-
公开(公告)号：US08144778B2
公开(公告)日：2012-03-27
申请号：US11709665
申请日：2007-02-22
申请人： Yunwei Jia , Darryl Lee , Stanley Fok , Gheorghe Berbecel
发明人： Yunwei Jia , Darryl Lee , Stanley Fok , Gheorghe Berbecel
IPC分类号： H04N11/02
CPC分类号： G06T3/4007 , H04N7/0127 , H04N7/014
摘要： Systems and methods of motion compensated frame rate conversion are described herein. These systems and methods convert an input video sequence at a first frame rate to an output video sequence at a second frame rate through a novel motion estimation and motion vector processing stage that produces a motion field having a plurality of motion vectors that describe the movement of objects between input video frames from the perspective of an interpolated video frame. A subsequent motion compensated interpolation stage then constructs the interpolated video frame using an adaptively blended combination of a motion compensated prediction and a temporal average prediction of the pixel values from the input video frames. Motion estimation in these systems and methods is enhanced by utilizing spatial and temporal biasing on the predictions of moving objects between and within the input frames, and also by removing aberrational motion vectors from the motion field through a hierarchy of motion vector processing blocks.
摘要翻译： 本文描述了运动补偿帧速率转换的系统和方法。 这些系统和方法通过新颖的运动估计和运动矢量处理阶段将第一帧速率的输入视频序列以第二帧速率转换为输出视频序列，该运动估计和运动矢量处理级产生具有多个运动矢量的运动场，运动矢量描述运动矢量的运动， 从内插视频帧的角度看，输入视频帧之间的对象。 随后的运动补偿内插级然后使用运动补偿预测和来自输入视频帧的像素值的时间平均预测的自适应混合组合构建内插视频帧。 这些系统和方法中的运动估计通过利用对输入帧之间和之内的移动物体的预测的空间和时间偏移以及通过移动矢量处理块的层级从运动场去除像差运动矢量来增强。
-
公开(公告)号：US20080204592A1
公开(公告)日：2008-08-28
申请号：US11709665
申请日：2007-02-22
申请人： Yunwei Jia , Darryl Lee , Stanley Fok
发明人： Yunwei Jia , Darryl Lee , Stanley Fok
IPC分类号： H04N11/04
CPC分类号： G06T3/4007 , H04N7/0127 , H04N7/014
摘要： Systems and methods of motion compensated frame rate conversion are described herein. These systems and methods convert an input video sequence at a first frame rate to an output video sequence at a second frame rate through a novel motion estimation and motion vector processing stage that produces a motion field having a plurality of motion vectors that describe the movement of objects between input video frames from the perspective of an interpolated video frame. A subsequent motion compensated interpolation stage then constructs the interpolated video frame using an adaptively blended combination of a motion compensated prediction and a temporal average prediction of the pixel values from the input video frames. Motion estimation in these systems and methods is enhanced by utilizing spatial and temporal biasing on the predictions of moving objects between and within the input frames, and also by removing aberrational motion vectors from the motion field through a hierarchy of motion vector processing blocks.
摘要翻译： 本文描述了运动补偿帧速率转换的系统和方法。 这些系统和方法通过新颖的运动估计和运动矢量处理阶段将第一帧速率的输入视频序列以第二帧速率转换为输出视频序列，该运动估计和运动矢量处理级产生具有多个运动矢量的运动场，运动矢量描述运动矢量的运动， 从内插视频帧的角度看，输入视频帧之间的对象。 随后的运动补偿内插级然后使用运动补偿预测和来自输入视频帧的像素值的时间平均预测的自适应混合组合构建内插视频帧。 这些系统和方法中的运动估计通过利用对输入帧之间和之内的移动物体的预测的空间和时间偏移以及通过移动矢量处理块的层级从运动场去除像差运动矢量来增强。
-
公开(公告)号：US20070296855A1
公开(公告)日：2007-12-27
申请号：US11472814
申请日：2006-06-22
申请人： Yunwei Jia , Gheorghe Berbecel
发明人： Yunwei Jia , Gheorghe Berbecel
IPC分类号： H04N7/01
CPC分类号： H04N7/0115 , H04N7/012
摘要： A methodology and structure is described for processing a video signal comprising a plurality of fields. Each of the fields of the video signal are partitioned into a plurality of regions. Statistical measurements are then performed on each field to detect a field-level temporal periodic pattern and on each region within the fields to detect a region-level temporal periodic pattern. The regions in each field are then processed using the field-level temporal periodic pattern and the region-level temporal periodic pattern.
