Classified adaptive error recovery method and apparatus
    161.
    发明授权
    Classified adaptive error recovery method and apparatus 有权
    分类自适应误差恢复方法和装置

    公开(公告)号:US06307979B1

    公开(公告)日:2001-10-23

    申请号:US09249911

    申请日:1999-02-12

    CPC classification number: G06T5/20

    Abstract: A method, apparatus, and article of manufacture for restoring a deteriorated signal to an undeteriorated signal. A deteriorated signal consists of a plurality of deteriorated and undeteriorated data points. For each deteriorated data point, a plurality of class types is created based upon characteristics of the area containing the deteriorated data point. The data point is classified with respect to one of the plurality of class types and assigned a corresponding input signal class. The undeteriorated signal is generated by adaptively filtering the deteriorated input signal in accordance with the input signal classification result. More than one classification method is used to create the plurality of class types. Created classes may include a motion class, an error class, a spatial class or a spatial activity class.

    Abstract translation: 一种用于将恶化信号恢复到未衰减信号的方法,装置和制品。 恶化的信号由多个恶化和未经改进的数据点组成。 对于每个恶化的数据点,基于包含恶化的数据点的区域的特性来创建多个类类型。 数据点相对于多个类型之一被分类并分配相应的输入信号类。 通过根据输入信号分类结果对劣化输入信号进行自适应滤波,产生未衰减的信号。 使用多种分类方法来创建多个类类型。 创建的类可以包括运动类,错误类,空间类或空间活动类。

    Source encoding using shuffling of data to provide robust error recovery in a burst error-environment
    162.
    发明授权
    Source encoding using shuffling of data to provide robust error recovery in a burst error-environment 失效
    源编码使用混洗数据在突发错误环境中提供鲁棒的错误恢复

    公开(公告)号:US06298085B1

    公开(公告)日:2001-10-02

    申请号:US09111357

    申请日:1998-07-06

    Abstract: A system and method for source coding a signal to localize transmission errors to a set of samples is disclosed. The signal comprises a plurality of signal elements (SEs) with each SE having a plurality of components. The signal is divided into a plurality of data sets with each data set having a set of SEs. Each SE component of a data set is grouped into a plurality of divisions with each SE component having a plurality of bits. The plurality of bits of the SE components are distributed from the plurality of divisions across a generated bitstream. In one embodiment, this is used in the transmission of video signals over a potentially lossy communications channel.

    Abstract translation: 公开了一种用于对信号进行源编码以将传输错误定位到一组样本的系统和方法。 信号包括多个信号元件(SE),每个SE具有多个分量。 信号被分成多个数据集,每个数据集具有一组SE。 数据集的每个SE分量被分组成多个分割,每个SE分量具有多个位。 SE组件的多个比特通过生成的比特流从多个分区分布。 在一个实施例中,这用于通过潜在有损耗的通信信道传输视频信号。

    Signal conversion apparatus and method
    163.
    发明授权
    Signal conversion apparatus and method 失效
    信号转换装置及方法

    公开(公告)号:US06297855B1

    公开(公告)日:2001-10-02

    申请号:US09218527

    申请日:1998-12-22

    CPC classification number: H04N9/78

    Abstract: A simplified Y/C separation circuit in which, a plurality of luminance signals are calculated for the subject pixel based on an NTSC signal of the subject pixel and NTSC signals of pixels that are close to the subject pixel spatially or temporally. Correlations between the plurality of luminance signals are obtained in a difference circuit and a comparison circuit. In a classification circuit, classification is performed, that is, the subject pixel is classified as belonging to a certain class, based on the correlations between the plurality of luminance signals. Prediction coefficients corresponding to the class of the subject pixel are read out from a prediction coefficients memory section. The RGB luminance signals of the subject pixel are then determined by calculating prescribed linear first-order formulae.

