公开(公告)号：US20130003872A1

公开(公告)日：2013-01-03

申请号：US13545930

申请日：2012-07-10

Applicant: José Roberto Alvarez ,  Lulin Chen ,  Alexandros Michael Tourapis

Inventor： José Roberto Alvarez ,  Lulin Chen ,  Alexandros Michael Tourapis

IPC: H04N7/26

CPC classification number: H04N19/86 ,  G06T5/002 ,  H04N19/117 ,  H04N19/137 ,  H04N19/14 ,  H04N19/172 ,  H04N19/61 ,  H04N19/615 ,  H04N19/80

Abstract: A method, system and device are provided for pre-filtering device for filtering a video signal prior to digitally encoding. The method includes receiving at least one input picture and at least one reconstructed picture from an encoding process and performing an in-loop temporal filtering process using at least one input picture and at least one reconstructed picture from an encoding process to output a pre-filtered video signal for use in an encoding process. The result is enabling an encoding process to produce an output with increased temporal correlation between adjacent pictures regardless of the coding type, since the artifacts introduced by the encoding process are also considered by the process.

Abstract translation: 提供了一种用于在进行数字编码之前对视频信号进行滤波的预过滤装置的方法，系统和装置。 该方法包括从编码处理接收至少一个输入图像和至少一个重构图像，并且使用至少一个输入图像和至少一个来自编码处理的重构图像执行循环时间滤波处理，以输出预滤波 视频信号用于编码过程。 结果是，由于编码处理引入的伪像也被该过程考虑，所以能够使编码处理产生具有增加的相邻图像之间的时间相关性的输出，而不管编码类型如何。

公开(公告)号：US07269220B2

公开(公告)日：2007-09-11

申请号：US10196701

申请日：2002-07-16

Applicant: José Roberto Alvarez

Inventor： José Roberto Alvarez

IPC: H04B1/66

CPC classification number: H04N5/144 ,  G06T7/254 ,  H04N5/21

Abstract: A motion detector (300) detects motion of images represented by video pixels by providing a memory (19) arranged to store first pixels processed during a first time period. The motion detector (300) responds to differences between the first pixels and second pixels processed during a second time period after the first time period to generate initial motion signals. A look up table (362) and an edge detector (364) modify the initial motion signals to generate the output motion signals.

Abstract translation: 运动检测器（300）通过提供布置成存储在第一时间段内处理的第一像素的存储器（19）来检测由视频像素表示的图像的运动。 运动检测器（300）响应在第一时间段之后的第二时间段期间处理的第一像素和第二像素之间的差异，以产生初始运动信号。 查找表（362）和边缘检测器（364）修改初始运动信号以产生输出运动信号。

公开(公告)号：US07158189B2

公开(公告)日：2007-01-02

申请号：US11153472

申请日：2005-06-15

Applicant: José Roberto Alvarez

Inventor： José Roberto Alvarez

IPC: H04N5/213 ,  H04N5/21

CPC classification number: H04N5/213

Abstract: An impulse-reducing module (200) reduces random noise in video pixels by providing an impulse detector (244) and an impulse reducer, such as a median filter (250). The impulse detector (244) generates filter control signals in response to detection of impulses, and the median filter (250) generates filtered pixel values in response to the filter control signals. The control signals set the median filter to a plurality of filter operating modes.

Abstract translation: 脉冲减少模块（200）通过提供脉冲检测器（244）和诸如中值滤波器（250）的脉冲减少器来减少视频像素中的随机噪声。 脉冲检测器（244）响应于脉冲的检测产生滤波器控制信号，并且中值滤波器（250）响应于滤波器控制信号产生滤波的像素值。 控制信号将中值滤波器设置为多个滤波器操作模式。

公开(公告)号：US09025676B2

公开(公告)日：2015-05-05

申请号：US13545930

申请日：2012-07-10

Applicant: José Roberto Alvarez ,  Lulin Chen ,  Alexandros Michael Tourapis

Inventor： José Roberto Alvarez ,  Lulin Chen ,  Alexandros Michael Tourapis

IPC: H04B1/66 ,  H04N19/86 ,  H04N19/615 ,  H04N19/80 ,  G06T5/00 ,  H04N19/172 ,  H04N19/61 ,  H04N19/117 ,  H04N19/14 ,  H04N19/137

