公开(公告)号：US08644392B2

公开(公告)日：2014-02-04

申请号：US13367449

申请日：2012-02-07

Applicant: Yi-Jen Chiu ,  Prasenjit Biswas

Inventor： Yi-Jen Chiu ,  Prasenjit Biswas

IPC: H04B1/66 ,  H04N7/12

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：US20140023139A1

公开(公告)日：2014-01-23

申请号：US13977420

申请日：2011-11-07

Applicant: Lidong Xu ,  Yi-Jen Chiu ,  Yu Han ,  Wenhao Zhang

Inventor： Lidong Xu ,  Yi-Jen Chiu ,  Yu Han ,  Wenhao Zhang

IPC: H04N7/32

CPC classification number: H04N19/105 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/61

Abstract: Systems, apparatus and methods are described including determining a prediction residual for a channel of video data; and determining, using the first channel's prediction residual, a prediction residual for a second channel of the video data. Further, a prediction residual for a third channel of the video data may be determined using the second channel's prediction residual.

公开(公告)号：US08493402B2

公开(公告)日：2013-07-23

申请号：US12985461

申请日：2011-01-06

Applicant: Ya-Ti Peng ,  Yi-Jen Chiu

Inventor： Ya-Ti Peng ,  Yi-Jen Chiu

IPC: G09G5/02

CPC classification number: G06T5/008 ,  H04N1/62

Abstract: Methods and systems to manipulate color processing parameters to allow the detection of an arbitrary color of interest. Such reconfigurations may enable general point-of-interest color processing. Color mapping curves may also be configured, to accomplish the tasks of color correction, enhancement, de-saturation, and color compression.

Abstract translation: 用于操纵颜色处理参数以允许检测感兴趣的任意颜色的方法和系统。 这样的重新配置可以实现一般的兴趣点颜色处理。 也可以配置颜色映射曲线，以完成色彩校正，增强，去饱和和色彩压缩的任务。

公开(公告)号：US08462852B2

公开(公告)日：2013-06-11

申请号：US12582061

申请日：2009-10-20

Applicant: Lidong Xu ,  Yi-Jen Chiu

Inventor： Lidong Xu ,  Yi-Jen Chiu

IPC: H04N7/50

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：US08457197B2

公开(公告)日：2013-06-04

申请号：US13466256

申请日：2012-05-08

Applicant: Yi-Jen Chiu ,  Lidong Xu

Inventor： Yi-Jen Chiu ,  Lidong Xu

IPC: H04N7/12

CPC classification number: H04N19/36 ,  H04N19/117 ,  H04N19/30 ,  H04N19/46 ,  H04N19/61 ,  H04N19/80

Abstract: Adaptive filtering may be used to increase the quality of tone mapped, baseline layer encoded information. As a result, scalable video codecs may be implemented with improved picture quality in some embodiments.

公开(公告)号：US08379723B2

公开(公告)日：2013-02-19

申请号：US11475413

申请日：2006-06-27

Applicant: Yi-Jen Chiu ,  Mei-Chen Yeh ,  Prasenjit Biswas ,  Louis Lippincott

Inventor： Yi-Jen Chiu ,  Mei-Chen Yeh ,  Prasenjit Biswas ,  Louis Lippincott

IPC: H04N7/12

CPC classification number: H04N19/51 ,  H04N19/112 ,  H04N19/186 ,  H04N19/513 ,  H04N19/573

Abstract: A system, apparatus, method, and article to process a chroma motion vector are described. The apparatus may include a video decoder. The video decoder includes a processor to receive a compressed video bitstream. The compressed video bitstream includes a stream of pictures. The stream of pictures includes a current slice and a current block within the slice. The processor pre-computes a chroma motion vector adjustment parameter for the current slice and determines a motion vector component for the current block within the current slice using the pre-computed chroma motion vector adjustment parameter.

Abstract translation: 描述了用于处理色度运动矢量的系统，装置，方法和物品。 该装置可以包括视频解码器。 视频解码器包括用于接收压缩视频比特流的处理器。 压缩视频比特流包括图像流。 图像流包括切片内的当前切片和当前块。 处理器预先计算当前切片的色度运动矢量调整参数，并使用预先计算的色度运动矢量调整参数确定当前切片内当前块的运动矢量分量。

公开(公告)号：US20130022126A1

公开(公告)日：2013-01-24

申请号：US13638628

申请日：2010-03-31

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

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

IPC: H04N7/28 ,  H04N7/32

CPC classification number: H04N19/53 ,  H04N19/105 ,  H04N19/109 ,  H04N19/174 ,  H04N19/176 ,  H04N19/187 ,  H04N19/30 ,  H04N19/33 ,  H04N19/37 ,  H04N19/57 ,  H04N19/573 ,  H04N19/61

Abstract: Adaptive control can use hierarchical motion estimation (HME) and/or multiple reference motion estimation (MRME) for the motion estimation of current encoding blocks. Both HME and MRME are allowed in the motion estimation to achieve a high coding gain. Control consists of slice level control and macro-block (MB) level control. A slice is one or more contiguous macroblocks. In slice level control, it is decided to use only one reference frame or use multiple reference frames to coding current slice based on the motion vectors obtained in coarse level motion estimation. In MB level control, it is decided to perform MRME or perform HME for the MB and its subblocks based on the coarse level motion vectors of the MB.

