Perceptual-based spatio-temporal segmentation for motion estimation
    131.
    发明授权
    Perceptual-based spatio-temporal segmentation for motion estimation 有权
    用于运动估计的基于感知的时空分割

    公开(公告)号:US06360017B1

    公开(公告)日:2002-03-19

    申请号:US09239135

    申请日:1999-01-28

    IPC分类号: G06K936

    摘要: A method of encoding a video sequence including a sequence of video images includes first comparing elements of a portion of a first video image (e.g., pixels of a macroblock of a current frame) with elements of a portion of a second video image (e.g., corresponding pixels of a macroblock of a previous frame) to generate respective intensity difference values for the element comparisons. Then, a first value (e.g., one) is assigned to the intensity difference values that are above a visually perceptible threshold value and a second value (e.g., zero) is assigned to the intensity difference values that are at or below the visually perceptible threshold value. Next, the method includes summing the first and second values to generate a sum. If the sum is greater than a predetermined decision value, the portion of the first video image is encoded (e.g., motion compensated). The method is fully compatible and, thus, may be implemented with video standards such as, for example, H.261, H.263, Motion-JPEG, MPEG-1, and MPEG-2.

    摘要翻译: 对包括视频图像序列的视频序列进行编码的方法包括将第一视频图像的一部分(例如,当前帧的宏块的像素)与第二视频图像的一部分的元素(例如, 前一帧的宏块的相应像素)以产生用于元素比较的各个强度差值。 然后,将第一值(例如,一个)分配给高于视觉上可察觉的阈值的强度差值,并且将第二值(例如,零)分配给视觉上可见阈值或以下的强度差值 值。 接下来,该方法包括对第一和第二值求和以产生和。 如果和大于预定的判定值,则对第一视频图像的部分进行编码(例如,运动补偿)。 该方法是完全兼容的,并且因此可以利用诸如H.261,H.263,Motion-JPEG,MPEG-1和MPEG-2之类的视频标准来实现。

    SEMI-FIXED-HUE GAMUT COMPRESSION
    132.
    发明申请
    SEMI-FIXED-HUE GAMUT COMPRESSION 有权
    半固定游隙压缩

    公开(公告)号:US20160037019A1

    公开(公告)日:2016-02-04

    申请号:US14774652

    申请日:2014-03-28

    IPC分类号: H04N1/60

    摘要: One or more apparatus and method for compressing xvYCC or sRGB color to a narrower color gamut. Embodiments may be utilized in processing images/video image sequences provided in a wide gamut color space for display in standard RGB color space. In further embodiments, an sRGB or xvYCC compliant input is compressed to a gamut narrower than sRGB. Embodiments where a narrow output color gamut lacks a fully-defined 3D color space, semi-fixed-hue gamut compression may be performed by adjusting parameters provided to a fixed-hue compression module capable of mapping 3D color space representations between well-defined gamuts.

    摘要翻译: 一种或多种用于将xvYCC或sRGB颜色压缩到较窄色域的装置和方法。 实施例可以用于处理在宽色域颜色空间中提供的用于在标准RGB颜色空间中显示的图像/视频图像序列。 在另外的实施例中,将sRGB或xvYCC兼容输入压缩到比sRGB窄的范围。 可以通过调整提供给能够在明确定义的色域之间映射3D色彩空间表示的固定色调压缩模块的参数来执行半输出色域缺乏完全限定的3D色彩空间的半固定色相色域压缩的实施例。

    Adaptive contrast adjustment techniques
    134.
    发明授权
    Adaptive contrast adjustment techniques 有权
    自适应对比度调整技术

    公开(公告)号:US08639031B2

    公开(公告)日:2014-01-28

    申请号:US13074257

    申请日:2011-03-29

    IPC分类号: G06K9/00 G06K9/40

    摘要: Techniques are disclosed involving contrast adjustment for images. For example, an input image is classified based on its pixel value characteristics, as expressed in an input brightness histogram. From such a classification, a target histogram distribution for a corresponding output image (i.e., a contrast-adjusted transformation of the input image) may be specified. With the target histogram of the output image specified, a transformation function may be derived that maps input image values to output image values. Moreover, transitions of such transformation functions may be smoothed. Such smoothing may provide advantages, such as a reduction in flickering associated with video data.

