公开(公告)号：US08218082B2

公开(公告)日：2012-07-10

申请号：US12862175

申请日：2010-08-24

Applicant: Yi-Jen Chiu ,  Louis Lippincott

Inventor： Yi-Jen Chiu ,  Louis Lippincott

IPC: H04N5/21

CPC classification number: G06T5/002 ,  G06T5/20 ,  G06T7/13 ,  G06T2207/10016 ,  G06T2207/20012 ,  G06T2207/20192 ,  H04N19/117 ,  H04N19/14 ,  H04N19/85 ,  H04N19/86

Abstract: A method includes selecting a target pixel and comparing a value of the target pixel with a respective value of each of a plurality of pixels located in an area that includes the target pixel. Further, for each pixel of the plurality of pixels that has a value different by at least a threshold amount from the value of the target pixel, the value of such pixel is replaced by the value of the target pixel. A filter function is applied to a set of pixels which includes the value of the target pixel and current values, after the selective replacement step, of the plurality of pixels.

Abstract translation: 一种方法包括选择目标像素并将目标像素的值与位于包括目标像素的区域中的多个像素中的每一个的相应值进行比较。 此外，对于具有与目标像素的值相差至少阈值的值的多个像素中的每个像素，这样的像素的值被目标像素的值代替。 滤波器函数被应用于包括多个像素的选择性替换步骤之后的目标像素的值和当前值的像素集合。

公开(公告)号：US20120134418A1

公开(公告)日：2012-05-31

申请号：US13367449

申请日：2012-02-07

Applicant: Yi-Jen Chiu ,  Prasenjit Biswas

Inventor： Yi-Jen Chiu ,  Prasenjit Biswas

IPC: H04N7/26 ,  H04N7/28

CPC classification number: H04N19/44 ,  H04N19/112 ,  H04N19/129 ,  H04N19/174 ,  H04N19/176 ,  H04N19/196 ,  H04N19/197 ,  H04N19/61 ,  H04N19/70

Abstract: A system, apparatus, method, and article to process a flexible macroblock ordering and arbitrary slice ordering are described. The apparatus may include a video decoder. The video decoder includes a processor to store coding parameters of one or more neighboring macroblocks in a data buffer. The neighboring macroblocks are previously decoded macroblocks and are adjacent to a current macroblock. The processor is to store control parameters for each of the one or more neighboring macroblocks in the data buffer. The processor is to reconstruct coding parameters for the current macroblock using availability information associated with the neighboring macroblocks.

Abstract translation: 描述了处理柔性宏块排序和任意片排序的系统，装置，方法和制品。 该装置可以包括视频解码器。 视频解码器包括处理器，用于存储数据缓冲器中的一个或多个相邻宏块的编码参数。 相邻宏块是先前解码的宏块，并且与当前宏块相邻。 处理器用于存储数据缓冲器中的一个或多个相邻宏块中的每一个的控制参数。 处理器使用与相邻宏块相关联的可用性信息来重构当前宏块的编码参数。

公开(公告)号：US08068112B2

公开(公告)日：2011-11-29

申请号：US12643884

申请日：2009-12-21

Applicant: Yi-Jen Chiu ,  Mei-Chen Yeh

Inventor： Yi-Jen Chiu ,  Mei-Chen Yeh

IPC: G06T15/00

CPC classification number: H04N19/573 ,  H04N19/423 ,  H04N19/61

Abstract: A system, apparatus, method and article to perform buffering techniques are described. The apparatus may include a buffer having a fixed number of storage slots that store reconstructed picture representations received from an image processing module. Also, the apparatus may include a buffer status unit to store a multiple information items to indicate one or more buffer characteristics of the buffer. Further, the apparatus may include a buffer control module to manage storage within the buffer.

Abstract translation: 描述了执行缓冲技术的系统，装置，方法和制品。 该装置可以包括具有固定数量的存储时隙的缓冲器，其存储从图像处理模块接收的重构图像表示。 此外，该装置可以包括缓冲器状态单元，用于存储多个信息项以指示缓冲器的一个或多个缓冲器特性。 此外，该装置可以包括用于管理缓冲器内的存储器的缓冲器控制模块。

公开(公告)号：US07983501B2

公开(公告)日：2011-07-19

申请号：US11693453

申请日：2007-03-29

Applicant: Yi-Jen Chiu

Inventor： Yi-Jen Chiu

IPC: G06K9/40 ,  H04N1/409 ,  H04N5/00

CPC classification number: H04N17/00 ,  G06T5/002 ,  G06T5/20 ,  G06T7/13 ,  G06T2207/10016 ,  G06T2207/20008 ,  G06T2207/20032 ,  H04N5/142 ,  H04N5/21

Abstract: A method of filtering noise from a picture may include determining a set of pixel noise metrics for a set of selected pixels in the picture based solely on information from the set of selected pixels in the picture. The method may also designate as valid a subset of pixel noise metrics in the set of pixel noise metrics those associated pixels are not located at an edge or are not located in a complicated area of the picture. A set of block noise metrics may be calculated from the valid subset of pixel noise metrics, and a global noise metric for the picture may be ascertained from the set of block noise metrics. The picture may be filtered using the global noise metric to generate a filtered picture.