    Abstract translation: 一种简化的Y / C分离电路,其中,基于对象像素的NTSC信号和在空间上或时间上接近被摄体像素的像素的NTSC信号,针对被摄体像素计算多个亮度信号。 在差分电路和比较电路中获得多个亮度信号之间的相关性。 在分类电路中,基于多个亮度信号之间的相关性,进行分类,即,将被摄体像素分类为属于某一类别。 从预测系数存储部读出与被摄体像素的类别对应的预测系数。 然后通过计算规定的线性一阶公式来确定目标像素的RGB亮度信号。

    Image signal interpolating apparatus
    164.
    发明授权
    Image signal interpolating apparatus 失效
    图像信号内插装置

    公开(公告)号:US06285714B1

    公开(公告)日:2001-09-04

    申请号:US08562429

    申请日:1995-11-24

    CPC classification number: H04N19/98 H04N19/587 H04N19/593

    Abstract: An image signal interpolation apparatus converts an image signal having a first resolution into a second image signal having a second resolution that is greater than the first resolution. A characteristic, e.g., a degree of flatness, of an area in the image signal surrounding a picture element to be interpolated is detected, and various picture elements surrounding the picture element to be interpolated are selected based on the amount of the characteristic, e.g., the degree of flateness. A class of the picture element to be interpolated is generated using the values of the selected picture elements, predicted data are generated from the determined class and a reference image signal having the greater resolution, and the picture element to be interpolated is produced from the predicted data.

    Abstract translation: 图像信号插值装置将具有第一分辨率的图像信号转换为具有大于第一分辨率的第二分辨率的第二图像信号。 检测周边要被内插的像素的图像信号中的区域的特性,例如平坦度,并且基于特征量来选择围绕要内插的像素的各种图像元素,例如, 平整度。 使用所选择的图像元素的值生成待内插的图像元素的类别,从所确定的类别生成预测数据,并且生成具有更高分辨率的参考图像信号,并且从预测的图像元素生成待内插的图像元素 数据。

    Method and apparatus for separating/generating background and motion object planes
    166.
    发明授权
    Method and apparatus for separating/generating background and motion object planes 失效
    用于分离/产生背景和运动物体平面的方法和装置

    公开(公告)号:US06275617B1

    公开(公告)日:2001-08-14

    申请号:US08904928

    申请日:1997-08-01

    Inventor: Tetsujiro Kondo

    Abstract: A transmitter which allows to reproduce a high quality and smooth dynamic image on the receiving side even with a transmission medium having a low transmission rate is provided. Background plane data representing a still image of a background image of video and one or more motion plane data representing still images of each of moving objects moving on the background image are separated from input digital video signal. The separated background plane data and each motion plane data are stored individually in memories 23BG and 23A1 through 23An. Change data on the still images stored as the motion plane data is detected based on the input digital video signal and output of the memories 23BG and 23A1 through 23An to compress and code it by a coding means 26. Still image data of the plurality of plane data of the memory means 23BG and 23A1 through 23An and the change information from the coding means 26 are transmitted.

    Abstract translation: 提供了一种允许在接收侧再现高质量和平滑的动态图像的发射机,即使是具有低传输速率的传输介质。 表示视频的背景图像的静止图像的背景平面数据和表示在背景图像上移动的每个移动物体的静止图像的一个或多个运动平面数据与输入数字视频信号分离。 分离的背景平面数据和每个运动平面数据分别存储在存储器23BG和23A1至23An中。 基于输入的数字视频信号和存储器23BG和23A1至23An的输出来检测作为运动平面数据存储的静止图像上的数据,以由编码装置26进行压缩和编码。多个平面的静止图像数据 发送存储装置23BG和23A1至23An的数据和来自编码装置26的改变信息。

    Motion determining apparatus, method thereof, and picture information converting apparatus
    168.
    发明授权
    Motion determining apparatus, method thereof, and picture information converting apparatus 有权
    运动确定装置,方法和图像信息转换装置

    公开(公告)号:US06201833B1

    公开(公告)日:2001-03-13

    申请号:US09371356

    申请日:1999-08-10

    Abstract: A motion determining apparatus for detecting a motion of a partial picture of an input picture signal is disclosed, that comprises a first detecting means for detecting a frame difference of the partial picture, a second detecting means for detecting a spatial activity of the partial picture, a threshold value generating means for generating a first threshold value, a second threshold value, and a third threshold value, a comparing means having at least a first comparing portion for comparing the frame difference detected by said first detecting means with the first threshold value and a second comparing portion for comparing the frame difference detected by said first detecting means with the second threshold value, a third comparing means for comparing the spatial activity detected by said second detecting means with the third threshold value, and a motion class determining means for receiving the compared results of said first comparing portion, said second comparing portion, and said third comparing means and determining the motion of the partial picture in at least three levels.

