Method and apparatus for detecting and smoothing diagonal features in video images
    11.
    发明授权
    Method and apparatus for detecting and smoothing diagonal features in video images 有权
    用于检测和平滑视频图像中的对角线特征的方法和装置

    公开(公告)号:US06829013B2

    公开(公告)日:2004-12-07

    申请号:US10191764

    申请日:2002-07-08

    IPC分类号: H04N701

    摘要: A digital image processor includes an input buffer operable to receive an interlaced video stream and a digital memory for storing portions of the interlaced video stream. An output buffer is operable to transmit a deinterlaced video stream. Also included is a deinterlacing processor coupled between said input buffer and said output buffer and to said digital memory, said deinterlacing processor is operable to store portions of said received interlaced video stream from said input buffer into said digital memory and to detect diagonal features in said portions of said received interlaced video stream in said digital memory, and to generate said deinterlaced video stream having smoothed diagonal features therefrom.

    摘要翻译: 数字图像处理器包括可操作以接收隔行视频流的输入缓冲器和用于存储交错视频流的部分的数字存储器。 输出缓冲器可操作地发送去隔行视频流。 还包括耦合在所述输入缓冲器和所述输出缓冲器之间的去隔行处理器和所述数字存储器,所述去隔行处理器可操作以将所述接收到的隔行扫描视频流的部分从所述输入缓冲器存储到所述数字存储器中并检测所述数字存储器中的对角线特征 在所述数字存储器中所述接收的隔行扫描视频流的部分,并且产生具有平滑对角线特征的所述去隔行视频流。

    Method and apparatus for detecting and smoothing diagonal features video images
    12.
    发明授权
    Method and apparatus for detecting and smoothing diagonal features video images 有权
    用于检测和平滑对角线特征视频图像的方法和装置

    公开(公告)号:US06515706B1

    公开(公告)日:2003-02-04

    申请号:US09396993

    申请日:1999-09-15

    IPC分类号: H04N701

    摘要: A digital image processor is provided. The digital image processor includes a deinterlacing processor coupled between an input buffer operable to receive an interlaced video stream and an output operable to transmit a deinterlaced video stream. The deinterlacing processor is also coupled to a digital memory for storing portions of the interlaced video signal. The deinterlacing processor is operable to detect said diagonal features in the portions of the received interlaced video stream and to generate the deinterlaced video stream having smoothed diagonal features.

    摘要翻译: 提供数字图像处理器。 数字图像处理器包括耦合在可操作以接收隔行视频流的输入缓冲器和可操作以发送去隔行视频流的输出之间的去隔行处理器。 去隔行处理器还耦合到数字存储器,用于存储隔行视频信号的部分。 去隔行处理器可操作以检测所接收的隔行视频流的部分中的所述对角线特征并产生具有平滑对角线特征的去隔行视频流。

    Detection and repair of MPEG-2 chroma upconversion artifacts
    14.
    发明授权
    Detection and repair of MPEG-2 chroma upconversion artifacts 有权
    检测和修复MPEG-2色度上变换伪像

    公开(公告)号:US07408992B2

    公开(公告)日:2008-08-05

    申请号:US10663413

    申请日:2003-09-15

    申请人: Dale R. Adams

    发明人: Dale R. Adams

    IPC分类号: H04N7/12 H04N11/20

    CPC分类号: H04N9/646 H04N7/012

    摘要: A method for removing MPEG-2 chroma upconversion artifacts in a video stream includes detecting a presence of artifacts in an incorrectly upsampled MPEG-2 video stream and removing the presence of artifacts resulting in an artifact free video stream.

    摘要翻译: 一种用于去除视频流中的MPEG-2色度上变频伪像的方法包括:检测出错误地上采样的MPEG-2视频流中的伪影的存在,并消除导致伪像视频流的伪影的存在。

    Interlace motion artifact detection using vertical frequency detection and analysis
    15.
    发明授权
    Interlace motion artifact detection using vertical frequency detection and analysis 有权
    使用垂直频率检测和分析的隔行扫描运动伪影检测

    公开(公告)号:US06909469B2

    公开(公告)日:2005-06-21

    申请号:US09941949

    申请日:2001-08-28

    申请人: Dale R. Adams

    发明人: Dale R. Adams

    摘要: An interlace motion artifact detector which identifies video image spatial frequencies characteristic of motion artifacts. The detected frequency is the maximum which can be represented by the vertical sampling rate of the video format (i.e., the Nyquist frequency). This frequency is detected by a pair of partial Discrete Fourier Transforms (DFT) which each calculate only the frequency component of interest. Additional vertical frequency components at one half and one quarter the interlace motion artifact frequency are also detected via a partial DFT. The presence of these lower frequencies acts as an indication of an erroneous motion artifact detection. Additionally, the dynamic range and maximum level of the video data is used as an indication of when to boost the frequency detection levels in areas of low brightness and/or contrast.