CPC classification number: H04N19/86 ,  G06T5/002 ,  H04N19/117 ,  H04N19/137 ,  H04N19/14 ,  H04N19/172 ,  H04N19/61 ,  H04N19/615 ,  H04N19/80

Abstract: A method, system and device are provided for pre-filtering device for filtering a video signal prior to digitally encoding. The method includes receiving at least one input picture and at least one reconstructed picture from an encoding process and performing an in-loop temporal filtering process using at least one input picture and at least one reconstructed picture from an encoding process to output a pre-filtered video signal for use in an encoding process. The result is enabling an encoding process to produce an output with increased temporal correlation between adjacent pictures regardless of the coding type, since the artifacts introduced by the encoding process are also considered by the process.

Abstract translation: 提供了一种用于在进行数字编码之前对视频信号进行滤波的预过滤装置的方法，系统和装置。 该方法包括从编码处理接收至少一个输入图像和至少一个重构图像，并且使用至少一个输入图像和至少一个来自编码处理的重构图像执行循环时间滤波处理，以输出预滤波 视频信号用于编码过程。 结果是，由于编码处理引入的伪像也被该过程考虑，所以能够使编码处理产生具有增加的相邻图像之间的时间相关性的输出，而不管编码类型如何。

公开(公告)号：US06898243B1

公开(公告)日：2005-05-24

申请号：US09439920

申请日：1999-11-12

Applicant: José Roberto Alvarez

Inventor： José Roberto Alvarez

IPC: H04N5/44 ,  H04N7/01 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC classification number: H04N7/012 ,  H04N7/0137

Abstract: A video converter provides for converting an interlaced video datastream to a de-interlaced form suitable for progressive-input coding. Conversion is conducted in accordance with determined motion of image portions within the video datastream. In a preferred MPEG-1 and MPEG-2 IC pre-processor implementation, during motion processing, intra-frame and inter-frame motion analyses are conducted for a current-pixel. The resulting motion determinations are further correlated with derived and/or coding metrics and combined; the combination is also limited, smoothed and a transfer function is applied to produce a mix control. During further video processing, current-pixel data from a current field (“field data”) and corresponding filtered current frame data (“filtered frame data”) are mixed in accordance with the mix control. Resulting output preferably comprises filtered frame data for low or no determined motion, field data for high motion and motion-related mixtures of the two for remaining motion determinations.

Abstract translation: 视频转换器提供将隔行扫描视频数据流转换成适合逐行输入编码的去隔行形式。 根据视频数据流内的图像部分的确定的运动进行转换。 在优选的MPEG-1和MPEG-2 IC预处理器实现中，在运动处理期间，对当前像素进行帧内和帧间运动分析。 所得到的运动确定进一步与导出和/或编码度量相关联并组合; 该组合也受到限制，平滑，并且应用传递函数来产生混合控制。 在进一步的视频处理期间，根据混合控制混合来自当前场（“场数据”）和对应的滤波的当前帧数据（“滤波帧数据”）的当前像素数据。 所得输出优选地包括用于低或无确定运动的滤波帧数据，用于高运动的场数据和两者的运动相关混合物用于剩余运动确定。

公开(公告)号：US07826535B2

公开(公告)日：2010-11-02

申请号：US10120622

申请日：2002-04-11

Applicant: José Roberto Alvarez

Inventor： José Roberto Alvarez

IPC: H04N7/12 ,  H04N11/02

CPC classification number: H04N19/439 ,  H04N19/117 ,  H04N19/136 ,  H04N19/176 ,  H04N19/42 ,  H04N19/527 ,  H04N19/61 ,  H04N19/82

Abstract: A system (5) processes pixel data representing one of a first image compressed according to a first compression algorithm and a second image compressed according to a second compression algorithm. A pixel analyzer (32) generates first and second selection signals depending on the type of image. A processing module (40) includes first circuits arranged to process the data in response to a first selection signal and second circuits arranged to process the data in response to a second selection signal. A control processor (10) enables the first circuits in response to the first selection signal and enables the second circuits in response to the second selection signal.