    Abstract translation: 公开了一种用于检测输入图像信号的部分图像的运动的运动确定装置,其包括用于检测部分图像的帧差的第一检测装置,用于检测部分图像的空间活动的第二检测装置, 用于产生第一阈值,第二阈值和第三阈值的阈值产生装置,具有至少第一比较部分的比较装置,用于将由所述第一检测装置检测的帧差与第一阈值进行比较;以及 第二比较部分,用于将由所述第一检测装置检测的帧差与第二阈值进行比较;第三比较装置,用于将由所述第二检测装置检测的空间活动与第三阈值进行比较;以及运动类别确定装置, 所述第一比较部分,所述第二比较部分和sa的比较结果 id第三比较装置,并在至少三个级别确定部分图像的运动。

    Image coding and decoding using mapping coefficients corresponding to class information of pixel blocks
    169.
    发明授权
    Image coding and decoding using mapping coefficients corresponding to class information of pixel blocks 失效
    使用与像素块的类信息对应的映射系数的图像编码和解码

    公开(公告)号:US06198770B1

    公开(公告)日:2001-03-06

    申请号:US08892570

    申请日:1997-07-15

    Inventor: Tetsujiro Kondo

    CPC classification number: H04N19/94 H04N19/61 H04N19/63 H04N19/98

    Abstract: It is possible to produce a decoded image with a high image quality from data of the lowermost hierarchy obtained during hierarchical coding operation. An image of a first hierarchy equal to an original image is successively thinned in thinning units so that an image of a second hierarchy and an image of a third hierarchy are formed. Then, in an optimum correction data calculating unit, the image of the second hierarchy is corrected, a prediction value of the image of the first hierarchy is predicted from the resultant correction data, and correction data of the image of the second hierarchy is generated to reduce a prediction error of the prediction value lower than a preselected threshold. In another optimum correction data calculating unit, correction data of the image of the third hierarchy is similarly obtained.

    Abstract translation: 可以从分层编码操作中获得的最下层的数据产生具有高图像质量的解码图像。 相对于原始图像的第一层次的图像在稀疏单元中被连续变薄,从而形成第二层次的图像和第三层的图像。 然后,在最佳校正数据计算单元中,校正第二层的图像,根据所得到的校正数据预测第一层的图像的预测值,并生成第二层的图像的校正数据, 减少预测值比预选阈值低的预测误差。 在另一个最佳校正数据计算单元中,类似地获得第三层次的图像的校正数据。

    Method and apparatus for adaptive filter tap selection according to a class
    170.
    发明授权
    Method and apparatus for adaptive filter tap selection according to a class 有权
    根据类别的自适应滤波器抽头选择的方法和装置

    公开(公告)号:US06192161B1

    公开(公告)日:2001-02-20

    申请号:US09249491

    申请日:1999-02-12

    Abstract: A method, apparatus, and article of manufacture for restoring a deteriorated signal to an undeteriorated signal. A deteriorated signal consists of a plurality of deteriorated and undeteriorated data points. For each deteriorated data point, a plurality of class types is created based upon characteristics of the area containing the deteriorated data point. The data point is classified with respect to one of the plurality of class types and assigned a corresponding input signal class. The undeteriorated signal is generated by adaptively filtering the deteriorated input signal in accordance with the input signal classification result. More than one classification method is used to create the plurality of class types. Created classes may include a motion class, an error class, a spatial class or a spatial activity class. The filter taps are selected adaptively according to the plurality of class types. The filter taps may be selected adaptively according to the motion and error class.

    Abstract translation: 一种用于将恶化信号恢复到未衰减信号的方法,装置和制品。 恶化的信号由多个恶化和未经改进的数据点组成。 对于每个恶化的数据点,基于包含恶化的数据点的区域的特性来创建多个类类型。 数据点相对于多个类型之一被分类并分配相应的输入信号类。 通过根据输入信号分类结果对劣化输入信号进行自适应滤波,产生未衰减的信号。 使用多种分类方法来创建多个类类型。 创建的类可以包括运动类,错误类,空间类或空间活动类。 滤波器抽头根据多种类型自适应地选择。 可以根据运动和误差等级自适应地选择滤波器抽头。

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