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    Video Quality Enhancement and/or Artifact Reduction Using Coding Information From a Compressed Bitstream
    1.
    发明申请
    Video Quality Enhancement and/or Artifact Reduction Using Coding Information From a Compressed Bitstream 审中-公开
    使用来自压缩比特流的编码信息的视频质量增强和/或减少伪像

    公开(公告)号：US20070230918A1

    公开(公告)日：2007-10-04

    申请号：US10599199

    申请日：2005-03-29

    申请人： Sandeep Dalal ,  Yibin Yang ,  Lilla Boroczky ,  Cornelis Conradus Adrianus Van Zon

    发明人： Sandeep Dalal ,  Yibin Yang ,  Lilla Boroczky ,  Cornelis Conradus Adrianus Van Zon

    IPC分类号： H04N7/01 ,  H04N7/12 ,  H04N7/26

    CPC分类号： H04N7/0112 ,  H04N19/61 ,  H04N19/86

    摘要： A system and method of processing a digital video signal for display on a display device, includes decoding an encoded digital video signal to produce a decoded digital video signal having a video source format; extracting coding information from the encoded digital video signal; executing a video quality improvement algorithm on the decoded digital video signal having the video source format using the extracted coding information, to produce a processed decoded digital video signal having the video source format; and converting the processed decoded digital video signal from the video source format to a video display format suitable for display on the display device. The system and method enhance the quality and/or reduce video artifacts in a video signal after it is decoded and prior to display on a display device.

    摘要翻译： 一种处理数字视频信号以在显示装置上显示的系统和方法，包括对编码的数字视频信号进行解码以产生具有视频源格式的解码数字视频信号; 从编码的数字视频信号中提取编码信息; 对使用所提取的编码信息的视频源格式的解码数字视频信号执行视频质量改进算法，以产生具有视频源格式的经处理的解码数字视频信号; 并且将经处理的解码数字视频信号从视频源格式转换成适于在显示设备上显示的视频显示格式。 该系统和方法在视频信号被解码之后并且在显示设备上显示之前增强视频信号的质量和/或降低视频伪影。

    System and method for global indication of mpeg impairments in compressed digital video
    2.
    发明申请
    System and method for global indication of mpeg impairments in compressed digital video 审中-公开
    压缩数字视频中mpeg损伤的全局指示系统和方法

    公开(公告)号：US20070139564A1

    公开(公告)日：2007-06-21

    申请号：US10598203

    申请日：2004-02-27

    申请人： Lilla Boroczky ,  Cornelis Conradus Adrianus Van Zon ,  Yibin Yang

    发明人： Lilla Boroczky ,  Cornelis Conradus Adrianus Van Zon ,  Yibin Yang

    IPC分类号： H04N5/21

    CPC分类号： H04N17/004 ,  H04N19/102 ,  H04N19/117 ,  H04N19/134 ,  H04N19/146 ,  H04N19/154 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/44 ,  H04N19/61 ,  H04N19/86

    摘要： A method of determining processing a coded video signal includes decoding the coded video signal; determining a global indicator value for a frame from the decoded video; and providing video processing to the decoded video of the frame based on the global indicator. Additionally, an apparatus for processing coded digital video signals includes a coded video decoder; a metric calculation module; and a video processing module, wherein the metric calculation module calculates at least one value of a global indicator, which indicates the quality of the coded video signal, and where the metric calculation module provides the global indicator to the video processing module, which selectively addresses the coded video signal depending on the value.

    摘要翻译： 一种确定处理编码视频信号的方法包括解码编码视频信号; 从解码的视频确定帧的全局指示符值; 并且基于全局指示符向帧的解码视频提供视频处理。 另外，用于处理编码数字视频信号的装置包括编码视频解码器; 度量计算模块; 以及视频处理模块，其中所述度量计算模块计算指示所述编码视频信号的质量的全局指示符的至少一个值，并且所述度量计算模块向所述视频处理模块提供全局指示符，所述视频处理模块选择性地寻址 编码的视频信号取决于值。

    Ringing artifact reduction for compressed video applications
    4.
    发明申请
    Ringing artifact reduction for compressed video applications 审中-公开
    压缩视频应用的振铃神器减少

    公开(公告)号：US20070133896A1

    公开(公告)日：2007-06-14

    申请号：US10598184

    申请日：2004-02-27

    申请人： Lilla Boroczky ,  Yibin Yang

    发明人： Lilla Boroczky ,  Yibin Yang

    IPC分类号： G06K9/40

    CPC分类号： G06T5/002 ,  G06T2207/10016 ,  H04N19/117 ,  H04N19/146 ,  H04N19/159 ,  H04N19/196 ,  H04N19/198 ,  H04N19/86

    摘要： A method of reducing ringing artifacts in a compressed digital video signal includes decoding the coded video signal; determining plurality of metric values in a region near at least one pixel, wherein the metric values are greater than a particular value; and applying a deringing method to substantially reduce ringing artifacts near the pixel. An apparatus for selectively deringing a compressed digital video signal includes a decoding device, a metric calculation device and a metric-controlled deringing device, wherein the deringing device reduces ringing artifacts in certain regions of a video frame based on data from the metric calculation device. In accordance with another example embodiment, the metric-controlled deringing device updates the metric data of the frame based on the deringing.