Abstract translation: 系统（5）处理表示根据第一压缩算法压缩的第一图像和根据第二压缩算法压缩的第二图像之一的像素数据。 像素分析器（32）根据图像的类型产生第一和第二选择信号。 处理模块（40）包括布置成响应于第一选择信号处理数据的第一电路和布置成响应于第二选择信号处理数据的第二电路。 控制处理器（10）响应于第一选择信号使得第一电路能够响应于第二选择信号启用第二电路。

公开(公告)号：US07050501B2

公开(公告)日：2006-05-23

申请号：US10196477

申请日：2002-07-16

Applicant: José Roberto Alvarez

Inventor： José Roberto Alvarez

IPC: H04N7/12 ,  H04N5/14 ,  H04N9/64

CPC classification number: H04N5/21

Abstract: A preprocessor system (10) reduces random noise in video pixels by providing a memory (19) arranged to store first pixels processed during a first time period. A motion detector (300) responds to differences between the first pixels and second pixels processed during a second time period after the first time period to generate corrected motion signals. A first filter (100) generates first filtered values in response to the differences and the corrected motion signals. An impulse detector (244) generates control signals in response to detection of impulses, and an impulse reducer (250) generates second filtered pixel values in response to the first filtered values and the control signals.

Abstract translation: 预处理器系统（10）通过提供布置成存储在第一时间段期间处理的第一像素的存储器（19）来减少视频像素中的随机噪声。 运动检测器（300）响应在第一时间段之后的第二时间段期间处理的第一像素和第二像素之间的差异，以产生校正的运动信号。 第一滤波器（100）响应于差异和校正的运动信号产生第一滤波值。 脉冲检测器（244）响应于脉冲的检测而产生控制信号，并且脉冲减少器（250）响应于第一滤波值和控制信号产生第二滤波像素值。

公开(公告)号：US07016415B2

公开(公告)日：2006-03-21

申请号：US10196018

申请日：2002-07-16

Applicant: José Roberto Alvarez

Inventor： José Roberto Alvarez

IPC: H04N7/12

CPC classification number: G06T5/002 ,  G06T5/20 ,  G06T5/50 ,  G06T7/13 ,  G06T7/254 ,  G06T2207/10016 ,  G06T2207/20008 ,  G06T2207/20182 ,  H04N5/144 ,  H04N5/21

Abstract: A motion detector (300) detects motion of images represented by video pixels. A first motion detector (320) is arranged to generate first motion signals (S) representing detected motion of images represented by the pixel values. A second motion detector (360) is arranged to modify the first motion signals to generate corrected motion signals (S′) in response to the relationship of a pixel being processed to a change of motion of one or more of the image in the vertical direction. The second motion detector also modifies the first motion signals in response to the value of the pixel being processed.

Abstract translation: 运动检测器（300）检测由视频像素表示的图像的运动。 第一运动检测器（320）被布置成产生表示由像素值表示的图像的检测到的运动的第一运动信号（S）。 第二运动检测器（360）被布置成响应于被处理像素与垂直方向上的一个或多个图像的运动变化的关系来修改第一运动信号以产生校正的运动信号（S'） 。 第二运动检测器还响应于正在处理的像素的值来修改第一运动信号。

公开(公告)号：US06958783B2

公开(公告)日：2005-10-25

申请号：US10196009

申请日：2002-07-16

Applicant: José Roberto Alvarez

Inventor： José Roberto Alvarez

IPC: H04N5/213 ,  H04N5/21

CPC classification number: H04N5/213

Abstract: An impulse-reducing module (200) reduces random noise in video pixels by providing an impulse detector (244) and an impulse reducer, such as a median filter (250). The impulse detector (244) generates filter control signals in response to detection of impulses, and the median filter (250) generates filtered pixel values in response to the filter control signals. The control signals set the median filter to a plurality of filter operating modes.

Abstract translation: 脉冲减少模块（200）通过提供脉冲检测器（244）和诸如中值滤波器（250）的脉冲减少器来减少视频像素中的随机噪声。 脉冲检测器（244）响应于脉冲的检测产生滤波器控制信号，并且中值滤波器（250）响应于滤波器控制信号产生滤波的像素值。 控制信号将中值滤波器设置为多个滤波器操作模式。