摘要翻译： 描述了一种用于处理包括多个场的视频信号的方法和结构。 视频信号的每个场被分割成多个区域。 然后对每个场进行统计测量以检测场级时间周期性模式，并在场内的每个区域上检测区域级时间周期模式。 然后使用场级时间周期模式和区域级时间周期模式来处理每个场中的区域。
-
公开(公告)号：US08154663B2
公开(公告)日：2012-04-10
申请号：US11653521
申请日：2007-01-16
申请人： Yunwei Jia , Bonaventure Karuta
发明人： Yunwei Jia , Bonaventure Karuta
IPC分类号： H04N5/52
CPC分类号： H04N5/57 , H04N21/4318 , H04N21/44008
摘要： A method for contrast enhancement of a video signal comprises receiving a video signal frame, gathering statistics about the video signal frame, calculating the effective input dynamic range of the video signal frame, calculating the effective output dynamic range of the video signal frame, and constructing a transform to enhance the picture in the video signal frame by mapping the effective input dynamic range to the effective output dynamic range via the transform.
摘要翻译： 视频信号的对比度增强方法包括：接收视频信号帧，收集关于视频信号帧的统计，计算视频信号帧的有效输入动态范围，计算视频信号帧的有效输出动态范围，构建 通过变换将有效输入动态范围映射到有效输出动态范围，来增强视频信号帧中的图像的变换。
-
公开(公告)号：US07705913B2
公开(公告)日：2010-04-27
申请号：US11314631
申请日：2005-12-20
申请人： Yunwei Jia , Lowell L. Winger
发明人： Yunwei Jia , Lowell L. Winger
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。
-
公开(公告)号：US07593465B2
公开(公告)日：2009-09-22
申请号：US10950703
申请日：2004-09-27
申请人： Yunwei Jia , Lowell L. Winger
发明人： Yunwei Jia , Lowell L. Winger
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。
-
公开(公告)号：US07362376B2
公开(公告)日：2008-04-22
申请号：US10744693
申请日：2003-12-23
申请人： Lowell L. Winger , Yunwei Jia , Aaron G. Wells , Elliot N. Linzer , Simon Booth , Guy Cote
发明人： Lowell L. Winger , Yunwei Jia , Aaron G. Wells , Elliot N. Linzer , Simon Booth , Guy Cote
CPC分类号： H04N7/012 , H04N5/142 , H04N7/0135 , H04N7/0142
摘要： A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) generating a plurality of primary scores by searching along a plurality of primary angles for an edge in the picture proximate a location interlaced with a field of the picture, (B) generating a plurality of neighbor scores by searching for the edge along a plurality of neighbor angles proximate a particular angle of the primary angles corresponding to a particular score of the primary scores having a best value and (C) identifying a best score from a group of scores consisting of the particular score and the neighbor scores to generate an interpolated sample at the location.
摘要翻译： 公开了一种用于去隔行扫描图像的方法。 该方法通常包括以下步骤：（A）通过沿图像中的边缘邻近的图像的边缘沿多个主角度搜索生成多个主分数，（B）生成多个相邻分数 通过搜索沿着与具有最佳值的主分数的特定分数相对应的主角度的特定角度的多个相邻角度的边缘，以及（C）从由特定分数组成的分数组中识别最佳分数 和邻居得分，以在该位置生成内插样本。
-
公开(公告)号：US20070139552A1
公开(公告)日：2007-06-21
申请号：US11314631
申请日：2005-12-20
申请人： Yunwei Jia , Lowell Winger
发明人： Yunwei Jia , Lowell Winger
CPC分类号： H04N7/0115
摘要： A method for inverse telecine. The method generally includes the steps of (A) checking if a current field of a plurality of fields in a video sequence repeats in the video sequence according to a pattern-based approach where the current field fits a telecine pattern, (B) checking if the current field repeats according to a first pattern-less approach where the current field complies with at least one of a plurality of rules and (C) generating a signal for an encoder in (i) an asserted state if the current field repeats and (ii) a deasserted state if the current field does not repeat.
摘要翻译： 一种反向电视电影的方法。 该方法通常包括以下步骤：（A）根据基于模式的方法检查视频序列中的多个场的当前场是否在视频序列中重复，其中当前场适合电视电影图案，（B）检查是否 当前场根据第一无模式方法重复，其中当前场符合多个规则中的至少一个，并且（C）生成用于编码器的信号，其中（i）当前场重复的有效状态和（ ii）如果当前字段不重复，则为无效状态。
-
公开(公告)号：US20060244868A1
公开(公告)日：2006-11-02
申请号：US11115463
申请日：2005-04-27
申请人： Yunwei Jia , Lowell Winger
发明人： Yunwei Jia , Lowell Winger
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。
-
公开(公告)号：US08331458B2
公开(公告)日：2012-12-11
申请号：US12778422
申请日：2010-05-12
申请人： Yunwei Jia , Lowell L. Winger
发明人： Yunwei Jia , Lowell L. Winger
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。
-
-
-
-
-
-
-
-
-
搜索结果
40 条记录 (耗时 0.023 秒)