    摘要翻译： 一种减少压缩数字视频信号中的振荡伪像的方法包括解码编码的视频信号; 确定在至少一个像素附近的区域中的多个度量值，其中度量值大于特定值; 并施加一个打丁方法来显着地减少像素附近的振铃伪像。 一种用于选择性地对压缩数字视频信号进行分段的设备包括解码设备，度量计算设备和度量控制的分页设备，其中，所述分层设备基于来自度量计算设备的数据，减少视频帧的某些区域中的振铃伪影。 根据另一个示例性实施例，度量控制的分页设备基于分页更新帧的度量数据。

    System for and method of sharpness enhancement using coding information and local spatial features
    6.
    发明授权
    System for and method of sharpness enhancement using coding information and local spatial features 有权
    使用编码信息和局部空间特征提高锐度的系统和方法

    公开(公告)号：US06862372B2

    公开(公告)日：2005-03-01

    申请号：US10029828

    申请日：2001-12-27

    申请人： Yibin Yang ,  Lilla Boroczky

    发明人： Yibin Yang ,  Lilla Boroczky

    IPC分类号： H04N5/208 ,  H04N7/26 ,  G06K9/40

    CPC分类号： H04N19/157 ,  H04N5/208 ,  H04N19/159 ,  H04N19/172 ,  H04N19/80

    摘要： In accordance with the present invention a method of and a system for enhancing image quality of a coded digital video signal representative of at least one frame in a digital video system are provided. The method comprises the steps of creating a usefulness metric identifying a limit to sharpness enhancement to be applied to the coded digital video signal, defining local spatial features in the frame, and identifying a frame type for the frame. The usefulness metric created in the creating step is: UME = 1 - M * ( 1 + q_scale N ) 2 * q_scale num_bits max ⁢ ( q_scale num_bits ) wherein UME is the usefulness metric, q_scale is a quantization scale for a macroblock, num_bits is a number of bits to encode a luminance block, max is a function representing a maximum value for the frame, and M and N are scaling factors. The method further includes the steps of calculating a coding gain of each pixel in the frame based on the local spatial features and the usefulness metric in accordance with the frame type. Finally, the method also includes the steps of applying the coding gain to at least one sharpness enhancement algorithm, and generating an enhanced digital video signal by application of the sharpness enhancement algorithm.

    摘要翻译： 根据本发明，提供一种用于增强表示数字视频系统中至少一帧的编码数字视频信号的图像质量的方法和系统。 该方法包括以下步骤：创建识别对编码的数字视频信号应用于锐度增强的限制的有用度量，定义帧中的局部空间特征，以及识别帧的帧类型。 在创建步骤中创建的有用度量是：其中UME是有用度量，q_scale是宏块的量化比例，num_bits是编码亮度块的位数，max是表示帧的最大值的函数， M和N是缩放因子。 该方法还包括以下步骤：基于根据帧类型的局部空间特征和有用度量来计算帧中每个像素的编码增益。 最后，该方法还包括以下步骤：将编码增益应用于至少一个锐度增强算法，以及通过应用锐度增强算法生成增强数字视频信号。

    Luminance transient improvemet using video encoding metric for digital video processing
    7.
    发明申请
    Luminance transient improvemet using video encoding metric for digital video processing 审中-公开
    亮度瞬态改善使用视频编码度量进行数字视频处理

    公开(公告)号：US20070159556A1

    公开(公告)日：2007-07-12

    申请号：US10599064

    申请日：2004-03-25

    申请人： Yibin Yang ,  Lilla Boroczky

    发明人： Yibin Yang ,  Lilla Boroczky

    IPC分类号： H04N5/21

    CPC分类号： H04N5/208

    摘要： A method of improving luminance transition includes decoding a coded video bitstream around a transition from a first luminance level to a second luminance level; and providing luminance transition enhancement based on a metric indicative of video bitstream. Additionally, an apparatus that improves a luminance transition includes a video decoder and a module that determines a metric indicative of the degree of video coding artifacts in a signal. The apparatus also includes a video processing module that includes a luminance transient enhancement module. The luminance enhancement module provides transition based on at least a value of the metric at the transition.

    摘要翻译： 一种改善亮度转换的方法包括：在从第一亮度级转换到第二亮度级的过程中解码编码视频比特流; 以及基于指示视频比特流的度量来提供亮度转换增强。 另外，改善亮度转换的装置包括视频解码器和确定指示信号中的视频编码伪像程度的度量的模块。 该装置还包括包括亮度瞬态增强模块的视频处理模块。 亮度增强模块基于至少在转换处的度量的值提供转换。