Abstract translation: 自适应控制可以对当前编码块的运动估计使用分层运动估计（HME）和/或多参考运动估计（MRME）。 在运动估计中允许HME和MRME两者实现高编码增益。 控制由片级控制和宏块（MB）级控制组成。 切片是一个或多个连续的宏块。 在片级控制中，决定仅使用一个参考帧或者使用多个参考帧来基于在粗略级运动估计中获得的运动矢量对当前片进行编码。 在MB级别控制中，决定执行MRME或基于MB的粗略级别运动向量对MB及其子块执行HME。

公开(公告)号：US20120294370A1

公开(公告)日：2012-11-22

申请号：US13575233

申请日：2011-04-01

Applicant: Yi-Jen Chiu ,  Lidong Xu ,  Wenhao Zhang

Inventor： Yi-Jen Chiu ,  Lidong Xu ,  Wenhao Zhang

IPC: H04N7/32

CPC classification number: H04N19/44 ,  H04N19/513 ,  H04N19/533 ,  H04N19/56

Abstract: A system and method for performing candidate-based decoder-side motion vector determination (DMVD). Candidate motion vectors (MVs) may be rounded to the nearest whole or integer pixel. The rounded candidate MV having the best sum of absolute differences (SAD) may be identified. This may be used as the final MV. Alternatively, the un-rounded MV corresponding to this rounded candidate MV may be used as the final MV. Alternatively, a small range integer search may be performed around the chosen rounded candidate MV, and the best integer pixel in the search area may be identified and used to define the final MV. Alternatively, an intermediate MV may be chosen, where this MV is intermediate between the chosen rounded candidate MV and the MV corresponding to the best integer pixel in the search area.

Abstract translation: 一种用于执行基于候选的解码器侧运动矢量确定（DMVD）的系统和方法。 候选运动矢量（MV）可以舍入到最接近的整数或整数像素。 可以识别具有最佳绝对差（SAD）之和的舍入候选MV。 这可以用作最终的MV。 或者，可以将与该舍入候选MV相对应的未舍入的MV用作最终MV。 或者，可以围绕所选择的舍入候选MV执行小范围整数搜索，并且可以识别搜索区域中的最佳整数像素并用于定义最终MV。 或者，可以选择中间MV，其中该MV在所选择的舍入候选MV和对应于搜索区域中的最佳整数像素的MV之间。

公开(公告)号：US08295357B2

公开(公告)日：2012-10-23

申请号：US11646763

申请日：2006-12-27

Applicant: Yi-Jen Chiu ,  Sang-hee Lee ,  Hong Jiang

Inventor： Yi-Jen Chiu ,  Sang-hee Lee ,  Hong Jiang

IPC: H04N7/46

CPC classification number: H04N7/012 ,  H04N7/0142

Abstract: In one embodiment, an apparatus and method for an angular-directed spatial deinterlacer are disclosed. In one embodiment, the method comprises calculating a cost measure for each of multiple angle candidates for a target pixel block to be deinterlaced in a spatial-only domain, determining a horizontal angle measure for the target pixel block, establishing a global minimum angle from the multiple angle candidates by determining the lowest cost measure from the multiple angle candidates, establishing a local minimum angle from the multiple angle candidates by sifting through the angle candidates in a hierarchical manner, and filtering the global minimum angle and the local minimum angle to create a value for interpolating the target pixel block for deinterlacing. Other embodiments are also described.

Abstract translation: 在一个实施例中，公开了一种用于角定向空间解交错器的装置和方法。 在一个实施例中，该方法包括计算针对要在空间域中去隔行扫描的目标像素块的多个角度候选中的每一个的成本测量，确定目标像素块的水平角度度量，从 通过从多个角度候选确定最低成本度量来确定多个角度候选，通过以分级方式筛选角度候选来从多个角度候选建立局部最小角度，以及过滤全局最小角度和局部最小角度以创建 内插用于去隔行扫描的目标像素块的值。 还描述了其它实施例。

公开(公告)号：US20120219059A1

公开(公告)日：2012-08-30

申请号：US13466243

申请日：2012-05-08

Applicant: Yi-Jen Chiu ,  Lidong Xu

Inventor： Yi-Jen Chiu ,  Lidong Xu

IPC: H04N7/26 ,  H04N7/32

CPC classification number: H04N19/117 ,  H04N19/136 ,  H04N19/157 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/177 ,  H04N19/18 ,  H04N19/182 ,  H04N19/61 ,  H04N19/65 ,  H04N19/82 ,  H04N19/86

Abstract: A video encoder may use an adaptive Wiener filter inside the core video encoding loop to improve coding efficiency. In one embodiment, the Wiener filter may be on the input to a motion estimation unit and, in another embodiment, it may be on the output of a motion compensation unit. The taps for the Wiener filter may be determined based on characteristics of at least a region of pixel intensities within a picture. Thus, the filtering may be adaptive in that it varies based on the type of video being processed.

Abstract translation: 视频编码器可以在核心视频编码环路内使用自适应维纳滤波器来提高编码效率。 在一个实施例中，维纳滤波器可以在运动估计单元的输入上，并且在另一个实施例中，其可以在运动补偿单元的输出上。 用于维纳滤波器的抽头可以基于图像内的像素强度的至少一个区域的特性来确定。 因此，滤波可以是适应性的，因为它根据正在处理的视频的类型而变化。