    摘要翻译: 一种交错运动伪像检测器,用于识别运动伪影特征的视频图像空间频率。 检测到的频率是由视频格式的垂直采样率(即奈奎斯特频率)表示的最大值。 该频率由一对部分离散傅里叶变换(DFT)检测,每个部分离散傅里叶变换(DFT)仅计算感兴趣的频率分量。 也可以通过部分DFT检测交错运动伪影频率的一半和四分之一处的附加垂直频率分量。 这些较低频率的存在作为错误运动伪像检测的指示。 此外,视频数据的动态范围和最大电平被用作在低亮度和/或对比度区域中升高频率检测电平的时间的指示。

    Apparatus and method for automatic monitoring and control of stencil
printing
    16.
    发明授权
    Apparatus and method for automatic monitoring and control of stencil printing 失效
    用于自动监控和模板印刷的设备和方法

    公开(公告)号:US5709905A

    公开(公告)日:1998-01-20

    申请号:US789252

    申请日:1997-01-28

    摘要: A stencil printing apparatus (100) is provided for printing a solder paste (108), through apertures (104) in a stencil (102), onto metallized portions of a printed circuit substrate (106). The printing apparatus contains a laser surface profiling device (114) which is used to produce 2- and 3-dimensional profiles of a portion of the surface of solder paste adjacent to a squeegee (110). Data is processed and sent to a controller (118) which is coupled to a solder paste dispenser (112). The controller automatically signals the dispenser (112) to dispense additional solder paste at deficient locations as needed.

    摘要翻译: 提供了一种模版印刷设备(100),用于通过模版(102)中的孔(104)将焊膏(108)印刷到印刷电路基板(106)的金属化部分上。 该印刷设备包含激光表面成型装置(114),该激光表面成形装置用于产生邻近刮板(110)的焊膏表面的一部分的2维和3维轮廓。 数据被处理并发送到耦合到焊膏分配器(112)的控制器(118)。 控制器根据需要自动发信号给分配器(112)以在不足的位置分配附加的焊膏。

    System for supporting a printed circuit board during assembly
    17.
    发明授权
    System for supporting a printed circuit board during assembly 失效
    组装时支撑印刷电路板的系统

    公开(公告)号:US5707052A

    公开(公告)日:1998-01-13

    申请号:US703123

    申请日:1996-08-26

    IPC分类号: H05K13/00 B25B11/00

    CPC分类号: H05K13/0069 Y10S269/903

    摘要: system of helically coiled air hoses (18) supports a printed circuit board (14) in an assembly station, and allows the conveyor rails (15, 16) to adjust in and out, accommodating various widths of printed circuit boards (PCB). One of the conveyor rails is fixed and the other is movable. Air hoses are each formed in a helix and placed below the PCB and above the upper work surface of the assembly station, and arranged so that when the air hoses are pressurized the helix expands in diameter to become wedged between the work surface and the PCB to support it from below. One end of each of the air hoses is connected to the fixed rail and the other end is connected to the movable rail. The hoses are sufficiently flexible so as to be free to move about in a lateral direction, but they are diametrically rigid to prevent the diameter of each hose from changing substantially when the hoses are pressurized. The individual coils of the helix can be easily deflected by any protruding components on the bottom side of a printed circuit assembly as it shuttles into the assembly station. When the hoses are pressurized, the coils stiffen to support the PCB from the bottom, substantially preventing deformation of the PCB when a force is exerted upon it from above.