Abstract translation: 过滤来自图像的噪声的方法可以包括仅基于来自图像中的所选择的像素的集合的信息来确定图像中的一组所选像素的像素噪声度量的集合。 该方法还可以将像素噪声度量集合中的像素噪声度量的子集指定为相关像素不位于边缘处或者不位于图像的复杂区域中的子集。 可以从像素噪声度量的有效子集计算一组块噪声度量，并且可以从块噪声度量的集合中确定图像的全局噪声度量。 可以使用全局噪声度量来对图像进行滤波以产生滤波图像。

公开(公告)号：US20110149151A1

公开(公告)日：2011-06-23

申请号：US12644463

申请日：2009-12-22

Applicant: Jong Dae Oh ,  Yi-Jen Chiu

Inventor： Jong Dae Oh ,  Yi-Jen Chiu

IPC: H04N7/01

CPC classification number: H04N7/012

Abstract: Systems and methods for choosing whether to select either a spatial interpolation value or a motion compensation interpolation value for deinterlacing an interlaced frame. A minimal sum of absolute differences (SAD) may be determined for a current pixel. Depending on the magnitude of the minimal SAD relative to two threshold values, different checks may be applied. The outcome of the checks may determine whether the spatial interpolation value or the motion compensation interpolation value may be used in deinterlacing. Generally, the magnitude of the minimal SAD may determine the reliability of the SAD and the consequent trustworthiness of the associated motion vector (MV). Greater reliability of the minimal SAD may suggest that the motion compensation interpolation value may be used for purposes of deinterlacing. Less reliability in the minimal SAD may motivate additional checks to further evaluate whether the motion compensation interpolation value should be used. A less reliable minimal SAD and/or failure of some of the checks may suggest that the motion compensation interpolation value should not be used.

Abstract translation: 用于选择是否选择空间插值或用于去隔行隔行帧的运动补偿内插值的系统和方法。 可以为当前像素确定绝对差的最小和（SAD）。 根据相对于两个阈值的最小SAD的大小，可以应用不同的检查。 检查的结果可以确定空间内插值还是运动补偿内插值可以用于去隔行扫描。 通常，最小SAD的幅度可以确定SAD的可靠性和相关联的运动矢量（MV）的随后的可信度。 最小SAD的更高的可靠性可能表明运动补偿内插值可以用于去隔行扫描。 最小SAD中的较低的可靠性可能会激发额外的检查，以进一步评估是否应使用运动补偿内插值。 不太可靠的最小SAD和/或某些检查失败可能表明不应该使用运动补偿内插值。

公开(公告)号：US20110090964A1

公开(公告)日：2011-04-21

申请号：US12582061

申请日：2009-10-20

Applicant: Lidong Xu ,  Yi-Jen Chiu

Inventor： Lidong Xu ,  Yi-Jen Chiu

IPC: H04N11/02

CPC classification number: H04N19/139 ,  H04N5/144 ,  H04N19/513 ,  H04N19/521 ,  H04N19/56 ,  H04N19/57

Abstract: Systems, methods, and computer program products that can be used to determine a search range (SR) when performing motion estimation at, for example, a video encoder or decoder. Determining a motion vector for a current block during motion estimation may involve searching within a search window that may reside in a reference frame, or in a previously decoded block that spatially or temporally neighbors the current block. Such a search seeks a motion vector that minimizes a metric, such as a sum of absolute differences between corresponding blocks of reference frames. A motion vector that minimizes such a metric may be a good candidate for use in motion estimation. The search may become more efficient if a search range is determined such that the extent of the search is bounded. A search range may be determined at the block level or at the picture level.

Abstract translation: 当在例如视频编码器或解码器上执行运动估计时，可用于确定搜索范围（SR）的系统，方法和计算机程序产品。 在运动估计期间确定当前块的运动矢量可以涉及在可能驻留在参考帧中的搜索窗口内或在空间上或时间上邻近当前块的先前解码的块中进行搜索。 这样的搜索寻找使度量最小化的运动矢量，诸如对应的参考帧块之间的绝对差的和。 使这种度量最小化的运动矢量可能是用于运动估计的良好候选。 如果确定搜索范围使得搜索范围有界，则搜索可能变得更有效。 可以在块级别或图片级别确定搜索范围。

公开(公告)号：US07916965B2

公开(公告)日：2011-03-29

申请号：US12693006

申请日：2010-01-25

Applicant: Yi-Jen Chiu ,  Jorge E. Caviedes

Inventor： Yi-Jen Chiu ,  Jorge E. Caviedes

IPC: G06K9/40 ,  G06K9/62 ,  G06K9/74 ,  H04N5/00

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61

Abstract: A method includes making a first determination as to whether a current pixel has a value which reflects a mosquito noise artifact, and determining whether to apply a filtering process at the current pixel based on a result of the first determination. In addition, or alternatively, a method includes making a second determination as to whether a current pixel has a value which reflects a ringing artifact, and determining whether to apply a filtering process at the current pixel based on a result of the second determination.

