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    • 22. 发明授权
    • 3-way switch for a gas-insulated apparatus
    • 用于气体绝缘设备的三通开关
    • US09147540B2
    • 2015-09-29
    • US14126532
    • 2012-02-21
    • Chul-Ho Lee
    • Chul-Ho Lee
    • H01H33/42H01H31/00H01H31/32H01H1/38H01H33/64
    • H01H33/42H01H1/38H01H31/003H01H31/32H01H33/64
    • A 3-way switch for a gas-insulated apparatus includes a first connecting part and a second connecting part perpendicular to the first connecting part, a support conductor having a first guide hole perpendicular to the direction of the first connecting part and a second guide hole in parallel to the direction of the second connecting part, a disconnecting switch (DS) operating part slidably coupled to the first guide hole, an earthing switch (ES) operating part slidably coupled to the second guide hole such that the ES operating part is perpendicular to the disconnecting switch operating part, and a main lever, one end of which is rotatably coupled to the support conductor and the other end of which is eccentrically rotated and rotatably connected to the DS operating part and the ES operating part for linear sliding of the DS operating part and the ES operating part.
    • 一种用于气体绝缘设备的三通开关包括:第一连接部分和垂直于第一连接部分的第二连接部分;支撑导体,具有垂直于第一连接部分的方向的第一引导孔和第二引导孔 平行于所述第二连接部件的方向,可滑动地连接到所述第一引导孔的断开开关(DS)操作部分,可滑动地联接到所述第二引导孔的接地开关(ES)操作部分,使得所述ES操作部件垂直 分离开关操作部分和主杆,其一端可旋转地联接到支撑导体,并且其另一端偏心地旋转并可旋转地连接到DS操作部分和ES操作部分,用于线性滑动 DS操作部分和ES操作部分。
    • 28. 发明授权
    • Histogram equalization method and device in contrast enhancement
apparatus for image processing system
    • 用于图像处理系统的对比度增强装置中的直方图均衡方法和装置
    • US6163621A
    • 2000-12-19
    • US32223
    • 1998-02-27
    • Joon Ki PaikSung-Il SuChul-Ho Lee
    • Joon Ki PaikSung-Il SuChul-Ho Lee
    • G06T1/00G06K9/20G06T5/00G06T7/00H04N5/202G06K9/00
    • G06K9/00442
    • In contrast enhancement during image processing, a histogram equalization process or apparatus divides an equalization image screen into overlapping windows and performs histogram equalization on each window. Using windows improves contrast of pixel values that are rare throughout the entire image and reduces or prevents loss of information represented by the rare pixel values. Overlapping the windows reduces discontinuities at the boundaries of the windows. The size and overlap of the windows can be adjusted according to the time available for equalization and can be optimized according to the desired image quality improvement. The histogram equalization can be selectively performed on an entire image screen or any part thereof to reduce image degradation in the entire or part of an image. As a further aspect of the invention, to reduce the number of operations required for equalization, a histogram for a current window is obtained starting from the histogram for a previous window. To further improve image quality, a histogram equalization apparatus uses low-pass- or band-pass-filtered pixel data as a lookup table address to output a histogram-equalized value. This helps remove amplified thermal or quantization noise.
    • 相比之下,在图像处理期间的增强,直方图均衡处理或装置将均衡图像屏幕划分成重叠的窗口,并在每个窗口上执行直方图均衡。 使用Windows可以改善整个图像中罕见的像素值的对比度,并减少或防止由罕见像素值表示的信息丢失。 重叠窗口减少窗口边界的不连续性。 窗口的尺寸和重叠可以根据可用于均衡的时间进行调整,并可根据所需的图像质量改进进行优化。 可以在整个图像屏幕或其任何部分上选择性地执行直方图均衡以减少图像的全部或部分中的图像劣化。 作为本发明的另一方面,为了减少均衡所需的操作次数,从先前窗口的直方图开始,获得当前窗口的直方图。 为了进一步提高图像质量,直方图均衡装置使用低通或带通滤波像素数据作为查找表地址来输出直方图均衡值。 这有助于消除放大的热量化或量化噪声。