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13 条记录 (耗时 0.026 秒)

    Method and apparatus for compensating for chrominance saturation
    1.
    发明授权
    Method and apparatus for compensating for chrominance saturation 有权
    用于补偿色度饱和度的方法和装置

    公开(公告)号：US07193659B2

    公开(公告)日：2007-03-20

    申请号：US10847205

    申请日：2004-05-17

    申请人： Yong Huang ,  Patricia Wei Yin Chiang ,  Lucas Y. W. Hui ,  Kwong Huang Goh

    发明人： Yong Huang ,  Patricia Wei Yin Chiang ,  Lucas Y. W. Hui ,  Kwong Huang Goh

    IPC分类号： H04N9/68 ,  H04N9/64

    CPC分类号： H04N9/68 ,  H04N9/77

    摘要： A method of color saturation compensation in a video signal is disclosed. The method includes the steps of: processing a luminance signal component of the video signal; determining whether the processing of the luminance signal results in a change in chrominance saturation; if the step of determining reveals that the chrominance saturation has changed, applying a chrominance compensation signal to the chrominance signals to counteract the effects of chrominance saturation, wherein the step of applying a compensation signal include the steps of: generating a compensation signal which is dependent on hue and luminance ratio (output luminance signal/input luminance signal). Apparatus for performing the method is also disclosed.

    摘要翻译： 公开了一种视频信号中色彩饱和补偿的方法。 该方法包括以下步骤：处理视频信号的亮度信号分量; 确定亮度信号的处理是否导致色度饱和度的变化; 如果确定步骤显示色度饱和度已经改变，则将色度补偿信号施加到色度信号以抵消色度饱和度的影响，其中施加补偿信号的步骤包括以下步骤：产生依赖的补偿信号 色相和亮度比（输出亮度信号/输入亮度信号）。 还公开了用于执行该方法的装置。

    Macro-block quantization reactivity compensation
    3.
    发明授权
    Macro-block quantization reactivity compensation 有权
    宏块量化反应性补偿

    公开(公告)号：US08681857B2

    公开(公告)日：2014-03-25

    申请号：US11525202

    申请日：2006-09-21

    申请人： Kwong-Huang Goh ,  Lucas Y. W. Hui

    发明人： Kwong-Huang Goh ,  Lucas Y. W. Hui

    IPC分类号： H04N7/12

    CPC分类号： H04N19/198 ,  H04N19/126 ,  H04N19/137 ,  H04N19/14 ,  H04N19/142 ,  H04N19/149 ,  H04N19/152 ,  H04N19/176 ,  H04N19/196 ,  H04N19/61

    摘要： A macro-block (MB) quantization reactivity compensation method for a video encoder is provided. The method calculates a reference picture quantization value based on a calculated picture complexity. This predicted reference quantization is combined with the bits-used reactive MB reference quantization value to determine the final MB reference quantization value. This MB reference quantization value is also made adaptive to the VBV buffer fullness, as well as to the predicted change of the current picture complexity. A video encoder and an article of manufacture that comprises computer readable program code for execution of the method are also provided.

    摘要翻译： 提供了一种用于视频编码器的宏块（MB）量化反应性补偿方法。 该方法基于计算出的图像复杂度来计算参考图像量化值。 将该预测的参考量化与使用位的无效MB参考量化值组合以确定最终的MB参考量化值。 该MB参考量化值也适应于VBV缓冲器充满度以及当前图像复杂度的预测变化。 还提供了包括用于执行该方法的计算机可读程序代码的视频编码器和制品。

    Memory transfer controller and method of transfer control of video line data and macroblock data
    4.
    发明授权
    Memory transfer controller and method of transfer control of video line data and macroblock data 有权
    存储器传输控制器和视频行数据和宏块数据的传输控制方法

    公开(公告)号：US09100653B2

    公开(公告)日：2015-08-04

    申请号：US11461611

    申请日：2006-08-01

    申请人： Patricia Wei Yin Chiang ,  Lucas Y. W. Hui

    发明人： Patricia Wei Yin Chiang ,  Lucas Y. W. Hui

    IPC分类号： H04N7/12 ,  H04N19/423 ,  H04N19/61

    CPC分类号： H04N19/423 ,  H04N19/61

    摘要： A method of transferring sets of video line data and macroblock data, includes the steps of determining a macroblock period and a video line period longer than the macroblock period, dividing each set of video line data to be transferred within the video line period into two or more portions according to the difference between the determined macroblock period and video line period, aligning a burst transfer of each of the portions of the divided set of video line data and each set of macroblock data to the macroblock period, and initiating the burst transfer of the sets of video line data and macroblock data at macroblock period intervals.