Abstract translation: 一种方法包括：对当前像素是否具有反映蚊式噪声伪影的值进行第一确定，以及基于第一确定的结果来确定是否对当前像素应用滤波处理。 另外或者替代地，一种方法包括对当前像素是否具有反映振铃伪影的值进行第二确定，以及基于第二确定的结果来确定是否对当前像素应用滤波处理。

公开(公告)号：US20110002390A1

公开(公告)日：2011-01-06

申请号：US12567540

申请日：2009-09-25

Applicant: Yi-Jen Chiu ,  Lidong Xu ,  Hong Jiang

Inventor： Yi-Jen Chiu ,  Lidong Xu ,  Hong Jiang

IPC: H04N7/26

CPC classification number: H04N19/52 ,  H04N19/44 ,  H04N19/51 ,  H04N19/56 ,  H04N19/577

Abstract: Method and apparatus for deriving a motion vector at a video decoder. A block-based motion vector may be produced at the video decoder by utilizing motion estimation among available pixels relative to blocks in one or more reference frames. The available pixels could be, for example, spatially neighboring blocks in the sequential scan coding order of a current frame, blocks in a previously decoded frame, or blocks in a downsampled frame in a lower pyramid when layered coding has been used.

Abstract translation: 用于在视频解码器处导出运动矢量的方法和装置。 可以通过利用可用像素中相对于一个或多个参考帧中的块的运动估计在视频解码器处产生基于块的运动矢量。 当使用分层编码时，可用像素可以是例如当前帧的顺序扫描编码顺序的空间相邻块，先前解码的帧中的块，或者在使用分层编码时在较低金字塔中的下采样帧中的块。

公开(公告)号：US07804896B2

公开(公告)日：2010-09-28

申请号：US11230148

申请日：2005-09-19

Applicant: Yi-Jen Chiu ,  Louis Lippincott

Inventor： Yi-Jen Chiu ,  Louis Lippincott

IPC: H04N11/04 ,  H04B1/66

CPC classification number: G06T5/002 ,  G06T5/20 ,  G06T7/13 ,  G06T2207/10016 ,  G06T2207/20012 ,  G06T2207/20192 ,  H04N19/117 ,  H04N19/14 ,  H04N19/85 ,  H04N19/86

Abstract: A method includes selecting a target pixel and comparing a value of the target pixel with a respective value of each of a plurality of pixels located in an area that includes the target pixel. Further, for each pixel of the plurality of pixels that has a value different by at least a threshold amount from the value of the target pixel, the value of such pixel is replaced by the value of the target pixel. A filter function is applied to a set of pixels which includes the value of the target pixel and current values, after the selective replacement step, of the plurality of pixels.

Abstract translation: 一种方法包括选择目标像素并将目标像素的值与位于包括目标像素的区域中的多个像素中的每一个的相应值进行比较。 此外，对于具有与目标像素的值相差至少阈值的值的多个像素中的每个像素，这样的像素的值被目标像素的值代替。 滤波器函数被应用于包括多个像素的选择性替换步骤之后的目标像素的值和当前值的像素集合。

公开(公告)号：US20100118977A1

公开(公告)日：2010-05-13

申请号：US12693006

申请日：2010-01-25

Applicant: Yi-Jen Chiu ,  Jorge E. Caviedes

Inventor： Yi-Jen Chiu ,  Jorge E. Caviedes

IPC: H04N7/12 ,  G06K9/40

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61

Abstract: A method includes making a first determination as to whether a current pixel has a value which reflects a mosquito noise artifact, and determining whether to apply a filtering process at the current pixel based on a result of the first determination. In addition, or alternatively, a method includes making a second determination as to whether a current pixel has a value which reflects a ringing artifact, and determining whether to apply a filtering process at the current pixel based on a result of the second determination.

Abstract translation: 一种方法包括：对当前像素是否具有反映蚊式噪声伪影的值进行第一确定，以及基于第一确定的结果来确定是否对当前像素应用滤波处理。 另外或者替代地，一种方法包括对当前像素是否具有反映振铃伪影的值进行第二确定，以及基于第二确定的结果来确定是否对当前像素应用滤波处理。