    摘要翻译: 螺旋卷曲的空气软管(18)的系统支撑组装工位中的印刷电路板(14),并且允许输送轨道(15,16)调节进出,以适应各种宽度的印刷电路板(PCB)。 其中一个输送轨是固定的,另一个是可移动的。 空气软管各自以螺旋形式形成并放置在PCB的下方和组装工位的上部工作表面之上,并且布置成使得当空气软管被加压时,螺旋直径膨胀以楔入工作表面和PCB之间 从下面支持它。 每个空气软管的一端连接到固定导轨,另一端连接到活动导轨上。 软管具有足够的柔性,以便在横向方向上自由移动,但是它们具有直径刚性,以防止当软管被加压时每个软管的直径基本上改变。 当印刷电路组件穿过组装工位时,螺旋线的单个线圈可容易地被印刷电路组件的底侧上的突出部件偏转。 当软管被加压时,线圈加强以从底部支撑PCB,基本上防止当从上方施加力时PCB的变形。

    Interlace motion artifact detection using vertical frequency detection and analysis
    19.
    发明授权
    Interlace motion artifact detection using vertical frequency detection and analysis 有权
    使用垂直频率检测和分析的隔行扫描运动伪影检测

    公开(公告)号:US07391481B2

    公开(公告)日:2008-06-24

    申请号:US11054748

    申请日:2005-02-09

    申请人: Dale R. Adams

    发明人: Dale R. Adams

    IPC分类号: H04N5/14

    摘要: An interlace motion artifact detector which identifies video image spatial frequencies characteristic of motion artifacts. The detected frequency is the maximum which can be represented by the vertical sampling rate of the video format (i.e., the Nyquist frequency). This frequency is detected by a pair of partial Discrete Fourier Transforms (DFT) which each calculate only the frequency component of interest. Additional vertical frequency components at one half and one quarter the interlace motion artifact frequency are also detected via a partial DFT. The presence of these lower frequencies acts as an indication of an erroneous motion artifact detection. Additionally, the dynamic range and maximum level of the video data is used as an indication of when to boost the frequency detection levels in areas of low brightness and/or contrast.

    摘要翻译: 一种交错运动伪像检测器,用于识别运动伪影特征的视频图像空间频率。 检测到的频率是由视频格式的垂直采样率(即奈奎斯特频率)表示的最大值。 该频率由一对部分离散傅里叶变换(DFT)检测,每个部分离散傅里叶变换(DFT)仅计算感兴趣的频率分量。 也可以通过部分DFT检测交错运动伪影频率的一半和四分之一处的附加垂直频率分量。 这些较低频率的存在作为错误运动伪像检测的指示。 此外,视频数据的动态范围和最大电平被用作在低亮度和/或对比度区域中升高频率检测电平的时间的指示。

    Interlace Motion Artifact Detection Using Vertical Frequency Detection And Analysis
    20.
    发明申请
    Interlace Motion Artifact Detection Using Vertical Frequency Detection And Analysis 有权
    使用垂直频率检测和分析的交错运动伪像检测

    公开(公告)号:US20080122974A1

    公开(公告)日:2008-05-29

    申请号:US11932808

    申请日:2007-10-31

    申请人: Dale R. Adams

    发明人: Dale R. Adams

    摘要: An interlace motion artifact detector which identifies video image spatial frequencies characteristic of motion artifacts. The detected frequency is the maximum which can be represented by the vertical sampling rate of the video format (i.e., the Nyquist frequency). This frequency is detected by a pair of partial Discrete Fourier Transforms (DFT) which each calculate only the frequency component of interest. Additional vertical frequency components at one half and one quarter the interlace motion artifact frequency are also detected via a partial DFT. The presence of these lower frequencies acts as an indication of an erroneous motion artifact detection. Additionally, the dynamic range and maximum level of the video data is used as an indication of when to boost the frequency detection levels in areas of low brightness and/or contrast.

    摘要翻译: 一种交错运动伪像检测器,用于识别运动伪影特征的视频图像空间频率。 检测到的频率是由视频格式的垂直采样率(即奈奎斯特频率)表示的最大值。 该频率由一对部分离散傅里叶变换(DFT)检测,每个部分离散傅里叶变换(DFT)仅计算感兴趣的频率分量。 也可以通过部分DFT检测交错运动伪影频率的一半和四分之一处的附加垂直频率分量。 这些较低频率的存在作为错误运动伪像检测的指示。 此外,视频数据的动态范围和最大电平被用作在低亮度和/或对比度区域中升高频率检测电平的时间的指示。