    摘要翻译: 公开了涉及图像的对比度调整的技术。 例如,输入图像根据输入亮度直方图所表示的像素值特性进行分类。 根据这样的分类,可以规定对应的输出图像的目标直方图分布(即输入图像的对比度调整变换)。 利用指定的输出图像的目标直方图,可以导出将输入图像值映射到输出图像值的变换函数。 此外,这种变换函数的转换可以被平滑化。 这种平滑可以提供诸如减少与视频数据相关联的闪烁的优点。

    Methods and systems for short range motion compensation de-interlacing
    135.
    发明授权
    Methods and systems for short range motion compensation de-interlacing 有权
    短距离运动补偿去隔行的方法和系统

    公开(公告)号:US08405769B2

    公开(公告)日:2013-03-26

    申请号:US12644463

    申请日:2009-12-22

    IPC分类号: H04N7/01

    CPC分类号: H04N7/012

    摘要: 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.

    摘要翻译: 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。

    SYSTEM, METHOD AND COMPUTER PROGRAM PRODUCT FOR COLOR PROCESSING OF POINT-OF-INTEREST COLOR
    136.
    发明申请
    SYSTEM, METHOD AND COMPUTER PROGRAM PRODUCT FOR COLOR PROCESSING OF POINT-OF-INTEREST COLOR 有权
    系统,方法和计算机程序产品,用于彩色处理有趣的色彩

    公开(公告)号:US20120176395A1

    公开(公告)日:2012-07-12

    申请号:US12985461

    申请日:2011-01-06

    IPC分类号: G09G5/02

    CPC分类号: G06T5/008 H04N1/62

    摘要: 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.

    摘要翻译: 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。

    Content adaptive noise reduction filtering for image signals
    137.
    发明授权
    Content adaptive noise reduction filtering for image signals 有权
    图像信号的内容自适应降噪滤波

    公开(公告)号:US08218082B2

    公开(公告)日:2012-07-10

    申请号:US12862175

    申请日:2010-08-24

    IPC分类号: H04N5/21

    摘要: 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.

    摘要翻译: 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。

    FLEXIBLE MACROBLOCK ORDERING AND ARBITRARY SLICE ORDERING APPARATUS, SYSTEM, AND METHOD
    138.
    发明申请
    FLEXIBLE MACROBLOCK ORDERING AND ARBITRARY SLICE ORDERING APPARATUS, SYSTEM, AND METHOD 有权
    灵活的宏块订单和仲裁订单设备,系统和方法

    公开(公告)号:US20120134418A1

    公开(公告)日:2012-05-31

    申请号:US13367449

    申请日:2012-02-07

    IPC分类号: H04N7/26 H04N7/28

    摘要: 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.

    摘要翻译: 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。

    Image buffering techniques
    139.
    发明授权
    Image buffering techniques 有权
    图像缓冲技术

    公开(公告)号:US08068112B2

    公开(公告)日:2011-11-29

    申请号:US12643884

    申请日:2009-12-21

    IPC分类号: G06T15/00

    摘要: 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.

    摘要翻译: 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。

    Noise detection and estimation techniques for picture enhancement
    140.
    发明授权
    Noise detection and estimation techniques for picture enhancement 有权
    用于图像增强的噪声检测和估计技术

    公开(公告)号:US07983501B2

    公开(公告)日:2011-07-19

    申请号:US11693453

    申请日:2007-03-29

    申请人: Yi-Jen Chiu

    发明人: Yi-Jen Chiu

    IPC分类号: G06K9/40 H04N1/409 H04N5/00

    摘要: 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.

    摘要翻译: 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。