to one of (i) a first of the blendings between the current item and a first previous item co-located in a first previous field having an opposite phase of composite artifacts from the current field and (ii) a second of the blendings between the current item and a first motion compensated item from the first previous field and (C) switching between the first blending and the second blending in response to the selection value.

    摘要翻译: 公开了一种复合噪声滤波方法。 该方法通常包括以下步骤:(A)响应于识别当前场的当前项目的多个混合中的一个的固定检查来生成选择值,(B)响应于(i )当前项目和第一先前项目之间的第一个混合中的第一个,共同位于具有与当前场的复合人造物相反的第一先前场中,以及(ii)当前项目和第一 运动补偿项目,以及(C)响应于选择值在第一混合和第二混合之间切换。

    Method and apparatus for video and image deinterlacing and format conversion
    18.
    发明授权
    Method and apparatus for video and image deinterlacing and format conversion 有权
    视频和图像去隔行和格式转换的方法和装置

    公开(公告)号:US07170561B2

    公开(公告)日:2007-01-30

    申请号:US10727476

    申请日:2003-12-04

    IPC分类号: H04N7/01

    CPC分类号: H04N5/142 H04N7/012

    摘要: A method and apparatus for deinterlacing a picture is disclosed. The method generally includes the steps of (A) calculating a plurality of differences among a plurality of current samples from a current field of the picture, the differences being calculated along a plurality of line segments at a plurality of angles proximate a particular position between two field lines from the current filed, (B) generating a first sample at the particular position by vertical filtering the current field in response to the differences indicating that the particular position is a non-edge position in the picture and (C) generating a second sample at the particular position by directional filtering the current field in response to the differences indicating that the particular position is an edge position in the picture.

    摘要翻译: 公开了一种用于去隔行扫描图像的方法和装置。 该方法通常包括以下步骤:(A)从图像的当前场计算多个当前样本之间的多个差异,所述差异沿多个线段以接近两个特定位置之间的多个角度被计算 (B)响应于指示特定位置是图像中的非边缘位置的差异,通过对当前场进行垂直滤波来产生在特定位置处的第一样本,(C)产生第二样本, 响应于指示特定位置是图像中的边缘位置的差异,通过对当前场进行定向滤波来在特定位置处采样。

    Method for composite video artifacts reduction
    19.
    发明授权
    Method for composite video artifacts reduction 有权
    复合视频文物减少方法

    公开(公告)号:US08331458B2

    公开(公告)日:2012-12-11

    申请号:US12778422

    申请日:2010-05-12

    CPC分类号: H04N5/21 H04N5/145 H04N9/646

    摘要: A method for composite noise filtering is disclosed. The method generally includes the steps of (A) generating a selection value in response to a stationary check identifying one of a plurality of blendings for a current item of a current field, (B) generating a filtered item in response to one of (i) a first of the blendings between the current item and a first previous item co-located in a first previous field having an opposite phase of composite artifacts from the current field and (ii) a second of the blendings between the current item and a first motion compensated item from the first previous field and (C) switching between the first blending and the second blending in response to the selection value.

    摘要翻译: 公开了一种复合噪声滤波方法。 该方法通常包括以下步骤:(A)响应于识别当前场的当前项目的多个混合中的一个的固定检查来生成选择值,(B)响应于(i )当前项目和第一先前项目之间的第一个混合中的第一个,共同位于具有与当前场的复合人造物相反的第一先前场中,以及(ii)当前项目和第一 运动补偿项目,以及(C)响应于选择值在第一混合和第二混合之间切换。

    Method for composite video artifacts reduction
    20.
    发明授权
    Method for composite video artifacts reduction 失效
    复合视频文物减少方法

    公开(公告)号:US07751484B2

    公开(公告)日:2010-07-06

    申请号:US11115463

    申请日:2005-04-27

    IPC分类号: H04N7/64 H04N7/68 H04N7/36

    CPC分类号: H04N5/21 H04N5/145 H04N9/646

    摘要: A method for composite noise filtering is disclosed. The method generally includes the steps of (A) generating a selection value in response to a stationary check identifying one of a plurality of blendings for a current item of a current field, (B) generating a filtered item in response to one of (i) a first of the blendings between the current item and a first previous item co-located in a first previous field having an opposite phase of composite artifacts from the current field and (ii) a second of the blendings between the current item and a first motion compensated item from the first previous field and (C) switching between the first blending and the second blending in response to the selection value.

    摘要翻译: 公开了一种复合噪声滤波方法。 该方法通常包括以下步骤:(A)响应于识别当前场的当前项目的多个混合中的一个的固定检查来生成选择值,(B)响应于(i )当前项目和第一先前项目之间的第一个混合中的第一个,共同位于具有与当前场的复合人造物相反的第一先前场中,以及(ii)当前项目和第一个 运动补偿项目,以及(C)响应于选择值在第一混合和第二混合之间切换。