    摘要翻译： 一种传送视频行数据和宏块数据集的方法包括以下步骤：确定宏块周期和比宏块周期长的视频行周期，将在视频行周期内传送的每组视频行数据划分成两个或 根据所确定的宏块周期和视频行周期之间的差异来更多部分，将分割的视频行数据集合的每个部分的突发传送与每个宏块数据集对齐到宏块周期，并且发起突发传送 在宏块周期间隔的视频行数据和宏块数据集合。

    Video compression coding and decoding with automatic sub-pixel frame/field motion compensation
    6.
    发明授权
    Video compression coding and decoding with automatic sub-pixel frame/field motion compensation 失效
    具有自动子像素帧/场运动补偿的视频压缩编码和解码

    公开(公告)号：US5488419A

    公开(公告)日：1996-01-30

    申请号：US31495

    申请日：1993-03-15

    申请人： Lucas Y. W. Hui ,  Siew-Tan Chong

    发明人： Lucas Y. W. Hui ,  Siew-Tan Chong

    IPC分类号： H04N19/50 ,  G06T9/00 ,  H04N5/14 ,  H04N19/132 ,  H04N19/139 ,  H04N19/176 ,  H04N19/196 ,  H04N19/423 ,  H04N19/503 ,  H04N19/523 ,  H04N19/57 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625 ,  H04N19/85 ,  H04N19/93 ,  H04N7/30 ,  H04N7/32

    CPC分类号： H04N5/145 ,  H04N19/105 ,  H04N19/112 ,  H04N19/137 ,  H04N19/16 ,  H04N19/523 ,  H04N19/577 ,  H04N19/61

    摘要： An input frame to be motion compensated is partitioned into smaller blocks of pixel data. First, motion estimation is performed on each block in full-pixel resolution. Then, full-pixel resolution motion vector is refined to half-pixel accuracy by searching the surrounding half-pixel resolution blocks in vertical and horizontal positions with respect to the full-pixel resolution motion vector. An absolute magnitude of a horizontal component of the full-pixel resolution motion vector is examined to see if it is greater or less than a predetermined threshold to detect any significant movement. If the horizontal component absolute magnitude is less than the threshold, a frame-based interpolation will be used for forming the sub-pixel resolution block. If the horizontal component absolute magnitude is greater than the threshold, a field-based interpolation will be used instead. The sub-pixel resolution block is subjected to motion estimation and compensation to obtain a predicted block which will then be coded to obtain a coded bit stream.

    摘要翻译： 要被运动补偿的输入帧被划分成更小的像素数据块。 首先，以全像素分辨率对每个块执行运动估计。 然后，通过在全像素分辨率运动矢量的垂直和水平位置搜索周围的半像素分辨率块，将全像素分辨率运动矢量精确到半像素精度。 检查全像素分辨率运动矢量的水平分量的绝对幅度，以查看其是否大于或小于预定阈值以检测任何显着运动。 如果水平分量绝对值小于阈值，则将使用基于帧的插值来形成子像素分辨率块。 如果水平分量绝对值大于阈值，则将使用基于场的插值。 对子像素分辨率块进行运动估计和补偿以获得预测块，然后对其进行编码以获得编码比特流。

    Adaptive coring for video peaking
    7.
    发明授权
    Adaptive coring for video peaking 有权
    视频峰值的自适应取芯

    公开(公告)号：US07176983B2

    公开(公告)日：2007-02-13

    申请号：US10850963

    申请日：2004-05-20

    申请人： Patricia Wei Yin Chiang ,  Lucas Y. W. Hui

    发明人： Patricia Wei Yin Chiang ,  Lucas Y. W. Hui

    IPC分类号： H04N5/21

    CPC分类号： G06T5/003 ,  G06T5/20 ,  G06T7/13 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20012 ,  G06T2207/20192 ,  H04N5/142 ,  H04N5/21 ,  H04N9/77

    摘要： A processor for enhancing an input luminance signal including: a circuit for calculating a chroma edge value associated with the input luminance signal; a circuit for measuring a luminance gradient associated with the input luminance signal; a peaking filter for processing the input luminance signal; a gain adjustment circuit having a gain function that is adjustable relative to the calculated chroma edge value, the gain adjustment circuit being operable to adjust the magnitude of the output of the peaking filter wherein: in a first range of luminance gradients, the output is an attenuated version of the input; in a second range of luminance gradients the output is directly proportional to the input; in a third range of luminance gradients, the output is inversely proportional to the input; wherein the enhanced luminance signal is the sum of the input and output of the peaking filter.

    摘要翻译： 一种用于增强输入亮度信号的处理器，包括：用于计算与输入亮度信号相关联的色度边缘值的电路; 用于测量与输入亮度信号相关联的亮度梯度的电路; 用于处理输入亮度信号的峰值滤波器; 所述增益调整电路具有相对于所计算的色度边缘值可调节的增益函数，所述增益调整电路可操作以调整所述峰值滤波器的输出的幅度，其中：在亮度梯度的第一范围内，所述输出为 衰减版本的输入; 在第二个亮度梯度范围内，输出与输入成正比; 在第三个亮度梯度范围内，输出与输入成反比; 其中增强的亮度信号是峰值滤波器的输入和输出之和。

    Cache memory system
    8.
    发明授权
    Cache memory system 有权
    缓存存储系统

    公开(公告)号：US07006100B2

    公开(公告)日：2006-02-28

    申请号：US10677629

    申请日：2003-10-02

    申请人： Kah-Ho Phong ,  Lucas Y. W. Hui

    发明人： Kah-Ho Phong ,  Lucas Y. W. Hui

    IPC分类号： G09G5/36 ,  H04N7/12 ,  G06F13/00

    CPC分类号： G06T1/60 ,  H04N19/433

    摘要： A cache memory system is used in a motion estimation system. The system includes: a first cache memory defined in terms of a first width and a first height, and a second cache memory defined in terms of a second width and a second height, wherein said second height is less than said first height, the cache memory system being operable in one of two modes: the first mode being characterized by banks of memory from the second cache memory being concatenated vertically such that their concatenated height is at least equal to the first height, and said concatenated banks being arranged to be appended to the width of the first cache memory to form a single contiguous address space; and the second mode being characterized by banks of memory from the first and second cache being stacked vertically, and being arranged to be addressed as two separate address spaces.

    摘要翻译： 在运动估计系统中使用高速缓冲存储器系统。 该系统包括：根据第一宽度和第一高度定义的第一高速缓存存储器和根据第二宽度和第二高度定义的第二高速缓存存储器，其中所述第二高度小于所述第一高度，高速缓存 存储器系统可以以两种模式之一操作：第一模式的特征在于来自第二高速缓冲存储器的存储器组被垂直级联，使得它们的级联高度至少等于第一高度，并且所述级联存储体被布置为被附加 到第一个高速缓冲存储器的宽度以形成单个连续的地址空间; 并且第二模式的特征在于来自第一和第二高速缓存的存储器组是垂直堆叠的，并且被布置为被寻址为两个单独的地址空间。

    Edge adaptive filtering system for reducing artifacts and method
    9.
    发明授权
    Edge adaptive filtering system for reducing artifacts and method 有权
    边缘自适应滤波系统，用于减少伪像和方法

    公开(公告)号：US07620261B2

    公开(公告)日：2009-11-17

    申请号：US10995937

    申请日：2004-11-23

    申请人： Patricia Chiang ,  Lucas Y. W. Hui

    发明人： Patricia Chiang ,  Lucas Y. W. Hui

    IPC分类号： G06K9/40 ,  G06K9/36

    CPC分类号： H04N19/16 ,  H04N19/117 ,  H04N19/136 ,  H04N19/154 ,  H04N19/157

    摘要： A method includes receiving image information representing at least one image. The image information defines multiple pixels in the at least one image. The method also includes identifying filter weights associated with the pixels. The filter weights are based on edge contents of at least a portion of the at least one image. In addition, the method includes filtering the image information using the identified filter weights.

    摘要翻译： 一种方法包括接收表示至少一个图像的图像信息。 图像信息定义至少一个图像中的多个像素。 该方法还包括识别与像素相关联的滤波器权重。 过滤器重量基于至少一个图像的至少一部分的边缘内容。 另外，该方法包括使用所识别的滤波器权重来过滤图像信息。

    Memory transfer controller and method of transfer control of video line data and macroblock data
    10.
    发明授权
    Memory transfer controller and method of transfer control of video line data and macroblock data 有权
    存储器传输控制器和视频行数据和宏块数据的传输控制方法

    公开(公告)号：US07126992B2

    公开(公告)日：2006-10-24

    申请号：US10356719

    申请日：2003-01-30

    申请人： Patricia Wei Yin Chiang ,  Lucas Y. W. Hui

    发明人： Patricia Wei Yin Chiang ,  Lucas Y. W. Hui

    IPC分类号： H04N7/12

    CPC分类号： H04N19/423 ,  H04N19/61

    摘要： A method of transferring sets of video line data and macrob lock data, includes the steps of determining a macroblock period and a video line period longer than the macroblock period, dividing each set of video line data to be transferred within the video line period into two or more portions according to the difference between the determined macroblock period and video line period, aligning a burst transfer of each of the portions of the divided set of video line data and each set of macroblock data to the macroblock period, and initiating the burst transfer of the sets of video line data and macroblock data at macroblock period intervals.

    摘要翻译： 一种传送视频行数据和宏锁数据集的方法包括以下步骤：确定宏块周期和比宏块周期长的视频行周期，将视频行周期内要传送的每组视频行数据划分为两个 根据所确定的宏块周期和视频行周期之间的差异来分配多个部分，将分割的视频行数据集合的每个部分和每组宏块数据的突发传送对准宏块周期，并且发起突发传送 的视频行数据和宏块数据。